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svg-graphic.js
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svg-graphic.js
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//====================================================================================================
// [插件名称] svg制作折线统计图组件
//----------------------------------------------------------------------------------------------------
// [描 述] 调用简单，配置简单，样式更灵活，更轻量级，整体原生开发，速度更快，优点：更小更快。
//----------------------------------------------------------------------------------------------------
// [作者网名] webjackchen（阿飞）
// [邮 箱] [email protected]
// [QQ交流] 602071930
// [版 本 号] ver0.0.1
//====================================================================================================
(function(d3){
var svgNs = "http://www.w3.org/2000/svg";
d3.CreatLine = function(){
this.oParent = null,
this.settings = {
type:"甲醛",
xTitleShow:false,
yTextHide:false,
yLineHide:false,
xTextFontSise:20,
textColor:"#000",
data:[{x:"周一",y:12},{x:"周二",y:15},{x:"周三",y:9},{x:"周四",y:76},{x:"周五",y:35},{x:"周六",y:30},{x:"周天",y:42}]
}
}
d3.CreatLine.prototype.init = function(oParent,opt){
opt = opt || {};
extend(this.settings,opt);
var This = this;
This.oParent = oParent;
This.yMax = This.oParent.offsetHeight;
This.xMax = This.oParent.offsetWidth;
This.oSvg = creatTage("svg",{xmlns:"http://www.w3.org/2000/svg", width:"100%", height:"100%"});
This.oParent.appendChild(This.oSvg );
This.yAixDrew(This.yMax);
This.xAixDrew(This.xMax);
This.polyLineDrew();
This.eventHandle();
}
d3.CreatLine.prototype.figureYunit = function(yMax){//计算实际点在图中对应的y坐标
var yDataMax = this.settings.data[0].y;
for(var i=0;i<this.settings.data.length;i++){
if(this.settings.data[i].y > yDataMax){
yDataMax = this.settings.data[i].y;
}
}
this.yDataUnit = Math.floor(yDataMax/5);
this.yFigureUnits = (yMax-40)/yDataMax;
return {
yDataUnit: Math.floor(yDataMax/5),
yFigureUnits:(yMax - 40)/yDataMax
}
}
d3.CreatLine.prototype.figureXunit = function(xMax){//计算实际点在图中对应的x坐标
var xDatalength = this.settings.data.length;
this.xDataUnit = Math.round((xMax-50)/xDatalength);
return {
xDataUnit: Math.round((xMax-50)/xDatalength)
}
}
d3.CreatLine.prototype.yAixDrew = function(yMax){
var yUnit = this.figureYunit(yMax);
var oG = creatTage("g",{style:"cursor:pointer"});
var oLine = creatTage("line",{x1:40,y1:0,x2:40,y2:yMax-30,stroke:"#c0d0e0"});
var xEnd = this.settings.yLineHide ? this.xMax-40:this.xMax;
if(this.settings.yLineHide == false){
oG.appendChild(oLine);
}
for(var i=0;i<=5;i++){
if(i == 0){
continue;
}
var oText = creatTage("text",{x:20,y:yMax-yUnit.yDataUnit*i*yUnit.yFigureUnits -23,"font-size":"20",'text-anchor':'middle',"fill":this.settings.textColor});
var oLine1 = creatTage("line",{x1:40,y1:yMax-yUnit.yDataUnit*i*yUnit.yFigureUnits -30.5,x2:xEnd,y2:yMax-yUnit.yDataUnit*i*yUnit.yFigureUnits -30.5,stroke:"#c0c0c0","stroke-width":1});
oText.textContent = yUnit.yDataUnit*i;
if(this.settings.yTextHide == false){
oG.appendChild(oText);
}
oG.appendChild(oLine1);
}
this.oSvg .appendChild(oG);
}
d3.CreatLine.prototype.xAixDrew = function(xMax){
var xUnit = this.figureXunit(xMax);
var oG = creatTage("g",{});
var oLine = creatTage("line",{x1:"40",y1:this.yMax-30,x2:this.xMax,y2:this.yMax-30,stroke:"#c0d0e0"});
oG.appendChild(oLine);
if(this.settings.xTitleShow){
for(var i=0;i<this.settings.data.length;i++){
var oText = creatTage("text",{x:i*xUnit.xDataUnit+40,y:this.yMax-10,"font-size":this.settings.xTextFontSise,'text-anchor':'middle',"fill":this.settings.textColor});
oText.textContent = this.settings.data[i].x;
oG.appendChild(oText);
}
}
var oText = creatTage("text",{x:this.xMax-80,y:45,"font-size":"20",'text-anchor':'middle',"fill":this.settings.textColor});
oText.textContent = this.settings.type;
oG.appendChild(oText);
this.oSvg .appendChild(oG);
}
d3.CreatLine.prototype.polyLineDrew = function(){
//var oPolyLine = creatTage('polyline',{'fill':'rgba(155,198,239,0.3)','stroke':'#86898c','stroke-width':'1'});
var oPolyLine = creatTage('polyline',{'fill':'rgba(155,198,239,0.3)','stroke':'#fff','stroke-width':'1'});
var piontsNum = "";
var oCircleArr = [];
var lastPoint = "";
this.oSvg .appendChild( oPolyLine );
if(piontsNum == ""){
piontsNum = 40 + "," + (this.yMax-this.settings.data[0].y*this.yFigureUnits - 30);
oCircle = creatTage('circle',{cursor:"move",dataX:this.settings.data[0].x,dataY:this.settings.data[0].y,cx:40,cy:(this.yMax-this.settings.data[0].y*this.yFigureUnits - 30),r:"5",'fill':'#7cb5ec','stroke':'#86898c','stroke-width':'1'});
oCircle1 = creatTage('circle',{class:"circle",cursor:"move",dataX:this.settings.data[0].x,dataY:this.settings.data[0].y,cx:40,cy:(this.yMax-this.settings.data[0].y*this.yFigureUnits - 30),r:"20",'fill':'transparent','stroke':'tranprent','stroke-width':'0'});
oCircleArr.push(oCircle);
oCircleArr.push(oCircle1);
}
for(var i=1;i<this.settings.data.length;i++){
piontsNum += "," + (i*this.xDataUnit+40) + "," + (this.yMax-this.settings.data[i].y*this.yFigureUnits - 30);
oCircle = creatTage('circle',{cursor:"move",dataX:this.settings.data[i].x,dataY:this.settings.data[i].y,cx:(i*this.xDataUnit+40),cy:(this.yMax-this.settings.data[i].y*this.yFigureUnits - 30),r:"5",'fill':'#7cb5ec','stroke':'#86898c','stroke-width':'2'});
oCircle1 = creatTage('circle',{class:"circle",cursor:"move",dataX:this.settings.data[i].x,dataY:this.settings.data[i].y,cx:(i*this.xDataUnit+40),cy:(this.yMax-this.settings.data[i].y*this.yFigureUnits - 30),r:"20",'fill':'transparent','stroke':'transprent','stroke-width':'0'});
oCircleArr.push(oCircle);
oCircleArr.push(oCircle1);
if(i == this.settings.data.length-1){
lastPoint = "," + (i*this.xDataUnit+40) + "," + (this.yMax - 30);
}
}
oPolyLine.setAttribute("points","40," + (this.yMax - 30)+ "," + piontsNum + lastPoint);
for(var j=0;j<oCircleArr.length;j++){
this.oSvg .appendChild( oCircleArr[j] );
}
}
d3.CreatLine.prototype.eventHandle = function(){
var oCircleArr = document.getElementsByClassName("circle");
for(var i=0;i<oCircleArr.length;i++){
oCircleArr[i].addEventListener("touchstart",function(ev){
var ev = ev.changedTouches[0];
var oSvg = this.parentNode;
var oMaskPrompt = oSvg.previousElementSibling;
var dataX = this.getAttribute("dataX");
var posY = this.getAttribute("cy");
var posX = this.getAttribute("cx");
var dataY = this.getAttribute("dataY");
this.previousElementSibling.setAttribute("r",8);
this.previousElementSibling.setAttribute("stroke","rgba(134,137,140,0.5)");
oMaskPrompt.style.top = posY + "px";
oMaskPrompt.style.left = posX + "px";
oMaskPrompt.style.display = "block";
oMaskPrompt.innerHTML = dataX + "<br/>" + dataY;
});
oCircleArr[i].onmouseenter = function(ev){
var ev = ev || window.event;
var oSvg = this.parentNode;
var oMaskPrompt = oSvg.previousElementSibling;
var dataX = this.getAttribute("dataX");
var posY = this.getAttribute("cy");
var posX = this.getAttribute("cx");
var dataY = this.getAttribute("dataY");
this.previousElementSibling.setAttribute("stroke","rgba(134,137,140,0.5)");
this.previousElementSibling.setAttribute("r",8);
oMaskPrompt.style.top = posY + "px";
oMaskPrompt.style.left = posX + "px";
oMaskPrompt.style.display = "block";
oMaskPrompt.innerHTML = dataX + "<br/>" + dataY;
}
oCircleArr[i].onmouseleave = function(){
var oSvg = this.parentNode;
var oMaskPrompt = oSvg.previousElementSibling;
this.previousElementSibling.setAttribute("r",5);
this.previousElementSibling.setAttribute("stroke","#86898c");
oMaskPrompt.style.display = "none";
}
oCircleArr[i].touchend = function(ev){
var ev = ev.changedTouches[0];
var oSvg = this.parentNode;
var oMaskPrompt = oSvg.previousElementSibling;
this.previousElementSibling.setAttribute("r",5);
this.previousElementSibling.setAttribute("stroke","#86898c");
oMaskPrompt.style.display = "none";
}
}
}
function extend(obj1,obj2){
for(var attr in obj2){
obj1[attr] = obj2[attr];
}
}
function creatTage(tageName,json){//创建标签方法
var oTage = document.createElementNS(svgNs,tageName);
for(var attr in json){
oTage.setAttribute(attr,json[attr]);
}
return oTage;
}
})(window);