/*! * jQVMap Version 1.0 * * http://jqvmap.com * * Copyright 2012, Peter Schmalfeldt * Copyright 2011-2012, Kirill Lebedev * Licensed under the MIT license. * * Fork Me @ https://github.com/manifestinteractive/jqvmap */ (function ($) { var apiParams = { colors: 1, values: 1, backgroundColor: 1, scaleColors: 1, normalizeFunction: 1, enableZoom: 1, showTooltip: 1, borderColor: 1, borderWidth: 1, borderOpacity: 1, selectedRegions: 1, multiSelectRegion: 1 }; var apiEvents = { onLabelShow: 'labelShow', onRegionOver: 'regionMouseOver', onRegionOut: 'regionMouseOut', onRegionClick: 'regionClick', onRegionSelect: 'regionSelect', onRegionDeselect: 'regionDeselect' }; $.fn.vectorMap = function (options) { var defaultParams = { map: 'world_en', backgroundColor: '#a5bfdd', color: '#f4f3f0', hoverColor: '#c9dfaf', selectedColor: '#c9dfaf', scaleColors: ['#b6d6ff', '#005ace'], normalizeFunction: 'linear', enableZoom: true, showTooltip: true, borderColor: '#818181', borderWidth: 1, borderOpacity: 0.25, selectedRegions: null, multiSelectRegion: false }, map = this.data('mapObject'); if (options === 'addMap') { WorldMap.maps[arguments[1]] = arguments[2]; } else if (options === 'set' && apiParams[arguments[1]]) { map['set' + arguments[1].charAt(0).toUpperCase() + arguments[1].substr(1)].apply(map, Array.prototype.slice.call(arguments, 2)); } else if (typeof options === 'string' && typeof map[options] === 'function') { return map[options].apply(map, Array.prototype.slice.call(arguments, 1)); } else { $.extend(defaultParams, options); defaultParams.container = this; this.css({position: 'relative', overflow: 'hidden'}); map = new WorldMap(defaultParams); this.data('mapObject', map); for (var e in apiEvents) { if (defaultParams[e]) { this.bind(apiEvents[e] + '.jqvmap', defaultParams[e]); } } } }; var VectorCanvas = function (width, height, params) { this.mode = window.SVGAngle ? 'svg' : 'vml'; this.params = params; if (this.mode == 'svg') { this.createSvgNode = function (nodeName) { return document.createElementNS(this.svgns, nodeName); }; } else { try { if (!document.namespaces.rvml) { document.namespaces.add("rvml", "urn:schemas-microsoft-com:vml"); } this.createVmlNode = function (tagName) { return document.createElement(''); }; } catch (e) { this.createVmlNode = function (tagName) { return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">'); }; } document.createStyleSheet().addRule(".rvml", "behavior:url(#default#VML)"); } if (this.mode == 'svg') { this.canvas = this.createSvgNode('svg'); } else { this.canvas = this.createVmlNode('group'); this.canvas.style.position = 'absolute'; } this.setSize(width, height); }; VectorCanvas.prototype = { svgns: "http://www.w3.org/2000/svg", mode: 'svg', width: 0, height: 0, canvas: null, setSize: function (width, height) { if (this.mode == 'svg') { this.canvas.setAttribute('width', width); this.canvas.setAttribute('height', height); } else { this.canvas.style.width = width + "px"; this.canvas.style.height = height + "px"; this.canvas.coordsize = width + ' ' + height; this.canvas.coordorigin = "0 0"; if (this.rootGroup) { var pathes = this.rootGroup.getElementsByTagName('shape'); for (var i = 0, l = pathes.length; i < l; i++) { pathes[i].coordsize = width + ' ' + height; pathes[i].style.width = width + 'px'; pathes[i].style.height = height + 'px'; } this.rootGroup.coordsize = width + ' ' + height; this.rootGroup.style.width = width + 'px'; this.rootGroup.style.height = height + 'px'; } } this.width = width; this.height = height; }, createPath: function (config) { var node; if (this.mode == 'svg') { node = this.createSvgNode('path'); node.setAttribute('d', config.path); if (this.params.borderColor !== null) { node.setAttribute('stroke', this.params.borderColor); } if (this.params.borderWidth > 0) { node.setAttribute('stroke-width', this.params.borderWidth); node.setAttribute('stroke-linecap', 'round'); node.setAttribute('stroke-linejoin', 'round'); } if (this.params.borderOpacity > 0) { node.setAttribute('stroke-opacity', this.params.borderOpacity); } node.setFill = function (color) { this.setAttribute("fill", color); if (this.getAttribute("original") === null) { this.setAttribute("original", color); } }; node.getFill = function (color) { return this.getAttribute("fill"); }; node.getOriginalFill = function () { return this.getAttribute("original"); }; node.setOpacity = function (opacity) { this.setAttribute('fill-opacity', opacity); }; } else { node = this.createVmlNode('shape'); node.coordorigin = "0 0"; node.coordsize = this.width + ' ' + this.height; node.style.width = this.width + 'px'; node.style.height = this.height + 'px'; node.fillcolor = WorldMap.defaultFillColor; node.stroked = false; node.path = VectorCanvas.pathSvgToVml(config.path); var scale = this.createVmlNode('skew'); scale.on = true; scale.matrix = '0.01,0,0,0.01,0,0'; scale.offset = '0,0'; node.appendChild(scale); var fill = this.createVmlNode('fill'); node.appendChild(fill); node.setFill = function (color) { this.getElementsByTagName('fill')[0].color = color; if (this.getAttribute("original") === null) { this.setAttribute("original", color); } }; node.getFill = function (color) { return this.getElementsByTagName('fill')[0].color; }; node.getOriginalFill = function () { return this.getAttribute("original"); }; node.setOpacity = function (opacity) { this.getElementsByTagName('fill')[0].opacity = parseInt(opacity * 100, 10) + '%'; }; } return node; }, createGroup: function (isRoot) { var node; if (this.mode == 'svg') { node = this.createSvgNode('g'); } else { node = this.createVmlNode('group'); node.style.width = this.width + 'px'; node.style.height = this.height + 'px'; node.style.left = '0px'; node.style.top = '0px'; node.coordorigin = "0 0"; node.coordsize = this.width + ' ' + this.height; } if (isRoot) { this.rootGroup = node; } return node; }, applyTransformParams: function (scale, transX, transY) { if (this.mode == 'svg') { this.rootGroup.setAttribute('transform', 'scale(' + scale + ') translate(' + transX + ', ' + transY + ')'); } else { this.rootGroup.coordorigin = (this.width - transX) + ',' + (this.height - transY); this.rootGroup.coordsize = this.width / scale + ',' + this.height / scale; } } }; VectorCanvas.pathSvgToVml = function (path) { var result = ''; var cx = 0, cy = 0, ctrlx, ctrly; return path.replace(/([MmLlHhVvCcSs])((?:-?(?:\d+)?(?:\.\d+)?,?\s?)+)/g, function (segment, letter, coords, index) { coords = coords.replace(/(\d)-/g, '$1,-').replace(/\s+/g, ',').split(','); if (!coords[0]) { coords.shift(); } for (var i = 0, l = coords.length; i < l; i++) { coords[i] = Math.round(100 * coords[i]); } switch (letter) { case 'm': cx += coords[0]; cy += coords[1]; return 't' + coords.join(','); break; case 'M': cx = coords[0]; cy = coords[1]; return 'm' + coords.join(','); break; case 'l': cx += coords[0]; cy += coords[1]; return 'r' + coords.join(','); break; case 'L': cx = coords[0]; cy = coords[1]; return 'l' + coords.join(','); break; case 'h': cx += coords[0]; return 'r' + coords[0] + ',0'; break; case 'H': cx = coords[0]; return 'l' + cx + ',' + cy; break; case 'v': cy += coords[0]; return 'r0,' + coords[0]; break; case 'V': cy = coords[0]; return 'l' + cx + ',' + cy; break; case 'c': ctrlx = cx + coords[coords.length - 4]; ctrly = cy + coords[coords.length - 3]; cx += coords[coords.length - 2]; cy += coords[coords.length - 1]; return 'v' + coords.join(','); break; case 'C': ctrlx = coords[coords.length - 4]; ctrly = coords[coords.length - 3]; cx = coords[coords.length - 2]; cy = coords[coords.length - 1]; return 'c' + coords.join(','); break; case 's': coords.unshift(cy - ctrly); coords.unshift(cx - ctrlx); ctrlx = cx + coords[coords.length - 4]; ctrly = cy + coords[coords.length - 3]; cx += coords[coords.length - 2]; cy += coords[coords.length - 1]; return 'v' + coords.join(','); break; case 'S': coords.unshift(cy + cy - ctrly); coords.unshift(cx + cx - ctrlx); ctrlx = coords[coords.length - 4]; ctrly = coords[coords.length - 3]; cx = coords[coords.length - 2]; cy = coords[coords.length - 1]; return 'c' + coords.join(','); break; default: return false; break; } return ''; }).replace(/z/g, ''); }; var WorldMap = function (params) { params = params || {}; var map = this; var mapData = WorldMap.maps[params.map]; this.selectedRegions = []; this.multiSelectRegion = params.multiSelectRegion; this.container = params.container; this.defaultWidth = mapData.width; this.defaultHeight = mapData.height; this.color = params.color; this.selectedColor = params.selectedColor; this.hoverColor = params.hoverColor; this.hoverOpacity = params.hoverOpacity; this.setBackgroundColor(params.backgroundColor); this.width = params.container.width(); this.height = params.container.height(); this.resize(); jQuery(window).resize(function () { map.width = params.container.width(); map.height = params.container.height(); map.resize(); map.canvas.setSize(map.width, map.height); map.applyTransform(); }); this.canvas = new VectorCanvas(this.width, this.height, params); params.container.append(this.canvas.canvas); this.makeDraggable(); this.rootGroup = this.canvas.createGroup(true); this.index = WorldMap.mapIndex; this.label = jQuery('
').addClass('jqvmap-label').appendTo(jQuery('body')).hide(); if (params.enableZoom) { jQuery('
').addClass('jqvmap-zoomin').text('+').appendTo(params.container); jQuery('
').addClass('jqvmap-zoomout').html('−').appendTo(params.container); } map.countries = []; for (var key in mapData.pathes) { var path = this.canvas.createPath({ path: mapData.pathes[key].path }); path.setFill(this.color); path.id = map.getCountryId(key); map.countries[key] = path; if (this.canvas.mode == 'svg') { path.setAttribute('class', 'jvectormap-region'); } else { jQuery(path).addClass('jvectormap-region'); } jQuery(this.rootGroup).append(path); } jQuery(params.container).delegate(this.canvas.mode == 'svg' ? 'path' : 'shape', 'mouseover mouseout', function (e) { var path = e.target, code = e.target.id.split('_').pop(), labelShowEvent = $.Event('labelShow.jqvmap'), regionMouseOverEvent = $.Event('regionMouseOver.jqvmap'); if (e.type == 'mouseover') { jQuery(params.container).trigger(regionMouseOverEvent, [code, mapData.pathes[code].name]); if (!regionMouseOverEvent.isDefaultPrevented()) { map.highlight(code, path); } if (params.showTooltip) { map.label.text(mapData.pathes[code].name); jQuery(params.container).trigger(labelShowEvent, [map.label, code]); if (!labelShowEvent.isDefaultPrevented()) { map.label.show(); map.labelWidth = map.label.width(); map.labelHeight = map.label.height(); } } } else { map.unhighlight(code, path); map.label.hide(); jQuery(params.container).trigger('regionMouseOut.jqvmap', [code, mapData.pathes[code].name]); } }); jQuery(params.container).delegate(this.canvas.mode == 'svg' ? 'path' : 'shape', 'click', function (e) { if (!params.multiSelectRegion) { for (var key in mapData.pathes) { map.countries[key].currentFillColor = map.countries[key].getOriginalFill(); map.countries[key].setFill(map.countries[key].getOriginalFill()); } } var path = e.target; var code = e.target.id.split('_').pop(); jQuery(params.container).trigger('regionClick.jqvmap', [code, mapData.pathes[code].name]); if (!regionClickEvent.isDefaultPrevented()) { if (map.selectedRegions.indexOf(code) !== -1) { map.deselect(code, path); } else { map.select(code, path); } } //console.log(selectedRegions); }); if (params.showTooltip) { params.container.mousemove(function (e) { if (map.label.is(':visible')) { var left = e.pageX - 15 - map.labelWidth; var top = e.pageY - 15 - map.labelHeight; if (left < 0) left = e.pageX + 15; if (top < 0) top = e.pageY + 15; map.label.css({ left: left, top: top }); } }); } this.setColors(params.colors); this.canvas.canvas.appendChild(this.rootGroup); this.applyTransform(); this.colorScale = new ColorScale(params.scaleColors, params.normalizeFunction, params.valueMin, params.valueMax); if (params.values) { this.values = params.values; this.setValues(params.values); } if (params.selectedRegions) { if (params.selectedRegions instanceof Array) { for (var k in params.selectedRegions) { this.select(params.selectedRegions[k].toLowerCase()); } } else { this.select(params.selectedRegions.toLowerCase()); } } this.bindZoomButtons(); if (params.pins) { /*if(params.pinMode) { if(params.pinMode != "id" && params.pinMode != "content") { params.pinMode = "content"; } } else { params.pinMode = "content"; }*/ this.pinHandlers = false; this.placePins(params.pins, params.pinMode); } WorldMap.mapIndex++; }; WorldMap.prototype = { transX: 0, transY: 0, scale: 1, baseTransX: 0, baseTransY: 0, baseScale: 1, width: 0, height: 0, countries: {}, countriesColors: {}, countriesData: {}, zoomStep: 1.4, zoomMaxStep: 4, zoomCurStep: 1, setColors: function (key, color) { if (typeof key == 'string') { this.countries[key].setFill(color); this.countries[key].setAttribute("original", color); } else { var colors = key; for (var code in colors) { if (this.countries[code]) { this.countries[code].setFill(colors[code]); this.countries[code].setAttribute("original", colors[code]); } } } }, setValues: function (values) { var max = 0, min = Number.MAX_VALUE, val; for (var cc in values) { val = parseFloat(values[cc]); if (val > max) { max = values[cc]; } if (val && val < min) { min = val; } } this.colorScale.setMin(min); this.colorScale.setMax(max); var colors = {}; for (cc in values) { val = parseFloat(values[cc]); if (val) { colors[cc] = this.colorScale.getColor(val); } else { colors[cc] = this.color; } } this.setColors(colors); this.values = values; }, setBackgroundColor: function (backgroundColor) { this.container.css('background-color', backgroundColor); }, setScaleColors: function (colors) { this.colorScale.setColors(colors); if (this.values) { this.setValues(this.values); } }, setNormalizeFunction: function (f) { this.colorScale.setNormalizeFunction(f); if (this.values) { this.setValues(this.values); } }, highlight: function (cc, path) { path = path || $('#' + this.getCountryId(cc))[0]; if (this.hoverOpacity) { path.setOpacity(this.hoverOpacity); } else if (this.hoverColor) { path.currentFillColor = path.getFill() + ''; path.setFill(this.hoverColor); } }, unhighlight: function (cc, path) { path = path || $('#' + this.getCountryId(cc))[0]; path.setOpacity(1); if (path.currentFillColor) { path.setFill(path.currentFillColor); } }, select: function (cc, path) { path = path || $('#' + this.getCountryId(cc))[0]; if (this.selectedRegions.indexOf(cc) < 0) { if (this.multiSelectRegion) { this.selectedRegions.push(cc); } else { this.selectedRegions = [cc]; } // MUST BE after the change of selectedRegions // Otherwise, we might loop $(this.container).trigger('regionSelect.jqvmap', [cc]); if (this.selectedColor) { path.currentFillColor = this.selectedColor; path.setFill(this.selectedColor); } } }, deselect: function (cc, path) { path = path || $('#' + this.getCountryId(cc))[0]; if (this.selectedRegions.indexOf(cc) >= 0) { this.selectedRegions.splice(this.selectedRegions.indexOf(cc), 1); // MUST BE after the change of selectedRegions // Otherwise, we might loop $(this.container).trigger('regionDeselect.jqvmap', [cc]); path.currentFillColor = path.getOriginalFill(); path.setFill(path.getOriginalFill()); } }, isSelected: function (cc) { return this.selectedRegions.indexOf(cc) >= 0; }, resize: function () { var curBaseScale = this.baseScale; if (this.width / this.height > this.defaultWidth / this.defaultHeight) { this.baseScale = this.height / this.defaultHeight; this.baseTransX = Math.abs(this.width - this.defaultWidth * this.baseScale) / (2 * this.baseScale); } else { this.baseScale = this.width / this.defaultWidth; this.baseTransY = Math.abs(this.height - this.defaultHeight * this.baseScale) / (2 * this.baseScale); } this.scale *= this.baseScale / curBaseScale; this.transX *= this.baseScale / curBaseScale; this.transY *= this.baseScale / curBaseScale; }, reset: function () { this.countryTitle.reset(); for (var key in this.countries) { this.countries[key].setFill(WorldMap.defaultColor); } this.scale = this.baseScale; this.transX = this.baseTransX; this.transY = this.baseTransY; this.applyTransform(); }, applyTransform: function () { var maxTransX, maxTransY, minTransX, minTransY; if (this.defaultWidth * this.scale <= this.width) { maxTransX = (this.width - this.defaultWidth * this.scale) / (2 * this.scale); minTransX = (this.width - this.defaultWidth * this.scale) / (2 * this.scale); } else { maxTransX = 0; minTransX = (this.width - this.defaultWidth * this.scale) / this.scale; } if (this.defaultHeight * this.scale <= this.height) { maxTransY = (this.height - this.defaultHeight * this.scale) / (2 * this.scale); minTransY = (this.height - this.defaultHeight * this.scale) / (2 * this.scale); } else { maxTransY = 0; minTransY = (this.height - this.defaultHeight * this.scale) / this.scale; } if (this.transY > maxTransY) { this.transY = maxTransY; } else if (this.transY < minTransY) { this.transY = minTransY; } if (this.transX > maxTransX) { this.transX = maxTransX; } else if (this.transX < minTransX) { this.transX = minTransX; } this.canvas.applyTransformParams(this.scale, this.transX, this.transY); }, makeDraggable: function () { var mouseDown = false; var oldPageX, oldPageY; var self = this; self.isMoving = false; self.isMovingTimeout = false; this.container.mousemove(function (e) { if (mouseDown) { var curTransX = self.transX; var curTransY = self.transY; self.transX -= (oldPageX - e.pageX) / self.scale; self.transY -= (oldPageY - e.pageY) / self.scale; self.applyTransform(); oldPageX = e.pageX; oldPageY = e.pageY; self.isMoving = true; if (self.isMovingTimeout) { clearTimeout(self.isMovingTimeout); } self.container.trigger('drag'); } return false; }).mousedown(function (e) { mouseDown = true; oldPageX = e.pageX; oldPageY = e.pageY; return false; }).mouseup(function () { mouseDown = false; self.isMovingTimeout = setTimeout(function () { self.isMoving = false; }, 100); return false; }); }, bindZoomButtons: function () { var map = this; this.container.find('.jqvmap-zoomin').click(function () { map.zoomIn(); }); this.container.find('.jqvmap-zoomout').click(function () { map.zoomOut(); }); }, zoomIn: function () { var map = this; var sliderDelta = (jQuery('#zoom').innerHeight() - 6 * 2 - 15 * 2 - 3 * 2 - 7 - 6) / (this.zoomMaxStep - this.zoomCurStep); if (map.zoomCurStep < map.zoomMaxStep) { var curTransX = map.transX; var curTransY = map.transY; var curScale = map.scale; map.transX -= (map.width / map.scale - map.width / (map.scale * map.zoomStep)) / 2; map.transY -= (map.height / map.scale - map.height / (map.scale * map.zoomStep)) / 2; map.setScale(map.scale * map.zoomStep); map.zoomCurStep++; jQuery('#zoomSlider').css('top', parseInt(jQuery('#zoomSlider').css('top'), 10) - sliderDelta); map.container.trigger("zoomIn"); } }, zoomOut: function () { var map = this; var sliderDelta = (jQuery('#zoom').innerHeight() - 6 * 2 - 15 * 2 - 3 * 2 - 7 - 6) / (this.zoomMaxStep - this.zoomCurStep); if (map.zoomCurStep > 1) { var curTransX = map.transX; var curTransY = map.transY; var curScale = map.scale; map.transX += (map.width / (map.scale / map.zoomStep) - map.width / map.scale) / 2; map.transY += (map.height / (map.scale / map.zoomStep) - map.height / map.scale) / 2; map.setScale(map.scale / map.zoomStep); map.zoomCurStep--; jQuery('#zoomSlider').css('top', parseInt(jQuery('#zoomSlider').css('top'), 10) + sliderDelta); map.container.trigger("zoomOut"); } }, setScale: function (scale) { this.scale = scale; this.applyTransform(); }, getCountryId: function (cc) { return 'jqvmap' + this.index + '_' + cc; }, getPinId: function (cc) { return this.getCountryId(cc) + '_pin'; }, placePins: function (pins, pinMode) { var map = this; if (!pinMode || (pinMode != "content" && pinMode != "id")) { pinMode = "content"; } if (pinMode == "content") {//treat pin as content jQuery.each(pins, function (index, pin) { if (jQuery('#' + map.getCountryId(index)).length == 0) { return; } //mapData.pathes[code].name var pinIndex = map.getPinId(index); if (jQuery('#' + pinIndex).length > 0) { jQuery('#' + pinIndex).remove(); } map.container.append('
' + pin + '
'); }); } else { //treat pin as id of an html content jQuery.each(pins, function (index, pin) { if (jQuery('#' + map.getCountryId(index)).length == 0) { return; } var pinIndex = map.getPinId(index); if (jQuery('#' + pinIndex).length > 0) { jQuery('#' + pinIndex).remove(); } map.container.append('
'); jQuery('#' + pinIndex).append(jQuery('#' + pin)); }); } this.positionPins(); if (!this.pinHandlers) { this.pinHandlers = true;//do only once var positionFix = function () { map.positionPins(); }; this.container.bind('zoomIn', positionFix) .bind('zoomOut', positionFix) .bind('drag', positionFix); } }, positionPins: function () { var map = this; var pins = this.container.find('.jqvmap_pin'); jQuery.each(pins, function (index, pinObj) { pinObj = jQuery(pinObj); var countryId = map.getCountryId(pinObj.attr('for')); var countryObj = jQuery('#' + countryId); var bbox = document.getElementById(countryId).getBBox(); var position = countryObj.position(); var scale = map.scale; var left = position.left + (bbox.width / 2) * scale - pinObj.width() / 2, top = position.top + (bbox.height / 2) * scale - pinObj.height() / 2; pinObj.css('left', left).css('top', top); }); }, getPin: function (cc) { var pinObj = jQuery('#' + this.getPinId(cc)); return pinObj.html(); }, getPins: function () { var pins = this.container.find('.jqvmap_pin'); var ret = new Object(); jQuery.each(pins, function (index, pinObj) { pinObj = jQuery(pinObj); var cc = pinObj.attr('for'); var pinContent = pinObj.html(); eval("ret." + cc + "=pinContent"); }); return JSON.stringify(ret); }, removePin: function (cc) { jQuery('#' + this.getPinId(cc)).remove(); }, removePins: function () { this.container.find('.jqvmap_pin').remove(); } }; WorldMap.xlink = "http://www.w3.org/1999/xlink"; WorldMap.mapIndex = 1; WorldMap.maps = {}; var ColorScale = function (colors, normalizeFunction, minValue, maxValue) { if (colors) { this.setColors(colors); } if (normalizeFunction) { this.setNormalizeFunction(normalizeFunction); } if (minValue) { this.setMin(minValue); } if (minValue) { this.setMax(maxValue); } }; ColorScale.prototype = { colors: [], setMin: function (min) { this.clearMinValue = min; if (typeof this.normalize === 'function') { this.minValue = this.normalize(min); } else { this.minValue = min; } }, setMax: function (max) { this.clearMaxValue = max; if (typeof this.normalize === 'function') { this.maxValue = this.normalize(max); } else { this.maxValue = max; } }, setColors: function (colors) { for (var i = 0; i < colors.length; i++) { colors[i] = ColorScale.rgbToArray(colors[i]); } this.colors = colors; }, setNormalizeFunction: function (f) { if (f === 'polynomial') { this.normalize = function (value) { return Math.pow(value, 0.2); }; } else if (f === 'linear') { delete this.normalize; } else { this.normalize = f; } this.setMin(this.clearMinValue); this.setMax(this.clearMaxValue); }, getColor: function (value) { if (typeof this.normalize === 'function') { value = this.normalize(value); } var lengthes = []; var fullLength = 0; var l; for (var i = 0; i < this.colors.length - 1; i++) { l = this.vectorLength(this.vectorSubtract(this.colors[i + 1], this.colors[i])); lengthes.push(l); fullLength += l; } var c = (this.maxValue - this.minValue) / fullLength; for (i = 0; i < lengthes.length; i++) { lengthes[i] *= c; } i = 0; value -= this.minValue; while (value - lengthes[i] >= 0) { value -= lengthes[i]; i++; } var color; if (i == this.colors.length - 1) { color = this.vectorToNum(this.colors[i]).toString(16); } else { color = (this.vectorToNum(this.vectorAdd(this.colors[i], this.vectorMult(this.vectorSubtract(this.colors[i + 1], this.colors[i]), (value) / (lengthes[i]))))).toString(16); } while (color.length < 6) { color = '0' + color; } return '#' + color; }, vectorToNum: function (vector) { var num = 0; for (var i = 0; i < vector.length; i++) { num += Math.round(vector[i]) * Math.pow(256, vector.length - i - 1); } return num; }, vectorSubtract: function (vector1, vector2) { var vector = []; for (var i = 0; i < vector1.length; i++) { vector[i] = vector1[i] - vector2[i]; } return vector; }, vectorAdd: function (vector1, vector2) { var vector = []; for (var i = 0; i < vector1.length; i++) { vector[i] = vector1[i] + vector2[i]; } return vector; }, vectorMult: function (vector, num) { var result = []; for (var i = 0; i < vector.length; i++) { result[i] = vector[i] * num; } return result; }, vectorLength: function (vector) { var result = 0; for (var i = 0; i < vector.length; i++) { result += vector[i] * vector[i]; } return Math.sqrt(result); } }; ColorScale.arrayToRgb = function (ar) { var rgb = '#'; var d; for (var i = 0; i < ar.length; i++) { d = ar[i].toString(16); rgb += d.length == 1 ? '0' + d : d; } return rgb; }; ColorScale.rgbToArray = function (rgb) { rgb = rgb.substr(1); return [parseInt(rgb.substr(0, 2), 16), parseInt(rgb.substr(2, 2), 16), parseInt(rgb.substr(4, 2), 16)]; }; })(jQuery);