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raphael-1.5.2.js
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/*!
* Raphael 1.5.2 - JavaScript Vector Library
*
* Copyright (c) 2010 Dmitry Baranovskiy (http://raphaeljs.com)
* Licensed under the MIT (http://raphaeljs.com/license.html) license.
*/
(function () {
function R() {
if (R.is(arguments[0], array)) {
var a = arguments[0],
cnv = create[apply](R, a.splice(0, 3 + R.is(a[0], nu))),
res = cnv.set();
for (var i = 0, ii = a[length]; i < ii; i++) {
var j = a[i] || {};
elements[has](j.type) && res[push](cnv[j.type]().attr(j));
}
return res;
}
return create[apply](R, arguments);
}
R.version = "1.5.2";
var separator = /[, ]+/,
elements = {circle: 1, rect: 1, path: 1, ellipse: 1, text: 1, image: 1},
formatrg = /\{(\d+)\}/g,
proto = "prototype",
has = "hasOwnProperty",
doc = document,
win = window,
oldRaphael = {
was: Object[proto][has].call(win, "Raphael"),
is: win.Raphael
},
Paper = function () {
this.customAttributes = {};
},
paperproto,
appendChild = "appendChild",
apply = "apply",
concat = "concat",
supportsTouch = "createTouch" in doc,
E = "",
S = " ",
Str = String,
split = "split",
events = "click dblclick mousedown mousemove mouseout mouseover mouseup touchstart touchmove touchend orientationchange touchcancel gesturestart gesturechange gestureend"[split](S),
touchMap = {
mousedown: "touchstart",
mousemove: "touchmove",
mouseup: "touchend"
},
join = "join",
length = "length",
lowerCase = Str[proto].toLowerCase,
math = Math,
mmax = math.max,
mmin = math.min,
abs = math.abs,
pow = math.pow,
PI = math.PI,
nu = "number",
string = "string",
array = "array",
toString = "toString",
fillString = "fill",
objectToString = Object[proto][toString],
paper = {},
push = "push",
ISURL = /^url\(['"]?([^\)]+?)['"]?\)$/i,
colourRegExp = /^\s*((#[a-f\d]{6})|(#[a-f\d]{3})|rgba?\(\s*([\d\.]+%?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?)%?\s*\)|hsba?\(\s*([\d\.]+(?:deg|\xb0|%)?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?)%?\s*\)|hsla?\(\s*([\d\.]+(?:deg|\xb0|%)?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?)%?\s*\))\s*$/i,
isnan = {"NaN": 1, "Infinity": 1, "-Infinity": 1},
bezierrg = /^(?:cubic-)?bezier\(([^,]+),([^,]+),([^,]+),([^\)]+)\)/,
round = math.round,
setAttribute = "setAttribute",
toFloat = parseFloat,
toInt = parseInt,
ms = " progid:DXImageTransform.Microsoft",
upperCase = Str[proto].toUpperCase,
availableAttrs = {blur: 0, "clip-rect": "0 0 1e9 1e9", cursor: "default", cx: 0, cy: 0, fill: "#fff", "fill-opacity": 1, font: '10px "Arial"', "font-family": '"Arial"', "font-size": "10", "font-style": "normal", "font-weight": 400, gradient: 0, height: 0, href: "http://raphaeljs.com/", opacity: 1, path: "M0,0", r: 0, rotation: 0, rx: 0, ry: 0, scale: "1 1", src: "", stroke: "#000", "stroke-dasharray": "", "stroke-linecap": "butt", "stroke-linejoin": "butt", "stroke-miterlimit": 0, "stroke-opacity": 1, "stroke-width": 1, target: "_blank", "text-anchor": "middle", title: "Raphael", translation: "0 0", width: 0, x: 0, y: 0},
availableAnimAttrs = {along: "along", blur: nu, "clip-rect": "csv", cx: nu, cy: nu, fill: "colour", "fill-opacity": nu, "font-size": nu, height: nu, opacity: nu, path: "path", r: nu, rotation: "csv", rx: nu, ry: nu, scale: "csv", stroke: "colour", "stroke-opacity": nu, "stroke-width": nu, translation: "csv", width: nu, x: nu, y: nu},
rp = "replace",
animKeyFrames= /^(from|to|\d+%?)$/,
commaSpaces = /\s*,\s*/,
hsrg = {hs: 1, rg: 1},
p2s = /,?([achlmqrstvxz]),?/gi,
pathCommand = /([achlmqstvz])[\s,]*((-?\d*\.?\d*(?:e[-+]?\d+)?\s*,?\s*)+)/ig,
pathValues = /(-?\d*\.?\d*(?:e[-+]?\d+)?)\s*,?\s*/ig,
radial_gradient = /^r(?:\(([^,]+?)\s*,\s*([^\)]+?)\))?/,
sortByKey = function (a, b) {
return a.key - b.key;
};
R.type = (win.SVGAngle || doc.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1") ? "SVG" : "VML");
if (R.type == "VML") {
var d = doc.createElement("div"),
b;
d.innerHTML = '<v:shape adj="1"/>';
b = d.firstChild;
b.style.behavior = "url(#default#VML)";
if (!(b && typeof b.adj == "object")) {
return R.type = null;
}
d = null;
}
R.svg = !(R.vml = R.type == "VML");
Paper[proto] = R[proto];
paperproto = Paper[proto];
R._id = 0;
R._oid = 0;
R.fn = {};
R.is = function (o, type) {
type = lowerCase.call(type);
if (type == "finite") {
return !isnan[has](+o);
}
return (type == "null" && o === null) ||
(type == typeof o) ||
(type == "object" && o === Object(o)) ||
(type == "array" && Array.isArray && Array.isArray(o)) ||
objectToString.call(o).slice(8, -1).toLowerCase() == type;
};
R.angle = function (x1, y1, x2, y2, x3, y3) {
if (x3 == null) {
var x = x1 - x2,
y = y1 - y2;
if (!x && !y) {
return 0;
}
return ((x < 0) * 180 + math.atan(-y / -x) * 180 / PI + 360) % 360;
} else {
return R.angle(x1, y1, x3, y3) - R.angle(x2, y2, x3, y3);
}
};
R.rad = function (deg) {
return deg % 360 * PI / 180;
};
R.deg = function (rad) {
return rad * 180 / PI % 360;
};
R.snapTo = function (values, value, tolerance) {
tolerance = R.is(tolerance, "finite") ? tolerance : 10;
if (R.is(values, array)) {
var i = values.length;
while (i--) if (abs(values[i] - value) <= tolerance) {
return values[i];
}
} else {
values = +values;
var rem = value % values;
if (rem < tolerance) {
return value - rem;
}
if (rem > values - tolerance) {
return value - rem + values;
}
}
return value;
};
function createUUID() {
// http://www.ietf.org/rfc/rfc4122.txt
var s = [],
i = 0;
for (; i < 32; i++) {
s[i] = (~~(math.random() * 16))[toString](16);
}
s[12] = 4; // bits 12-15 of the time_hi_and_version field to 0010
s[16] = ((s[16] & 3) | 8)[toString](16); // bits 6-7 of the clock_seq_hi_and_reserved to 01
return "r-" + s[join]("");
}
R.setWindow = function (newwin) {
win = newwin;
doc = win.document;
};
// colour utilities
var toHex = function (color) {
if (R.vml) {
// http://dean.edwards.name/weblog/2009/10/convert-any-colour-value-to-hex-in-msie/
var trim = /^\s+|\s+$/g;
var bod;
try {
var docum = new ActiveXObject("htmlfile");
docum.write("<body>");
docum.close();
bod = docum.body;
} catch(e) {
bod = createPopup().document.body;
}
var range = bod.createTextRange();
toHex = cacher(function (color) {
try {
bod.style.color = Str(color)[rp](trim, E);
var value = range.queryCommandValue("ForeColor");
value = ((value & 255) << 16) | (value & 65280) | ((value & 16711680) >>> 16);
return "#" + ("000000" + value[toString](16)).slice(-6);
} catch(e) {
return "none";
}
});
} else {
var i = doc.createElement("i");
i.title = "Rapha\xebl Colour Picker";
i.style.display = "none";
doc.body[appendChild](i);
toHex = cacher(function (color) {
i.style.color = color;
return doc.defaultView.getComputedStyle(i, E).getPropertyValue("color");
});
}
return toHex(color);
},
hsbtoString = function () {
return "hsb(" + [this.h, this.s, this.b] + ")";
},
hsltoString = function () {
return "hsl(" + [this.h, this.s, this.l] + ")";
},
rgbtoString = function () {
return this.hex;
};
R.hsb2rgb = function (h, s, b, o) {
if (R.is(h, "object") && "h" in h && "s" in h && "b" in h) {
b = h.b;
s = h.s;
h = h.h;
o = h.o;
}
return R.hsl2rgb(h, s, b / 2, o);
};
R.hsl2rgb = function (h, s, l, o) {
if (R.is(h, "object") && "h" in h && "s" in h && "l" in h) {
l = h.l;
s = h.s;
h = h.h;
}
if (h > 1 || s > 1 || l > 1) {
h /= 360;
s /= 100;
l /= 100;
}
var rgb = {},
channels = ["r", "g", "b"],
t2, t1, t3, r, g, b;
if (!s) {
rgb = {
r: l,
g: l,
b: l
};
} else {
if (l < .5) {
t2 = l * (1 + s);
} else {
t2 = l + s - l * s;
}
t1 = 2 * l - t2;
for (var i = 0; i < 3; i++) {
t3 = h + 1 / 3 * -(i - 1);
t3 < 0 && t3++;
t3 > 1 && t3--;
if (t3 * 6 < 1) {
rgb[channels[i]] = t1 + (t2 - t1) * 6 * t3;
} else if (t3 * 2 < 1) {
rgb[channels[i]] = t2;
} else if (t3 * 3 < 2) {
rgb[channels[i]] = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
} else {
rgb[channels[i]] = t1;
}
}
}
rgb.r *= 255;
rgb.g *= 255;
rgb.b *= 255;
rgb.hex = "#" + (16777216 | rgb.b | (rgb.g << 8) | (rgb.r << 16)).toString(16).slice(1);
R.is(o, "finite") && (rgb.opacity = o);
rgb.toString = rgbtoString;
return rgb;
};
R.rgb2hsb = function (red, green, blue) {
if (green == null && R.is(red, "object") && "r" in red && "g" in red && "b" in red) {
blue = red.b;
green = red.g;
red = red.r;
}
if (green == null && R.is(red, string)) {
var clr = R.getRGB(red);
red = clr.r;
green = clr.g;
blue = clr.b;
}
if (red > 1 || green > 1 || blue > 1) {
red /= 255;
green /= 255;
blue /= 255;
}
var max = mmax(red, green, blue),
min = mmin(red, green, blue),
hue,
saturation,
brightness = max;
if (min == max) {
return {h: 0, s: 0, b: max, toString: hsbtoString};
} else {
var delta = (max - min);
saturation = delta / max;
if (red == max) {
hue = (green - blue) / delta;
} else if (green == max) {
hue = 2 + ((blue - red) / delta);
} else {
hue = 4 + ((red - green) / delta);
}
hue /= 6;
hue < 0 && hue++;
hue > 1 && hue--;
}
return {h: hue, s: saturation, b: brightness, toString: hsbtoString};
};
R.rgb2hsl = function (red, green, blue) {
if (green == null && R.is(red, "object") && "r" in red && "g" in red && "b" in red) {
blue = red.b;
green = red.g;
red = red.r;
}
if (green == null && R.is(red, string)) {
var clr = R.getRGB(red);
red = clr.r;
green = clr.g;
blue = clr.b;
}
if (red > 1 || green > 1 || blue > 1) {
red /= 255;
green /= 255;
blue /= 255;
}
var max = mmax(red, green, blue),
min = mmin(red, green, blue),
h,
s,
l = (max + min) / 2,
hsl;
if (min == max) {
hsl = {h: 0, s: 0, l: l};
} else {
var delta = max - min;
s = l < .5 ? delta / (max + min) : delta / (2 - max - min);
if (red == max) {
h = (green - blue) / delta;
} else if (green == max) {
h = 2 + (blue - red) / delta;
} else {
h = 4 + (red - green) / delta;
}
h /= 6;
h < 0 && h++;
h > 1 && h--;
hsl = {h: h, s: s, l: l};
}
hsl.toString = hsltoString;
return hsl;
};
R._path2string = function () {
return this.join(",")[rp](p2s, "$1");
};
function cacher(f, scope, postprocessor) {
function newf() {
var arg = Array[proto].slice.call(arguments, 0),
args = arg[join]("\u25ba"),
cache = newf.cache = newf.cache || {},
count = newf.count = newf.count || [];
if (cache[has](args)) {
return postprocessor ? postprocessor(cache[args]) : cache[args];
}
count[length] >= 1e3 && delete cache[count.shift()];
count[push](args);
cache[args] = f[apply](scope, arg);
return postprocessor ? postprocessor(cache[args]) : cache[args];
}
return newf;
}
R.getRGB = cacher(function (colour) {
if (!colour || !!((colour = Str(colour)).indexOf("-") + 1)) {
return {r: -1, g: -1, b: -1, hex: "none", error: 1};
}
if (colour == "none") {
return {r: -1, g: -1, b: -1, hex: "none"};
}
!(hsrg[has](colour.toLowerCase().substring(0, 2)) || colour.charAt() == "#") && (colour = toHex(colour));
var res,
red,
green,
blue,
opacity,
t,
values,
rgb = colour.match(colourRegExp);
if (rgb) {
if (rgb[2]) {
blue = toInt(rgb[2].substring(5), 16);
green = toInt(rgb[2].substring(3, 5), 16);
red = toInt(rgb[2].substring(1, 3), 16);
}
if (rgb[3]) {
blue = toInt((t = rgb[3].charAt(3)) + t, 16);
green = toInt((t = rgb[3].charAt(2)) + t, 16);
red = toInt((t = rgb[3].charAt(1)) + t, 16);
}
if (rgb[4]) {
values = rgb[4][split](commaSpaces);
red = toFloat(values[0]);
values[0].slice(-1) == "%" && (red *= 2.55);
green = toFloat(values[1]);
values[1].slice(-1) == "%" && (green *= 2.55);
blue = toFloat(values[2]);
values[2].slice(-1) == "%" && (blue *= 2.55);
rgb[1].toLowerCase().slice(0, 4) == "rgba" && (opacity = toFloat(values[3]));
values[3] && values[3].slice(-1) == "%" && (opacity /= 100);
}
if (rgb[5]) {
values = rgb[5][split](commaSpaces);
red = toFloat(values[0]);
values[0].slice(-1) == "%" && (red *= 2.55);
green = toFloat(values[1]);
values[1].slice(-1) == "%" && (green *= 2.55);
blue = toFloat(values[2]);
values[2].slice(-1) == "%" && (blue *= 2.55);
(values[0].slice(-3) == "deg" || values[0].slice(-1) == "\xb0") && (red /= 360);
rgb[1].toLowerCase().slice(0, 4) == "hsba" && (opacity = toFloat(values[3]));
values[3] && values[3].slice(-1) == "%" && (opacity /= 100);
return R.hsb2rgb(red, green, blue, opacity);
}
if (rgb[6]) {
values = rgb[6][split](commaSpaces);
red = toFloat(values[0]);
values[0].slice(-1) == "%" && (red *= 2.55);
green = toFloat(values[1]);
values[1].slice(-1) == "%" && (green *= 2.55);
blue = toFloat(values[2]);
values[2].slice(-1) == "%" && (blue *= 2.55);
(values[0].slice(-3) == "deg" || values[0].slice(-1) == "\xb0") && (red /= 360);
rgb[1].toLowerCase().slice(0, 4) == "hsla" && (opacity = toFloat(values[3]));
values[3] && values[3].slice(-1) == "%" && (opacity /= 100);
return R.hsl2rgb(red, green, blue, opacity);
}
rgb = {r: red, g: green, b: blue};
rgb.hex = "#" + (16777216 | blue | (green << 8) | (red << 16)).toString(16).slice(1);
R.is(opacity, "finite") && (rgb.opacity = opacity);
return rgb;
}
return {r: -1, g: -1, b: -1, hex: "none", error: 1};
}, R);
R.getColor = function (value) {
var start = this.getColor.start = this.getColor.start || {h: 0, s: 1, b: value || .75},
rgb = this.hsb2rgb(start.h, start.s, start.b);
start.h += .075;
if (start.h > 1) {
start.h = 0;
start.s -= .2;
start.s <= 0 && (this.getColor.start = {h: 0, s: 1, b: start.b});
}
return rgb.hex;
};
R.getColor.reset = function () {
delete this.start;
};
// path utilities
R.parsePathString = cacher(function (pathString) {
if (!pathString) {
return null;
}
var paramCounts = {a: 7, c: 6, h: 1, l: 2, m: 2, q: 4, s: 4, t: 2, v: 1, z: 0},
data = [];
if (R.is(pathString, array) && R.is(pathString[0], array)) { // rough assumption
data = pathClone(pathString);
}
if (!data[length]) {
Str(pathString)[rp](pathCommand, function (a, b, c) {
var params = [],
name = lowerCase.call(b);
c[rp](pathValues, function (a, b) {
b && params[push](+b);
});
if (name == "m" && params[length] > 2) {
data[push]([b][concat](params.splice(0, 2)));
name = "l";
b = b == "m" ? "l" : "L";
}
while (params[length] >= paramCounts[name]) {
data[push]([b][concat](params.splice(0, paramCounts[name])));
if (!paramCounts[name]) {
break;
}
}
});
}
data[toString] = R._path2string;
return data;
});
R.findDotsAtSegment = function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) {
var t1 = 1 - t,
x = pow(t1, 3) * p1x + pow(t1, 2) * 3 * t * c1x + t1 * 3 * t * t * c2x + pow(t, 3) * p2x,
y = pow(t1, 3) * p1y + pow(t1, 2) * 3 * t * c1y + t1 * 3 * t * t * c2y + pow(t, 3) * p2y,
mx = p1x + 2 * t * (c1x - p1x) + t * t * (c2x - 2 * c1x + p1x),
my = p1y + 2 * t * (c1y - p1y) + t * t * (c2y - 2 * c1y + p1y),
nx = c1x + 2 * t * (c2x - c1x) + t * t * (p2x - 2 * c2x + c1x),
ny = c1y + 2 * t * (c2y - c1y) + t * t * (p2y - 2 * c2y + c1y),
ax = (1 - t) * p1x + t * c1x,
ay = (1 - t) * p1y + t * c1y,
cx = (1 - t) * c2x + t * p2x,
cy = (1 - t) * c2y + t * p2y,
alpha = (90 - math.atan((mx - nx) / (my - ny)) * 180 / PI);
(mx > nx || my < ny) && (alpha += 180);
return {x: x, y: y, m: {x: mx, y: my}, n: {x: nx, y: ny}, start: {x: ax, y: ay}, end: {x: cx, y: cy}, alpha: alpha};
};
var pathDimensions = cacher(function (path) {
if (!path) {
return {x: 0, y: 0, width: 0, height: 0};
}
path = path2curve(path);
var x = 0,
y = 0,
X = [],
Y = [],
p;
for (var i = 0, ii = path[length]; i < ii; i++) {
p = path[i];
if (p[0] == "M") {
x = p[1];
y = p[2];
X[push](x);
Y[push](y);
} else {
var dim = curveDim(x, y, p[1], p[2], p[3], p[4], p[5], p[6]);
X = X[concat](dim.min.x, dim.max.x);
Y = Y[concat](dim.min.y, dim.max.y);
x = p[5];
y = p[6];
}
}
var xmin = mmin[apply](0, X),
ymin = mmin[apply](0, Y);
return {
x: xmin,
y: ymin,
width: mmax[apply](0, X) - xmin,
height: mmax[apply](0, Y) - ymin
};
}),
pathClone = function (pathArray) {
var res = [];
if (!R.is(pathArray, array) || !R.is(pathArray && pathArray[0], array)) { // rough assumption
pathArray = R.parsePathString(pathArray);
}
for (var i = 0, ii = pathArray[length]; i < ii; i++) {
res[i] = [];
for (var j = 0, jj = pathArray[i][length]; j < jj; j++) {
res[i][j] = pathArray[i][j];
}
}
res[toString] = R._path2string;
return res;
},
pathToRelative = cacher(function (pathArray) {
if (!R.is(pathArray, array) || !R.is(pathArray && pathArray[0], array)) { // rough assumption
pathArray = R.parsePathString(pathArray);
}
var res = [],
x = 0,
y = 0,
mx = 0,
my = 0,
start = 0;
if (pathArray[0][0] == "M") {
x = pathArray[0][1];
y = pathArray[0][2];
mx = x;
my = y;
start++;
res[push](["M", x, y]);
}
for (var i = start, ii = pathArray[length]; i < ii; i++) {
var r = res[i] = [],
pa = pathArray[i];
if (pa[0] != lowerCase.call(pa[0])) {
r[0] = lowerCase.call(pa[0]);
switch (r[0]) {
case "a":
r[1] = pa[1];
r[2] = pa[2];
r[3] = pa[3];
r[4] = pa[4];
r[5] = pa[5];
r[6] = +(pa[6] - x).toFixed(3);
r[7] = +(pa[7] - y).toFixed(3);
break;
case "v":
r[1] = +(pa[1] - y).toFixed(3);
break;
case "m":
mx = pa[1];
my = pa[2];
default:
for (var j = 1, jj = pa[length]; j < jj; j++) {
r[j] = +(pa[j] - ((j % 2) ? x : y)).toFixed(3);
}
}
} else {
r = res[i] = [];
if (pa[0] == "m") {
mx = pa[1] + x;
my = pa[2] + y;
}
for (var k = 0, kk = pa[length]; k < kk; k++) {
res[i][k] = pa[k];
}
}
var len = res[i][length];
switch (res[i][0]) {
case "z":
x = mx;
y = my;
break;
case "h":
x += +res[i][len - 1];
break;
case "v":
y += +res[i][len - 1];
break;
default:
x += +res[i][len - 2];
y += +res[i][len - 1];
}
}
res[toString] = R._path2string;
return res;
}, 0, pathClone),
pathToAbsolute = cacher(function (pathArray) {
if (!R.is(pathArray, array) || !R.is(pathArray && pathArray[0], array)) { // rough assumption
pathArray = R.parsePathString(pathArray);
}
var res = [],
x = 0,
y = 0,
mx = 0,
my = 0,
start = 0;
if (pathArray[0][0] == "M") {
x = +pathArray[0][1];
y = +pathArray[0][2];
mx = x;
my = y;
start++;
res[0] = ["M", x, y];
}
for (var i = start, ii = pathArray[length]; i < ii; i++) {
var r = res[i] = [],
pa = pathArray[i];
if (pa[0] != upperCase.call(pa[0])) {
r[0] = upperCase.call(pa[0]);
switch (r[0]) {
case "A":
r[1] = pa[1];
r[2] = pa[2];
r[3] = pa[3];
r[4] = pa[4];
r[5] = pa[5];
r[6] = +(pa[6] + x);
r[7] = +(pa[7] + y);
break;
case "V":
r[1] = +pa[1] + y;
break;
case "H":
r[1] = +pa[1] + x;
break;
case "M":
mx = +pa[1] + x;
my = +pa[2] + y;
default:
for (var j = 1, jj = pa[length]; j < jj; j++) {
r[j] = +pa[j] + ((j % 2) ? x : y);
}
}
} else {
for (var k = 0, kk = pa[length]; k < kk; k++) {
res[i][k] = pa[k];
}
}
switch (r[0]) {
case "Z":
x = mx;
y = my;
break;
case "H":
x = r[1];
break;
case "V":
y = r[1];
break;
case "M":
mx = res[i][res[i][length] - 2];
my = res[i][res[i][length] - 1];
default:
x = res[i][res[i][length] - 2];
y = res[i][res[i][length] - 1];
}
}
res[toString] = R._path2string;
return res;
}, null, pathClone),
l2c = function (x1, y1, x2, y2) {
return [x1, y1, x2, y2, x2, y2];
},
q2c = function (x1, y1, ax, ay, x2, y2) {
var _13 = 1 / 3,
_23 = 2 / 3;
return [
_13 * x1 + _23 * ax,
_13 * y1 + _23 * ay,
_13 * x2 + _23 * ax,
_13 * y2 + _23 * ay,
x2,
y2
];
},
a2c = function (x1, y1, rx, ry, angle, large_arc_flag, sweep_flag, x2, y2, recursive) {
// for more information of where this math came from visit:
// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
var _120 = PI * 120 / 180,
rad = PI / 180 * (+angle || 0),
res = [],
xy,
rotate = cacher(function (x, y, rad) {
var X = x * math.cos(rad) - y * math.sin(rad),
Y = x * math.sin(rad) + y * math.cos(rad);
return {x: X, y: Y};
});
if (!recursive) {
xy = rotate(x1, y1, -rad);
x1 = xy.x;
y1 = xy.y;
xy = rotate(x2, y2, -rad);
x2 = xy.x;
y2 = xy.y;
var cos = math.cos(PI / 180 * angle),
sin = math.sin(PI / 180 * angle),
x = (x1 - x2) / 2,
y = (y1 - y2) / 2;
var h = (x * x) / (rx * rx) + (y * y) / (ry * ry);
if (h > 1) {
h = math.sqrt(h);
rx = h * rx;
ry = h * ry;
}
var rx2 = rx * rx,
ry2 = ry * ry,
k = (large_arc_flag == sweep_flag ? -1 : 1) *
math.sqrt(abs((rx2 * ry2 - rx2 * y * y - ry2 * x * x) / (rx2 * y * y + ry2 * x * x))),
cx = k * rx * y / ry + (x1 + x2) / 2,
cy = k * -ry * x / rx + (y1 + y2) / 2,
f1 = math.asin(((y1 - cy) / ry).toFixed(9)),
f2 = math.asin(((y2 - cy) / ry).toFixed(9));
f1 = x1 < cx ? PI - f1 : f1;
f2 = x2 < cx ? PI - f2 : f2;
f1 < 0 && (f1 = PI * 2 + f1);
f2 < 0 && (f2 = PI * 2 + f2);
if (sweep_flag && f1 > f2) {
f1 = f1 - PI * 2;
}
if (!sweep_flag && f2 > f1) {
f2 = f2 - PI * 2;
}
} else {
f1 = recursive[0];
f2 = recursive[1];
cx = recursive[2];
cy = recursive[3];
}
var df = f2 - f1;
if (abs(df) > _120) {
var f2old = f2,
x2old = x2,
y2old = y2;
f2 = f1 + _120 * (sweep_flag && f2 > f1 ? 1 : -1);
x2 = cx + rx * math.cos(f2);
y2 = cy + ry * math.sin(f2);
res = a2c(x2, y2, rx, ry, angle, 0, sweep_flag, x2old, y2old, [f2, f2old, cx, cy]);
}
df = f2 - f1;
var c1 = math.cos(f1),
s1 = math.sin(f1),
c2 = math.cos(f2),
s2 = math.sin(f2),
t = math.tan(df / 4),
hx = 4 / 3 * rx * t,
hy = 4 / 3 * ry * t,
m1 = [x1, y1],
m2 = [x1 + hx * s1, y1 - hy * c1],
m3 = [x2 + hx * s2, y2 - hy * c2],
m4 = [x2, y2];
m2[0] = 2 * m1[0] - m2[0];
m2[1] = 2 * m1[1] - m2[1];
if (recursive) {
return [m2, m3, m4][concat](res);
} else {
res = [m2, m3, m4][concat](res)[join]()[split](",");
var newres = [];
for (var i = 0, ii = res[length]; i < ii; i++) {
newres[i] = i % 2 ? rotate(res[i - 1], res[i], rad).y : rotate(res[i], res[i + 1], rad).x;
}
return newres;
}
},
findDotAtSegment = function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) {
var t1 = 1 - t;
return {
x: pow(t1, 3) * p1x + pow(t1, 2) * 3 * t * c1x + t1 * 3 * t * t * c2x + pow(t, 3) * p2x,
y: pow(t1, 3) * p1y + pow(t1, 2) * 3 * t * c1y + t1 * 3 * t * t * c2y + pow(t, 3) * p2y
};
},
curveDim = cacher(function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y) {
var a = (c2x - 2 * c1x + p1x) - (p2x - 2 * c2x + c1x),
b = 2 * (c1x - p1x) - 2 * (c2x - c1x),
c = p1x - c1x,
t1 = (-b + math.sqrt(b * b - 4 * a * c)) / 2 / a,
t2 = (-b - math.sqrt(b * b - 4 * a * c)) / 2 / a,
y = [p1y, p2y],
x = [p1x, p2x],
dot;
abs(t1) > "1e12" && (t1 = .5);
abs(t2) > "1e12" && (t2 = .5);
if (t1 > 0 && t1 < 1) {
dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t1);
x[push](dot.x);
y[push](dot.y);
}
if (t2 > 0 && t2 < 1) {
dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t2);
x[push](dot.x);
y[push](dot.y);
}
a = (c2y - 2 * c1y + p1y) - (p2y - 2 * c2y + c1y);
b = 2 * (c1y - p1y) - 2 * (c2y - c1y);
c = p1y - c1y;
t1 = (-b + math.sqrt(b * b - 4 * a * c)) / 2 / a;
t2 = (-b - math.sqrt(b * b - 4 * a * c)) / 2 / a;
abs(t1) > "1e12" && (t1 = .5);
abs(t2) > "1e12" && (t2 = .5);
if (t1 > 0 && t1 < 1) {
dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t1);
x[push](dot.x);
y[push](dot.y);
}
if (t2 > 0 && t2 < 1) {
dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t2);
x[push](dot.x);
y[push](dot.y);
}
return {
min: {x: mmin[apply](0, x), y: mmin[apply](0, y)},
max: {x: mmax[apply](0, x), y: mmax[apply](0, y)}
};
}),
path2curve = cacher(function (path, path2) {
var p = pathToAbsolute(path),
p2 = path2 && pathToAbsolute(path2),
attrs = {x: 0, y: 0, bx: 0, by: 0, X: 0, Y: 0, qx: null, qy: null},
attrs2 = {x: 0, y: 0, bx: 0, by: 0, X: 0, Y: 0, qx: null, qy: null},
processPath = function (path, d) {
var nx, ny;
if (!path) {
return ["C", d.x, d.y, d.x, d.y, d.x, d.y];
}
!(path[0] in {T:1, Q:1}) && (d.qx = d.qy = null);
switch (path[0]) {
case "M":
d.X = path[1];
d.Y = path[2];
break;
case "A":
path = ["C"][concat](a2c[apply](0, [d.x, d.y][concat](path.slice(1))));
break;
case "S":
nx = d.x + (d.x - (d.bx || d.x));
ny = d.y + (d.y - (d.by || d.y));
path = ["C", nx, ny][concat](path.slice(1));
break;
case "T":
d.qx = d.x + (d.x - (d.qx || d.x));
d.qy = d.y + (d.y - (d.qy || d.y));
path = ["C"][concat](q2c(d.x, d.y, d.qx, d.qy, path[1], path[2]));
break;
case "Q":
d.qx = path[1];
d.qy = path[2];
path = ["C"][concat](q2c(d.x, d.y, path[1], path[2], path[3], path[4]));
break;
case "L":
path = ["C"][concat](l2c(d.x, d.y, path[1], path[2]));
break;
case "H":
path = ["C"][concat](l2c(d.x, d.y, path[1], d.y));
break;
case "V":
path = ["C"][concat](l2c(d.x, d.y, d.x, path[1]));
break;
case "Z":
path = ["C"][concat](l2c(d.x, d.y, d.X, d.Y));
break;
}
return path;
},
fixArc = function (pp, i) {
if (pp[i][length] > 7) {
pp[i].shift();
var pi = pp[i];
while (pi[length]) {
pp.splice(i++, 0, ["C"][concat](pi.splice(0, 6)));
}
pp.splice(i, 1);
ii = mmax(p[length], p2 && p2[length] || 0);
}
},
fixM = function (path1, path2, a1, a2, i) {
if (path1 && path2 && path1[i][0] == "M" && path2[i][0] != "M") {
path2.splice(i, 0, ["M", a2.x, a2.y]);
a1.bx = 0;
a1.by = 0;
a1.x = path1[i][1];
a1.y = path1[i][2];
ii = mmax(p[length], p2 && p2[length] || 0);
}
};
for (var i = 0, ii = mmax(p[length], p2 && p2[length] || 0); i < ii; i++) {
p[i] = processPath(p[i], attrs);
fixArc(p, i);
p2 && (p2[i] = processPath(p2[i], attrs2));
p2 && fixArc(p2, i);
fixM(p, p2, attrs, attrs2, i);
fixM(p2, p, attrs2, attrs, i);
var seg = p[i],
seg2 = p2 && p2[i],
seglen = seg[length],
seg2len = p2 && seg2[length];
attrs.x = seg[seglen - 2];
attrs.y = seg[seglen - 1];
attrs.bx = toFloat(seg[seglen - 4]) || attrs.x;
attrs.by = toFloat(seg[seglen - 3]) || attrs.y;
attrs2.bx = p2 && (toFloat(seg2[seg2len - 4]) || attrs2.x);
attrs2.by = p2 && (toFloat(seg2[seg2len - 3]) || attrs2.y);
attrs2.x = p2 && seg2[seg2len - 2];
attrs2.y = p2 && seg2[seg2len - 1];
}
return p2 ? [p, p2] : p;
}, null, pathClone),
parseDots = cacher(function (gradient) {
var dots = [];
for (var i = 0, ii = gradient[length]; i < ii; i++) {
var dot = {},
par = gradient[i].match(/^([^:]*):?([\d\.]*)/);
dot.color = R.getRGB(par[1]);
if (dot.color.error) {
return null;
}
dot.color = dot.color.hex;
par[2] && (dot.offset = par[2] + "%");
dots[push](dot);
}
for (i = 1, ii = dots[length] - 1; i < ii; i++) {
if (!dots[i].offset) {
var start = toFloat(dots[i - 1].offset || 0),
end = 0;
for (var j = i + 1; j < ii; j++) {
if (dots[j].offset) {
end = dots[j].offset;
break;
}
}
if (!end) {
end = 100;
j = ii;
}
end = toFloat(end);
var d = (end - start) / (j - i + 1);
for (; i < j; i++) {
start += d;
dots[i].offset = start + "%";
}
}
}
return dots;
}),
getContainer = function (x, y, w, h) {
var container;
if (R.is(x, string) || R.is(x, "object")) {
container = R.is(x, string) ? doc.getElementById(x) : x;
if (container.tagName) {
if (y == null) {