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two.js
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two.js
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/**
* two.js
* a two-dimensional drawing api meant for modern browsers. It is renderer
* agnostic enabling the same api for rendering in multiple contexts: webgl,
* canvas2d, and svg.
*
* Copyright (c) 2012 - 2017 jonobr1 / http://jonobr1.com
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
this.Two = (function(previousTwo) {
var root = typeof window != 'undefined' ? window : typeof global != 'undefined' ? global : null;
var toString = Object.prototype.toString;
var _ = {
// http://underscorejs.org/ • 1.8.3
_indexAmount: 0,
natural: {
slice: Array.prototype.slice,
indexOf: Array.prototype.indexOf,
keys: Object.keys,
bind: Function.prototype.bind,
create: Object.create
},
identity: function(value) {
return value;
},
isArguments: function(obj) {
return toString.call(obj) === '[object Arguments]';
},
isFunction: function(obj) {
return toString.call(obj) === '[object Function]';
},
isString: function(obj) {
return toString.call(obj) === '[object String]';
},
isNumber: function(obj) {
return toString.call(obj) === '[object Number]';
},
isDate: function(obj) {
return toString.call(obj) === '[object Date]';
},
isRegExp: function(obj) {
return toString.call(obj) === '[object RegExp]';
},
isError: function(obj) {
return toString.call(obj) === '[object Error]';
},
isFinite: function(obj) {
return isFinite(obj) && !isNaN(parseFloat(obj));
},
isNaN: function(obj) {
return _.isNumber(obj) && obj !== +obj;
},
isBoolean: function(obj) {
return obj === true || obj === false || toString.call(obj) === '[object Boolean]';
},
isNull: function(obj) {
return obj === null;
},
isUndefined: function(obj) {
return obj === void 0;
},
isEmpty: function(obj) {
if (obj == null) return true;
if (isArrayLike && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;
return _.keys(obj).length === 0;
},
isElement: function(obj) {
return !!(obj && obj.nodeType === 1);
},
isArray: Array.isArray || function(obj) {
return toString.call(obj) === '[object Array]';
},
isObject: function(obj) {
var type = typeof obj;
return type === 'function' || type === 'object' && !!obj;
},
toArray: function(obj) {
if (!obj) {
return [];
}
if (_.isArray(obj)) {
return slice.call(obj);
}
if (isArrayLike(obj)) {
return _.map(obj, _.identity);
}
return _.values(obj);
},
range: function(start, stop, step) {
if (stop == null) {
stop = start || 0;
start = 0;
}
step = step || 1;
var length = Math.max(Math.ceil((stop - start) / step), 0);
var range = Array(length);
for (var idx = 0; idx < length; idx++, start += step) {
range[idx] = start;
}
return range;
},
indexOf: function(list, item) {
if (!!_.natural.indexOf) {
return _.natural.indexOf.call(list, item);
}
for (var i = 0; i < list.length; i++) {
if (list[i] === item) {
return i;
}
}
return -1;
},
has: function(obj, key) {
return obj != null && hasOwnProperty.call(obj, key);
},
bind: function(func, ctx) {
var natural = _.natural.bind;
if (natural && func.bind === natural) {
return natural.apply(func, slice.call(arguments, 1));
}
var args = slice.call(arguments, 2);
return function() {
func.apply(ctx, args);
};
},
extend: function(base) {
var sources = slice.call(arguments, 1);
for (var i = 0; i < sources.length; i++) {
var obj = sources[i];
for (var k in obj) {
base[k] = obj[k];
}
}
return base;
},
defaults: function(base) {
var sources = slice.call(arguments, 1);
for (var i = 0; i < sources.length; i++) {
var obj = sources[i];
for (var k in obj) {
if (base[k] === void 0) {
base[k] = obj[k];
}
}
}
return base;
},
keys: function(obj) {
if (!_.isObject(obj)) {
return [];
}
if (_.natural.keys) {
return _.natural.keys(obj);
}
var keys = [];
for (var k in obj) {
if (_.has(obj, k)) {
keys.push(k);
}
}
return keys;
},
values: function(obj) {
var keys = _.keys(obj);
var values = [];
for (var i = 0; i < keys.length; i++) {
var k = keys[i];
values.push(obj[k]);
}
return values;
},
each: function(obj, iteratee, context) {
var ctx = context || this;
var keys = !isArrayLike(obj) && _.keys(obj);
var length = (keys || obj).length;
for (var i = 0; i < length; i++) {
var k = keys ? keys[i] : i;
iteratee.call(ctx, obj[k], k, obj);
}
return obj;
},
map: function(obj, iteratee, context) {
var ctx = context || this;
var keys = !isArrayLike(obj) && _.keys(obj);
var length = (keys || obj).length;
var result = [];
for (var i = 0; i < length; i++) {
var k = keys ? keys[i] : i;
result[i] = iteratee.call(ctx, obj[k], k, obj);
}
return result;
},
once: function(func) {
var init = false;
return function() {
if (!!init) {
return func;
}
init = true;
return func.apply(this, arguments);
}
},
after: function(times, func) {
return function() {
while (--times < 1) {
return func.apply(this, arguments);
}
}
},
uniqueId: function(prefix) {
var id = ++_._indexAmount + '';
return prefix ? prefix + id : id;
}
};
/**
* Constants
*/
var sin = Math.sin,
cos = Math.cos,
atan2 = Math.atan2,
sqrt = Math.sqrt,
round = Math.round,
abs = Math.abs,
PI = Math.PI,
TWO_PI = PI * 2,
HALF_PI = PI / 2,
pow = Math.pow,
min = Math.min,
max = Math.max;
/**
* Localized variables
*/
var count = 0;
var slice = _.natural.slice;
var perf = ((root.performance && root.performance.now) ? root.performance : Date);
var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
var getLength = function(obj) {
return obj == null ? void 0 : obj['length'];
};
var isArrayLike = function(collection) {
var length = getLength(collection);
return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;
};
/**
* Cross browser dom events.
*/
var dom = {
temp: (root.document ? root.document.createElement('div') : {}),
hasEventListeners: _.isFunction(root.addEventListener),
bind: function(elem, event, func, bool) {
if (this.hasEventListeners) {
elem.addEventListener(event, func, !!bool);
} else {
elem.attachEvent('on' + event, func);
}
return dom;
},
unbind: function(elem, event, func, bool) {
if (dom.hasEventListeners) {
elem.removeEventListeners(event, func, !!bool);
} else {
elem.detachEvent('on' + event, func);
}
return dom;
},
getRequestAnimationFrame: function() {
var lastTime = 0;
var vendors = ['ms', 'moz', 'webkit', 'o'];
var request = root.requestAnimationFrame, cancel;
if(!request) {
for (var i = 0; i < vendors.length; i++) {
request = root[vendors[i] + 'RequestAnimationFrame'] || request;
cancel = root[vendors[i] + 'CancelAnimationFrame']
|| root[vendors[i] + 'CancelRequestAnimationFrame'] || cancel;
}
request = request || function(callback, element) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var id = root.setTimeout(function() { callback(currTime + timeToCall); }, timeToCall);
lastTime = currTime + timeToCall;
return id;
};
// cancel = cancel || function(id) {
// clearTimeout(id);
// };
}
request.init = _.once(loop);
return request;
}
};
/**
* @class
*/
var Two = root.Two = function(options) {
// Determine what Renderer to use and setup a scene.
var params = _.defaults(options || {}, {
fullscreen: false,
width: 640,
height: 480,
type: Two.Types.svg,
autostart: false
});
_.each(params, function(v, k) {
if (k === 'fullscreen' || k === 'autostart') {
return;
}
this[k] = v;
}, this);
// Specified domElement overrides type declaration only if the element does not support declared renderer type.
if (_.isElement(params.domElement)) {
var tagName = params.domElement.tagName.toLowerCase();
// TODO: Reconsider this if statement's logic.
if (!/^(CanvasRenderer-canvas|WebGLRenderer-canvas|SVGRenderer-svg)$/.test(this.type+'-'+tagName)) {
this.type = Two.Types[tagName];
}
}
this.renderer = new Two[this.type](this);
Two.Utils.setPlaying.call(this, params.autostart);
this.frameCount = 0;
if (params.fullscreen) {
var fitted = _.bind(fitToWindow, this);
_.extend(document.body.style, {
overflow: 'hidden',
margin: 0,
padding: 0,
top: 0,
left: 0,
right: 0,
bottom: 0,
position: 'fixed'
});
_.extend(this.renderer.domElement.style, {
display: 'block',
top: 0,
left: 0,
right: 0,
bottom: 0,
position: 'fixed'
});
dom.bind(root, 'resize', fitted);
fitted();
} else if (!_.isElement(params.domElement)) {
this.renderer.setSize(params.width, params.height, this.ratio);
this.width = params.width;
this.height = params.height;
}
this.scene = this.renderer.scene;
Two.Instances.push(this);
raf.init();
};
_.extend(Two, {
/**
* Access to root in other files.
*/
root: root,
/**
* Primitive
*/
Array: root.Float32Array || Array,
Types: {
webgl: 'WebGLRenderer',
svg: 'SVGRenderer',
canvas: 'CanvasRenderer'
},
Version: 'v0.7.0',
Identifier: 'two_',
Properties: {
hierarchy: 'hierarchy',
demotion: 'demotion'
},
Events: {
play: 'play',
pause: 'pause',
update: 'update',
render: 'render',
resize: 'resize',
change: 'change',
remove: 'remove',
insert: 'insert',
order: 'order',
load: 'load'
},
Commands: {
move: 'M',
line: 'L',
curve: 'C',
close: 'Z'
},
Resolution: 8,
Instances: [],
noConflict: function() {
root.Two = previousTwo;
return this;
},
uniqueId: function() {
var id = count;
count++;
return id;
},
Utils: _.extend(_, {
performance: perf,
defineProperty: function(property) {
var object = this;
var secret = '_' + property;
var flag = '_flag' + property.charAt(0).toUpperCase() + property.slice(1);
Object.defineProperty(object, property, {
enumerable: true,
get: function() {
return this[secret];
},
set: function(v) {
this[secret] = v;
this[flag] = true;
}
});
},
/**
* Release an arbitrary class' events from the two.js corpus and recurse
* through its children and or vertices.
*/
release: function(obj) {
if (!_.isObject(obj)) {
return;
}
if (_.isFunction(obj.unbind)) {
obj.unbind();
}
if (obj.vertices) {
if (_.isFunction(obj.vertices.unbind)) {
obj.vertices.unbind();
}
_.each(obj.vertices, function(v) {
if (_.isFunction(v.unbind)) {
v.unbind();
}
});
}
if (obj.children) {
_.each(obj.children, function(obj) {
Two.Utils.release(obj);
});
}
},
xhr: function(path, callback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', path);
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
callback(xhr.responseText);
}
};
xhr.send();
return xhr;
},
Curve: {
CollinearityEpsilon: pow(10, -30),
RecursionLimit: 16,
CuspLimit: 0,
Tolerance: {
distance: 0.25,
angle: 0,
epsilon: 0.01
},
// Lookup tables for abscissas and weights with values for n = 2 .. 16.
// As values are symmetric, only store half of them and adapt algorithm
// to factor in symmetry.
abscissas: [
[ 0.5773502691896257645091488],
[0,0.7745966692414833770358531],
[ 0.3399810435848562648026658,0.8611363115940525752239465],
[0,0.5384693101056830910363144,0.9061798459386639927976269],
[ 0.2386191860831969086305017,0.6612093864662645136613996,0.9324695142031520278123016],
[0,0.4058451513773971669066064,0.7415311855993944398638648,0.9491079123427585245261897],
[ 0.1834346424956498049394761,0.5255324099163289858177390,0.7966664774136267395915539,0.9602898564975362316835609],
[0,0.3242534234038089290385380,0.6133714327005903973087020,0.8360311073266357942994298,0.9681602395076260898355762],
[ 0.1488743389816312108848260,0.4333953941292471907992659,0.6794095682990244062343274,0.8650633666889845107320967,0.9739065285171717200779640],
[0,0.2695431559523449723315320,0.5190961292068118159257257,0.7301520055740493240934163,0.8870625997680952990751578,0.9782286581460569928039380],
[ 0.1252334085114689154724414,0.3678314989981801937526915,0.5873179542866174472967024,0.7699026741943046870368938,0.9041172563704748566784659,0.9815606342467192506905491],
[0,0.2304583159551347940655281,0.4484927510364468528779129,0.6423493394403402206439846,0.8015780907333099127942065,0.9175983992229779652065478,0.9841830547185881494728294],
[ 0.1080549487073436620662447,0.3191123689278897604356718,0.5152486363581540919652907,0.6872929048116854701480198,0.8272013150697649931897947,0.9284348836635735173363911,0.9862838086968123388415973],
[0,0.2011940939974345223006283,0.3941513470775633698972074,0.5709721726085388475372267,0.7244177313601700474161861,0.8482065834104272162006483,0.9372733924007059043077589,0.9879925180204854284895657],
[ 0.0950125098376374401853193,0.2816035507792589132304605,0.4580167776572273863424194,0.6178762444026437484466718,0.7554044083550030338951012,0.8656312023878317438804679,0.9445750230732325760779884,0.9894009349916499325961542]
],
weights: [
[1],
[0.8888888888888888888888889,0.5555555555555555555555556],
[0.6521451548625461426269361,0.3478548451374538573730639],
[0.5688888888888888888888889,0.4786286704993664680412915,0.2369268850561890875142640],
[0.4679139345726910473898703,0.3607615730481386075698335,0.1713244923791703450402961],
[0.4179591836734693877551020,0.3818300505051189449503698,0.2797053914892766679014678,0.1294849661688696932706114],
[0.3626837833783619829651504,0.3137066458778872873379622,0.2223810344533744705443560,0.1012285362903762591525314],
[0.3302393550012597631645251,0.3123470770400028400686304,0.2606106964029354623187429,0.1806481606948574040584720,0.0812743883615744119718922],
[0.2955242247147528701738930,0.2692667193099963550912269,0.2190863625159820439955349,0.1494513491505805931457763,0.0666713443086881375935688],
[0.2729250867779006307144835,0.2628045445102466621806889,0.2331937645919904799185237,0.1862902109277342514260976,0.1255803694649046246346943,0.0556685671161736664827537],
[0.2491470458134027850005624,0.2334925365383548087608499,0.2031674267230659217490645,0.1600783285433462263346525,0.1069393259953184309602547,0.0471753363865118271946160],
[0.2325515532308739101945895,0.2262831802628972384120902,0.2078160475368885023125232,0.1781459807619457382800467,0.1388735102197872384636018,0.0921214998377284479144218,0.0404840047653158795200216],
[0.2152638534631577901958764,0.2051984637212956039659241,0.1855383974779378137417166,0.1572031671581935345696019,0.1215185706879031846894148,0.0801580871597602098056333,0.0351194603317518630318329],
[0.2025782419255612728806202,0.1984314853271115764561183,0.1861610000155622110268006,0.1662692058169939335532009,0.1395706779261543144478048,0.1071592204671719350118695,0.0703660474881081247092674,0.0307532419961172683546284],
[0.1894506104550684962853967,0.1826034150449235888667637,0.1691565193950025381893121,0.1495959888165767320815017,0.1246289712555338720524763,0.0951585116824927848099251,0.0622535239386478928628438,0.0271524594117540948517806]
]
},
/**
* Account for high dpi rendering.
* http://www.html5rocks.com/en/tutorials/canvas/hidpi/
*/
devicePixelRatio: root.devicePixelRatio || 1,
getBackingStoreRatio: function(ctx) {
return ctx.webkitBackingStorePixelRatio ||
ctx.mozBackingStorePixelRatio ||
ctx.msBackingStorePixelRatio ||
ctx.oBackingStorePixelRatio ||
ctx.backingStorePixelRatio || 1;
},
getRatio: function(ctx) {
return Two.Utils.devicePixelRatio / getBackingStoreRatio(ctx);
},
/**
* Properly defer play calling until after all objects
* have been updated with their newest styles.
*/
setPlaying: function(b) {
this.playing = !!b;
return this;
},
/**
* Return the computed matrix of a nested object.
* TODO: Optimize traversal.
*/
getComputedMatrix: function(object, matrix) {
matrix = (matrix && matrix.identity()) || new Two.Matrix();
var parent = object, matrices = [];
while (parent && parent._matrix) {
matrices.push(parent._matrix);
parent = parent.parent;
}
matrices.reverse();
_.each(matrices, function(m) {
var e = m.elements;
matrix.multiply(
e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7], e[8], e[9]);
});
return matrix;
},
deltaTransformPoint: function(matrix, x, y) {
var dx = x * matrix.a + y * matrix.c + 0;
var dy = x * matrix.b + y * matrix.d + 0;
return new Two.Vector(dx, dy);
},
/**
* https://gist.github.com/2052247
*/
decomposeMatrix: function(matrix) {
// calculate delta transform point
var px = Two.Utils.deltaTransformPoint(matrix, 0, 1);
var py = Two.Utils.deltaTransformPoint(matrix, 1, 0);
// calculate skew
var skewX = ((180 / Math.PI) * Math.atan2(px.y, px.x) - 90);
var skewY = ((180 / Math.PI) * Math.atan2(py.y, py.x));
return {
translateX: matrix.e,
translateY: matrix.f,
scaleX: Math.sqrt(matrix.a * matrix.a + matrix.b * matrix.b),
scaleY: Math.sqrt(matrix.c * matrix.c + matrix.d * matrix.d),
skewX: skewX,
skewY: skewY,
rotation: skewX // rotation is the same as skew x
};
},
/**
* Walk through item properties and pick the ones of interest.
* Will try to resolve styles applied via CSS
*
* TODO: Reverse calculate `Two.Gradient`s for fill / stroke
* of any given path.
*/
applySvgAttributes: function(node, elem) {
var attributes = {}, styles = {}, i, key, value, attr;
// Not available in non browser environments
if (getComputedStyle) {
// Convert CSSStyleDeclaration to a normal object
var computedStyles = getComputedStyle(node);
i = computedStyles.length;
while (i--) {
key = computedStyles[i];
value = computedStyles[key];
// Gecko returns undefined for unset properties
// Webkit returns the default value
if (value !== undefined) {
styles[key] = value;
}
}
}
// Convert NodeMap to a normal object
i = node.attributes.length;
while (i--) {
attr = node.attributes[i];
attributes[attr.nodeName] = attr.value;
}
// Getting the correct opacity is a bit tricky, since SVG path elements don't
// support opacity as an attribute, but you can apply it via CSS.
// So we take the opacity and set (stroke/fill)-opacity to the same value.
if (!_.isUndefined(styles.opacity)) {
styles['stroke-opacity'] = styles.opacity;
styles['fill-opacity'] = styles.opacity;
}
// Merge attributes and applied styles (attributes take precedence)
_.extend(styles, attributes);
// Similarly visibility is influenced by the value of both display and visibility.
// Calculate a unified value here which defaults to `true`.
styles.visible = !(_.isUndefined(styles.display) && styles.display === 'none')
|| (_.isUndefined(styles.visibility) && styles.visibility === 'hidden');
// Now iterate the whole thing
for (key in styles) {
value = styles[key];
switch (key) {
case 'transform':
// TODO: Check this out https://github.com/paperjs/paper.js/blob/master/src/svg/SVGImport.js#L313
if (value === 'none') break;
var m = node.getCTM ? node.getCTM() : null;
// Might happen when transform string is empty or not valid.
if (m === null) break;
// // Option 1: edit the underlying matrix and don't force an auto calc.
// var m = node.getCTM();
// elem._matrix.manual = true;
// elem._matrix.set(m.a, m.b, m.c, m.d, m.e, m.f);
// Option 2: Decompose and infer Two.js related properties.
var transforms = Two.Utils.decomposeMatrix(node.getCTM());
elem.translation.set(transforms.translateX, transforms.translateY);
elem.rotation = transforms.rotation;
// Warning: Two.js elements only support uniform scalars...
elem.scale = transforms.scaleX;
var x = parseFloat((styles.x + '').replace('px'));
var y = parseFloat((styles.y + '').replace('px'));
// Override based on attributes.
if (x) {
elem.translation.x = x;
}
if (y) {
elem.translation.y = y;
}
break;
case 'visible':
elem.visible = value;
break;
case 'stroke-linecap':
elem.cap = value;
break;
case 'stroke-linejoin':
elem.join = value;
break;
case 'stroke-miterlimit':
elem.miter = value;
break;
case 'stroke-width':
elem.linewidth = parseFloat(value);
break;
case 'stroke-opacity':
case 'fill-opacity':
case 'opacity':
elem.opacity = parseFloat(value);
break;
case 'fill':
case 'stroke':
if (/url\(\#.*\)/i.test(value)) {
elem[key] = this.getById(
value.replace(/url\(\#(.*)\)/i, '$1'));
} else {
elem[key] = (value === 'none') ? 'transparent' : value;
}
break;
case 'id':
elem.id = value;
break;
case 'class':
elem.classList = value.split(' ');
break;
}
}
return elem;
},
/**
* Read any number of SVG node types and create Two equivalents of them.
*/
read: {
svg: function() {
return Two.Utils.read.g.apply(this, arguments);
},
g: function(node) {
var group = new Two.Group();
// Switched up order to inherit more specific styles
Two.Utils.applySvgAttributes.call(this, node, group);
for (var i = 0, l = node.childNodes.length; i < l; i++) {
var n = node.childNodes[i];
var tag = n.nodeName;
if (!tag) return;
var tagName = tag.replace(/svg\:/ig, '').toLowerCase();
if (tagName in Two.Utils.read) {
var o = Two.Utils.read[tagName].call(group, n);
group.add(o);
}
}
return group;
},
polygon: function(node, open) {
var points = node.getAttribute('points');
var verts = [];
points.replace(/(-?[\d\.?]+)[,|\s](-?[\d\.?]+)/g, function(match, p1, p2) {
verts.push(new Two.Anchor(parseFloat(p1), parseFloat(p2)));
});
var poly = new Two.Path(verts, !open).noStroke();
poly.fill = 'black';
return Two.Utils.applySvgAttributes.call(this, node, poly);
},
polyline: function(node) {
return Two.Utils.read.polygon.call(this, node, true);
},
path: function(node) {
var path = node.getAttribute('d');
// Create a Two.Path from the paths.
var coord = new Two.Anchor();
var control, coords;
var closed = false, relative = false;
var commands = path.match(/[a-df-z][^a-df-z]*/ig);
var last = commands.length - 1;
// Split up polybeziers
_.each(commands.slice(0), function(command, i) {
var type = command[0];
var lower = type.toLowerCase();
var items = command.slice(1).trim().split(/[\s,]+|(?=\s?[+\-])/);
var pre, post, result = [], bin;
if (i <= 0) {
commands = [];
}
switch (lower) {
case 'h':
case 'v':
if (items.length > 1) {
bin = 1;
}
break;
case 'm':
case 'l':
case 't':
if (items.length > 2) {
bin = 2;
}
break;
case 's':
case 'q':
if (items.length > 4) {
bin = 4;
}
break;
case 'c':
if (items.length > 6) {
bin = 6;
}
break;
case 'a':
// TODO: Handle Ellipses
break;
}
if (bin) {
for (var j = 0, l = items.length, times = 0; j < l; j+=bin) {
var ct = type;
if (times > 0) {
switch (type) {
case 'm':
ct = 'l';
break;
case 'M':
ct = 'L';
break;
}
}
result.push([ct].concat(items.slice(j, j + bin)).join(' '));
times++;
}
commands = Array.prototype.concat.apply(commands, result);
} else {
commands.push(command);
}
});
// Create the vertices for our Two.Path
var points = [];
_.each(commands, function(command, i) {
var result, x, y;
var type = command[0];
var lower = type.toLowerCase();
coords = command.slice(1).trim();
coords = coords.replace(/(-?\d+(?:\.\d*)?)[eE]([+\-]?\d+)/g, function(match, n1, n2) {
return parseFloat(n1) * pow(10, n2);
});
coords = coords.split(/[\s,]+|(?=\s?[+\-])/);
relative = type === lower;
var x1, y1, x2, y2, x3, y3, x4, y4, reflection;
switch (lower) {
case 'z':
if (i >= last) {
closed = true;
} else {
x = coord.x;
y = coord.y;
result = new Two.Anchor(
x, y,
undefined, undefined,
undefined, undefined,
Two.Commands.close
);
}
break;
case 'm':
case 'l':