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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.widget.svg.Chart");
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dojo.require("dojo.widget.HtmlWidget");
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dojo.require("dojo.widget.Chart");
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dojo.require("dojo.html.layout");
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dojo.require("dojo.math");
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dojo.require("dojo.svg");
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dojo.require("dojo.gfx.color");
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dojo.require("dojo.json");
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dojo.widget.defineWidget("dojo.widget.svg.Chart", [dojo.widget.HtmlWidget, dojo.widget.Chart], function () {
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this.templatePath = null;
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this.templateCssPath = null;
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this._isInitialize = false;
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this.hasData = false;
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this.vectorNode = null;
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this.plotArea = null;
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this.dataGroup = null;
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this.axisGroup = null;
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this.properties = {height:0, width:0, defaultWidth:600, defaultHeight:400, plotType:null, padding:{top:10, bottom:2, left:60, right:30}, axes:{x:{plotAt:0, label:"", unitLabel:"", unitType:Number, nUnitsToShow:10, range:{min:0, max:200}}, y:{plotAt:0, label:"", unitLabel:"", unitType:Number, nUnitsToShow:10, range:{min:0, max:200}}}};
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}, {parseProperties:function (node) {
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var bRangeX = false;
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var bRangeY = false;
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if (node.getAttribute("width")) {
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this.properties.width = node.getAttribute("width");
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}
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if (node.getAttribute("height")) {
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this.properties.height = node.getAttribute("height");
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}
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if (node.getAttribute("plotType")) {
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this.properties.plotType = node.getAttribute("plotType");
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}
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if (node.getAttribute("padding")) {
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if (node.getAttribute("padding").indexOf(",") > -1) {
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var p = node.getAttribute("padding").split(",");
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} else {
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var p = node.getAttribute("padding").split(" ");
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}
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if (p.length == 1) {
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var pad = parseFloat(p[0]);
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this.properties.padding.top = pad;
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this.properties.padding.right = pad;
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this.properties.padding.bottom = pad;
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this.properties.padding.left = pad;
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} else {
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if (p.length == 2) {
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var padV = parseFloat(p[0]);
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var padH = parseFloat(p[1]);
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this.properties.padding.top = padV;
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this.properties.padding.right = padH;
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this.properties.padding.bottom = padV;
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this.properties.padding.left = padH;
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} else {
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if (p.length == 4) {
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this.properties.padding.top = parseFloat(p[0]);
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this.properties.padding.right = parseFloat(p[1]);
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this.properties.padding.bottom = parseFloat(p[2]);
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this.properties.padding.left = parseFloat(p[3]);
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}
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}
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}
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}
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if (node.getAttribute("rangeX")) {
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var p = node.getAttribute("rangeX");
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if (p.indexOf(",") > -1) {
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p = p.split(",");
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} else {
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p = p.split(" ");
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}
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this.properties.axes.x.range.min = parseFloat(p[0]);
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this.properties.axes.x.range.max = parseFloat(p[1]);
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bRangeX = true;
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}
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if (node.getAttribute("rangeY")) {
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var p = node.getAttribute("rangeY");
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if (p.indexOf(",") > -1) {
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p = p.split(",");
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} else {
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p = p.split(" ");
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}
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this.properties.axes.y.range.min = parseFloat(p[0]);
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this.properties.axes.y.range.max = parseFloat(p[1]);
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bRangeY = true;
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}
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return {rangeX:bRangeX, rangeY:bRangeY};
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}, setAxesPlot:function (table) {
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if (table.getAttribute("axisAt")) {
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var p = table.getAttribute("axisAt");
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if (p.indexOf(",") > -1) {
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p = p.split(",");
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} else {
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p = p.split(" ");
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}
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if (!isNaN(parseFloat(p[0]))) {
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this.properties.axes.x.plotAt = parseFloat(p[0]);
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} else {
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if (p[0].toLowerCase() == "ymin") {
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this.properties.axes.x.plotAt = this.properties.axes.y.range.min;
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} else {
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if (p[0].toLowerCase() == "ymax") {
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this.properties.axes.x.plotAt = this.properties.axes.y.range.max;
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}
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}
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}
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if (!isNaN(parseFloat(p[1]))) {
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this.properties.axes.y.plotAt = parseFloat(p[1]);
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} else {
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if (p[1].toLowerCase() == "xmin") {
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this.properties.axes.y.plotAt = this.properties.axes.x.range.min;
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} else {
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if (p[1].toLowerCase() == "xmax") {
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this.properties.axes.y.plotAt = this.properties.axes.x.range.max;
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}
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}
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}
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} else {
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this.properties.axes.x.plotAt = this.properties.axes.y.range.min;
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this.properties.axes.y.plotAt = this.properties.axes.x.range.min;
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}
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}, drawVectorNode:function () {
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dojo.svg.g.suspend();
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if (this.vectorNode) {
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this.destroy();
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}
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this.vectorNode = document.createElementNS(dojo.svg.xmlns.svg, "svg");
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this.vectorNode.setAttribute("width", this.properties.width);
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this.vectorNode.setAttribute("height", this.properties.height);
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dojo.svg.g.resume();
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}, drawPlotArea:function () {
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dojo.svg.g.suspend();
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if (this.plotArea) {
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this.plotArea.parentNode.removeChild(this.plotArea);
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this.plotArea = null;
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}
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var defs = document.createElementNS(dojo.svg.xmlns.svg, "defs");
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var clip = document.createElementNS(dojo.svg.xmlns.svg, "clipPath");
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clip.setAttribute("id", "plotClip" + this.widgetId);
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var rect = document.createElementNS(dojo.svg.xmlns.svg, "rect");
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rect.setAttribute("x", this.properties.padding.left);
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rect.setAttribute("y", this.properties.padding.top);
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rect.setAttribute("width", this.properties.width - this.properties.padding.left - this.properties.padding.right);
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rect.setAttribute("height", this.properties.height - this.properties.padding.top - this.properties.padding.bottom);
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clip.appendChild(rect);
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defs.appendChild(clip);
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this.vectorNode.appendChild(defs);
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this.plotArea = document.createElementNS(dojo.svg.xmlns.svg, "g");
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this.vectorNode.appendChild(this.plotArea);
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var rect = document.createElementNS(dojo.svg.xmlns.svg, "rect");
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rect.setAttribute("x", this.properties.padding.left);
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rect.setAttribute("y", this.properties.padding.top);
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rect.setAttribute("width", this.properties.width - this.properties.padding.left - this.properties.padding.right);
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rect.setAttribute("height", this.properties.height - this.properties.padding.top - this.properties.padding.bottom);
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rect.setAttribute("fill", "#fff");
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this.plotArea.appendChild(rect);
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dojo.svg.g.resume();
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}, drawDataGroup:function () {
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dojo.svg.g.suspend();
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if (this.dataGroup) {
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this.dataGroup.parentNode.removeChild(this.dataGroup);
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this.dataGroup = null;
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}
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this.dataGroup = document.createElementNS(dojo.svg.xmlns.svg, "g");
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this.dataGroup.setAttribute("style", "clip-path:url(#plotClip" + this.widgetId + ");");
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this.plotArea.appendChild(this.dataGroup);
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dojo.svg.g.resume();
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}, drawAxes:function () {
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dojo.svg.g.suspend();
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if (this.axisGroup) {
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this.axisGroup.parentNode.removeChild(this.axisGroup);
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this.axisGroup = null;
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}
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this.axisGroup = document.createElementNS(dojo.svg.xmlns.svg, "g");
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this.plotArea.appendChild(this.axisGroup);
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var stroke = 1;
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var line = document.createElementNS(dojo.svg.xmlns.svg, "line");
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var y = dojo.widget.svg.Chart.Plotter.getY(this.properties.axes.x.plotAt, this);
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line.setAttribute("y1", y);
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line.setAttribute("y2", y);
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line.setAttribute("x1", this.properties.padding.left - stroke);
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line.setAttribute("x2", this.properties.width - this.properties.padding.right);
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line.setAttribute("style", "stroke:#000;stroke-width:" + stroke + ";");
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this.axisGroup.appendChild(line);
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var textSize = 10;
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", this.properties.padding.left);
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text.setAttribute("y", this.properties.height - this.properties.padding.bottom + textSize + 2);
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text.setAttribute("style", "text-anchor:middle;font-size:" + textSize + "px;fill:#000;");
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text.appendChild(document.createTextNode(dojo.math.round(parseFloat(this.properties.axes.x.range.min), 2)));
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this.axisGroup.appendChild(text);
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", this.properties.width - this.properties.padding.right - (textSize / 2));
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text.setAttribute("y", this.properties.height - this.properties.padding.bottom + textSize + 2);
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text.setAttribute("style", "text-anchor:middle;font-size:" + textSize + "px;fill:#000;");
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text.appendChild(document.createTextNode(dojo.math.round(parseFloat(this.properties.axes.x.range.max), 2)));
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this.axisGroup.appendChild(text);
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var line = document.createElementNS(dojo.svg.xmlns.svg, "line");
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var x = dojo.widget.svg.Chart.Plotter.getX(this.properties.axes.y.plotAt, this);
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line.setAttribute("x1", x);
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line.setAttribute("x2", x);
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line.setAttribute("y1", this.properties.padding.top);
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line.setAttribute("y2", this.properties.height - this.properties.padding.bottom);
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line.setAttribute("style", "stroke:#000;stroke-width:" + stroke + ";");
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this.axisGroup.appendChild(line);
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", this.properties.padding.left - 4);
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text.setAttribute("y", this.properties.height - this.properties.padding.bottom);
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text.setAttribute("style", "text-anchor:end;font-size:" + textSize + "px;fill:#000;");
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text.appendChild(document.createTextNode(dojo.math.round(parseFloat(this.properties.axes.y.range.min), 2)));
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this.axisGroup.appendChild(text);
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var text = document.createElementNS(dojo.svg.xmlns.svg, "text");
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text.setAttribute("x", this.properties.padding.left - 4);
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text.setAttribute("y", this.properties.padding.top + (textSize / 2));
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text.setAttribute("style", "text-anchor:end;font-size:" + textSize + "px;fill:#000;");
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text.appendChild(document.createTextNode(dojo.math.round(parseFloat(this.properties.axes.y.range.max), 2)));
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this.axisGroup.appendChild(text);
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dojo.svg.g.resume();
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}, init:function () {
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if (!this.properties.width || !this.properties.height) {
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var box = dojo.html.getContentBox(this.domNode);
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if (!this.properties.width) {
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this.properties.width = (box.width < 32) ? this.properties.defaultWidth : box.width;
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}
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if (!this.properties.height) {
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this.properties.height = (box.height < 32) ? this.properties.defaultHeight : box.height;
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}
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}
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this.drawVectorNode();
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this.drawPlotArea();
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this.drawDataGroup();
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this.drawAxes();
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this.domNode.appendChild(this.vectorNode);
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this.assignColors();
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this._isInitialized = true;
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}, destroy:function () {
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while (this.domNode.childNodes.length > 0) {
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this.domNode.removeChild(this.domNode.childNodes.item(0));
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}
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this.vectorNode = this.plotArea = this.dataGroup = this.axisGroup = null;
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}, render:function () {
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dojo.svg.g.suspend();
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if (this.dataGroup) {
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while (this.dataGroup.childNodes.length > 0) {
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this.dataGroup.removeChild(this.dataGroup.childNodes.item(0));
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}
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} else {
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this.init();
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}
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for (var i = 0; i < this.series.length; i++) {
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dojo.widget.svg.Chart.Plotter.plot(this.series[i], this);
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}
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dojo.svg.g.resume();
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}, postCreate:function () {
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var table = this.domNode.getElementsByTagName("table")[0];
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if (table) {
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var ranges = this.parseProperties(table);
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var bRangeX = false;
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var bRangeY = false;
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var axisValues = this.parseData(table);
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if (!bRangeX) {
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this.properties.axes.x.range = {min:axisValues.x.min, max:axisValues.x.max};
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}
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if (!bRangeY) {
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this.properties.axes.y.range = {min:axisValues.y.min, max:axisValues.y.max};
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}
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this.setAxesPlot(table);
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this.domNode.removeChild(table);
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}
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if (this.series.length > 0) {
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this.render();
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}
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}});
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dojo.widget.svg.Chart.Plotter = new function () {
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var self = this;
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var plotters = {};
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var types = dojo.widget.Chart.PlotTypes;
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this.getX = function (value, chart) {
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var v = parseFloat(value);
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var min = chart.properties.axes.x.range.min;
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var max = chart.properties.axes.x.range.max;
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var ofst = 0 - min;
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min += ofst;
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max += ofst;
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v += ofst;
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var xmin = chart.properties.padding.left;
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var xmax = chart.properties.width - chart.properties.padding.right;
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var x = (v * ((xmax - xmin) / max)) + xmin;
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return x;
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};
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this.getY = function (value, chart) {
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var v = parseFloat(value);
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var max = chart.properties.axes.y.range.max;
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var min = chart.properties.axes.y.range.min;
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var ofst = 0;
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if (min < 0) {
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ofst += Math.abs(min);
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|
|
304 |
}
|
|
|
305 |
min += ofst;
|
|
|
306 |
max += ofst;
|
|
|
307 |
v += ofst;
|
|
|
308 |
var ymin = chart.properties.height - chart.properties.padding.bottom;
|
|
|
309 |
var ymax = chart.properties.padding.top;
|
|
|
310 |
var y = (((ymin - ymax) / (max - min)) * (max - v)) + ymax;
|
|
|
311 |
return y;
|
|
|
312 |
};
|
|
|
313 |
this.addPlotter = function (name, func) {
|
|
|
314 |
plotters[name] = func;
|
|
|
315 |
};
|
|
|
316 |
this.plot = function (series, chart) {
|
|
|
317 |
if (series.values.length == 0) {
|
|
|
318 |
return;
|
|
|
319 |
}
|
|
|
320 |
if (series.plotType && plotters[series.plotType]) {
|
|
|
321 |
return plotters[series.plotType](series, chart);
|
|
|
322 |
} else {
|
|
|
323 |
if (chart.plotType && plotters[chart.plotType]) {
|
|
|
324 |
return plotters[chart.plotType](series, chart);
|
|
|
325 |
}
|
|
|
326 |
}
|
|
|
327 |
};
|
|
|
328 |
plotters["bar"] = function (series, chart) {
|
|
|
329 |
var space = 1;
|
|
|
330 |
var lastW = 0;
|
|
|
331 |
for (var i = 0; i < series.values.length; i++) {
|
|
|
332 |
var x = self.getX(series.values[i].x, chart);
|
|
|
333 |
var w;
|
|
|
334 |
if (i == series.values.length - 1) {
|
|
|
335 |
w = lastW;
|
|
|
336 |
} else {
|
|
|
337 |
w = self.getX(series.values[i + 1].x, chart) - x - space;
|
|
|
338 |
lastW = w;
|
|
|
339 |
}
|
|
|
340 |
x -= (w / 2);
|
|
|
341 |
var yA = self.getY(chart.properties.axes.x.plotAt, chart);
|
|
|
342 |
var y = self.getY(series.values[i].value, chart);
|
|
|
343 |
var h = Math.abs(yA - y);
|
|
|
344 |
if (parseFloat(series.values[i].value) < chart.properties.axes.x.plotAt) {
|
|
|
345 |
var oy = yA;
|
|
|
346 |
yA = y;
|
|
|
347 |
y = oy;
|
|
|
348 |
}
|
|
|
349 |
var bar = document.createElementNS(dojo.svg.xmlns.svg, "rect");
|
|
|
350 |
bar.setAttribute("fill", series.color);
|
|
|
351 |
bar.setAttribute("title", series.label + ": " + series.values[i].value);
|
|
|
352 |
bar.setAttribute("stroke-width", "0");
|
|
|
353 |
bar.setAttribute("x", x);
|
|
|
354 |
bar.setAttribute("y", y);
|
|
|
355 |
bar.setAttribute("width", w);
|
|
|
356 |
bar.setAttribute("height", h);
|
|
|
357 |
bar.setAttribute("fill-opacity", "0.9");
|
|
|
358 |
chart.dataGroup.appendChild(bar);
|
|
|
359 |
}
|
|
|
360 |
};
|
|
|
361 |
plotters["line"] = function (series, chart) {
|
|
|
362 |
var tension = 1.5;
|
|
|
363 |
var line = document.createElementNS(dojo.svg.xmlns.svg, "path");
|
|
|
364 |
line.setAttribute("fill", "none");
|
|
|
365 |
line.setAttribute("stroke", series.color);
|
|
|
366 |
line.setAttribute("stroke-width", "2");
|
|
|
367 |
line.setAttribute("stroke-opacity", "0.85");
|
|
|
368 |
line.setAttribute("title", series.label);
|
|
|
369 |
chart.dataGroup.appendChild(line);
|
|
|
370 |
var path = [];
|
|
|
371 |
for (var i = 0; i < series.values.length; i++) {
|
|
|
372 |
var x = self.getX(series.values[i].x, chart);
|
|
|
373 |
var y = self.getY(series.values[i].value, chart);
|
|
|
374 |
var dx = chart.properties.padding.left + 1;
|
|
|
375 |
var dy = chart.properties.height - chart.properties.padding.bottom;
|
|
|
376 |
if (i > 0) {
|
|
|
377 |
dx = x - self.getX(series.values[i - 1].x, chart);
|
|
|
378 |
dy = self.getY(series.values[i - 1].value, chart);
|
|
|
379 |
}
|
|
|
380 |
if (i == 0) {
|
|
|
381 |
path.push("M");
|
|
|
382 |
} else {
|
|
|
383 |
path.push("C");
|
|
|
384 |
var cx = x - (tension - 1) * (dx / tension);
|
|
|
385 |
path.push(cx + "," + dy);
|
|
|
386 |
cx = x - (dx / tension);
|
|
|
387 |
path.push(cx + "," + y);
|
|
|
388 |
}
|
|
|
389 |
path.push(x + "," + y);
|
|
|
390 |
}
|
|
|
391 |
line.setAttribute("d", path.join(" "));
|
|
|
392 |
};
|
|
|
393 |
plotters["area"] = function (series, chart) {
|
|
|
394 |
var tension = 1.5;
|
|
|
395 |
var line = document.createElementNS(dojo.svg.xmlns.svg, "path");
|
|
|
396 |
line.setAttribute("fill", series.color);
|
|
|
397 |
line.setAttribute("fill-opacity", "0.4");
|
|
|
398 |
line.setAttribute("stroke", series.color);
|
|
|
399 |
line.setAttribute("stroke-width", "1");
|
|
|
400 |
line.setAttribute("stroke-opacity", "0.8");
|
|
|
401 |
line.setAttribute("title", series.label);
|
|
|
402 |
chart.dataGroup.appendChild(line);
|
|
|
403 |
var path = [];
|
|
|
404 |
for (var i = 0; i < series.values.length; i++) {
|
|
|
405 |
var x = self.getX(series.values[i].x, chart);
|
|
|
406 |
var y = self.getY(series.values[i].value, chart);
|
|
|
407 |
var dx = chart.properties.padding.left + 1;
|
|
|
408 |
var dy = chart.properties.height - chart.properties.padding.bottom;
|
|
|
409 |
if (i > 0) {
|
|
|
410 |
dx = x - self.getX(series.values[i - 1].x, chart);
|
|
|
411 |
dy = self.getY(series.values[i - 1].value, chart);
|
|
|
412 |
}
|
|
|
413 |
if (i == 0) {
|
|
|
414 |
path.push("M");
|
|
|
415 |
} else {
|
|
|
416 |
path.push("C");
|
|
|
417 |
var cx = x - (tension - 1) * (dx / tension);
|
|
|
418 |
path.push(cx + "," + dy);
|
|
|
419 |
cx = x - (dx / tension);
|
|
|
420 |
path.push(cx + "," + y);
|
|
|
421 |
}
|
|
|
422 |
path.push(x + "," + y);
|
|
|
423 |
}
|
|
|
424 |
path.push("L");
|
|
|
425 |
path.push(x + "," + self.getY(0, chart));
|
|
|
426 |
path.push("L");
|
|
|
427 |
path.push(self.getX(0, chart) + "," + self.getY(0, chart));
|
|
|
428 |
path.push("Z");
|
|
|
429 |
line.setAttribute("d", path.join(" "));
|
|
|
430 |
}, plotters["scatter"] = function (series, chart) {
|
|
|
431 |
var r = 7;
|
|
|
432 |
for (var i = 0; i < series.values.length; i++) {
|
|
|
433 |
var x = self.getX(series.values[i].x, chart);
|
|
|
434 |
var y = self.getY(series.values[i].value, chart);
|
|
|
435 |
var point = document.createElementNS(dojo.svg.xmlns.svg, "path");
|
|
|
436 |
point.setAttribute("fill", series.color);
|
|
|
437 |
point.setAttribute("stroke-width", "0");
|
|
|
438 |
point.setAttribute("title", series.label + ": " + series.values[i].value);
|
|
|
439 |
point.setAttribute("d", "M " + x + "," + (y - r) + " " + "Q " + x + "," + y + " " + (x + r) + "," + y + " " + "Q " + x + "," + y + " " + x + "," + (y + r) + " " + "Q " + x + "," + y + " " + (x - r) + "," + y + " " + "Q " + x + "," + y + " " + x + "," + (y - r) + " " + "Z");
|
|
|
440 |
chart.dataGroup.appendChild(point);
|
|
|
441 |
}
|
|
|
442 |
};
|
|
|
443 |
plotters["bubble"] = function (series, chart) {
|
|
|
444 |
var minR = 1;
|
|
|
445 |
var min = chart.properties.axes.x.range.min;
|
|
|
446 |
var max = chart.properties.axes.x.range.max;
|
|
|
447 |
var ofst = 0 - min;
|
|
|
448 |
min += ofst;
|
|
|
449 |
max += ofst;
|
|
|
450 |
var xmin = chart.properties.padding.left;
|
|
|
451 |
var xmax = chart.properties.width - chart.properties.padding.right;
|
|
|
452 |
var factor = (max - min) / (xmax - xmin) * 25;
|
|
|
453 |
for (var i = 0; i < series.values.length; i++) {
|
|
|
454 |
var size = series.values[i].size;
|
|
|
455 |
if (isNaN(parseFloat(size))) {
|
|
|
456 |
size = minR;
|
|
|
457 |
}
|
|
|
458 |
var point = document.createElementNS(dojo.svg.xmlns.svg, "circle");
|
|
|
459 |
point.setAttribute("stroke-width", 0);
|
|
|
460 |
point.setAttribute("fill", series.color);
|
|
|
461 |
point.setAttribute("fill-opacity", "0.8");
|
|
|
462 |
point.setAttribute("r", (parseFloat(size) * factor) / 2);
|
|
|
463 |
point.setAttribute("cx", self.getX(series.values[i].x, chart));
|
|
|
464 |
point.setAttribute("cy", self.getY(series.values[i].value, chart));
|
|
|
465 |
point.setAttribute("title", series.label + ": " + series.values[i].value + " (" + size + ")");
|
|
|
466 |
chart.dataGroup.appendChild(point);
|
|
|
467 |
}
|
|
|
468 |
};
|
|
|
469 |
}();
|
|
|
470 |
|