https://github.com/mbostock/d3
Tip revision: 067959832875993b721a27a322c8944bf5dcd1a3 authored by Mike Bostock on 28 April 2011, 18:43:26 UTC
Better jittering for coincident nodes.
Better jittering for coincident nodes.
Tip revision: 0679598
d3.js
(function(){d3 = {version: "1.13.4"}; // semver
if (!Date.now) Date.now = function() {
return +new Date();
};
if (!Object.create) Object.create = function(o) {
/** @constructor */ function f() {}
f.prototype = o;
return new f();
};
var d3_array = d3_arraySlice; // conversion for NodeLists
function d3_arrayCopy(psuedoarray) {
var i = -1, n = psuedoarray.length, array = [];
while (++i < n) array.push(psuedoarray[i]);
return array;
}
function d3_arraySlice(psuedoarray) {
return Array.prototype.slice.call(psuedoarray);
}
try {
d3_array(document.documentElement.childNodes)[0].nodeType;
} catch(e) {
d3_array = d3_arrayCopy;
}
d3.functor = function(v) {
return typeof v == "function" ? v : function() { return v; };
};
// A getter-setter method that preserves the appropriate `this` context.
d3.rebind = function(object, method) {
return function() {
var x = method.apply(object, arguments);
return arguments.length ? object : x;
};
};
d3.ascending = function(a, b) {
return a < b ? -1 : a > b ? 1 : 0;
};
d3.descending = function(a, b) {
return b < a ? -1 : b > a ? 1 : 0;
};
d3.min = function(array, f) {
var i = 0,
n = array.length,
a = array[0],
b;
if (arguments.length == 1) {
while (++i < n) if (a > (b = array[i])) a = b;
} else {
a = f(array[0]);
while (++i < n) if (a > (b = f(array[i]))) a = b;
}
return a;
};
d3.max = function(array, f) {
var i = 0,
n = array.length,
a = array[0],
b;
if (arguments.length == 1) {
while (++i < n) if (a < (b = array[i])) a = b;
} else {
a = f(a);
while (++i < n) if (a < (b = f(array[i]))) 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,
o = {};
while (++i < n) {
if ((keyValue = key(object = array[i])) in o) {
o[keyValue].push(object);
} else {
o[keyValue] = [object];
}
}
for (keyValue in o) {
o[keyValue] = map(o[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.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+$)/g, "").replace(/\s+/g, " ");
}
//
// Note: assigning to the arguments array simultaneously changes the value of
// the corresponding argument!
//
// TODO The `this` argument probably shouldn't be the first argument to the
// callback, anyway, since it's redundant. However, that will require a major
// version bump due to backwards compatibility, so I'm not changing it right
// away.
//
function d3_call(callback) {
callback.apply(this, (arguments[0] = this, arguments));
return this;
}
/**
* @param {number} start
* @param {number=} stop
* @param {number=} step
*/
d3.range = function(start, stop, step) {
if (arguments.length == 1) { stop = start; start = 0; }
if (step == null) step = 1;
if ((stop - start) / step == Infinity) throw new Error("infinite range");
var range = [],
i = -1,
j;
if (step < 0) while ((j = start + step * ++i) > stop) range.push(j);
else while ((j = start + step * ++i) < stop) range.push(j);
return range;
};
d3.requote = function(s) {
return s.replace(d3_requote_re, "\\$&");
};
var d3_requote_re = /[\\\^\$\*\+\?\[\]\(\)\.\{\}]/g;
d3.xhr = function(url, mime, callback) {
var req = new XMLHttpRequest();
if (arguments.length < 3) callback = mime;
else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
req.open("GET", url, true);
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);
};
d3.ns = {
prefix: {
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/"
},
qualify: function(name) {
var i = name.indexOf(":");
return i < 0 ? name : {
space: d3.ns.prefix[name.substring(0, i)],
local: name.substring(i + 1)
};
}
};
/** @param {...string} types */
d3.dispatch = function(types) {
var dispatch = {},
type;
for (var i = 0, n = arguments.length; i < n; i++) {
type = arguments[i];
dispatch[type] = d3_dispatch(type);
}
return dispatch;
};
function d3_dispatch(type) {
var dispatch = {},
listeners = [];
dispatch.add = function(listener) {
for (var i = 0; i < listeners.length; i++) {
if (listeners[i].listener == listener) return dispatch; // already registered
}
listeners.push({listener: listener, on: true});
return dispatch;
};
dispatch.remove = function(listener) {
for (var i = 0; i < listeners.length; i++) {
var l = listeners[i];
if (l.listener == listener) {
l.on = false;
listeners = listeners.slice(0, i).concat(listeners.slice(i + 1));
break;
}
}
return dispatch;
};
dispatch.dispatch = function() {
var ls = listeners; // defensive reference
for (var i = 0, n = ls.length; i < n; i++) {
var l = ls[i];
if (l.on) l.listener.apply(this, arguments);
}
};
return dispatch;
};
// TODO align, type
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];
if (precision) precision = precision.substring(1);
if (zfill) {
fill = "0"; // TODO align = "=";
if (comma) width -= Math.floor((width - 1) / 4);
}
if (type == "d") precision = "0";
return function(value) {
var number = +value,
negative = (number < 0) && (number = -number) ? "\u2212" : sign;
// Return the empty string for floats formatted as ints.
if ((type == "d") && (number % 1)) return "";
// Convert the input value to the desired precision.
if (precision) value = number.toFixed(precision);
else value = "" + number;
// 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;
};
};
// [[fill]align][sign][#][0][width][,][.precision][type]
var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
// 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;
}
/*
* 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);
var d3_ease = {
linear: function() { return d3_ease_linear; },
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 = {
"in": function(f) { return f; },
"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";
return d3_ease_mode[m](d3_ease[t].apply(null, Array.prototype.slice.call(arguments, 1)));
};
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_linear(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 t ? Math.pow(2, 10 * (t - 1)) - 1e-3 : 0;
}
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;
d3.interpolate = function(a, b) {
if (typeof b == "number") return d3.interpolateNumber(+a, b);
if (typeof b == "string") {
return (b in d3_rgb_names) || /^(#|rgb\(|hsl\()/.test(b)
? d3.interpolateRgb(String(a), b)
: d3.interpolateString(String(a), b);
}
if (b instanceof Array) return d3.interpolateArray(a, b);
return d3.interpolateObject(a, b);
};
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.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 "rgb(" + Math.round(ar + br * t)
+ "," + Math.round(ag + bg * t)
+ "," + 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+|\d+\.|\.\d+|\d+)(?:[eE][-]?\d+)?/g,
d3_interpolate_rgb = {background: 1, fill: 1, stroke: 1};
function d3_interpolateByName(n) {
return n in d3_interpolate_rgb || /\bcolor\b/.test(n)
? d3.interpolateRgb
: d3.interpolate;
}
/**
* @param {number=} g
* @param {number=} b
*/
d3.rgb = function(r, g, b) {
return arguments.length == 1
? d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb)
: d3_rgb(~~r, ~~g, ~~b);
};
function d3_rgb(r, g, b) {
return {r: r, g: g, b: b, toString: d3_rgb_format};
}
/** @this d3_rgb */
function d3_rgb_format() {
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" + v.toString(16) : 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[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 = {
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"
};
for (var d3_rgb_name in d3_rgb_names) {
d3_rgb_names[d3_rgb_name] = d3_rgb_parse(
d3_rgb_names[d3_rgb_name],
d3_rgb,
d3_hsl_rgb);
}
/**
* @param {number=} s
* @param {number=} l
*/
d3.hsl = function(h, s, l) {
return arguments.length == 1
? d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl)
: d3_hsl(+h, +s, +l);
};
function d3_hsl(h, s, l) {
return {h: h, s: s, l: l, toString: d3_hsl_format};
}
/** @this d3_hsl */
function d3_hsl_format() {
return "hsl(" + this.h + "," + this.s * 100 + "%," + this.l * 100 + "%)";
}
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));
}
var d3_select = function(s, n) { return n.querySelector(s); },
d3_selectAll = function(s, n) { return d3_array(n.querySelectorAll(s)); };
// Use 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)); };
}
var d3_root = d3_selection([[document]]);
d3_root[0].parentNode = document.documentElement;
// TODO fast singleton implementation!
d3.select = function(selector) {
return typeof selector == "string"
? d3_root.select(selector)
: d3_selection([[selector]]); // assume node
};
d3.selectAll = function(selector) {
return typeof selector == "string"
? d3_root.selectAll(selector)
: d3_selection([d3_array(selector)]); // assume node[]
};
function d3_selection(groups) {
function select(select) {
var subgroups = [],
subgroup,
subnode,
group,
node;
for (var j = 0, m = groups.length; j < m; j++) {
group = groups[j];
subgroups.push(subgroup = []);
subgroup.parentNode = group.parentNode;
for (var i = 0, n = group.length; i < n; i++) {
if (node = group[i]) {
subgroup.push(subnode = select(node));
if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
} else {
subgroup.push(null);
}
}
}
return d3_selection(subgroups);
}
function selectAll(selectAll) {
var subgroups = [],
subgroup,
group,
node;
for (var j = 0, m = groups.length; j < m; j++) {
group = groups[j];
for (var i = 0, n = group.length; i < n; i++) {
if (node = group[i]) {
subgroups.push(subgroup = selectAll(node));
subgroup.parentNode = node;
}
}
}
return d3_selection(subgroups);
}
// TODO select(function)?
groups.select = function(selector) {
return select(function(node) {
return d3_select(selector, node);
});
};
// TODO selectAll(function)?
groups.selectAll = function(selector) {
return selectAll(function(node) {
return d3_selectAll(selector, node);
});
};
// TODO preserve null elements to maintain index?
groups.filter = function(filter) {
var subgroups = [],
subgroup,
group,
node;
for (var j = 0, m = groups.length; j < m; j++) {
group = groups[j];
subgroups.push(subgroup = []);
subgroup.parentNode = group.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);
};
groups.map = function(map) {
var group,
node;
for (var j = 0, m = groups.length; j < m; j++) {
group = groups[j];
for (var i = 0, n = group.length; i < n; i++) {
if (node = group[i]) node.__data__ = map.call(node, node.__data__, i);
}
}
return groups;
};
// TODO data(null) for clearing data?
groups.data = function(data, join) {
var enter = [],
update = [],
exit = [];
function bind(group, groupData) {
var i = 0,
n = group.length,
m = groupData.length,
n0 = Math.min(n, m),
n1 = Math.max(n, m),
updateNodes = [],
enterNodes = [],
exitNodes = [],
node,
nodeData;
if (join) {
var nodeByKey = {},
keys = [],
key,
j = groupData.length;
for (i = 0; i < n; i++) {
key = join.call(node = group[i], node.__data__, i);
if (key in nodeByKey) {
exitNodes[j++] = group[i]; // duplicate key
} else {
nodeByKey[key] = node;
}
keys.push(key);
}
for (i = 0; i < m; i++) {
node = nodeByKey[key = join.call(groupData, nodeData = groupData[i], i)];
if (node) {
node.__data__ = nodeData;
updateNodes[i] = node;
enterNodes[i] = exitNodes[i] = null;
} else {
enterNodes[i] = d3_selection_enterNode(nodeData);
updateNodes[i] = exitNodes[i] = null;
}
delete nodeByKey[key];
}
for (i = 0; i < n; i++) {
if (keys[i] in nodeByKey) {
exitNodes[i] = group[i];
}
}
} else {
for (; i < n0; i++) {
node = group[i];
nodeData = groupData[i];
if (node) {
node.__data__ = nodeData;
updateNodes[i] = node;
enterNodes[i] = exitNodes[i] = null;
} else {
enterNodes[i] = d3_selection_enterNode(nodeData);
updateNodes[i] = exitNodes[i] = null;
}
}
for (; i < m; i++) {
enterNodes[i] = d3_selection_enterNode(groupData[i]);
updateNodes[i] = exitNodes[i] = null;
}
for (; i < n1; i++) {
exitNodes[i] = group[i];
enterNodes[i] = updateNodes[i] = null;
}
}
enterNodes.parentNode
= updateNodes.parentNode
= exitNodes.parentNode
= group.parentNode;
enter.push(enterNodes);
update.push(updateNodes);
exit.push(exitNodes);
}
var i = -1,
n = groups.length,
group;
if (typeof data == "function") {
while (++i < n) {
bind(group = groups[i], data.call(group, group.parentNode.__data__, i));
}
} else {
while (++i < n) {
bind(group = groups[i], data);
}
}
var selection = d3_selection(update);
selection.enter = function() {
return d3_selectionEnter(enter);
};
selection.exit = function() {
return d3_selection(exit);
};
return selection;
};
// TODO mask forEach? or rename for eachData?
// TODO offer the same semantics for map, reduce, etc.?
groups.each = function(callback) {
for (var j = 0, m = groups.length; j < m; j++) {
var group = groups[j];
for (var i = 0, n = group.length; i < n; i++) {
var node = group[i];
if (node) callback.call(node, node.__data__, i);
}
}
return groups;
};
function first(callback) {
for (var j = 0, m = groups.length; j < m; j++) {
var group = groups[j];
for (var i = 0, n = group.length; i < n; i++) {
var node = group[i];
if (node) return callback.call(node, node.__data__, i);
}
}
return null;
}
groups.empty = function() {
return !first(function() { return true; });
};
groups.node = function() {
return first(function() { return this; });
};
groups.attr = function(name, value) {
name = d3.ns.qualify(name);
// If no value is specified, return the first value.
if (arguments.length < 2) {
return first(name.local
? function() { return this.getAttributeNS(name.space, name.local); }
: function() { return this.getAttribute(name); });
}
/** @this {Element} */
function attrNull() {
this.removeAttribute(name);
}
/** @this {Element} */
function attrNullNS() {
this.removeAttributeNS(name.space, name.local);
}
/** @this {Element} */
function attrConstant() {
this.setAttribute(name, value);
}
/** @this {Element} */
function attrConstantNS() {
this.setAttributeNS(name.space, name.local, value);
}
/** @this {Element} */
function attrFunction() {
var x = value.apply(this, arguments);
if (x == null) this.removeAttribute(name);
else this.setAttribute(name, x);
}
/** @this {Element} */
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 groups.each(value == null
? (name.local ? attrNullNS : attrNull) : (typeof value == "function"
? (name.local ? attrFunctionNS : attrFunction)
: (name.local ? attrConstantNS : attrConstant)));
};
groups.classed = function(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) {
return first(function() {
re.lastIndex = 0;
return re.test(this.className);
});
}
/** @this {Element} */
function classedAdd() {
var classes = this.className;
re.lastIndex = 0;
if (!re.test(classes)) {
this.className = d3_collapse(classes + " " + name);
}
}
/** @this {Element} */
function classedRemove() {
var classes = d3_collapse(this.className.replace(re, " "));
this.className = classes.length ? classes : null;
}
/** @this {Element} */
function classedFunction() {
(value.apply(this, arguments)
? classedAdd
: classedRemove).call(this);
}
return groups.each(typeof value == "function"
? classedFunction : value
? classedAdd
: classedRemove);
};
groups.style = function(name, value, priority) {
if (arguments.length < 3) priority = "";
// If no value is specified, return the first value.
if (arguments.length < 2) {
return first(function() {
return window.getComputedStyle(this, null).getPropertyValue(name);
});
}
/** @this {Element} */
function styleNull() {
this.style.removeProperty(name);
}
/** @this {Element} */
function styleConstant() {
this.style.setProperty(name, value, priority);
}
/** @this {Element} */
function styleFunction() {
var x = value.apply(this, arguments);
if (x == null) this.style.removeProperty(name);
else this.style.setProperty(name, x, priority);
}
return groups.each(value == null
? styleNull : (typeof value == "function"
? styleFunction : styleConstant));
};
groups.property = function(name, value) {
name = d3.ns.qualify(name);
// If no value is specified, return the first value.
if (arguments.length < 2) {
return first(function() {
return this[name];
});
}
/** @this {Element} */
function propertyNull() {
delete this[name];
}
/** @this {Element} */
function propertyConstant() {
this[name] = value;
}
/** @this {Element} */
function propertyFunction() {
var x = value.apply(this, arguments);
if (x == null) delete this[name];
else this[name] = x;
}
return groups.each(value == null
? propertyNull : (typeof value == "function"
? propertyFunction : propertyConstant));
};
groups.text = function(value) {
// If no value is specified, return the first value.
if (arguments.length < 1) {
return first(function() {
return this.textContent;
});
}
/** @this {Element} */
function textConstant() {
this.textContent = value;
}
/** @this {Element} */
function textFunction() {
this.textContent = value.apply(this, arguments);
}
return groups.each(typeof value == "function"
? textFunction : textConstant);
};
groups.html = function(value) {
// If no value is specified, return the first value.
if (arguments.length < 1) {
return first(function() {
return this.innerHTML;
});
}
/** @this {Element} */
function htmlConstant() {
this.innerHTML = value;
}
/** @this {Element} */
function htmlFunction() {
this.innerHTML = value.apply(this, arguments);
}
return groups.each(typeof value == "function"
? htmlFunction : htmlConstant);
};
// TODO append(node)?
// TODO append(function)?
groups.append = function(name) {
name = d3.ns.qualify(name);
function append(node) {
return node.appendChild(document.createElement(name));
}
function appendNS(node) {
return node.appendChild(document.createElementNS(name.space, name.local));
}
return select(name.local ? appendNS : append);
};
// TODO insert(node, function)?
// TODO insert(function, string)?
// TODO insert(function, function)?
groups.insert = function(name, before) {
name = d3.ns.qualify(name);
function insert(node) {
return node.insertBefore(
document.createElement(name),
d3_select(before, node));
}
function insertNS(node) {
return node.insertBefore(
document.createElementNS(name.space, name.local),
d3_select(before, node));
}
return select(name.local ? insertNS : insert);
};
// TODO remove(selector)?
// TODO remove(node)?
// TODO remove(function)?
groups.remove = function() {
return groups.each(function() {
var parent = this.parentNode;
if (parent) parent.removeChild(this);
});
};
groups.sort = function(comparator) {
comparator = d3_selection_comparator.apply(this, arguments);
for (var j = 0, m = groups.length; j < m; j++) {
var group = groups[j];
group.sort(comparator);
for (var i = 1, n = group.length, prev = group[0]; i < n; i++) {
var node = group[i];
if (node) {
if (prev) prev.parentNode.insertBefore(node, prev.nextSibling);
prev = node;
}
}
}
return groups;
};
// type can be namespaced, e.g., "click.foo"
// listener can be null for removal
groups.on = function(type, listener, capture) {
if (arguments.length < 3) capture = false;
// parse the type specifier
var i = type.indexOf("."),
typo = i == -1 ? type : type.substring(0, i),
name = "__on" + type;
// remove the old event listener, and add the new event listener
return groups.each(function(d, i) {
if (this[name]) this.removeEventListener(typo, this[name], capture);
if (listener) this.addEventListener(typo, this[name] = l, capture);
// wrapped event listener that preserves d, i
function l(e) {
var o = d3.event; // Events can be reentrant (e.g., focus).
d3.event = e;
try {
listener.call(this, d, i);
} finally {
d3.event = o;
}
}
});
};
// TODO slice?
groups.transition = function() {
return d3_transition(groups);
};
groups.call = d3_call;
return groups;
}
function d3_selectionEnter(groups) {
function select(select) {
var subgroups = [],
subgroup,
subnode,
group,
node;
for (var j = 0, m = groups.length; j < m; j++) {
group = groups[j];
subgroups.push(subgroup = []);
subgroup.parentNode = group.parentNode;
for (var i = 0, n = group.length; i < n; i++) {
if (node = group[i]) {
subgroup.push(subnode = select(group.parentNode));
subnode.__data__ = node.__data__;
} else {
subgroup.push(null);
}
}
}
return d3_selection(subgroups);
}
// TODO append(node)?
// TODO append(function)?
groups.append = function(name) {
name = d3.ns.qualify(name);
function append(node) {
return node.appendChild(document.createElement(name));
}
function appendNS(node) {
return node.appendChild(document.createElementNS(name.space, name.local));
}
return select(name.local ? appendNS : append);
};
// TODO insert(node, function)?
// TODO insert(function, string)?
// TODO insert(function, function)?
groups.insert = function(name, before) {
name = d3.ns.qualify(name);
function insert(node) {
return node.insertBefore(
document.createElement(name),
d3_select(before, node));
}
function insertNS(node) {
return node.insertBefore(
document.createElementNS(name.space, name.local),
d3_select(before, node));
}
return select(name.local ? insertNS : insert);
};
return groups;
}
function d3_selection_comparator(comparator) {
if (!arguments.length) comparator = d3.ascending;
return function(a, b) {
return comparator(a && a.__data__, b && b.__data__);
};
}
function d3_selection_enterNode(data) {
return {__data__: data};
}
d3.transition = d3_root.transition;
var d3_transitionId = 0,
d3_transitionInheritId = 0;
function d3_transition(groups) {
var transition = {},
transitionId = d3_transitionInheritId || ++d3_transitionId,
tweens = {},
interpolators = [],
remove = false,
event = d3.dispatch("start", "end"),
stage = [],
delay = [],
duration = [],
durationMax,
ease = d3.ease("cubic-in-out");
//
// Be careful with concurrent transitions!
//
// Say transition A causes an exit. Before A finishes, a transition B is
// created, and believes it only needs to do an update, because the elements
// haven't been removed yet (which happens at the very end of the exit
// transition).
//
// Even worse, what if either transition A or B has a staggered delay? Then,
// some elements may be removed, while others remain. Transition B does not
// know to enter the elements because they were still present at the time
// the transition B was created (but not yet started).
//
// To prevent such confusion, we only trigger end events for transitions if
// the transition ending is the only one scheduled for the given element.
// Similarly, we only allow one transition to be active for any given
// element, so that concurrent transitions do not overwrite each other's
// properties.
//
// TODO Support transition namespaces, so that transitions can proceed
// concurrently on the same element if needed. Hopefully, this is rare!
//
groups.each(function() {
(this.__transition__ || (this.__transition__ = {})).owner = transitionId;
});
function step(elapsed) {
var clear = true,
k = -1;
groups.each(function() {
if (stage[++k] == 2) return; // ended
var t = (elapsed - delay[k]) / duration[k],
tx = this.__transition__,
te, // ease(t)
tk, // tween key
ik = interpolators[k];
// Check if the (un-eased) time is outside the range [0,1].
if (t < 1) {
clear = false;
if (t < 0) return;
} else {
t = 1;
}
// Determine the stage of this transition.
// 0 - Not yet started.
// 1 - In progress.
// 2 - Ended.
if (stage[k]) {
if (!tx || tx.active != transitionId) {
stage[k] = 2;
return;
}
} else if (!tx || tx.active > transitionId) {
stage[k] = 2;
return;
} else {
stage[k] = 1;
event.start.dispatch.apply(this, arguments);
ik = interpolators[k] = {};
tx.active = transitionId;
for (tk in tweens) {
if (te = tweens[tk].apply(this, arguments)) {
ik[tk] = te;
}
}
}
// Apply the interpolators!
te = ease(t);
for (tk in ik) ik[tk].call(this, te);
// Handle ending transitions.
if (t == 1) {
stage[k] = 2;
if (tx.active == transitionId) {
var owner = tx.owner;
if (owner == transitionId) {
delete this.__transition__;
if (remove) this.parentNode.removeChild(this);
}
d3_transitionInheritId = transitionId;
event.end.dispatch.apply(this, arguments);
d3_transitionInheritId = 0;
tx.owner = owner;
}
}
});
return clear;
}
transition.delay = function(value) {
var delayMin = Infinity,
k = -1;
if (typeof value == "function") {
groups.each(function(d, i) {
var x = delay[++k] = +value.apply(this, arguments);
if (x < delayMin) delayMin = x;
});
} else {
delayMin = +value;
groups.each(function(d, i) {
delay[++k] = delayMin;
});
}
d3_timer(step, delayMin);
return transition;
};
transition.duration = function(value) {
var k = -1;
if (typeof value == "function") {
durationMax = 0;
groups.each(function(d, i) {
var x = duration[++k] = +value.apply(this, arguments);
if (x > durationMax) durationMax = x;
});
} else {
durationMax = +value;
groups.each(function(d, i) {
duration[++k] = durationMax;
});
}
return transition;
};
transition.ease = function(value) {
ease = typeof value == "function" ? value : d3.ease.apply(d3, arguments);
return transition;
};
transition.attrTween = function(name, tween) {
/** @this {Element} */
function attrTween(d, i) {
var f = tween.call(this, d, i, this.getAttribute(name));
return function(t) {
this.setAttribute(name, f(t));
};
}
/** @this {Element} */
function attrTweenNS(d, i) {
var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
return function(t) {
this.setAttributeNS(name.space, name.local, f(t));
};
}
tweens["attr." + name] = name.local ? attrTweenNS : attrTween;
return transition;
};
transition.attr = function(name, value) {
return transition.attrTween(name, d3_transitionTween(value));
};
transition.styleTween = function(name, tween, priority) {
if (arguments.length < 3) priority = null;
/** @this {Element} */
function styleTween(d, i) {
var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
return function(t) {
this.style.setProperty(name, f(t), priority);
};
}
tweens["style." + name] = styleTween;
return transition;
};
transition.style = function(name, value, priority) {
if (arguments.length < 3) priority = null;
return transition.styleTween(name, d3_transitionTween(value), priority);
};
transition.text = function(value) {
tweens.text = function(d, i) {
this.textContent = typeof value == "function"
? value.call(this, d, i)
: value;
};
return transition;
};
transition.select = function(query) {
var k, t = d3_transition(groups.select(query)).ease(ease);
k = -1; t.delay(function(d, i) { return delay[++k]; });
k = -1; t.duration(function(d, i) { return duration[++k]; });
return t;
};
transition.selectAll = function(query) {
var k, t = d3_transition(groups.selectAll(query)).ease(ease);
k = -1; t.delay(function(d, i) { return delay[i ? k : ++k]; })
k = -1; t.duration(function(d, i) { return duration[i ? k : ++k]; });
return t;
};
transition.remove = function() {
remove = true;
return transition;
};
transition.each = function(type, listener) {
event[type].add(listener);
return transition;
};
transition.call = d3_call;
return transition.delay(0).duration(250);
}
function d3_transitionTween(b) {
return typeof b == "function"
? function(d, i, a) { return d3.interpolate(a, String(b.call(this, d, i))); }
: (b = String(b), function(d, i, a) { return d3.interpolate(a, b); });
}
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) {
d3_timer(callback, 0);
};
function d3_timer(callback, delay) {
var now = Date.now(),
found = false,
t0,
t1 = d3_timer_queue;
if (!isFinite(delay)) return;
// See if the callback's already in the queue.
while (t1) {
if (t1.callback === callback) {
t1.then = now;
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: now,
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(),
t0 = null,
t1 = d3_timer_queue;
while (t1) {
elapsed = now - t1.then;
if (elapsed > t1.delay) t1.flush = t1.callback(elapsed);
t1 = (t0 = 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);
}
}
// 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.scale = {};
d3.scale.linear = function() {
var x0 = 0,
x1 = 1,
y0 = 0,
y1 = 1,
kx = 1, // 1 / (x1 - x0)
ky = 1, // (x1 - x0) / (y1 - y0)
interpolate = d3.interpolate,
i = interpolate(y0, y1),
clamp = false;
function scale(x) {
x = (x - x0) * kx;
return i(clamp ? Math.max(0, Math.min(1, x)) : x);
}
// Note: requires range is coercible to number!
scale.invert = function(y) {
return (y - y0) * ky + x0;
};
scale.domain = function(x) {
if (!arguments.length) return [x0, x1];
x0 = +x[0];
x1 = +x[1];
kx = 1 / (x1 - x0);
ky = (x1 - x0) / (y1 - y0);
return scale;
};
scale.range = function(x) {
if (!arguments.length) return [y0, y1];
y0 = x[0];
y1 = x[1];
ky = (x1 - x0) / (y1 - y0);
i = interpolate(y0, y1);
return scale;
};
scale.rangeRound = function(x) {
return scale.range(x).interpolate(d3.interpolateRound);
};
scale.clamp = function(x) {
if (!arguments.length) return clamp;
clamp = x;
return scale;
};
scale.interpolate = function(x) {
if (!arguments.length) return interpolate;
i = (interpolate = x)(y0, y1);
return scale;
};
// TODO Dates? Ugh.
function tickRange(m) {
var start = Math.min(x0, x1),
stop = Math.max(x0, x1),
span = stop - start,
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.
return {
start: Math.ceil(start / step) * step,
stop: Math.floor(stop / step) * step + step * .5, // inclusive
step: step
};
}
scale.ticks = function(m) {
var range = tickRange(m);
return d3.range(range.start, range.stop, range.step);
};
scale.tickFormat = function(m) {
var n = Math.max(0, -Math.floor(Math.log(tickRange(m).step) / Math.LN10 + .01));
return d3.format(",." + n + "f");
};
return scale;
};
d3.scale.log = function() {
var linear = d3.scale.linear(),
log = d3_scale_log,
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] || x[1]) < 0 ? d3_scale_logn : d3_scale_log;
pow = log.pow;
linear.domain(x.map(log));
return scale;
};
scale.range = d3.rebind(scale, linear.range);
scale.rangeRound = d3.rebind(scale, linear.rangeRound);
scale.interpolate = d3.rebind(scale, linear.interpolate);
scale.clamp = d3.rebind(scale, linear.clamp);
scale.ticks = function() {
var d = linear.domain(),
ticks = [];
if (d.every(isFinite)) {
var i = Math.floor(d[0]),
j = Math.ceil(d[1]),
u = pow(d[0]),
v = pow(d[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() {
return function(d) { return d.toPrecision(1); };
};
return scale;
};
function d3_scale_log(x) {
return Math.log(x) / Math.LN10;
}
function d3_scale_logn(x) {
return -Math.log(-x) / Math.LN10;
}
d3_scale_log.pow = function(x) {
return Math.pow(10, x);
};
d3_scale_logn.pow = function(x) {
return -Math.pow(10, -x);
};
d3.scale.pow = function() {
var linear = d3.scale.linear(),
tick = d3.scale.linear(), // TODO better tick formatting...
exponent = 1,
powp = Number,
powb = powp;
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);
var pow = (x[0] || x[1]) < 0 ? d3_scale_pown : d3_scale_pow;
powp = pow(exponent);
powb = pow(1 / exponent);
linear.domain(x.map(powp));
tick.domain(x);
return scale;
};
scale.range = d3.rebind(scale, linear.range);
scale.rangeRound = d3.rebind(scale, linear.rangeRound);
scale.interpolate = d3.rebind(scale, linear.interpolate);
scale.clamp = d3.rebind(scale, linear.clamp);
scale.ticks = tick.ticks;
scale.tickFormat = tick.tickFormat;
scale.exponent = function(x) {
if (!arguments.length) return exponent;
var domain = scale.domain();
exponent = x;
return scale.domain(domain);
};
return scale;
};
function d3_scale_pow(e) {
return function(x) {
return Math.pow(x, e);
};
}
function d3_scale_pown(e) {
return function(x) {
return -Math.pow(-x, e);
};
}
d3.scale.sqrt = function() {
return d3.scale.pow().exponent(.5);
};
d3.scale.ordinal = function() {
var domain = [],
index = {},
range = [],
rangeBand = 0;
function scale(x) {
var i = x in index ? index[x] : (index[x] = domain.push(x) - 1);
return range[i % range.length];
}
scale.domain = function(x) {
if (!arguments.length) return domain;
domain = x;
index = {};
var i = -1, j = -1, n = domain.length; while (++i < n) {
x = domain[i];
if (!(x in index)) index[x] = ++j;
}
return scale;
};
scale.range = function(x) {
if (!arguments.length) return range;
range = 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 = domain.length == 1
? [(start + stop) / 2]
: d3.range(start + step * padding / 2, stop + step / 2, step);
rangeBand = 0;
return scale;
};
scale.rangeBands = function(x, padding) {
if (arguments.length < 2) padding = 0;
var start = x[0],
stop = x[1],
step = (stop - start) / (domain.length + padding);
range = d3.range(start + step * padding, stop, step);
rangeBand = step * (1 - padding);
return scale;
};
scale.rangeRoundBands = function(x, padding) {
if (arguments.length < 2) padding = 0;
var start = x[0],
stop = x[1],
diff = stop - start,
step = Math.floor(diff / (domain.length + padding)),
err = diff - (domain.length - padding) * step;
range = d3.range(start + Math.round(err / 2), stop, step);
rangeBand = Math.round(step * (1 - padding));
return scale;
};
scale.rangeBand = function() {
return rangeBand;
};
return scale;
};
/*
* 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() {
var domain = [],
range = [],
thresholds = [];
function rescale() {
var i = -1,
n = thresholds.length = range.length,
k = domain.length / n;
while (++i < n) thresholds[i] = domain[~~(i * k)];
}
function quantile(value) {
if (isNaN(value = +value)) return NaN;
var low = 0, high = thresholds.length - 1;
while (low <= high) {
var mid = (low + high) >> 1, midValue = thresholds[mid];
if (midValue < value) low = mid + 1;
else if (midValue > value) high = mid - 1;
else return mid;
}
return high < 0 ? 0 : high;
}
function scale(x) {
return range[quantile(x)];
}
scale.domain = function(x) {
if (!arguments.length) return domain;
domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending);
rescale();
return scale;
};
scale.range = function(x) {
if (!arguments.length) return range;
range = x;
rescale();
return scale;
};
scale.quantiles = function() {
return thresholds;
};
return scale;
};
d3.scale.quantize = function() {
var x0 = 0,
x1 = 1,
kx = 2,
i = 1,
range = [0, 1];
function scale(x) {
return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
}
scale.domain = function(x) {
if (!arguments.length) return [x0, x1];
x0 = x[0];
x1 = x[1];
kx = range.length / (x1 - x0);
return scale;
};
scale.range = function(x) {
if (!arguments.length) return range;
range = x;
kx = range.length / (x1 - x0);
i = range.length - 1;
return scale;
};
return scale;
};
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,
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 1,1 0," + (-r0)
+ "A" + r0 + "," + r0 + " 0 1,1 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;
}
d3.svg.line = function() {
var x = d3_svg_lineX,
y = d3_svg_lineY,
interpolate = "linear",
interpolator = d3_svg_lineInterpolators[interpolate],
tension = .7;
function line(d) {
return d.length < 1 ? null
: "M" + interpolator(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;
interpolator = d3_svg_lineInterpolators[interpolate = v];
return line;
};
line.tension = function(v) {
if (!arguments.length) return tension;
tension = v;
return line;
};
return line;
};
// 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];
}
// The various interpolators supported by the `line` class.
var d3_svg_lineInterpolators = {
"linear": d3_svg_lineLinear,
"step-before": d3_svg_lineStepBefore,
"step-after": d3_svg_lineStepAfter,
"basis": d3_svg_lineBasis,
"basis-closed": d3_svg_lineBasisClosed,
"cardinal": d3_svg_lineCardinal,
"cardinal-closed": d3_svg_lineCardinalClosed
};
// Linear interpolation; generates "L" commands.
function d3_svg_lineLinear(points) {
var path = [],
i = 0,
n = points.length,
p = points[0];
path.push(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 path = [],
i = 0,
n = points.length,
p = points[0];
path.push(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 path = [],
i = 0,
n = points.length,
p = points[0];
path.push(p[0], ",", p[1]);
while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
return path.join("");
}
// 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;
}
// Open B-spline interpolation; generates "C" commands.
function d3_svg_lineBasis(points) {
if (points.length < 3) return d3_svg_lineLinear(points);
var path = [],
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.push(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("");
}
// 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("");
}
// 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));
}
d3.svg.area = function() {
var x = d3_svg_lineX,
y0 = d3_svg_areaY0,
y1 = d3_svg_lineY,
interpolate = "linear",
interpolator = d3_svg_lineInterpolators[interpolate],
tension = .7;
// TODO horizontal / vertical / radial orientation
function area(d) {
return d.length < 1 ? null
: "M" + interpolator(d3_svg_linePoints(this, d, x, y1), tension)
+ "L" + interpolator(d3_svg_linePoints(this, d, x, y0).reverse(), tension)
+ "Z";
}
area.x = function(v) {
if (!arguments.length) return x;
x = v;
return area;
};
area.y0 = function(v) {
if (!arguments.length) return y0;
y0 = v;
return area;
};
area.y1 = function(v) {
if (!arguments.length) return y1;
y1 = v;
return area;
};
area.interpolate = function(v) {
if (!arguments.length) return interpolate;
interpolator = d3_svg_lineInterpolators[interpolate = v];
return area;
};
area.tension = function(v) {
if (!arguments.length) return tension;
tension = v;
return area;
};
return area;
};
function d3_svg_areaY0() {
return 0;
}
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) + (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)
+ 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) {
return "A" + r + "," + r + " 0 0,1 " + 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.mouse = function(container) {
var point = (container.ownerSVGElement || container).createSVGPoint();
if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
var svg = d3.select(document.body)
.append("svg: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 = d3.event.pageX;
point.y = d3.event.pageY;
} else {
point.x = d3.event.clientX;
point.y = d3.event.clientY;
}
point = point.matrixTransform(container.getScreenCTM().inverse());
return [point.x, point.y];
};
// https://bugs.webkit.org/show_bug.cgi?id=44083
var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
d3.svg.symbol = function() {
var type = d3_svg_symbolType,
size = d3_svg_symbolSize;
function symbol(d, i) {
return (d3_svg_symbols[type.call(this, d, i)]
|| d3_svg_symbols.circle)
(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;
};
// TODO cross-diagonal?
d3.svg.symbolTypes = [
"circle",
"cross",
"diamond",
"square",
"triangle-down",
"triangle-up"
];
function d3_svg_symbolSize() {
return 64;
}
function d3_svg_symbolType() {
return "circle";
}
var d3_svg_symbols = {
"circle": function(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";
},
"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";
}
};
var d3_svg_symbolSqrt3 = Math.sqrt(3),
d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
})()