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--- /dev/null
+(function(){if (!Date.now) Date.now = function() {
+ return +new Date;
+};
+try {
+ document.createElement("div").style.setProperty("opacity", 0, "");
+} catch (error) {
+ var d3_style_prototype = CSSStyleDeclaration.prototype,
+ d3_style_setProperty = d3_style_prototype.setProperty;
+ d3_style_prototype.setProperty = function(name, value, priority) {
+ d3_style_setProperty.call(this, name, value + "", priority);
+ };
+}
+d3 = {version: "2.8.1"}; // semver
+function d3_class(ctor, properties) {
+ try {
+ for (var key in properties) {
+ Object.defineProperty(ctor.prototype, key, {
+ value: properties[key],
+ enumerable: false
+ });
+ }
+ } catch (e) {
+ ctor.prototype = properties;
+ }
+}
+var d3_array = d3_arraySlice; // conversion for NodeLists
+
+function d3_arrayCopy(pseudoarray) {
+ var i = -1, n = pseudoarray.length, array = [];
+ while (++i < n) array.push(pseudoarray[i]);
+ return array;
+}
+
+function d3_arraySlice(pseudoarray) {
+ return Array.prototype.slice.call(pseudoarray);
+}
+
+try {
+ d3_array(document.documentElement.childNodes)[0].nodeType;
+} catch(e) {
+ d3_array = d3_arrayCopy;
+}
+
+var d3_arraySubclass = [].__proto__?
+
+// Until ECMAScript supports array subclassing, prototype injection works well.
+function(array, prototype) {
+ array.__proto__ = prototype;
+}:
+
+// And if your browser doesn't support __proto__, we'll use direct extension.
+function(array, prototype) {
+ for (var property in prototype) array[property] = prototype[property];
+};
+d3.map = function(object) {
+ var map = new d3_Map;
+ for (var key in object) map.set(key, object[key]);
+ return map;
+};
+
+function d3_Map() {}
+
+d3_class(d3_Map, {
+ has: function(key) {
+ return d3_map_prefix + key in this;
+ },
+ get: function(key) {
+ return this[d3_map_prefix + key];
+ },
+ set: function(key, value) {
+ return this[d3_map_prefix + key] = value;
+ },
+ remove: function(key) {
+ key = d3_map_prefix + key;
+ return key in this && delete this[key];
+ },
+ keys: function() {
+ var keys = [];
+ this.forEach(function(key) { keys.push(key); });
+ return keys;
+ },
+ values: function() {
+ var values = [];
+ this.forEach(function(key, value) { values.push(value); });
+ return values;
+ },
+ entries: function() {
+ var entries = [];
+ this.forEach(function(key, value) { entries.push({key: key, value: value}); });
+ return entries;
+ },
+ forEach: function(f) {
+ for (var key in this) {
+ if (key.charCodeAt(0) === d3_map_prefixCode) {
+ f.call(this, key.substring(1), this[key]);
+ }
+ }
+ }
+});
+
+var d3_map_prefix = "\0", // prevent collision with built-ins
+ d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
+function d3_this() {
+ return this;
+}
+d3.functor = function(v) {
+ return typeof v === "function" ? v : function() { return v; };
+};
+// Copies a variable number of methods from source to target.
+d3.rebind = function(target, source) {
+ var i = 1, n = arguments.length, method;
+ while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
+ return target;
+};
+
+// Method is assumed to be a standard D3 getter-setter:
+// If passed with no arguments, gets the value.
+// If passed with arguments, sets the value and returns the target.
+function d3_rebind(target, source, method) {
+ return function() {
+ var value = method.apply(source, arguments);
+ return arguments.length ? target : value;
+ };
+}
+d3.ascending = function(a, b) {
+ return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+};
+d3.descending = function(a, b) {
+ return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+};
+d3.mean = function(array, f) {
+ var n = array.length,
+ a,
+ m = 0,
+ i = -1,
+ j = 0;
+ if (arguments.length === 1) {
+ while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
+ } else {
+ while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
+ }
+ return j ? m : undefined;
+};
+d3.median = function(array, f) {
+ if (arguments.length > 1) array = array.map(f);
+ array = array.filter(d3_number);
+ return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
+};
+d3.min = function(array, f) {
+ var i = -1,
+ n = array.length,
+ a,
+ b;
+ if (arguments.length === 1) {
+ while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = array[i]) != null && a > b) a = b;
+ } else {
+ while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
+ }
+ return a;
+};
+d3.max = function(array, f) {
+ var i = -1,
+ n = array.length,
+ a,
+ b;
+ if (arguments.length === 1) {
+ while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = array[i]) != null && b > a) a = b;
+ } else {
+ while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
+ }
+ return a;
+};
+d3.extent = function(array, f) {
+ var i = -1,
+ n = array.length,
+ a,
+ b,
+ c;
+ if (arguments.length === 1) {
+ while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
+ while (++i < n) if ((b = array[i]) != null) {
+ if (a > b) a = b;
+ if (c < b) c = b;
+ }
+ } else {
+ while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+ while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
+ if (a > b) a = b;
+ if (c < b) c = b;
+ }
+ }
+ return [a, c];
+};
+d3.random = {
+ normal: function(mean, deviation) {
+ if (arguments.length < 2) deviation = 1;
+ if (arguments.length < 1) mean = 0;
+ return function() {
+ var x, y, r;
+ do {
+ x = Math.random() * 2 - 1;
+ y = Math.random() * 2 - 1;
+ r = x * x + y * y;
+ } while (!r || r > 1);
+ return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r);
+ };
+ }
+};
+function d3_number(x) {
+ return x != null && !isNaN(x);
+}
+d3.sum = function(array, f) {
+ var s = 0,
+ n = array.length,
+ a,
+ i = -1;
+
+ if (arguments.length === 1) {
+ while (++i < n) if (!isNaN(a = +array[i])) s += a;
+ } else {
+ while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
+ }
+
+ return s;
+};
+// R-7 per <http://en.wikipedia.org/wiki/Quantile>
+d3.quantile = function(values, p) {
+ var H = (values.length - 1) * p + 1,
+ h = Math.floor(H),
+ v = values[h - 1],
+ e = H - h;
+ return e ? v + e * (values[h] - v) : v;
+};
+d3.transpose = function(matrix) {
+ return d3.zip.apply(d3, matrix);
+};
+d3.zip = function() {
+ if (!(n = arguments.length)) return [];
+ for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) {
+ for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) {
+ zip[j] = arguments[j][i];
+ }
+ }
+ return zips;
+};
+
+function d3_zipLength(d) {
+ return d.length;
+}
+d3.bisector = function(f) {
+ return {
+ left: function(a, x, lo, hi) {
+ if (arguments.length < 3) lo = 0;
+ if (arguments.length < 4) hi = a.length;
+ while (lo < hi) {
+ var mid = lo + hi >> 1;
+ if (f.call(a, a[mid], mid) < x) lo = mid + 1;
+ else hi = mid;
+ }
+ return lo;
+ },
+ right: function(a, x, lo, hi) {
+ if (arguments.length < 3) lo = 0;
+ if (arguments.length < 4) hi = a.length;
+ while (lo < hi) {
+ var mid = lo + hi >> 1;
+ if (x < f.call(a, a[mid], mid)) hi = mid;
+ else lo = mid + 1;
+ }
+ return lo;
+ }
+ };
+};
+
+var d3_bisector = d3.bisector(function(d) { return d; });
+d3.bisectLeft = d3_bisector.left;
+d3.bisect = d3.bisectRight = d3_bisector.right;
+d3.first = function(array, f) {
+ var i = 0,
+ n = array.length,
+ a = array[0],
+ b;
+ if (arguments.length === 1) f = d3.ascending;
+ while (++i < n) {
+ if (f.call(array, a, b = array[i]) > 0) {
+ a = b;
+ }
+ }
+ return a;
+};
+d3.last = function(array, f) {
+ var i = 0,
+ n = array.length,
+ a = array[0],
+ b;
+ if (arguments.length === 1) f = d3.ascending;
+ while (++i < n) {
+ if (f.call(array, a, b = array[i]) <= 0) {
+ a = b;
+ }
+ }
+ return a;
+};
+d3.nest = function() {
+ var nest = {},
+ keys = [],
+ sortKeys = [],
+ sortValues,
+ rollup;
+
+ function map(array, depth) {
+ if (depth >= keys.length) return rollup
+ ? rollup.call(nest, array) : (sortValues
+ ? array.sort(sortValues)
+ : array);
+
+ var i = -1,
+ n = array.length,
+ key = keys[depth++],
+ keyValue,
+ object,
+ valuesByKey = new d3_Map,
+ values,
+ o = {};
+
+ while (++i < n) {
+ if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
+ values.push(object);
+ } else {
+ valuesByKey.set(keyValue, [object]);
+ }
+ }
+
+ valuesByKey.forEach(function(keyValue) {
+ o[keyValue] = map(valuesByKey.get(keyValue), depth);
+ });
+
+ return o;
+ }
+
+ function entries(map, depth) {
+ if (depth >= keys.length) return map;
+
+ var a = [],
+ sortKey = sortKeys[depth++],
+ key;
+
+ for (key in map) {
+ a.push({key: key, values: entries(map[key], depth)});
+ }
+
+ if (sortKey) a.sort(function(a, b) {
+ return sortKey(a.key, b.key);
+ });
+
+ return a;
+ }
+
+ nest.map = function(array) {
+ return map(array, 0);
+ };
+
+ nest.entries = function(array) {
+ return entries(map(array, 0), 0);
+ };
+
+ nest.key = function(d) {
+ keys.push(d);
+ return nest;
+ };
+
+ // Specifies the order for the most-recently specified key.
+ // Note: only applies to entries. Map keys are unordered!
+ nest.sortKeys = function(order) {
+ sortKeys[keys.length - 1] = order;
+ return nest;
+ };
+
+ // Specifies the order for leaf values.
+ // Applies to both maps and entries array.
+ nest.sortValues = function(order) {
+ sortValues = order;
+ return nest;
+ };
+
+ nest.rollup = function(f) {
+ rollup = f;
+ return nest;
+ };
+
+ return nest;
+};
+d3.keys = function(map) {
+ var keys = [];
+ for (var key in map) keys.push(key);
+ return keys;
+};
+d3.values = function(map) {
+ var values = [];
+ for (var key in map) values.push(map[key]);
+ return values;
+};
+d3.entries = function(map) {
+ var entries = [];
+ for (var key in map) entries.push({key: key, value: map[key]});
+ return entries;
+};
+d3.permute = function(array, indexes) {
+ var permutes = [],
+ i = -1,
+ n = indexes.length;
+ while (++i < n) permutes[i] = array[indexes[i]];
+ return permutes;
+};
+d3.merge = function(arrays) {
+ return Array.prototype.concat.apply([], arrays);
+};
+d3.split = function(array, f) {
+ var arrays = [],
+ values = [],
+ value,
+ i = -1,
+ n = array.length;
+ if (arguments.length < 2) f = d3_splitter;
+ while (++i < n) {
+ if (f.call(values, value = array[i], i)) {
+ values = [];
+ } else {
+ if (!values.length) arrays.push(values);
+ values.push(value);
+ }
+ }
+ return arrays;
+};
+
+function d3_splitter(d) {
+ return d == null;
+}
+function d3_collapse(s) {
+ return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " ");
+}
+d3.range = function(start, stop, step) {
+ if (arguments.length < 3) {
+ step = 1;
+ if (arguments.length < 2) {
+ stop = start;
+ start = 0;
+ }
+ }
+ if ((stop - start) / step === Infinity) throw new Error("infinite range");
+ var range = [],
+ k = d3_range_integerScale(Math.abs(step)),
+ i = -1,
+ j;
+ start *= k, stop *= k, step *= k;
+ if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k);
+ else while ((j = start + step * ++i) < stop) range.push(j / k);
+ return range;
+};
+
+function d3_range_integerScale(x) {
+ var k = 1;
+ while (x * k % 1) k *= 10;
+ return k;
+}
+d3.requote = function(s) {
+ return s.replace(d3_requote_re, "\\$&");
+};
+
+var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
+d3.round = function(x, n) {
+ return n
+ ? Math.round(x * (n = Math.pow(10, n))) / n
+ : Math.round(x);
+};
+d3.xhr = function(url, mime, callback) {
+ var req = new XMLHttpRequest;
+ if (arguments.length < 3) callback = mime, mime = null;
+ else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
+ req.open("GET", url, true);
+ if (mime) req.setRequestHeader("Accept", mime);
+ req.onreadystatechange = function() {
+ if (req.readyState === 4) callback(req.status < 300 ? req : null);
+ };
+ req.send(null);
+};
+d3.text = function(url, mime, callback) {
+ function ready(req) {
+ callback(req && req.responseText);
+ }
+ if (arguments.length < 3) {
+ callback = mime;
+ mime = null;
+ }
+ d3.xhr(url, mime, ready);
+};
+d3.json = function(url, callback) {
+ d3.text(url, "application/json", function(text) {
+ callback(text ? JSON.parse(text) : null);
+ });
+};
+d3.html = function(url, callback) {
+ d3.text(url, "text/html", function(text) {
+ if (text != null) { // Treat empty string as valid HTML.
+ var range = document.createRange();
+ range.selectNode(document.body);
+ text = range.createContextualFragment(text);
+ }
+ callback(text);
+ });
+};
+d3.xml = function(url, mime, callback) {
+ function ready(req) {
+ callback(req && req.responseXML);
+ }
+ if (arguments.length < 3) {
+ callback = mime;
+ mime = null;
+ }
+ d3.xhr(url, mime, ready);
+};
+var d3_nsPrefix = {
+ svg: "http://www.w3.org/2000/svg",
+ xhtml: "http://www.w3.org/1999/xhtml",
+ xlink: "http://www.w3.org/1999/xlink",
+ xml: "http://www.w3.org/XML/1998/namespace",
+ xmlns: "http://www.w3.org/2000/xmlns/"
+};
+
+d3.ns = {
+ prefix: d3_nsPrefix,
+ qualify: function(name) {
+ var i = name.indexOf(":"),
+ prefix = name;
+ if (i >= 0) {
+ prefix = name.substring(0, i);
+ name = name.substring(i + 1);
+ }
+ return d3_nsPrefix.hasOwnProperty(prefix)
+ ? {space: d3_nsPrefix[prefix], local: name}
+ : name;
+ }
+};
+d3.dispatch = function() {
+ var dispatch = new d3_dispatch,
+ i = -1,
+ n = arguments.length;
+ while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+ return dispatch;
+};
+
+function d3_dispatch() {}
+
+d3_dispatch.prototype.on = function(type, listener) {
+ var i = type.indexOf("."),
+ name = "";
+
+ // Extract optional namespace, e.g., "click.foo"
+ if (i > 0) {
+ name = type.substring(i + 1);
+ type = type.substring(0, i);
+ }
+
+ return arguments.length < 2
+ ? this[type].on(name)
+ : this[type].on(name, listener);
+};
+
+function d3_dispatch_event(dispatch) {
+ var listeners = [],
+ listenerByName = new d3_Map;
+
+ function event() {
+ var z = listeners, // defensive reference
+ i = -1,
+ n = z.length,
+ l;
+ while (++i < n) if (l = z[i].on) l.apply(this, arguments);
+ return dispatch;
+ }
+
+ event.on = function(name, listener) {
+ var l = listenerByName.get(name),
+ i;
+
+ // return the current listener, if any
+ if (arguments.length < 2) return l && l.on;
+
+ // remove the old listener, if any (with copy-on-write)
+ if (l) {
+ l.on = null;
+ listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
+ listenerByName.remove(name);
+ }
+
+ // add the new listener, if any
+ if (listener) listeners.push(listenerByName.set(name, {on: listener}));
+
+ return dispatch;
+ };
+
+ return event;
+}
+// TODO align
+d3.format = function(specifier) {
+ var match = d3_format_re.exec(specifier),
+ fill = match[1] || " ",
+ sign = match[3] || "",
+ zfill = match[5],
+ width = +match[6],
+ comma = match[7],
+ precision = match[8],
+ type = match[9],
+ scale = 1,
+ suffix = "",
+ integer = false;
+
+ if (precision) precision = +precision.substring(1);
+
+ if (zfill) {
+ fill = "0"; // TODO align = "=";
+ if (comma) width -= Math.floor((width - 1) / 4);
+ }
+
+ switch (type) {
+ case "n": comma = true; type = "g"; break;
+ case "%": scale = 100; suffix = "%"; type = "f"; break;
+ case "p": scale = 100; suffix = "%"; type = "r"; break;
+ case "d": integer = true; precision = 0; break;
+ case "s": scale = -1; type = "r"; break;
+ }
+
+ // If no precision is specified for r, fallback to general notation.
+ if (type == "r" && !precision) type = "g";
+
+ type = d3_format_types.get(type) || d3_format_typeDefault;
+
+ return function(value) {
+
+ // Return the empty string for floats formatted as ints.
+ if (integer && (value % 1)) return "";
+
+ // Convert negative to positive, and record the sign prefix.
+ var negative = (value < 0) && (value = -value) ? "\u2212" : sign;
+
+ // Apply the scale, computing it from the value's exponent for si format.
+ if (scale < 0) {
+ var prefix = d3.formatPrefix(value, precision);
+ value *= prefix.scale;
+ suffix = prefix.symbol;
+ } else {
+ value *= scale;
+ }
+
+ // Convert to the desired precision.
+ value = type(value, precision);
+
+ // If the fill character is 0, the sign and group is applied after the fill.
+ if (zfill) {
+ var length = value.length + negative.length;
+ if (length < width) value = new Array(width - length + 1).join(fill) + value;
+ if (comma) value = d3_format_group(value);
+ value = negative + value;
+ }
+
+ // Otherwise (e.g., space-filling), the sign and group is applied before.
+ else {
+ if (comma) value = d3_format_group(value);
+ value = negative + value;
+ var length = value.length;
+ if (length < width) value = new Array(width - length + 1).join(fill) + value;
+ }
+
+ return value + suffix;
+ };
+};
+
+// [[fill]align][sign][#][0][width][,][.precision][type]
+var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
+
+var d3_format_types = d3.map({
+ g: function(x, p) { return x.toPrecision(p); },
+ e: function(x, p) { return x.toExponential(p); },
+ f: function(x, p) { return x.toFixed(p); },
+ r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); }
+});
+
+function d3_format_precision(x, p) {
+ return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);
+}
+
+function d3_format_typeDefault(x) {
+ return x + "";
+}
+
+// Apply comma grouping for thousands.
+function d3_format_group(value) {
+ var i = value.lastIndexOf("."),
+ f = i >= 0 ? value.substring(i) : (i = value.length, ""),
+ t = [];
+ while (i > 0) t.push(value.substring(i -= 3, i + 3));
+ return t.reverse().join(",") + f;
+}
+var d3_formatPrefixes = ["y","z","a","f","p","n","μ","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix);
+
+d3.formatPrefix = function(value, precision) {
+ var i = 0;
+ if (value) {
+ if (value < 0) value *= -1;
+ if (precision) value = d3.round(value, d3_format_precision(value, precision));
+ i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
+ i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));
+ }
+ return d3_formatPrefixes[8 + i / 3];
+};
+
+function d3_formatPrefix(d, i) {
+ return {
+ scale: Math.pow(10, (8 - i) * 3),
+ symbol: d
+ };
+}
+
+/*
+ * TERMS OF USE - EASING EQUATIONS
+ *
+ * Open source under the BSD License.
+ *
+ * Copyright 2001 Robert Penner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the author nor the names of contributors may be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+var d3_ease_quad = d3_ease_poly(2),
+ d3_ease_cubic = d3_ease_poly(3),
+ d3_ease_default = function() { return d3_ease_identity; };
+
+var d3_ease = d3.map({
+ linear: d3_ease_default,
+ poly: d3_ease_poly,
+ quad: function() { return d3_ease_quad; },
+ cubic: function() { return d3_ease_cubic; },
+ sin: function() { return d3_ease_sin; },
+ exp: function() { return d3_ease_exp; },
+ circle: function() { return d3_ease_circle; },
+ elastic: d3_ease_elastic,
+ back: d3_ease_back,
+ bounce: function() { return d3_ease_bounce; }
+});
+
+var d3_ease_mode = d3.map({
+ "in": d3_ease_identity,
+ "out": d3_ease_reverse,
+ "in-out": d3_ease_reflect,
+ "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); }
+});
+
+d3.ease = function(name) {
+ var i = name.indexOf("-"),
+ t = i >= 0 ? name.substring(0, i) : name,
+ m = i >= 0 ? name.substring(i + 1) : "in";
+ t = d3_ease.get(t) || d3_ease_default;
+ m = d3_ease_mode.get(m) || d3_ease_identity;
+ return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));
+};
+
+function d3_ease_clamp(f) {
+ return function(t) {
+ return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
+ };
+}
+
+function d3_ease_reverse(f) {
+ return function(t) {
+ return 1 - f(1 - t);
+ };
+}
+
+function d3_ease_reflect(f) {
+ return function(t) {
+ return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t)));
+ };
+}
+
+function d3_ease_identity(t) {
+ return t;
+}
+
+function d3_ease_poly(e) {
+ return function(t) {
+ return Math.pow(t, e);
+ };
+}
+
+function d3_ease_sin(t) {
+ return 1 - Math.cos(t * Math.PI / 2);
+}
+
+function d3_ease_exp(t) {
+ return Math.pow(2, 10 * (t - 1));
+}
+
+function d3_ease_circle(t) {
+ return 1 - Math.sqrt(1 - t * t);
+}
+
+function d3_ease_elastic(a, p) {
+ var s;
+ if (arguments.length < 2) p = 0.45;
+ if (arguments.length < 1) { a = 1; s = p / 4; }
+ else s = p / (2 * Math.PI) * Math.asin(1 / a);
+ return function(t) {
+ return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p);
+ };
+}
+
+function d3_ease_back(s) {
+ if (!s) s = 1.70158;
+ return function(t) {
+ return t * t * ((s + 1) * t - s);
+ };
+}
+
+function d3_ease_bounce(t) {
+ return t < 1 / 2.75 ? 7.5625 * t * t
+ : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75
+ : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375
+ : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
+}
+d3.event = null;
+
+function d3_eventCancel() {
+ d3.event.stopPropagation();
+ d3.event.preventDefault();
+}
+
+function d3_eventSource() {
+ var e = d3.event, s;
+ while (s = e.sourceEvent) e = s;
+ return e;
+}
+
+// Like d3.dispatch, but for custom events abstracting native UI events. These
+// events have a target component (such as a brush), a target element (such as
+// the svg:g element containing the brush) and the standard arguments `d` (the
+// target element's data) and `i` (the selection index of the target element).
+function d3_eventDispatch(target) {
+ var dispatch = new d3_dispatch,
+ i = 0,
+ n = arguments.length;
+
+ while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+
+ // Creates a dispatch context for the specified `thiz` (typically, the target
+ // DOM element that received the source event) and `argumentz` (typically, the
+ // data `d` and index `i` of the target element). The returned function can be
+ // used to dispatch an event to any registered listeners; the function takes a
+ // single argument as input, being the event to dispatch. The event must have
+ // a "type" attribute which corresponds to a type registered in the
+ // constructor. This context will automatically populate the "sourceEvent" and
+ // "target" attributes of the event, as well as setting the `d3.event` global
+ // for the duration of the notification.
+ dispatch.of = function(thiz, argumentz) {
+ return function(e1) {
+ try {
+ var e0 =
+ e1.sourceEvent = d3.event;
+ e1.target = target;
+ d3.event = e1;
+ dispatch[e1.type].apply(thiz, argumentz);
+ } finally {
+ d3.event = e0;
+ }
+ };
+ };
+
+ return dispatch;
+}
+d3.interpolate = function(a, b) {
+ var i = d3.interpolators.length, f;
+ while (--i >= 0 && !(f = d3.interpolators[i](a, b)));
+ return f;
+};
+
+d3.interpolateNumber = function(a, b) {
+ b -= a;
+ return function(t) { return a + b * t; };
+};
+
+d3.interpolateRound = function(a, b) {
+ b -= a;
+ return function(t) { return Math.round(a + b * t); };
+};
+
+d3.interpolateString = function(a, b) {
+ var m, // current match
+ i, // current index
+ j, // current index (for coallescing)
+ s0 = 0, // start index of current string prefix
+ s1 = 0, // end index of current string prefix
+ s = [], // string constants and placeholders
+ q = [], // number interpolators
+ n, // q.length
+ o;
+
+ // Reset our regular expression!
+ d3_interpolate_number.lastIndex = 0;
+
+ // Find all numbers in b.
+ for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
+ if (m.index) s.push(b.substring(s0, s1 = m.index));
+ q.push({i: s.length, x: m[0]});
+ s.push(null);
+ s0 = d3_interpolate_number.lastIndex;
+ }
+ if (s0 < b.length) s.push(b.substring(s0));
+
+ // Find all numbers in a.
+ for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
+ o = q[i];
+ if (o.x == m[0]) { // The numbers match, so coallesce.
+ if (o.i) {
+ if (s[o.i + 1] == null) { // This match is followed by another number.
+ s[o.i - 1] += o.x;
+ s.splice(o.i, 1);
+ for (j = i + 1; j < n; ++j) q[j].i--;
+ } else { // This match is followed by a string, so coallesce twice.
+ s[o.i - 1] += o.x + s[o.i + 1];
+ s.splice(o.i, 2);
+ for (j = i + 1; j < n; ++j) q[j].i -= 2;
+ }
+ } else {
+ if (s[o.i + 1] == null) { // This match is followed by another number.
+ s[o.i] = o.x;
+ } else { // This match is followed by a string, so coallesce twice.
+ s[o.i] = o.x + s[o.i + 1];
+ s.splice(o.i + 1, 1);
+ for (j = i + 1; j < n; ++j) q[j].i--;
+ }
+ }
+ q.splice(i, 1);
+ n--;
+ i--;
+ } else {
+ o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
+ }
+ }
+
+ // Remove any numbers in b not found in a.
+ while (i < n) {
+ o = q.pop();
+ if (s[o.i + 1] == null) { // This match is followed by another number.
+ s[o.i] = o.x;
+ } else { // This match is followed by a string, so coallesce twice.
+ s[o.i] = o.x + s[o.i + 1];
+ s.splice(o.i + 1, 1);
+ }
+ n--;
+ }
+
+ // Special optimization for only a single match.
+ if (s.length === 1) {
+ return s[0] == null ? q[0].x : function() { return b; };
+ }
+
+ // Otherwise, interpolate each of the numbers and rejoin the string.
+ return function(t) {
+ for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
+ return s.join("");
+ };
+};
+
+d3.interpolateTransform = function(a, b) {
+ var s = [], // string constants and placeholders
+ q = [], // number interpolators
+ n,
+ A = d3.transform(a),
+ B = d3.transform(b),
+ ta = A.translate,
+ tb = B.translate,
+ ra = A.rotate,
+ rb = B.rotate,
+ wa = A.skew,
+ wb = B.skew,
+ ka = A.scale,
+ kb = B.scale;
+
+ if (ta[0] != tb[0] || ta[1] != tb[1]) {
+ s.push("translate(", null, ",", null, ")");
+ q.push({i: 1, x: d3.interpolateNumber(ta[0], tb[0])}, {i: 3, x: d3.interpolateNumber(ta[1], tb[1])});
+ } else if (tb[0] || tb[1]) {
+ s.push("translate(" + tb + ")");
+ } else {
+ s.push("");
+ }
+
+ if (ra != rb) {
+ q.push({i: s.push(s.pop() + "rotate(", null, ")") - 2, x: d3.interpolateNumber(ra, rb)});
+ } else if (rb) {
+ s.push(s.pop() + "rotate(" + rb + ")");
+ }
+
+ if (wa != wb) {
+ q.push({i: s.push(s.pop() + "skewX(", null, ")") - 2, x: d3.interpolateNumber(wa, wb)});
+ } else if (wb) {
+ s.push(s.pop() + "skewX(" + wb + ")");
+ }
+
+ if (ka[0] != kb[0] || ka[1] != kb[1]) {
+ n = s.push(s.pop() + "scale(", null, ",", null, ")");
+ q.push({i: n - 4, x: d3.interpolateNumber(ka[0], kb[0])}, {i: n - 2, x: d3.interpolateNumber(ka[1], kb[1])});
+ } else if (kb[0] != 1 || kb[1] != 1) {
+ s.push(s.pop() + "scale(" + kb + ")");
+ }
+
+ n = q.length;
+ return function(t) {
+ var i = -1, o;
+ while (++i < n) s[(o = q[i]).i] = o.x(t);
+ return s.join("");
+ };
+};
+
+d3.interpolateRgb = function(a, b) {
+ a = d3.rgb(a);
+ b = d3.rgb(b);
+ var ar = a.r,
+ ag = a.g,
+ ab = a.b,
+ br = b.r - ar,
+ bg = b.g - ag,
+ bb = b.b - ab;
+ return function(t) {
+ return "#"
+ + d3_rgb_hex(Math.round(ar + br * t))
+ + d3_rgb_hex(Math.round(ag + bg * t))
+ + d3_rgb_hex(Math.round(ab + bb * t));
+ };
+};
+
+// interpolates HSL space, but outputs RGB string (for compatibility)
+d3.interpolateHsl = function(a, b) {
+ a = d3.hsl(a);
+ b = d3.hsl(b);
+ var h0 = a.h,
+ s0 = a.s,
+ l0 = a.l,
+ h1 = b.h - h0,
+ s1 = b.s - s0,
+ l1 = b.l - l0;
+ return function(t) {
+ return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString();
+ };
+};
+
+d3.interpolateArray = function(a, b) {
+ var x = [],
+ c = [],
+ na = a.length,
+ nb = b.length,
+ n0 = Math.min(a.length, b.length),
+ i;
+ for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i]));
+ for (; i < na; ++i) c[i] = a[i];
+ for (; i < nb; ++i) c[i] = b[i];
+ return function(t) {
+ for (i = 0; i < n0; ++i) c[i] = x[i](t);
+ return c;
+ };
+};
+
+d3.interpolateObject = function(a, b) {
+ var i = {},
+ c = {},
+ k;
+ for (k in a) {
+ if (k in b) {
+ i[k] = d3_interpolateByName(k)(a[k], b[k]);
+ } else {
+ c[k] = a[k];
+ }
+ }
+ for (k in b) {
+ if (!(k in a)) {
+ c[k] = b[k];
+ }
+ }
+ return function(t) {
+ for (k in i) c[k] = i[k](t);
+ return c;
+ };
+}
+
+var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g;
+
+function d3_interpolateByName(n) {
+ return n == "transform"
+ ? d3.interpolateTransform
+ : d3.interpolate;
+}
+
+d3.interpolators = [
+ d3.interpolateObject,
+ function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); },
+ function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); },
+ function(a, b) { return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); },
+ function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); }
+];
+function d3_uninterpolateNumber(a, b) {
+ b = b - (a = +a) ? 1 / (b - a) : 0;
+ return function(x) { return (x - a) * b; };
+}
+
+function d3_uninterpolateClamp(a, b) {
+ b = b - (a = +a) ? 1 / (b - a) : 0;
+ return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); };
+}
+d3.rgb = function(r, g, b) {
+ return arguments.length === 1
+ ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b)
+ : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb))
+ : d3_rgb(~~r, ~~g, ~~b);
+};
+
+function d3_rgb(r, g, b) {
+ return new d3_Rgb(r, g, b);
+}
+
+function d3_Rgb(r, g, b) {
+ this.r = r;
+ this.g = g;
+ this.b = b;
+}
+
+d3_Rgb.prototype.brighter = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ var r = this.r,
+ g = this.g,
+ b = this.b,
+ i = 30;
+ if (!r && !g && !b) return d3_rgb(i, i, i);
+ if (r && r < i) r = i;
+ if (g && g < i) g = i;
+ if (b && b < i) b = i;
+ return d3_rgb(
+ Math.min(255, Math.floor(r / k)),
+ Math.min(255, Math.floor(g / k)),
+ Math.min(255, Math.floor(b / k)));
+};
+
+d3_Rgb.prototype.darker = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ return d3_rgb(
+ Math.floor(k * this.r),
+ Math.floor(k * this.g),
+ Math.floor(k * this.b));
+};
+
+d3_Rgb.prototype.hsl = function() {
+ return d3_rgb_hsl(this.r, this.g, this.b);
+};
+
+d3_Rgb.prototype.toString = function() {
+ return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
+};
+
+function d3_rgb_hex(v) {
+ return v < 0x10
+ ? "0" + Math.max(0, v).toString(16)
+ : Math.min(255, v).toString(16);
+}
+
+function d3_rgb_parse(format, rgb, hsl) {
+ var r = 0, // red channel; int in [0, 255]
+ g = 0, // green channel; int in [0, 255]
+ b = 0, // blue channel; int in [0, 255]
+ m1, // CSS color specification match
+ m2, // CSS color specification type (e.g., rgb)
+ name;
+
+ /* Handle hsl, rgb. */
+ m1 = /([a-z]+)\((.*)\)/i.exec(format);
+ if (m1) {
+ m2 = m1[2].split(",");
+ switch (m1[1]) {
+ case "hsl": {
+ return hsl(
+ parseFloat(m2[0]), // degrees
+ parseFloat(m2[1]) / 100, // percentage
+ parseFloat(m2[2]) / 100 // percentage
+ );
+ }
+ case "rgb": {
+ return rgb(
+ d3_rgb_parseNumber(m2[0]),
+ d3_rgb_parseNumber(m2[1]),
+ d3_rgb_parseNumber(m2[2])
+ );
+ }
+ }
+ }
+
+ /* Named colors. */
+ if (name = d3_rgb_names.get(format)) return rgb(name.r, name.g, name.b);
+
+ /* Hexadecimal colors: #rgb and #rrggbb. */
+ if (format != null && format.charAt(0) === "#") {
+ if (format.length === 4) {
+ r = format.charAt(1); r += r;
+ g = format.charAt(2); g += g;
+ b = format.charAt(3); b += b;
+ } else if (format.length === 7) {
+ r = format.substring(1, 3);
+ g = format.substring(3, 5);
+ b = format.substring(5, 7);
+ }
+ r = parseInt(r, 16);
+ g = parseInt(g, 16);
+ b = parseInt(b, 16);
+ }
+
+ return rgb(r, g, b);
+}
+
+function d3_rgb_hsl(r, g, b) {
+ var min = Math.min(r /= 255, g /= 255, b /= 255),
+ max = Math.max(r, g, b),
+ d = max - min,
+ h,
+ s,
+ l = (max + min) / 2;
+ if (d) {
+ s = l < .5 ? d / (max + min) : d / (2 - max - min);
+ if (r == max) h = (g - b) / d + (g < b ? 6 : 0);
+ else if (g == max) h = (b - r) / d + 2;
+ else h = (r - g) / d + 4;
+ h *= 60;
+ } else {
+ s = h = 0;
+ }
+ return d3_hsl(h, s, l);
+}
+
+function d3_rgb_parseNumber(c) { // either integer or percentage
+ var f = parseFloat(c);
+ return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
+}
+
+var d3_rgb_names = d3.map({
+ aliceblue: "#f0f8ff",
+ antiquewhite: "#faebd7",
+ aqua: "#00ffff",
+ aquamarine: "#7fffd4",
+ azure: "#f0ffff",
+ beige: "#f5f5dc",
+ bisque: "#ffe4c4",
+ black: "#000000",
+ blanchedalmond: "#ffebcd",
+ blue: "#0000ff",
+ blueviolet: "#8a2be2",
+ brown: "#a52a2a",
+ burlywood: "#deb887",
+ cadetblue: "#5f9ea0",
+ chartreuse: "#7fff00",
+ chocolate: "#d2691e",
+ coral: "#ff7f50",
+ cornflowerblue: "#6495ed",
+ cornsilk: "#fff8dc",
+ crimson: "#dc143c",
+ cyan: "#00ffff",
+ darkblue: "#00008b",
+ darkcyan: "#008b8b",
+ darkgoldenrod: "#b8860b",
+ darkgray: "#a9a9a9",
+ darkgreen: "#006400",
+ darkgrey: "#a9a9a9",
+ darkkhaki: "#bdb76b",
+ darkmagenta: "#8b008b",
+ darkolivegreen: "#556b2f",
+ darkorange: "#ff8c00",
+ darkorchid: "#9932cc",
+ darkred: "#8b0000",
+ darksalmon: "#e9967a",
+ darkseagreen: "#8fbc8f",
+ darkslateblue: "#483d8b",
+ darkslategray: "#2f4f4f",
+ darkslategrey: "#2f4f4f",
+ darkturquoise: "#00ced1",
+ darkviolet: "#9400d3",
+ deeppink: "#ff1493",
+ deepskyblue: "#00bfff",
+ dimgray: "#696969",
+ dimgrey: "#696969",
+ dodgerblue: "#1e90ff",
+ firebrick: "#b22222",
+ floralwhite: "#fffaf0",
+ forestgreen: "#228b22",
+ fuchsia: "#ff00ff",
+ gainsboro: "#dcdcdc",
+ ghostwhite: "#f8f8ff",
+ gold: "#ffd700",
+ goldenrod: "#daa520",
+ gray: "#808080",
+ green: "#008000",
+ greenyellow: "#adff2f",
+ grey: "#808080",
+ honeydew: "#f0fff0",
+ hotpink: "#ff69b4",
+ indianred: "#cd5c5c",
+ indigo: "#4b0082",
+ ivory: "#fffff0",
+ khaki: "#f0e68c",
+ lavender: "#e6e6fa",
+ lavenderblush: "#fff0f5",
+ lawngreen: "#7cfc00",
+ lemonchiffon: "#fffacd",
+ lightblue: "#add8e6",
+ lightcoral: "#f08080",
+ lightcyan: "#e0ffff",
+ lightgoldenrodyellow: "#fafad2",
+ lightgray: "#d3d3d3",
+ lightgreen: "#90ee90",
+ lightgrey: "#d3d3d3",
+ lightpink: "#ffb6c1",
+ lightsalmon: "#ffa07a",
+ lightseagreen: "#20b2aa",
+ lightskyblue: "#87cefa",
+ lightslategray: "#778899",
+ lightslategrey: "#778899",
+ lightsteelblue: "#b0c4de",
+ lightyellow: "#ffffe0",
+ lime: "#00ff00",
+ limegreen: "#32cd32",
+ linen: "#faf0e6",
+ magenta: "#ff00ff",
+ maroon: "#800000",
+ mediumaquamarine: "#66cdaa",
+ mediumblue: "#0000cd",
+ mediumorchid: "#ba55d3",
+ mediumpurple: "#9370db",
+ mediumseagreen: "#3cb371",
+ mediumslateblue: "#7b68ee",
+ mediumspringgreen: "#00fa9a",
+ mediumturquoise: "#48d1cc",
+ mediumvioletred: "#c71585",
+ midnightblue: "#191970",
+ mintcream: "#f5fffa",
+ mistyrose: "#ffe4e1",
+ moccasin: "#ffe4b5",
+ navajowhite: "#ffdead",
+ navy: "#000080",
+ oldlace: "#fdf5e6",
+ olive: "#808000",
+ olivedrab: "#6b8e23",
+ orange: "#ffa500",
+ orangered: "#ff4500",
+ orchid: "#da70d6",
+ palegoldenrod: "#eee8aa",
+ palegreen: "#98fb98",
+ paleturquoise: "#afeeee",
+ palevioletred: "#db7093",
+ papayawhip: "#ffefd5",
+ peachpuff: "#ffdab9",
+ peru: "#cd853f",
+ pink: "#ffc0cb",
+ plum: "#dda0dd",
+ powderblue: "#b0e0e6",
+ purple: "#800080",
+ red: "#ff0000",
+ rosybrown: "#bc8f8f",
+ royalblue: "#4169e1",
+ saddlebrown: "#8b4513",
+ salmon: "#fa8072",
+ sandybrown: "#f4a460",
+ seagreen: "#2e8b57",
+ seashell: "#fff5ee",
+ sienna: "#a0522d",
+ silver: "#c0c0c0",
+ skyblue: "#87ceeb",
+ slateblue: "#6a5acd",
+ slategray: "#708090",
+ slategrey: "#708090",
+ snow: "#fffafa",
+ springgreen: "#00ff7f",
+ steelblue: "#4682b4",
+ tan: "#d2b48c",
+ teal: "#008080",
+ thistle: "#d8bfd8",
+ tomato: "#ff6347",
+ turquoise: "#40e0d0",
+ violet: "#ee82ee",
+ wheat: "#f5deb3",
+ white: "#ffffff",
+ whitesmoke: "#f5f5f5",
+ yellow: "#ffff00",
+ yellowgreen: "#9acd32"
+});
+
+d3_rgb_names.forEach(function(key, value) {
+ d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb));
+});
+d3.hsl = function(h, s, l) {
+ return arguments.length === 1
+ ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l)
+ : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl))
+ : d3_hsl(+h, +s, +l);
+};
+
+function d3_hsl(h, s, l) {
+ return new d3_Hsl(h, s, l);
+}
+
+function d3_Hsl(h, s, l) {
+ this.h = h;
+ this.s = s;
+ this.l = l;
+}
+
+d3_Hsl.prototype.brighter = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ return d3_hsl(this.h, this.s, this.l / k);
+};
+
+d3_Hsl.prototype.darker = function(k) {
+ k = Math.pow(0.7, arguments.length ? k : 1);
+ return d3_hsl(this.h, this.s, k * this.l);
+};
+
+d3_Hsl.prototype.rgb = function() {
+ return d3_hsl_rgb(this.h, this.s, this.l);
+};
+
+d3_Hsl.prototype.toString = function() {
+ return this.rgb().toString();
+};
+
+function d3_hsl_rgb(h, s, l) {
+ var m1,
+ m2;
+
+ /* Some simple corrections for h, s and l. */
+ h = h % 360; if (h < 0) h += 360;
+ s = s < 0 ? 0 : s > 1 ? 1 : s;
+ l = l < 0 ? 0 : l > 1 ? 1 : l;
+
+ /* From FvD 13.37, CSS Color Module Level 3 */
+ m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
+ m1 = 2 * l - m2;
+
+ function v(h) {
+ if (h > 360) h -= 360;
+ else if (h < 0) h += 360;
+ if (h < 60) return m1 + (m2 - m1) * h / 60;
+ if (h < 180) return m2;
+ if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
+ return m1;
+ }
+
+ function vv(h) {
+ return Math.round(v(h) * 255);
+ }
+
+ return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
+}
+function d3_selection(groups) {
+ d3_arraySubclass(groups, d3_selectionPrototype);
+ return groups;
+}
+
+var d3_select = function(s, n) { return n.querySelector(s); },
+ d3_selectAll = function(s, n) { return n.querySelectorAll(s); },
+ d3_selectRoot = document.documentElement,
+ d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector,
+ d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); };
+
+// Prefer Sizzle, if available.
+if (typeof Sizzle === "function") {
+ d3_select = function(s, n) { return Sizzle(s, n)[0]; };
+ d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); };
+ d3_selectMatches = Sizzle.matchesSelector;
+}
+
+var d3_selectionPrototype = [];
+
+d3.selection = function() {
+ return d3_selectionRoot;
+};
+
+d3.selection.prototype = d3_selectionPrototype;
+d3_selectionPrototype.select = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ group,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selector(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = (group = this[j]).parentNode;
+ for (var i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subgroup.push(subnode = selector.call(node, node.__data__, i));
+ if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+
+function d3_selection_selector(selector) {
+ return function() {
+ return d3_select(selector, this);
+ };
+}
+d3_selectionPrototype.selectAll = function(selector) {
+ var subgroups = [],
+ subgroup,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));
+ subgroup.parentNode = node;
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+
+function d3_selection_selectorAll(selector) {
+ return function() {
+ return d3_selectAll(selector, this);
+ };
+}
+d3_selectionPrototype.attr = function(name, value) {
+ name = d3.ns.qualify(name);
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ var node = this.node();
+ return name.local
+ ? node.getAttributeNS(name.space, name.local)
+ : node.getAttribute(name);
+ }
+
+ function attrNull() {
+ this.removeAttribute(name);
+ }
+
+ function attrNullNS() {
+ this.removeAttributeNS(name.space, name.local);
+ }
+
+ function attrConstant() {
+ this.setAttribute(name, value);
+ }
+
+ function attrConstantNS() {
+ this.setAttributeNS(name.space, name.local, value);
+ }
+
+ function attrFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.removeAttribute(name);
+ else this.setAttribute(name, x);
+ }
+
+ function attrFunctionNS() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.removeAttributeNS(name.space, name.local);
+ else this.setAttributeNS(name.space, name.local, x);
+ }
+
+ return this.each(value == null
+ ? (name.local ? attrNullNS : attrNull) : (typeof value === "function"
+ ? (name.local ? attrFunctionNS : attrFunction)
+ : (name.local ? attrConstantNS : attrConstant)));
+};
+d3_selectionPrototype.classed = function(name, value) {
+ var names = name.split(d3_selection_classedWhitespace),
+ n = names.length,
+ i = -1;
+ if (arguments.length > 1) {
+ while (++i < n) d3_selection_classed.call(this, names[i], value);
+ return this;
+ } else {
+ while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false;
+ return true;
+ }
+};
+
+var d3_selection_classedWhitespace = /\s+/g;
+
+function d3_selection_classed(name, value) {
+ var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g");
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ var node = this.node();
+ if (c = node.classList) return c.contains(name);
+ var c = node.className;
+ re.lastIndex = 0;
+ return re.test(c.baseVal != null ? c.baseVal : c);
+ }
+
+ function classedAdd() {
+ if (c = this.classList) return c.add(name);
+ var c = this.className,
+ cb = c.baseVal != null,
+ cv = cb ? c.baseVal : c;
+ re.lastIndex = 0;
+ if (!re.test(cv)) {
+ cv = d3_collapse(cv + " " + name);
+ if (cb) c.baseVal = cv;
+ else this.className = cv;
+ }
+ }
+
+ function classedRemove() {
+ if (c = this.classList) return c.remove(name);
+ var c = this.className,
+ cb = c.baseVal != null,
+ cv = cb ? c.baseVal : c;
+ cv = d3_collapse(cv.replace(re, " "));
+ if (cb) c.baseVal = cv;
+ else this.className = cv;
+ }
+
+ function classedFunction() {
+ (value.apply(this, arguments)
+ ? classedAdd
+ : classedRemove).call(this);
+ }
+
+ return this.each(typeof value === "function"
+ ? classedFunction : value
+ ? classedAdd
+ : classedRemove);
+}
+d3_selectionPrototype.style = function(name, value, priority) {
+ if (arguments.length < 3) priority = "";
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) return window
+ .getComputedStyle(this.node(), null)
+ .getPropertyValue(name);
+
+ function styleNull() {
+ this.style.removeProperty(name);
+ }
+
+ function styleConstant() {
+ this.style.setProperty(name, value, priority);
+ }
+
+ function styleFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.style.removeProperty(name);
+ else this.style.setProperty(name, x, priority);
+ }
+
+ return this.each(value == null
+ ? styleNull : (typeof value === "function"
+ ? styleFunction : styleConstant));
+};
+d3_selectionPrototype.property = function(name, value) {
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) return this.node()[name];
+
+ function propertyNull() {
+ delete this[name];
+ }
+
+ function propertyConstant() {
+ this[name] = value;
+ }
+
+ function propertyFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) delete this[name];
+ else this[name] = x;
+ }
+
+ return this.each(value == null
+ ? propertyNull : (typeof value === "function"
+ ? propertyFunction : propertyConstant));
+};
+d3_selectionPrototype.text = function(value) {
+ return arguments.length < 1
+ ? this.node().textContent : this.each(typeof value === "function"
+ ? function() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null
+ ? function() { this.textContent = ""; }
+ : function() { this.textContent = value; });
+};
+d3_selectionPrototype.html = function(value) {
+ return arguments.length < 1
+ ? this.node().innerHTML : this.each(typeof value === "function"
+ ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null
+ ? function() { this.innerHTML = ""; }
+ : function() { this.innerHTML = value; });
+};
+// TODO append(node)?
+// TODO append(function)?
+d3_selectionPrototype.append = function(name) {
+ name = d3.ns.qualify(name);
+
+ function append() {
+ return this.appendChild(document.createElementNS(this.namespaceURI, name));
+ }
+
+ function appendNS() {
+ return this.appendChild(document.createElementNS(name.space, name.local));
+ }
+
+ return this.select(name.local ? appendNS : append);
+};
+// TODO insert(node, function)?
+// TODO insert(function, string)?
+// TODO insert(function, function)?
+d3_selectionPrototype.insert = function(name, before) {
+ name = d3.ns.qualify(name);
+
+ function insert() {
+ return this.insertBefore(
+ document.createElementNS(this.namespaceURI, name),
+ d3_select(before, this));
+ }
+
+ function insertNS() {
+ return this.insertBefore(
+ document.createElementNS(name.space, name.local),
+ d3_select(before, this));
+ }
+
+ return this.select(name.local ? insertNS : insert);
+};
+// TODO remove(selector)?
+// TODO remove(node)?
+// TODO remove(function)?
+d3_selectionPrototype.remove = function() {
+ return this.each(function() {
+ var parent = this.parentNode;
+ if (parent) parent.removeChild(this);
+ });
+};
+d3_selectionPrototype.data = function(value, key) {
+ var i = -1,
+ n = this.length,
+ group,
+ node;
+
+ // If no value is specified, return the first value.
+ if (!arguments.length) {
+ value = new Array(n = (group = this[0]).length);
+ while (++i < n) {
+ if (node = group[i]) {
+ value[i] = node.__data__;
+ }
+ }
+ return value;
+ }
+
+ function bind(group, groupData) {
+ var i,
+ n = group.length,
+ m = groupData.length,
+ n0 = Math.min(n, m),
+ n1 = Math.max(n, m),
+ updateNodes = [],
+ enterNodes = [],
+ exitNodes = [],
+ node,
+ nodeData;
+
+ if (key) {
+ var nodeByKeyValue = new d3_Map,
+ keyValues = [],
+ keyValue,
+ j = groupData.length;
+
+ for (i = -1; ++i < n;) {
+ keyValue = key.call(node = group[i], node.__data__, i);
+ if (nodeByKeyValue.has(keyValue)) {
+ exitNodes[j++] = node; // duplicate key
+ } else {
+ nodeByKeyValue.set(keyValue, node);
+ }
+ keyValues.push(keyValue);
+ }
+
+ for (i = -1; ++i < m;) {
+ keyValue = key.call(groupData, nodeData = groupData[i], i)
+ if (nodeByKeyValue.has(keyValue)) {
+ updateNodes[i] = node = nodeByKeyValue.get(keyValue);
+ node.__data__ = nodeData;
+ enterNodes[i] = exitNodes[i] = null;
+ } else {
+ enterNodes[i] = d3_selection_dataNode(nodeData);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ nodeByKeyValue.remove(keyValue);
+ }
+
+ for (i = -1; ++i < n;) {
+ if (nodeByKeyValue.has(keyValues[i])) {
+ exitNodes[i] = group[i];
+ }
+ }
+ } else {
+ for (i = -1; ++i < n0;) {
+ node = group[i];
+ nodeData = groupData[i];
+ if (node) {
+ node.__data__ = nodeData;
+ updateNodes[i] = node;
+ enterNodes[i] = exitNodes[i] = null;
+ } else {
+ enterNodes[i] = d3_selection_dataNode(nodeData);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ }
+ for (; i < m; ++i) {
+ enterNodes[i] = d3_selection_dataNode(groupData[i]);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ for (; i < n1; ++i) {
+ exitNodes[i] = group[i];
+ enterNodes[i] = updateNodes[i] = null;
+ }
+ }
+
+ enterNodes.update
+ = updateNodes;
+
+ enterNodes.parentNode
+ = updateNodes.parentNode
+ = exitNodes.parentNode
+ = group.parentNode;
+
+ enter.push(enterNodes);
+ update.push(updateNodes);
+ exit.push(exitNodes);
+ }
+
+ var enter = d3_selection_enter([]),
+ update = d3_selection([]),
+ exit = d3_selection([]);
+
+ if (typeof value === "function") {
+ while (++i < n) {
+ bind(group = this[i], value.call(group, group.parentNode.__data__, i));
+ }
+ } else {
+ while (++i < n) {
+ bind(group = this[i], value);
+ }
+ }
+
+ update.enter = function() { return enter; };
+ update.exit = function() { return exit; };
+ return update;
+};
+
+function d3_selection_dataNode(data) {
+ return {__data__: data};
+}
+d3_selectionPrototype.datum =
+d3_selectionPrototype.map = function(value) {
+ return arguments.length < 1
+ ? this.property("__data__")
+ : this.property("__data__", value);
+};
+d3_selectionPrototype.filter = function(filter) {
+ var subgroups = [],
+ subgroup,
+ group,
+ node;
+
+ if (typeof filter !== "function") filter = d3_selection_filter(filter);
+
+ for (var j = 0, m = this.length; j < m; j++) {
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = (group = this[j]).parentNode;
+ for (var i = 0, n = group.length; i < n; i++) {
+ if ((node = group[i]) && filter.call(node, node.__data__, i)) {
+ subgroup.push(node);
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+
+function d3_selection_filter(selector) {
+ return function() {
+ return d3_selectMatches(this, selector);
+ };
+}
+d3_selectionPrototype.order = function() {
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
+ if (node = group[i]) {
+ if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
+ next = node;
+ }
+ }
+ }
+ return this;
+};
+d3_selectionPrototype.sort = function(comparator) {
+ comparator = d3_selection_sortComparator.apply(this, arguments);
+ for (var j = -1, m = this.length; ++j < m;) this[j].sort(comparator);
+ return this.order();
+};
+
+function d3_selection_sortComparator(comparator) {
+ if (!arguments.length) comparator = d3.ascending;
+ return function(a, b) {
+ return comparator(a && a.__data__, b && b.__data__);
+ };
+}
+// type can be namespaced, e.g., "click.foo"
+// listener can be null for removal
+d3_selectionPrototype.on = function(type, listener, capture) {
+ if (arguments.length < 3) capture = false;
+
+ // parse the type specifier
+ var name = "__on" + type, i = type.indexOf(".");
+ if (i > 0) type = type.substring(0, i);
+
+ // if called with only one argument, return the current listener
+ if (arguments.length < 2) return (i = this.node()[name]) && i._;
+
+ // remove the old event listener, and add the new event listener
+ return this.each(function(d, i) {
+ var node = this,
+ o = node[name];
+
+ // remove the old listener, if any (using the previously-set capture)
+ if (o) {
+ node.removeEventListener(type, o, o.$);
+ delete node[name];
+ }
+
+ // add the new listener, if any (remembering the capture flag)
+ if (listener) {
+ node.addEventListener(type, node[name] = l, l.$ = capture);
+ l._ = listener; // stash the unwrapped listener for get
+ }
+
+ // wrapped event listener that preserves i
+ function l(e) {
+ var o = d3.event; // Events can be reentrant (e.g., focus).
+ d3.event = e;
+ try {
+ listener.call(node, node.__data__, i);
+ } finally {
+ d3.event = o;
+ }
+ }
+ });
+};
+d3_selectionPrototype.each = function(callback) {
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ var node = group[i];
+ if (node) callback.call(node, node.__data__, i, j);
+ }
+ }
+ return this;
+};
+//
+// Note: assigning to the arguments array simultaneously changes the value of
+// the corresponding argument!
+//
+// TODO The `this` argument probably shouldn't be the first argument to the
+// callback, anyway, since it's redundant. However, that will require a major
+// version bump due to backwards compatibility, so I'm not changing it right
+// away.
+//
+d3_selectionPrototype.call = function(callback) {
+ callback.apply(this, (arguments[0] = this, arguments));
+ return this;
+};
+d3_selectionPrototype.empty = function() {
+ return !this.node();
+};
+d3_selectionPrototype.node = function(callback) {
+ for (var j = 0, m = this.length; j < m; j++) {
+ for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+ var node = group[i];
+ if (node) return node;
+ }
+ }
+ return null;
+};
+d3_selectionPrototype.transition = function() {
+ var subgroups = [],
+ subgroup,
+ node;
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ subgroups.push(subgroup = []);
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ subgroup.push((node = group[i]) ? {node: node, delay: d3_transitionDelay, duration: d3_transitionDuration} : null);
+ }
+ }
+
+ return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now());
+};
+var d3_selectionRoot = d3_selection([[document]]);
+
+d3_selectionRoot[0].parentNode = d3_selectRoot;
+
+// TODO fast singleton implementation!
+// TODO select(function)
+d3.select = function(selector) {
+ return typeof selector === "string"
+ ? d3_selectionRoot.select(selector)
+ : d3_selection([[selector]]); // assume node
+};
+
+// TODO selectAll(function)
+d3.selectAll = function(selector) {
+ return typeof selector === "string"
+ ? d3_selectionRoot.selectAll(selector)
+ : d3_selection([d3_array(selector)]); // assume node[]
+};
+function d3_selection_enter(selection) {
+ d3_arraySubclass(selection, d3_selection_enterPrototype);
+ return selection;
+}
+
+var d3_selection_enterPrototype = [];
+
+d3.selection.enter = d3_selection_enter;
+d3.selection.enter.prototype = d3_selection_enterPrototype;
+
+d3_selection_enterPrototype.append = d3_selectionPrototype.append;
+d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
+d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
+d3_selection_enterPrototype.node = d3_selectionPrototype.node;
+d3_selection_enterPrototype.select = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ upgroup,
+ group,
+ node;
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ upgroup = (group = this[j]).update;
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = group.parentNode;
+ for (var i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
+ subnode.__data__ = node.__data__;
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+
+ return d3_selection(subgroups);
+};
+function d3_transition(groups, id, time) {
+ d3_arraySubclass(groups, d3_transitionPrototype);
+
+ var tweens = new d3_Map,
+ event = d3.dispatch("start", "end"),
+ ease = d3_transitionEase;
+
+ groups.id = id;
+
+ groups.time = time;
+
+ groups.tween = function(name, tween) {
+ if (arguments.length < 2) return tweens.get(name);
+ if (tween == null) tweens.remove(name);
+ else tweens.set(name, tween);
+ return groups;
+ };
+
+ groups.ease = function(value) {
+ if (!arguments.length) return ease;
+ ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
+ return groups;
+ };
+
+ groups.each = function(type, listener) {
+ if (arguments.length < 2) return d3_transition_each.call(groups, type);
+ event.on(type, listener);
+ return groups;
+ };
+
+ d3.timer(function(elapsed) {
+ groups.each(function(d, i, j) {
+ var tweened = [],
+ node = this,
+ delay = groups[j][i].delay,
+ duration = groups[j][i].duration,
+ lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0});
+
+ ++lock.count;
+
+ delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time);
+
+ function start(elapsed) {
+ if (lock.active > id) return stop();
+ lock.active = id;
+
+ tweens.forEach(function(key, value) {
+ if (tween = value.call(node, d, i)) {
+ tweened.push(tween);
+ }
+ });
+
+ event.start.call(node, d, i);
+ if (!tick(elapsed)) d3.timer(tick, 0, time);
+ return 1;
+ }
+
+ function tick(elapsed) {
+ if (lock.active !== id) return stop();
+
+ var t = (elapsed - delay) / duration,
+ e = ease(t),
+ n = tweened.length;
+
+ while (n > 0) {
+ tweened[--n].call(node, e);
+ }
+
+ if (t >= 1) {
+ stop();
+ d3_transitionId = id;
+ event.end.call(node, d, i);
+ d3_transitionId = 0;
+ return 1;
+ }
+ }
+
+ function stop() {
+ if (!--lock.count) delete node.__transition__;
+ return 1;
+ }
+ });
+ return 1;
+ }, 0, time);
+
+ return groups;
+}
+
+var d3_transitionRemove = {};
+
+function d3_transitionNull(d, i, a) {
+ return a != "" && d3_transitionRemove;
+}
+
+function d3_transitionTween(name, b) {
+ var interpolate = d3_interpolateByName(name);
+
+ function transitionFunction(d, i, a) {
+ var v = b.call(this, d, i);
+ return v == null
+ ? a != "" && d3_transitionRemove
+ : a != v && interpolate(a, v);
+ }
+
+ function transitionString(d, i, a) {
+ return a != b && interpolate(a, b);
+ }
+
+ return typeof b === "function" ? transitionFunction
+ : b == null ? d3_transitionNull
+ : (b += "", transitionString);
+}
+
+var d3_transitionPrototype = [],
+ d3_transitionNextId = 0,
+ d3_transitionId = 0,
+ d3_transitionDefaultDelay = 0,
+ d3_transitionDefaultDuration = 250,
+ d3_transitionDefaultEase = d3.ease("cubic-in-out"),
+ d3_transitionDelay = d3_transitionDefaultDelay,
+ d3_transitionDuration = d3_transitionDefaultDuration,
+ d3_transitionEase = d3_transitionDefaultEase;
+
+d3_transitionPrototype.call = d3_selectionPrototype.call;
+
+d3.transition = function(selection) {
+ return arguments.length
+ ? (d3_transitionId ? selection.transition() : selection)
+ : d3_selectionRoot.transition();
+};
+
+d3.transition.prototype = d3_transitionPrototype;
+d3_transitionPrototype.select = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selector(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ subgroups.push(subgroup = []);
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {
+ if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
+ subgroup.push({node: subnode, delay: node.delay, duration: node.duration});
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+
+ return d3_transition(subgroups, this.id, this.time).ease(this.ease());
+};
+d3_transitionPrototype.selectAll = function(selector) {
+ var subgroups = [],
+ subgroup,
+ subnodes,
+ node;
+
+ if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
+
+ for (var j = -1, m = this.length; ++j < m;) {
+ for (var group = this[j], i = -1, n = group.length; ++i < n;) {
+ if (node = group[i]) {
+ subnodes = selector.call(node.node, node.node.__data__, i);
+ subgroups.push(subgroup = []);
+ for (var k = -1, o = subnodes.length; ++k < o;) {
+ subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration});
+ }
+ }
+ }
+ }
+
+ return d3_transition(subgroups, this.id, this.time).ease(this.ease());
+};
+d3_transitionPrototype.attr = function(name, value) {
+ return this.attrTween(name, d3_transitionTween(name, value));
+};
+
+d3_transitionPrototype.attrTween = function(nameNS, tween) {
+ var name = d3.ns.qualify(nameNS);
+
+ function attrTween(d, i) {
+ var f = tween.call(this, d, i, this.getAttribute(name));
+ return f === d3_transitionRemove
+ ? (this.removeAttribute(name), null)
+ : f && function(t) { this.setAttribute(name, f(t)); };
+ }
+
+ function attrTweenNS(d, i) {
+ var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
+ return f === d3_transitionRemove
+ ? (this.removeAttributeNS(name.space, name.local), null)
+ : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); };
+ }
+
+ return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
+};
+d3_transitionPrototype.style = function(name, value, priority) {
+ if (arguments.length < 3) priority = "";
+ return this.styleTween(name, d3_transitionTween(name, value), priority);
+};
+
+d3_transitionPrototype.styleTween = function(name, tween, priority) {
+ if (arguments.length < 3) priority = "";
+ return this.tween("style." + name, function(d, i) {
+ var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
+ return f === d3_transitionRemove
+ ? (this.style.removeProperty(name), null)
+ : f && function(t) { this.style.setProperty(name, f(t), priority); };
+ });
+};
+d3_transitionPrototype.text = function(value) {
+ return this.tween("text", function(d, i) {
+ this.textContent = typeof value === "function"
+ ? value.call(this, d, i)
+ : value;
+ });
+};
+d3_transitionPrototype.remove = function() {
+ return this.each("end.transition", function() {
+ var p;
+ if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
+ });
+};
+d3_transitionPrototype.delay = function(value) {
+ var groups = this;
+ return groups.each(typeof value === "function"
+ ? function(d, i, j) { groups[j][i].delay = value.apply(this, arguments) | 0; }
+ : (value = value | 0, function(d, i, j) { groups[j][i].delay = value; }));
+};
+d3_transitionPrototype.duration = function(value) {
+ var groups = this;
+ return groups.each(typeof value === "function"
+ ? function(d, i, j) { groups[j][i].duration = Math.max(1, value.apply(this, arguments) | 0); }
+ : (value = Math.max(1, value | 0), function(d, i, j) { groups[j][i].duration = value; }));
+};
+function d3_transition_each(callback) {
+ var id = d3_transitionId,
+ ease = d3_transitionEase,
+ delay = d3_transitionDelay,
+ duration = d3_transitionDuration;
+
+ d3_transitionId = this.id;
+ d3_transitionEase = this.ease();
+ for (var j = 0, m = this.length; j < m; j++) {
+ for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+ var node = group[i];
+ if (node) {
+ d3_transitionDelay = this[j][i].delay;
+ d3_transitionDuration = this[j][i].duration;
+ callback.call(node = node.node, node.__data__, i, j);
+ }
+ }
+ }
+
+ d3_transitionId = id;
+ d3_transitionEase = ease;
+ d3_transitionDelay = delay;
+ d3_transitionDuration = duration;
+ return this;
+}
+d3_transitionPrototype.transition = function() {
+ return this.select(d3_this);
+};
+var d3_timer_queue = null,
+ d3_timer_interval, // is an interval (or frame) active?
+ d3_timer_timeout; // is a timeout active?
+
+// The timer will continue to fire until callback returns true.
+d3.timer = function(callback, delay, then) {
+ var found = false,
+ t0,
+ t1 = d3_timer_queue;
+
+ if (arguments.length < 3) {
+ if (arguments.length < 2) delay = 0;
+ else if (!isFinite(delay)) return;
+ then = Date.now();
+ }
+
+ // See if the callback's already in the queue.
+ while (t1) {
+ if (t1.callback === callback) {
+ t1.then = then;
+ t1.delay = delay;
+ found = true;
+ break;
+ }
+ t0 = t1;
+ t1 = t1.next;
+ }
+
+ // Otherwise, add the callback to the queue.
+ if (!found) d3_timer_queue = {
+ callback: callback,
+ then: then,
+ delay: delay,
+ next: d3_timer_queue
+ };
+
+ // Start animatin'!
+ if (!d3_timer_interval) {
+ d3_timer_timeout = clearTimeout(d3_timer_timeout);
+ d3_timer_interval = 1;
+ d3_timer_frame(d3_timer_step);
+ }
+}
+
+function d3_timer_step() {
+ var elapsed,
+ now = Date.now(),
+ t1 = d3_timer_queue;
+
+ while (t1) {
+ elapsed = now - t1.then;
+ if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
+ t1 = t1.next;
+ }
+
+ var delay = d3_timer_flush() - now;
+ if (delay > 24) {
+ if (isFinite(delay)) {
+ clearTimeout(d3_timer_timeout);
+ d3_timer_timeout = setTimeout(d3_timer_step, delay);
+ }
+ d3_timer_interval = 0;
+ } else {
+ d3_timer_interval = 1;
+ d3_timer_frame(d3_timer_step);
+ }
+}
+
+d3.timer.flush = function() {
+ var elapsed,
+ now = Date.now(),
+ t1 = d3_timer_queue;
+
+ while (t1) {
+ elapsed = now - t1.then;
+ if (!t1.delay) t1.flush = t1.callback(elapsed);
+ t1 = t1.next;
+ }
+
+ d3_timer_flush();
+};
+
+// Flush after callbacks, to avoid concurrent queue modification.
+function d3_timer_flush() {
+ var t0 = null,
+ t1 = d3_timer_queue,
+ then = Infinity;
+ while (t1) {
+ if (t1.flush) {
+ t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
+ } else {
+ then = Math.min(then, t1.then + t1.delay);
+ t1 = (t0 = t1).next;
+ }
+ }
+ return then;
+}
+
+var d3_timer_frame = window.requestAnimationFrame
+ || window.webkitRequestAnimationFrame
+ || window.mozRequestAnimationFrame
+ || window.oRequestAnimationFrame
+ || window.msRequestAnimationFrame
+ || function(callback) { setTimeout(callback, 17); };
+d3.transform = function(string) {
+ var g = document.createElementNS(d3.ns.prefix.svg, "g"),
+ identity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0};
+ return (d3.transform = function(string) {
+ g.setAttribute("transform", string);
+ var t = g.transform.baseVal.consolidate();
+ return new d3_transform(t ? t.matrix : identity);
+ })(string);
+};
+
+// Compute x-scale and normalize the first row.
+// Compute shear and make second row orthogonal to first.
+// Compute y-scale and normalize the second row.
+// Finally, compute the rotation.
+function d3_transform(m) {
+ var r0 = [m.a, m.b],
+ r1 = [m.c, m.d],
+ kx = d3_transformNormalize(r0),
+ kz = d3_transformDot(r0, r1),
+ ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
+ if (r0[0] * r1[1] < r1[0] * r0[1]) {
+ r0[0] *= -1;
+ r0[1] *= -1;
+ kx *= -1;
+ kz *= -1;
+ }
+ this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees;
+ this.translate = [m.e, m.f];
+ this.scale = [kx, ky];
+ this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;
+};
+
+d3_transform.prototype.toString = function() {
+ return "translate(" + this.translate
+ + ")rotate(" + this.rotate
+ + ")skewX(" + this.skew
+ + ")scale(" + this.scale
+ + ")";
+};
+
+function d3_transformDot(a, b) {
+ return a[0] * b[0] + a[1] * b[1];
+}
+
+function d3_transformNormalize(a) {
+ var k = Math.sqrt(d3_transformDot(a, a));
+ if (k) {
+ a[0] /= k;
+ a[1] /= k;
+ }
+ return k;
+}
+
+function d3_transformCombine(a, b, k) {
+ a[0] += k * b[0];
+ a[1] += k * b[1];
+ return a;
+}
+
+var d3_transformDegrees = 180 / Math.PI;
+d3.mouse = function(container) {
+ return d3_mousePoint(container, d3_eventSource());
+};
+
+// https://bugs.webkit.org/show_bug.cgi?id=44083
+var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
+
+function d3_mousePoint(container, e) {
+ var svg = container.ownerSVGElement || container;
+ if (svg.createSVGPoint) {
+ var point = svg.createSVGPoint();
+ if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
+ svg = d3.select(document.body)
+ .append("svg")
+ .style("position", "absolute")
+ .style("top", 0)
+ .style("left", 0);
+ var ctm = svg[0][0].getScreenCTM();
+ d3_mouse_bug44083 = !(ctm.f || ctm.e);
+ svg.remove();
+ }
+ if (d3_mouse_bug44083) {
+ point.x = e.pageX;
+ point.y = e.pageY;
+ } else {
+ point.x = e.clientX;
+ point.y = e.clientY;
+ }
+ point = point.matrixTransform(container.getScreenCTM().inverse());
+ return [point.x, point.y];
+ }
+ var rect = container.getBoundingClientRect();
+ return [e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop];
+};
+d3.touches = function(container, touches) {
+ if (arguments.length < 2) touches = d3_eventSource().touches;
+ return touches ? d3_array(touches).map(function(touch) {
+ var point = d3_mousePoint(container, touch);
+ point.identifier = touch.identifier;
+ return point;
+ }) : [];
+};
+function d3_noop() {}
+d3.scale = {};
+
+function d3_scaleExtent(domain) {
+ var start = domain[0], stop = domain[domain.length - 1];
+ return start < stop ? [start, stop] : [stop, start];
+}
+
+function d3_scaleRange(scale) {
+ return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
+}
+function d3_scale_nice(domain, nice) {
+ var i0 = 0,
+ i1 = domain.length - 1,
+ x0 = domain[i0],
+ x1 = domain[i1],
+ dx;
+
+ if (x1 < x0) {
+ dx = i0; i0 = i1; i1 = dx;
+ dx = x0; x0 = x1; x1 = dx;
+ }
+
+ if (dx = x1 - x0) {
+ nice = nice(dx);
+ domain[i0] = nice.floor(x0);
+ domain[i1] = nice.ceil(x1);
+ }
+
+ return domain;
+}
+
+function d3_scale_niceDefault() {
+ return Math;
+}
+d3.scale.linear = function() {
+ return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false);
+};
+
+function d3_scale_linear(domain, range, interpolate, clamp) {
+ var output,
+ input;
+
+ function rescale() {
+ var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear,
+ uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
+ output = linear(domain, range, uninterpolate, interpolate);
+ input = linear(range, domain, uninterpolate, d3.interpolate);
+ return scale;
+ }
+
+ function scale(x) {
+ return output(x);
+ }
+
+ // Note: requires range is coercible to number!
+ scale.invert = function(y) {
+ return input(y);
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.map(Number);
+ return rescale();
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ return rescale();
+ };
+
+ scale.rangeRound = function(x) {
+ return scale.range(x).interpolate(d3.interpolateRound);
+ };
+
+ scale.clamp = function(x) {
+ if (!arguments.length) return clamp;
+ clamp = x;
+ return rescale();
+ };
+
+ scale.interpolate = function(x) {
+ if (!arguments.length) return interpolate;
+ interpolate = x;
+ return rescale();
+ };
+
+ scale.ticks = function(m) {
+ return d3_scale_linearTicks(domain, m);
+ };
+
+ scale.tickFormat = function(m) {
+ return d3_scale_linearTickFormat(domain, m);
+ };
+
+ scale.nice = function() {
+ d3_scale_nice(domain, d3_scale_linearNice);
+ return rescale();
+ };
+
+ scale.copy = function() {
+ return d3_scale_linear(domain, range, interpolate, clamp);
+ };
+
+ return rescale();
+}
+
+function d3_scale_linearRebind(scale, linear) {
+ return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+}
+
+function d3_scale_linearNice(dx) {
+ dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
+ return {
+ floor: function(x) { return Math.floor(x / dx) * dx; },
+ ceil: function(x) { return Math.ceil(x / dx) * dx; }
+ };
+}
+
+function d3_scale_linearTickRange(domain, m) {
+ var extent = d3_scaleExtent(domain),
+ span = extent[1] - extent[0],
+ step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)),
+ err = m / span * step;
+
+ // Filter ticks to get closer to the desired count.
+ if (err <= .15) step *= 10;
+ else if (err <= .35) step *= 5;
+ else if (err <= .75) step *= 2;
+
+ // Round start and stop values to step interval.
+ extent[0] = Math.ceil(extent[0] / step) * step;
+ extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive
+ extent[2] = step;
+ return extent;
+}
+
+function d3_scale_linearTicks(domain, m) {
+ return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
+}
+
+function d3_scale_linearTickFormat(domain, m) {
+ return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");
+}
+function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
+ var u = uninterpolate(domain[0], domain[1]),
+ i = interpolate(range[0], range[1]);
+ return function(x) {
+ return i(u(x));
+ };
+}
+function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
+ var u = [],
+ i = [],
+ j = 0,
+ k = Math.min(domain.length, range.length) - 1;
+
+ // Handle descending domains.
+ if (domain[k] < domain[0]) {
+ domain = domain.slice().reverse();
+ range = range.slice().reverse();
+ }
+
+ while (++j <= k) {
+ u.push(uninterpolate(domain[j - 1], domain[j]));
+ i.push(interpolate(range[j - 1], range[j]));
+ }
+
+ return function(x) {
+ var j = d3.bisect(domain, x, 1, k) - 1;
+ return i[j](u[j](x));
+ };
+}
+d3.scale.log = function() {
+ return d3_scale_log(d3.scale.linear(), d3_scale_logp);
+};
+
+function d3_scale_log(linear, log) {
+ var pow = log.pow;
+
+ function scale(x) {
+ return linear(log(x));
+ }
+
+ scale.invert = function(x) {
+ return pow(linear.invert(x));
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return linear.domain().map(pow);
+ log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;
+ pow = log.pow;
+ linear.domain(x.map(log));
+ return scale;
+ };
+
+ scale.nice = function() {
+ linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));
+ return scale;
+ };
+
+ scale.ticks = function() {
+ var extent = d3_scaleExtent(linear.domain()),
+ ticks = [];
+ if (extent.every(isFinite)) {
+ var i = Math.floor(extent[0]),
+ j = Math.ceil(extent[1]),
+ u = pow(extent[0]),
+ v = pow(extent[1]);
+ if (log === d3_scale_logn) {
+ ticks.push(pow(i));
+ for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
+ } else {
+ for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
+ ticks.push(pow(i));
+ }
+ for (i = 0; ticks[i] < u; i++) {} // strip small values
+ for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values
+ ticks = ticks.slice(i, j);
+ }
+ return ticks;
+ };
+
+ scale.tickFormat = function(n, format) {
+ if (arguments.length < 2) format = d3_scale_logFormat;
+ if (arguments.length < 1) return format;
+ var k = n / scale.ticks().length,
+ f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil),
+ e;
+ return function(d) {
+ return d / pow(f(log(d) + e)) < k ? format(d) : "";
+ };
+ };
+
+ scale.copy = function() {
+ return d3_scale_log(linear.copy(), log);
+ };
+
+ return d3_scale_linearRebind(scale, linear);
+}
+
+var d3_scale_logFormat = d3.format(".0e");
+
+function d3_scale_logp(x) {
+ return Math.log(x < 0 ? 0 : x) / Math.LN10;
+}
+
+function d3_scale_logn(x) {
+ return -Math.log(x > 0 ? 0 : -x) / Math.LN10;
+}
+
+d3_scale_logp.pow = function(x) {
+ return Math.pow(10, x);
+};
+
+d3_scale_logn.pow = function(x) {
+ return -Math.pow(10, -x);
+};
+d3.scale.pow = function() {
+ return d3_scale_pow(d3.scale.linear(), 1);
+};
+
+function d3_scale_pow(linear, exponent) {
+ var powp = d3_scale_powPow(exponent),
+ powb = d3_scale_powPow(1 / exponent);
+
+ function scale(x) {
+ return linear(powp(x));
+ }
+
+ scale.invert = function(x) {
+ return powb(linear.invert(x));
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return linear.domain().map(powb);
+ linear.domain(x.map(powp));
+ return scale;
+ };
+
+ scale.ticks = function(m) {
+ return d3_scale_linearTicks(scale.domain(), m);
+ };
+
+ scale.tickFormat = function(m) {
+ return d3_scale_linearTickFormat(scale.domain(), m);
+ };
+
+ scale.nice = function() {
+ return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
+ };
+
+ scale.exponent = function(x) {
+ if (!arguments.length) return exponent;
+ var domain = scale.domain();
+ powp = d3_scale_powPow(exponent = x);
+ powb = d3_scale_powPow(1 / exponent);
+ return scale.domain(domain);
+ };
+
+ scale.copy = function() {
+ return d3_scale_pow(linear.copy(), exponent);
+ };
+
+ return d3_scale_linearRebind(scale, linear);
+}
+
+function d3_scale_powPow(e) {
+ return function(x) {
+ return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
+ };
+}
+d3.scale.sqrt = function() {
+ return d3.scale.pow().exponent(.5);
+};
+d3.scale.ordinal = function() {
+ return d3_scale_ordinal([], {t: "range", x: []});
+};
+
+function d3_scale_ordinal(domain, ranger) {
+ var index,
+ range,
+ rangeBand;
+
+ function scale(x) {
+ return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length];
+ }
+
+ function steps(start, step) {
+ return d3.range(domain.length).map(function(i) { return start + step * i; });
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = [];
+ index = new d3_Map;
+ var i = -1, n = x.length, xi;
+ while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
+ return scale[ranger.t](ranger.x, ranger.p);
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ rangeBand = 0;
+ ranger = {t: "range", x: x};
+ return scale;
+ };
+
+ scale.rangePoints = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var start = x[0],
+ stop = x[1],
+ step = (stop - start) / (domain.length - 1 + padding);
+ range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
+ rangeBand = 0;
+ ranger = {t: "rangePoints", x: x, p: padding};
+ return scale;
+ };
+
+ scale.rangeBands = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var reverse = x[1] < x[0],
+ start = x[reverse - 0],
+ stop = x[1 - reverse],
+ step = (stop - start) / (domain.length + padding);
+ range = steps(start + step * padding, step);
+ if (reverse) range.reverse();
+ rangeBand = step * (1 - padding);
+ ranger = {t: "rangeBands", x: x, p: padding};
+ return scale;
+ };
+
+ scale.rangeRoundBands = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var reverse = x[1] < x[0],
+ start = x[reverse - 0],
+ stop = x[1 - reverse],
+ step = Math.floor((stop - start) / (domain.length + padding)),
+ error = stop - start - (domain.length - padding) * step;
+ range = steps(start + Math.round(error / 2), step);
+ if (reverse) range.reverse();
+ rangeBand = Math.round(step * (1 - padding));
+ ranger = {t: "rangeRoundBands", x: x, p: padding};
+ return scale;
+ };
+
+ scale.rangeBand = function() {
+ return rangeBand;
+ };
+
+ scale.rangeExtent = function() {
+ return d3_scaleExtent(ranger.x);
+ };
+
+ scale.copy = function() {
+ return d3_scale_ordinal(domain, ranger);
+ };
+
+ return scale.domain(domain);
+}
+/*
+ * This product includes color specifications and designs developed by Cynthia
+ * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information.
+ */
+
+d3.scale.category10 = function() {
+ return d3.scale.ordinal().range(d3_category10);
+};
+
+d3.scale.category20 = function() {
+ return d3.scale.ordinal().range(d3_category20);
+};
+
+d3.scale.category20b = function() {
+ return d3.scale.ordinal().range(d3_category20b);
+};
+
+d3.scale.category20c = function() {
+ return d3.scale.ordinal().range(d3_category20c);
+};
+
+var d3_category10 = [
+ "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd",
+ "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf"
+];
+
+var d3_category20 = [
+ "#1f77b4", "#aec7e8",
+ "#ff7f0e", "#ffbb78",
+ "#2ca02c", "#98df8a",
+ "#d62728", "#ff9896",
+ "#9467bd", "#c5b0d5",
+ "#8c564b", "#c49c94",
+ "#e377c2", "#f7b6d2",
+ "#7f7f7f", "#c7c7c7",
+ "#bcbd22", "#dbdb8d",
+ "#17becf", "#9edae5"
+];
+
+var d3_category20b = [
+ "#393b79", "#5254a3", "#6b6ecf", "#9c9ede",
+ "#637939", "#8ca252", "#b5cf6b", "#cedb9c",
+ "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94",
+ "#843c39", "#ad494a", "#d6616b", "#e7969c",
+ "#7b4173", "#a55194", "#ce6dbd", "#de9ed6"
+];
+
+var d3_category20c = [
+ "#3182bd", "#6baed6", "#9ecae1", "#c6dbef",
+ "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2",
+ "#31a354", "#74c476", "#a1d99b", "#c7e9c0",
+ "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb",
+ "#636363", "#969696", "#bdbdbd", "#d9d9d9"
+];
+d3.scale.quantile = function() {
+ return d3_scale_quantile([], []);
+};
+
+function d3_scale_quantile(domain, range) {
+ var thresholds;
+
+ function rescale() {
+ var k = 0,
+ n = domain.length,
+ q = range.length;
+ thresholds = [];
+ while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
+ return scale;
+ }
+
+ function scale(x) {
+ if (isNaN(x = +x)) return NaN;
+ return range[d3.bisect(thresholds, x)];
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending);
+ return rescale();
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ return rescale();
+ };
+
+ scale.quantiles = function() {
+ return thresholds;
+ };
+
+ scale.copy = function() {
+ return d3_scale_quantile(domain, range); // copy on write!
+ };
+
+ return rescale();
+}
+d3.scale.quantize = function() {
+ return d3_scale_quantize(0, 1, [0, 1]);
+};
+
+function d3_scale_quantize(x0, x1, range) {
+ var kx, i;
+
+ function scale(x) {
+ return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
+ }
+
+ function rescale() {
+ kx = range.length / (x1 - x0);
+ i = range.length - 1;
+ return scale;
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return [x0, x1];
+ x0 = +x[0];
+ x1 = +x[x.length - 1];
+ return rescale();
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ return rescale();
+ };
+
+ scale.copy = function() {
+ return d3_scale_quantize(x0, x1, range); // copy on write
+ };
+
+ return rescale();
+}
+d3.scale.identity = function() {
+ return d3_scale_identity([0, 1]);
+};
+
+function d3_scale_identity(domain) {
+
+ function identity(x) { return +x; }
+
+ identity.invert = identity;
+
+ identity.domain = identity.range = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.map(identity);
+ return identity;
+ };
+
+ identity.ticks = function(m) {
+ return d3_scale_linearTicks(domain, m);
+ };
+
+ identity.tickFormat = function(m) {
+ return d3_scale_linearTickFormat(domain, m);
+ };
+
+ identity.copy = function() {
+ return d3_scale_identity(domain);
+ };
+
+ return identity;
+}
+d3.svg = {};
+d3.svg.arc = function() {
+ var innerRadius = d3_svg_arcInnerRadius,
+ outerRadius = d3_svg_arcOuterRadius,
+ startAngle = d3_svg_arcStartAngle,
+ endAngle = d3_svg_arcEndAngle;
+
+ function arc() {
+ var r0 = innerRadius.apply(this, arguments),
+ r1 = outerRadius.apply(this, arguments),
+ a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset,
+ a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset,
+ da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0),
+ df = da < Math.PI ? "0" : "1",
+ c0 = Math.cos(a0),
+ s0 = Math.sin(a0),
+ c1 = Math.cos(a1),
+ s1 = Math.sin(a1);
+ return da >= d3_svg_arcMax
+ ? (r0
+ ? "M0," + r1
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
+ + "M0," + r0
+ + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0)
+ + "A" + r0 + "," + r0 + " 0 1,0 0," + r0
+ + "Z"
+ : "M0," + r1
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
+ + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
+ + "Z")
+ : (r0
+ ? "M" + r1 * c0 + "," + r1 * s0
+ + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
+ + "L" + r0 * c1 + "," + r0 * s1
+ + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0
+ + "Z"
+ : "M" + r1 * c0 + "," + r1 * s0
+ + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
+ + "L0,0"
+ + "Z");
+ }
+
+ arc.innerRadius = function(v) {
+ if (!arguments.length) return innerRadius;
+ innerRadius = d3.functor(v);
+ return arc;
+ };
+
+ arc.outerRadius = function(v) {
+ if (!arguments.length) return outerRadius;
+ outerRadius = d3.functor(v);
+ return arc;
+ };
+
+ arc.startAngle = function(v) {
+ if (!arguments.length) return startAngle;
+ startAngle = d3.functor(v);
+ return arc;
+ };
+
+ arc.endAngle = function(v) {
+ if (!arguments.length) return endAngle;
+ endAngle = d3.functor(v);
+ return arc;
+ };
+
+ arc.centroid = function() {
+ var r = (innerRadius.apply(this, arguments)
+ + outerRadius.apply(this, arguments)) / 2,
+ a = (startAngle.apply(this, arguments)
+ + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
+ return [Math.cos(a) * r, Math.sin(a) * r];
+ };
+
+ return arc;
+};
+
+var d3_svg_arcOffset = -Math.PI / 2,
+ d3_svg_arcMax = 2 * Math.PI - 1e-6;
+
+function d3_svg_arcInnerRadius(d) {
+ return d.innerRadius;
+}
+
+function d3_svg_arcOuterRadius(d) {
+ return d.outerRadius;
+}
+
+function d3_svg_arcStartAngle(d) {
+ return d.startAngle;
+}
+
+function d3_svg_arcEndAngle(d) {
+ return d.endAngle;
+}
+function d3_svg_line(projection) {
+ var x = d3_svg_lineX,
+ y = d3_svg_lineY,
+ interpolate = d3_svg_lineInterpolatorDefault,
+ interpolator = d3_svg_lineInterpolators.get(interpolate),
+ tension = .7;
+
+ function line(d) {
+ return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension);
+ }
+
+ line.x = function(v) {
+ if (!arguments.length) return x;
+ x = v;
+ return line;
+ };
+
+ line.y = function(v) {
+ if (!arguments.length) return y;
+ y = v;
+ return line;
+ };
+
+ line.interpolate = function(v) {
+ if (!arguments.length) return interpolate;
+ if (!d3_svg_lineInterpolators.has(v += "")) v = d3_svg_lineInterpolatorDefault;
+ interpolator = d3_svg_lineInterpolators.get(interpolate = v);
+ return line;
+ };
+
+ line.tension = function(v) {
+ if (!arguments.length) return tension;
+ tension = v;
+ return line;
+ };
+
+ return line;
+}
+
+d3.svg.line = function() {
+ return d3_svg_line(Object);
+};
+
+// Converts the specified array of data into an array of points
+// (x-y tuples), by evaluating the specified `x` and `y` functions on each
+// data point. The `this` context of the evaluated functions is the specified
+// "self" object; each function is passed the current datum and index.
+function d3_svg_linePoints(self, d, x, y) {
+ var points = [],
+ i = -1,
+ n = d.length,
+ fx = typeof x === "function",
+ fy = typeof y === "function",
+ value;
+ if (fx && fy) {
+ while (++i < n) points.push([
+ x.call(self, value = d[i], i),
+ y.call(self, value, i)
+ ]);
+ } else if (fx) {
+ while (++i < n) points.push([x.call(self, d[i], i), y]);
+ } else if (fy) {
+ while (++i < n) points.push([x, y.call(self, d[i], i)]);
+ } else {
+ while (++i < n) points.push([x, y]);
+ }
+ return points;
+}
+
+// The default `x` property, which references d[0].
+function d3_svg_lineX(d) {
+ return d[0];
+}
+
+// The default `y` property, which references d[1].
+function d3_svg_lineY(d) {
+ return d[1];
+}
+
+var d3_svg_lineInterpolatorDefault = "linear";
+
+// The various interpolators supported by the `line` class.
+var d3_svg_lineInterpolators = d3.map({
+ "linear": d3_svg_lineLinear,
+ "step-before": d3_svg_lineStepBefore,
+ "step-after": d3_svg_lineStepAfter,
+ "basis": d3_svg_lineBasis,
+ "basis-open": d3_svg_lineBasisOpen,
+ "basis-closed": d3_svg_lineBasisClosed,
+ "bundle": d3_svg_lineBundle,
+ "cardinal": d3_svg_lineCardinal,
+ "cardinal-open": d3_svg_lineCardinalOpen,
+ "cardinal-closed": d3_svg_lineCardinalClosed,
+ "monotone": d3_svg_lineMonotone
+});
+
+// Linear interpolation; generates "L" commands.
+function d3_svg_lineLinear(points) {
+ var i = 0,
+ n = points.length,
+ p = points[0],
+ path = [p[0], ",", p[1]];
+ while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]);
+ return path.join("");
+}
+
+// Step interpolation; generates "H" and "V" commands.
+function d3_svg_lineStepBefore(points) {
+ var i = 0,
+ n = points.length,
+ p = points[0],
+ path = [p[0], ",", p[1]];
+ while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
+ return path.join("");
+}
+
+// Step interpolation; generates "H" and "V" commands.
+function d3_svg_lineStepAfter(points) {
+ var i = 0,
+ n = points.length,
+ p = points[0],
+ path = [p[0], ",", p[1]];
+ while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
+ return path.join("");
+}
+
+// Open cardinal spline interpolation; generates "C" commands.
+function d3_svg_lineCardinalOpen(points, tension) {
+ return points.length < 4
+ ? d3_svg_lineLinear(points)
+ : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1),
+ d3_svg_lineCardinalTangents(points, tension));
+}
+
+// Closed cardinal spline interpolation; generates "C" commands.
+function d3_svg_lineCardinalClosed(points, tension) {
+ return points.length < 3
+ ? d3_svg_lineLinear(points)
+ : points[0] + d3_svg_lineHermite((points.push(points[0]), points),
+ d3_svg_lineCardinalTangents([points[points.length - 2]]
+ .concat(points, [points[1]]), tension));
+}
+
+// Cardinal spline interpolation; generates "C" commands.
+function d3_svg_lineCardinal(points, tension, closed) {
+ return points.length < 3
+ ? d3_svg_lineLinear(points)
+ : points[0] + d3_svg_lineHermite(points,
+ d3_svg_lineCardinalTangents(points, tension));
+}
+
+// Hermite spline construction; generates "C" commands.
+function d3_svg_lineHermite(points, tangents) {
+ if (tangents.length < 1
+ || (points.length != tangents.length
+ && points.length != tangents.length + 2)) {
+ return d3_svg_lineLinear(points);
+ }
+
+ var quad = points.length != tangents.length,
+ path = "",
+ p0 = points[0],
+ p = points[1],
+ t0 = tangents[0],
+ t = t0,
+ pi = 1;
+
+ if (quad) {
+ path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3)
+ + "," + p[0] + "," + p[1];
+ p0 = points[1];
+ pi = 2;
+ }
+
+ if (tangents.length > 1) {
+ t = tangents[1];
+ p = points[pi];
+ pi++;
+ path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1])
+ + "," + (p[0] - t[0]) + "," + (p[1] - t[1])
+ + "," + p[0] + "," + p[1];
+ for (var i = 2; i < tangents.length; i++, pi++) {
+ p = points[pi];
+ t = tangents[i];
+ path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1])
+ + "," + p[0] + "," + p[1];
+ }
+ }
+
+ if (quad) {
+ var lp = points[pi];
+ path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3)
+ + "," + lp[0] + "," + lp[1];
+ }
+
+ return path;
+}
+
+// Generates tangents for a cardinal spline.
+function d3_svg_lineCardinalTangents(points, tension) {
+ var tangents = [],
+ a = (1 - tension) / 2,
+ p0,
+ p1 = points[0],
+ p2 = points[1],
+ i = 1,
+ n = points.length;
+ while (++i < n) {
+ p0 = p1;
+ p1 = p2;
+ p2 = points[i];
+ tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]);
+ }
+ return tangents;
+}
+
+// B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasis(points) {
+ if (points.length < 3) return d3_svg_lineLinear(points);
+ var i = 1,
+ n = points.length,
+ pi = points[0],
+ x0 = pi[0],
+ y0 = pi[1],
+ px = [x0, x0, x0, (pi = points[1])[0]],
+ py = [y0, y0, y0, pi[1]],
+ path = [x0, ",", y0];
+ d3_svg_lineBasisBezier(path, px, py);
+ while (++i < n) {
+ pi = points[i];
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ i = -1;
+ while (++i < 2) {
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ return path.join("");
+}
+
+// Open B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasisOpen(points) {
+ if (points.length < 4) return d3_svg_lineLinear(points);
+ var path = [],
+ i = -1,
+ n = points.length,
+ pi,
+ px = [0],
+ py = [0];
+ while (++i < 3) {
+ pi = points[i];
+ px.push(pi[0]);
+ py.push(pi[1]);
+ }
+ path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px)
+ + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
+ --i; while (++i < n) {
+ pi = points[i];
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ return path.join("");
+}
+
+// Closed B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasisClosed(points) {
+ var path,
+ i = -1,
+ n = points.length,
+ m = n + 4,
+ pi,
+ px = [],
+ py = [];
+ while (++i < 4) {
+ pi = points[i % n];
+ px.push(pi[0]);
+ py.push(pi[1]);
+ }
+ path = [
+ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",",
+ d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)
+ ];
+ --i; while (++i < m) {
+ pi = points[i % n];
+ px.shift(); px.push(pi[0]);
+ py.shift(); py.push(pi[1]);
+ d3_svg_lineBasisBezier(path, px, py);
+ }
+ return path.join("");
+}
+
+function d3_svg_lineBundle(points, tension) {
+ var n = points.length - 1,
+ x0 = points[0][0],
+ y0 = points[0][1],
+ dx = points[n][0] - x0,
+ dy = points[n][1] - y0,
+ i = -1,
+ p,
+ t;
+ while (++i <= n) {
+ p = points[i];
+ t = i / n;
+ p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
+ p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
+ }
+ return d3_svg_lineBasis(points);
+}
+
+// Returns the dot product of the given four-element vectors.
+function d3_svg_lineDot4(a, b) {
+ return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+}
+
+// Matrix to transform basis (b-spline) control points to bezier
+// control points. Derived from FvD 11.2.8.
+var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0],
+ d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0],
+ d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6];
+
+// Pushes a "C" Bézier curve onto the specified path array, given the
+// two specified four-element arrays which define the control points.
+function d3_svg_lineBasisBezier(path, x, y) {
+ path.push(
+ "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x),
+ ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
+}
+
+// Computes the slope from points p0 to p1.
+function d3_svg_lineSlope(p0, p1) {
+ return (p1[1] - p0[1]) / (p1[0] - p0[0]);
+}
+
+// Compute three-point differences for the given points.
+// http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference
+function d3_svg_lineFiniteDifferences(points) {
+ var i = 0,
+ j = points.length - 1,
+ m = [],
+ p0 = points[0],
+ p1 = points[1],
+ d = m[0] = d3_svg_lineSlope(p0, p1);
+ while (++i < j) {
+ m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]));
+ }
+ m[i] = d;
+ return m;
+}
+
+// Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite
+// interpolation. Returns an array of tangent vectors. For details, see
+// http://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+function d3_svg_lineMonotoneTangents(points) {
+ var tangents = [],
+ d,
+ a,
+ b,
+ s,
+ m = d3_svg_lineFiniteDifferences(points),
+ i = -1,
+ j = points.length - 1;
+
+ // The first two steps are done by computing finite-differences:
+ // 1. Compute the slopes of the secant lines between successive points.
+ // 2. Initialize the tangents at every point as the average of the secants.
+
+ // Then, for each segment…
+ while (++i < j) {
+ d = d3_svg_lineSlope(points[i], points[i + 1]);
+
+ // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set
+ // mk = m{k + 1} = 0 as the spline connecting these points must be flat to
+ // preserve monotonicity. Ignore step 4 and 5 for those k.
+
+ if (Math.abs(d) < 1e-6) {
+ m[i] = m[i + 1] = 0;
+ } else {
+ // 4. Let ak = mk / dk and bk = m{k + 1} / dk.
+ a = m[i] / d;
+ b = m[i + 1] / d;
+
+ // 5. Prevent overshoot and ensure monotonicity by restricting the
+ // magnitude of vector <ak, bk> to a circle of radius 3.
+ s = a * a + b * b;
+ if (s > 9) {
+ s = d * 3 / Math.sqrt(s);
+ m[i] = s * a;
+ m[i + 1] = s * b;
+ }
+ }
+ }
+
+ // Compute the normalized tangent vector from the slopes. Note that if x is
+ // not monotonic, it's possible that the slope will be infinite, so we protect
+ // against NaN by setting the coordinate to zero.
+ i = -1; while (++i <= j) {
+ s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0])
+ / (6 * (1 + m[i] * m[i]));
+ tangents.push([s || 0, m[i] * s || 0]);
+ }
+
+ return tangents;
+}
+
+function d3_svg_lineMonotone(points) {
+ return points.length < 3
+ ? d3_svg_lineLinear(points)
+ : points[0] +
+ d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
+}
+d3.svg.line.radial = function() {
+ var line = d3_svg_line(d3_svg_lineRadial);
+ line.radius = line.x, delete line.x;
+ line.angle = line.y, delete line.y;
+ return line;
+};
+
+function d3_svg_lineRadial(points) {
+ var point,
+ i = -1,
+ n = points.length,
+ r,
+ a;
+ while (++i < n) {
+ point = points[i];
+ r = point[0];
+ a = point[1] + d3_svg_arcOffset;
+ point[0] = r * Math.cos(a);
+ point[1] = r * Math.sin(a);
+ }
+ return points;
+}
+function d3_svg_area(projection) {
+ var x0 = d3_svg_lineX,
+ x1 = d3_svg_lineX,
+ y0 = 0,
+ y1 = d3_svg_lineY,
+ interpolate,
+ i0,
+ i1,
+ tension = .7;
+
+ function area(d) {
+ if (d.length < 1) return null;
+ var points0 = d3_svg_linePoints(this, d, x0, y0),
+ points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1);
+ return "M" + i0(projection(points1), tension)
+ + "L" + i1(projection(points0.reverse()), tension)
+ + "Z";
+ }
+
+ area.x = function(x) {
+ if (!arguments.length) return x1;
+ x0 = x1 = x;
+ return area;
+ };
+
+ area.x0 = function(x) {
+ if (!arguments.length) return x0;
+ x0 = x;
+ return area;
+ };
+
+ area.x1 = function(x) {
+ if (!arguments.length) return x1;
+ x1 = x;
+ return area;
+ };
+
+ area.y = function(y) {
+ if (!arguments.length) return y1;
+ y0 = y1 = y;
+ return area;
+ };
+
+ area.y0 = function(y) {
+ if (!arguments.length) return y0;
+ y0 = y;
+ return area;
+ };
+
+ area.y1 = function(y) {
+ if (!arguments.length) return y1;
+ y1 = y;
+ return area;
+ };
+
+ area.interpolate = function(x) {
+ if (!arguments.length) return interpolate;
+ if (!d3_svg_lineInterpolators.has(x += "")) x = d3_svg_lineInterpolatorDefault;
+ i0 = d3_svg_lineInterpolators.get(interpolate = x);
+ i1 = i0.reverse || i0;
+ return area;
+ };
+
+ area.tension = function(x) {
+ if (!arguments.length) return tension;
+ tension = x;
+ return area;
+ };
+
+ return area.interpolate("linear");
+}
+
+d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
+d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
+
+d3.svg.area = function() {
+ return d3_svg_area(Object);
+};
+
+function d3_svg_areaX(points) {
+ return function(d, i) {
+ return points[i][0];
+ };
+}
+
+function d3_svg_areaY(points) {
+ return function(d, i) {
+ return points[i][1];
+ };
+}
+d3.svg.area.radial = function() {
+ var area = d3_svg_area(d3_svg_lineRadial);
+ area.radius = area.x, delete area.x;
+ area.innerRadius = area.x0, delete area.x0;
+ area.outerRadius = area.x1, delete area.x1;
+ area.angle = area.y, delete area.y;
+ area.startAngle = area.y0, delete area.y0;
+ area.endAngle = area.y1, delete area.y1;
+ return area;
+};
+d3.svg.chord = function() {
+ var source = d3_svg_chordSource,
+ target = d3_svg_chordTarget,
+ radius = d3_svg_chordRadius,
+ startAngle = d3_svg_arcStartAngle,
+ endAngle = d3_svg_arcEndAngle;
+
+ // TODO Allow control point to be customized.
+
+ function chord(d, i) {
+ var s = subgroup(this, source, d, i),
+ t = subgroup(this, target, d, i);
+ return "M" + s.p0
+ + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t)
+ ? curve(s.r, s.p1, s.r, s.p0)
+ : curve(s.r, s.p1, t.r, t.p0)
+ + arc(t.r, t.p1, t.a1 - t.a0)
+ + curve(t.r, t.p1, s.r, s.p0))
+ + "Z";
+ }
+
+ function subgroup(self, f, d, i) {
+ var subgroup = f.call(self, d, i),
+ r = radius.call(self, subgroup, i),
+ a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset,
+ a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
+ return {
+ r: r,
+ a0: a0,
+ a1: a1,
+ p0: [r * Math.cos(a0), r * Math.sin(a0)],
+ p1: [r * Math.cos(a1), r * Math.sin(a1)]
+ };
+ }
+
+ function equals(a, b) {
+ return a.a0 == b.a0 && a.a1 == b.a1;
+ }
+
+ function arc(r, p, a) {
+ return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;
+ }
+
+ function curve(r0, p0, r1, p1) {
+ return "Q 0,0 " + p1;
+ }
+
+ chord.radius = function(v) {
+ if (!arguments.length) return radius;
+ radius = d3.functor(v);
+ return chord;
+ };
+
+ chord.source = function(v) {
+ if (!arguments.length) return source;
+ source = d3.functor(v);
+ return chord;
+ };
+
+ chord.target = function(v) {
+ if (!arguments.length) return target;
+ target = d3.functor(v);
+ return chord;
+ };
+
+ chord.startAngle = function(v) {
+ if (!arguments.length) return startAngle;
+ startAngle = d3.functor(v);
+ return chord;
+ };
+
+ chord.endAngle = function(v) {
+ if (!arguments.length) return endAngle;
+ endAngle = d3.functor(v);
+ return chord;
+ };
+
+ return chord;
+};
+
+function d3_svg_chordSource(d) {
+ return d.source;
+}
+
+function d3_svg_chordTarget(d) {
+ return d.target;
+}
+
+function d3_svg_chordRadius(d) {
+ return d.radius;
+}
+
+function d3_svg_chordStartAngle(d) {
+ return d.startAngle;
+}
+
+function d3_svg_chordEndAngle(d) {
+ return d.endAngle;
+}
+d3.svg.diagonal = function() {
+ var source = d3_svg_chordSource,
+ target = d3_svg_chordTarget,
+ projection = d3_svg_diagonalProjection;
+
+ function diagonal(d, i) {
+ var p0 = source.call(this, d, i),
+ p3 = target.call(this, d, i),
+ m = (p0.y + p3.y) / 2,
+ p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3];
+ p = p.map(projection);
+ return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
+ }
+
+ diagonal.source = function(x) {
+ if (!arguments.length) return source;
+ source = d3.functor(x);
+ return diagonal;
+ };
+
+ diagonal.target = function(x) {
+ if (!arguments.length) return target;
+ target = d3.functor(x);
+ return diagonal;
+ };
+
+ diagonal.projection = function(x) {
+ if (!arguments.length) return projection;
+ projection = x;
+ return diagonal;
+ };
+
+ return diagonal;
+};
+
+function d3_svg_diagonalProjection(d) {
+ return [d.x, d.y];
+}
+d3.svg.diagonal.radial = function() {
+ var diagonal = d3.svg.diagonal(),
+ projection = d3_svg_diagonalProjection,
+ projection_ = diagonal.projection;
+
+ diagonal.projection = function(x) {
+ return arguments.length
+ ? projection_(d3_svg_diagonalRadialProjection(projection = x))
+ : projection;
+ };
+
+ return diagonal;
+};
+
+function d3_svg_diagonalRadialProjection(projection) {
+ return function() {
+ var d = projection.apply(this, arguments),
+ r = d[0],
+ a = d[1] + d3_svg_arcOffset;
+ return [r * Math.cos(a), r * Math.sin(a)];
+ };
+}
+d3.svg.mouse = d3.mouse;
+d3.svg.touches = d3.touches;
+d3.svg.symbol = function() {
+ var type = d3_svg_symbolType,
+ size = d3_svg_symbolSize;
+
+ function symbol(d, i) {
+ return (d3_svg_symbols.get(type.call(this, d, i))
+ || d3_svg_symbolCircle)
+ (size.call(this, d, i));
+ }
+
+ symbol.type = function(x) {
+ if (!arguments.length) return type;
+ type = d3.functor(x);
+ return symbol;
+ };
+
+ // size of symbol in square pixels
+ symbol.size = function(x) {
+ if (!arguments.length) return size;
+ size = d3.functor(x);
+ return symbol;
+ };
+
+ return symbol;
+};
+
+function d3_svg_symbolSize() {
+ return 64;
+}
+
+function d3_svg_symbolType() {
+ return "circle";
+}
+
+function d3_svg_symbolCircle(size) {
+ var r = Math.sqrt(size / Math.PI);
+ return "M0," + r
+ + "A" + r + "," + r + " 0 1,1 0," + (-r)
+ + "A" + r + "," + r + " 0 1,1 0," + r
+ + "Z";
+}
+
+// TODO cross-diagonal?
+var d3_svg_symbols = d3.map({
+ "circle": d3_svg_symbolCircle,
+ "cross": function(size) {
+ var r = Math.sqrt(size / 5) / 2;
+ return "M" + -3 * r + "," + -r
+ + "H" + -r
+ + "V" + -3 * r
+ + "H" + r
+ + "V" + -r
+ + "H" + 3 * r
+ + "V" + r
+ + "H" + r
+ + "V" + 3 * r
+ + "H" + -r
+ + "V" + r
+ + "H" + -3 * r
+ + "Z";
+ },
+ "diamond": function(size) {
+ var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)),
+ rx = ry * d3_svg_symbolTan30;
+ return "M0," + -ry
+ + "L" + rx + ",0"
+ + " 0," + ry
+ + " " + -rx + ",0"
+ + "Z";
+ },
+ "square": function(size) {
+ var r = Math.sqrt(size) / 2;
+ return "M" + -r + "," + -r
+ + "L" + r + "," + -r
+ + " " + r + "," + r
+ + " " + -r + "," + r
+ + "Z";
+ },
+ "triangle-down": function(size) {
+ var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
+ ry = rx * d3_svg_symbolSqrt3 / 2;
+ return "M0," + ry
+ + "L" + rx +"," + -ry
+ + " " + -rx + "," + -ry
+ + "Z";
+ },
+ "triangle-up": function(size) {
+ var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
+ ry = rx * d3_svg_symbolSqrt3 / 2;
+ return "M0," + -ry
+ + "L" + rx +"," + ry
+ + " " + -rx + "," + ry
+ + "Z";
+ }
+});
+
+d3.svg.symbolTypes = d3_svg_symbols.keys();
+
+var d3_svg_symbolSqrt3 = Math.sqrt(3),
+ d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
+d3.svg.axis = function() {
+ var scale = d3.scale.linear(),
+ orient = "bottom",
+ tickMajorSize = 6,
+ tickMinorSize = 6,
+ tickEndSize = 6,
+ tickPadding = 3,
+ tickArguments_ = [10],
+ tickValues = null,
+ tickFormat_,
+ tickSubdivide = 0;
+
+ function axis(g) {
+ g.each(function() {
+ var g = d3.select(this);
+
+ // Ticks, or domain values for ordinal scales.
+ var ticks = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain()) : tickValues,
+ tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_;
+
+ // Minor ticks.
+ var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide),
+ subtick = g.selectAll(".minor").data(subticks, String),
+ subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6),
+ subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(),
+ subtickUpdate = d3.transition(subtick).style("opacity", 1);
+
+ // Major ticks.
+ var tick = g.selectAll("g").data(ticks, String),
+ tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6),
+ tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(),
+ tickUpdate = d3.transition(tick).style("opacity", 1),
+ tickTransform;
+
+ // Domain.
+ var range = d3_scaleRange(scale),
+ path = g.selectAll(".domain").data([0]),
+ pathEnter = path.enter().append("path").attr("class", "domain"),
+ pathUpdate = d3.transition(path);
+
+ // Stash a snapshot of the new scale, and retrieve the old snapshot.
+ var scale1 = scale.copy(),
+ scale0 = this.__chart__ || scale1;
+ this.__chart__ = scale1;
+
+ tickEnter.append("line").attr("class", "tick");
+ tickEnter.append("text");
+ tickUpdate.select("text").text(tickFormat);
+
+ switch (orient) {
+ case "bottom": {
+ tickTransform = d3_svg_axisX;
+ subtickEnter.attr("y2", tickMinorSize);
+ subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
+ tickEnter.select("line").attr("y2", tickMajorSize);
+ tickEnter.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding);
+ tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize);
+ tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle");
+ pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
+ break;
+ }
+ case "top": {
+ tickTransform = d3_svg_axisX;
+ subtickEnter.attr("y2", -tickMinorSize);
+ subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
+ tickEnter.select("line").attr("y2", -tickMajorSize);
+ tickEnter.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
+ tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize);
+ tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle");
+ pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
+ break;
+ }
+ case "left": {
+ tickTransform = d3_svg_axisY;
+ subtickEnter.attr("x2", -tickMinorSize);
+ subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
+ tickEnter.select("line").attr("x2", -tickMajorSize);
+ tickEnter.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
+ tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0);
+ tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end");
+ pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
+ break;
+ }
+ case "right": {
+ tickTransform = d3_svg_axisY;
+ subtickEnter.attr("x2", tickMinorSize);
+ subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
+ tickEnter.select("line").attr("x2", tickMajorSize);
+ tickEnter.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding);
+ tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0);
+ tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start");
+ pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
+ break;
+ }
+ }
+
+ // For quantitative scales:
+ // - enter new ticks from the old scale
+ // - exit old ticks to the new scale
+ if (scale.ticks) {
+ tickEnter.call(tickTransform, scale0);
+ tickUpdate.call(tickTransform, scale1);
+ tickExit.call(tickTransform, scale1);
+ subtickEnter.call(tickTransform, scale0);
+ subtickUpdate.call(tickTransform, scale1);
+ subtickExit.call(tickTransform, scale1);
+ }
+
+ // For ordinal scales:
+ // - any entering ticks are undefined in the old scale
+ // - any exiting ticks are undefined in the new scale
+ // Therefore, we only need to transition updating ticks.
+ else {
+ var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; };
+ tickEnter.call(tickTransform, x);
+ tickUpdate.call(tickTransform, x);
+ }
+ });
+ }
+
+ axis.scale = function(x) {
+ if (!arguments.length) return scale;
+ scale = x;
+ return axis;
+ };
+
+ axis.orient = function(x) {
+ if (!arguments.length) return orient;
+ orient = x;
+ return axis;
+ };
+
+ axis.ticks = function() {
+ if (!arguments.length) return tickArguments_;
+ tickArguments_ = arguments;
+ return axis;
+ };
+
+ axis.tickValues = function(x) {
+ if (!arguments.length) return tickValues;
+ tickValues = x;
+ return axis;
+ };
+
+ axis.tickFormat = function(x) {
+ if (!arguments.length) return tickFormat_;
+ tickFormat_ = x;
+ return axis;
+ };
+
+ axis.tickSize = function(x, y, z) {
+ if (!arguments.length) return tickMajorSize;
+ var n = arguments.length - 1;
+ tickMajorSize = +x;
+ tickMinorSize = n > 1 ? +y : tickMajorSize;
+ tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
+ return axis;
+ };
+
+ axis.tickPadding = function(x) {
+ if (!arguments.length) return tickPadding;
+ tickPadding = +x;
+ return axis;
+ };
+
+ axis.tickSubdivide = function(x) {
+ if (!arguments.length) return tickSubdivide;
+ tickSubdivide = +x;
+ return axis;
+ };
+
+ return axis;
+};
+
+function d3_svg_axisX(selection, x) {
+ selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; });
+}
+
+function d3_svg_axisY(selection, y) {
+ selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; });
+}
+
+function d3_svg_axisSubdivide(scale, ticks, m) {
+ subticks = [];
+ if (m && ticks.length > 1) {
+ var extent = d3_scaleExtent(scale.domain()),
+ subticks,
+ i = -1,
+ n = ticks.length,
+ d = (ticks[1] - ticks[0]) / ++m,
+ j,
+ v;
+ while (++i < n) {
+ for (j = m; --j > 0;) {
+ if ((v = +ticks[i] - j * d) >= extent[0]) {
+ subticks.push(v);
+ }
+ }
+ }
+ for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) {
+ subticks.push(v);
+ }
+ }
+ return subticks;
+}
+d3.svg.brush = function() {
+ var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"),
+ x = null, // x-scale, optional
+ y = null, // y-scale, optional
+ resizes = d3_svg_brushResizes[0],
+ extent = [[0, 0], [0, 0]], // [x0, y0], [x1, y1], in pixels (integers)
+ extentDomain; // the extent in data space, lazily created
+
+ function brush(g) {
+ g.each(function() {
+ var g = d3.select(this),
+ bg = g.selectAll(".background").data([0]),
+ fg = g.selectAll(".extent").data([0]),
+ tz = g.selectAll(".resize").data(resizes, String),
+ e;
+
+ // Prepare the brush container for events.
+ g
+ .style("pointer-events", "all")
+ .on("mousedown.brush", brushstart)
+ .on("touchstart.brush", brushstart);
+
+ // An invisible, mouseable area for starting a new brush.
+ bg.enter().append("rect")
+ .attr("class", "background")
+ .style("visibility", "hidden")
+ .style("cursor", "crosshair");
+
+ // The visible brush extent; style this as you like!
+ fg.enter().append("rect")
+ .attr("class", "extent")
+ .style("cursor", "move");
+
+ // More invisible rects for resizing the extent.
+ tz.enter().append("g")
+ .attr("class", function(d) { return "resize " + d; })
+ .style("cursor", function(d) { return d3_svg_brushCursor[d]; })
+ .append("rect")
+ .attr("x", function(d) { return /[ew]$/.test(d) ? -3 : null; })
+ .attr("y", function(d) { return /^[ns]/.test(d) ? -3 : null; })
+ .attr("width", 6)
+ .attr("height", 6)
+ .style("visibility", "hidden");
+
+ // Show or hide the resizers.
+ tz.style("display", brush.empty() ? "none" : null);
+
+ // Remove any superfluous resizers.
+ tz.exit().remove();
+
+ // Initialize the background to fill the defined range.
+ // If the range isn't defined, you can post-process.
+ if (x) {
+ e = d3_scaleRange(x);
+ bg.attr("x", e[0]).attr("width", e[1] - e[0]);
+ redrawX(g);
+ }
+ if (y) {
+ e = d3_scaleRange(y);
+ bg.attr("y", e[0]).attr("height", e[1] - e[0]);
+ redrawY(g);
+ }
+ redraw(g);
+ });
+ }
+
+ function redraw(g) {
+ g.selectAll(".resize").attr("transform", function(d) {
+ return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";
+ });
+ }
+
+ function redrawX(g) {
+ g.select(".extent").attr("x", extent[0][0]);
+ g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);
+ }
+
+ function redrawY(g) {
+ g.select(".extent").attr("y", extent[0][1]);
+ g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);
+ }
+
+ function brushstart() {
+ var target = this,
+ eventTarget = d3.select(d3.event.target),
+ event_ = event.of(target, arguments),
+ g = d3.select(target),
+ resizing = eventTarget.datum(),
+ resizingX = !/^(n|s)$/.test(resizing) && x,
+ resizingY = !/^(e|w)$/.test(resizing) && y,
+ dragging = eventTarget.classed("extent"),
+ center,
+ origin = mouse(),
+ offset;
+
+ var w = d3.select(window)
+ .on("mousemove.brush", brushmove)
+ .on("mouseup.brush", brushend)
+ .on("touchmove.brush", brushmove)
+ .on("touchend.brush", brushend)
+ .on("keydown.brush", keydown)
+ .on("keyup.brush", keyup);
+
+ // If the extent was clicked on, drag rather than brush;
+ // store the point between the mouse and extent origin instead.
+ if (dragging) {
+ origin[0] = extent[0][0] - origin[0];
+ origin[1] = extent[0][1] - origin[1];
+ }
+
+ // If a resizer was clicked on, record which side is to be resized.
+ // Also, set the origin to the opposite side.
+ else if (resizing) {
+ var ex = +/w$/.test(resizing),
+ ey = +/^n/.test(resizing);
+ offset = [extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1]];
+ origin[0] = extent[ex][0];
+ origin[1] = extent[ey][1];
+ }
+
+ // If the ALT key is down when starting a brush, the center is at the mouse.
+
projects / limn-bak.git / commitdiff
