VML实现的饼图JavaScript类封装

    技术2022-05-11  7

    <html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"> <head>  <title></title>  <meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1">  <meta name="ProgId" content="VisualStudio.HTML">  <meta name="Originator" content="Microsoft Visual Studio .NET 7.1">  <STYLE>v/:* { BEHAVIOR: url(#default#VML) } o/:* { BEHAVIOR: url(#default#VML) } .shape { BEHAVIOR: url(#default#VML) } </STYLE>  <script language="javascript">function Add(){ var shape=document.createElement("v:shape"); shape.type="#tooltipshape"; shape.style.width="150px"; shape.style.height="150px"; shape.coordsize="21600,21600"; shape.fillcolor="infobackground";  var textbox=document.createElement("v:textbox"); textbox.style.border="1px solid red"; textbox.style.innerHTML="测试"; shape.appendChild(textbox);   document.body.appendChild(shape);}

    function VMLPie(pContainer,pWidth,pHeight,pCaption){ this.Container=pContainer; this.Width= pWidth || "400px"; this.Height=pHeight || "250px"; this.Caption = pCaption || "VML Chart"; this.backgroundColor=""; this.Shadow=false; this.BorderWidth=0; this.BorderColor=null; this.all=new Array(); this.RandColor=function(){    return "rgb("+ parseInt( Math.random() * 255) +"," +parseInt( Math.random() * 255) +"," +parseInt( Math.random() * 255)+")"; } this.VMLObject=null;}

    VMLPie.prototype.Draw=function(){ //画外框  var o=document.createElement("v:group");  o.style.width=this.Width;  o.style.height=this.Height;  o.coordsize="21600,21600"; //添加一个背景层  var vRect=document.createElement("v:rect");  vRect.style.width="21600px"  vRect.style.height="21600px"  o.appendChild(vRect);    var vCaption=document.createElement("v:textbox");  vCaption.style.fontSize="24px";    vCaption.style.height="24px"  vCaption.style.fontWeight="bold";  vCaption.innerHTML=this.Caption;  vCaption.style.textAlign="center";    vRect.appendChild(vCaption); //设置边框大小   if(this.BorderWidth){   vRect.strokeweight=this.BorderWidth;  } //设置边框颜色  if(this.BorderColor){   vRect.strokecolor=this.BorderColor;  } //设置背景颜色  if(this.backgroundColor){     vRect.fillcolor=this.backgroundColor;  } //设置是否出现阴影  if(this.Shadow){   var vShadow=document.createElement("v:shadow");   vShadow.on="t";   vShadow.type="single";   vShadow.color="graytext";   vShadow.offset="4px,4px";   vRect.appendChild(vShadow);  }  this.VMLObject=o;  this.Container.appendChild(o);   //开始画内部园  var oOval=document.createElement("v:oval");  oOval.style.width="15000px";  oOval.style.height="14000px";  oOval.style.top="4000px";  oOval.style.left="1000px";  oOval.fillcolor="#d5dbfb";    //本来计划加入3D的效果,后来感觉确实不好控制,就懒得动手了  //var o3D=document.createElement("o:extrusion");  var formatStyle=' <v:fill  rotate="t" angle="-135" focus="100%" type="gradient"/>';  //formatStyle+='<o:extrusion v:ext="view" color="#9cf" on="t" rotationangle="-15"';  //formatStyle+=' viewpoint="0,34.72222mm" viewpointorigin="0,.5" skewangle="105"';  //formatStyle+=' lightposition="0,50000" lightposition2="0,-50000"/>';  formatStyle+='<o:extrusion v:ext="view" backdepth="1in" on="t" viewpoint="0,34.72222mm"   viewpointorigin="0,.5" skewangle="90" lightposition="-50000"   lightposition2="50000" type="perspective"/>';  oOval.innerHTML=formatStyle;      o.appendChild(oOval);  this.CreatePie(o);    }VMLPie.prototype.CreatePie=function(vGroup){  var mX=Math.pow(2,16) * 360;  //这个参数是划图形的关键   //AE x y width height startangle endangle  //x y表示圆心位置  //width height形状的大小  //startangle endangle的计算方法如下  // 2^16 * 度数     var vTotal=0;  var startAngle=0;  var endAngle=0;  var pieAngle=0;  var prePieAngle=0;    var objRow=null;  var objCell=null;    for(i=0;i<this.all.length;i++){   vTotal+=this.all[i].Value;  }    var objLegendRect=document.createElement("v:rect");    var objLegendTable=document.createElement("table");  objLegendTable.cellPadding=0;  objLegendTable.cellSpacing=3;  objLegendTable.width="100%";  with(objLegendRect){   style.left="17000px";   style.top="4000px";   style.width="4000px";   style.height="12000px";   fillcolor="#e6e6e6";   strokeweight="1px";     }  objRow=objLegendTable.insertRow();  objCell=objRow.insertCell();  objCell.colSpan="2";  //objCell.style.border="1px outset";  objCell.style.backgroundColor="black";  objCell.style.padding="5px";  objCell.style.color="window";  objCell.style.font="caption";  objCell.innerText="总数:"+vTotal;      var vTextbox=document.createElement("v:textbox");    vTextbox.appendChild(objLegendTable);  objLegendRect.appendChild(vTextbox);    var vShadow=document.createElement("v:shadow");  vShadow.on="t";  vShadow.type="single";  vShadow.color="graytext";  vShadow.offset="2px,2px";  objLegendRect.appendChild(vShadow);      vGroup.appendChild(objLegendRect); 

        var strAngle="";  for(i=0;i<this.all.length;i++){ //顺序的划出各个饼图   var vPieEl=document.createElement("v:shape");   var vPieId=document.uniqueID;   vPieEl.style.width="15000px";   vPieEl.style.height="14000px";   vPieEl.style.top="4000px";   vPieEl.style.left="1000px";   vPieEl.coordsize="1500,1400";   vPieEl.strokecolor="white";      vPieEl.id=vPieId;      pieAngle= this.all[i].Value / vTotal;   startAngle+=prePieAngle;   prePieAngle=pieAngle;   endAngle=pieAngle;       //strAngle+=this.all[i].Name +":" +this.all[i].Value+ " Start:"+startAngle +"  End:"+ endAngle +"/n";      vPieEl.path="M 750 700 AE 750 700 750 700 " + parseInt(mX * startAngle) +" " + parseInt(mX * endAngle) +" xe";   vPieEl.title=this.all[i].Name +"/n所占比例:"+ endAngle * 100 +"%/n详细描述:" +this.all[i].TooltipText;      //vPieEl.innerHTML='<v:fill  rotate="t" angle="-135" focus="100%" type="gradient"/>';   var objFill=document.createElement("v:fill");   objFill.rotate="t";   objFill.focus="100%";   objFill.type="gradient";   objFill.angle=parseInt( 360 * (startAngle + endAngle /2));   vPieEl.appendChild(objFill);      var objTextbox=document.createElement("v:textbox");   objTextbox.border="1px solid black";   objTextbox.innerHTML=this.all[i].Name +":" + this.all[i].Value;   //vPieEl.appendChild(objTextbox);      var vColor=this.RandColor();   vPieEl.fillcolor=vColor; //设置颜色   //开始画图例   objRow=objLegendTable.insertRow();   objRow.style.height="16px";      var objColor=objRow.insertCell();//颜色标记   objColor.style.backgroundColor=vColor;   objColor.style.width="16px";      objColor.PieElement=vPieId;   objColor.attachEvent("onmouseover",LegendMouseOverEvent);   objColor.attachEvent("onmouseout",LegendMouseOutEvent);   //objColor.οnmοuseοver="LegendMouseOverEvent()";   //objColor.οnmοuseοut="LegendMouseOutEvent()";      objCell=objRow.insertCell();   objCell.style.font="icon";   objCell.style.padding="3px";   objCell.innerText=this.all[i].Name +":"+this.all[i].Value ;      vGroup.appendChild(vPieEl);  }  }VMLPie.prototype.Refresh=function(){

    }VMLPie.prototype.Zoom=function (iValue){ var vX=21600; var vY=21600; this.VMLObject.coordsize=parseInt(vX / iValue) +","+parseInt(vY /iValue);}VMLPie.prototype.AddData=function(sName,sValue,sTooltipText){

     var oData=new Object(); oData.Name=sName; oData.Value=sValue; oData.TooltipText=sTooltipText; var iCount=this.all.length; this.all[iCount]=oData;

    }VMLPie.prototype.Clear=function(){ this.all.length=0;}function LegendMouseOverEvent(){  var eSrc=window.event.srcElement; eSrc.border="1px solid black";}function LegendMouseOutEvent(){ var eSrc=window.event.srcElement; eSrc.border="";}

    var objPie=null;//以下是函数调用function DrawPie(){ objPie=new VMLPie(document.body,"600px","450px","人口统计图"); //objPie.BorderWidth=3; //objPie.BorderColor="blue"; //objPie.Width="800px"; //objPie.Height="600px"; objPie.backgroundColor="#ffffff"; objPie.Shadow=true;  objPie.AddData("北京",10,"北京的人口"); objPie.AddData("上海",52,"上海的固定人口"); objPie.AddData("天津",30,"天津的外地人口"); objPie.AddData("西安",58,"西安城市人口"); objPie.AddData("武汉",30,"武汉的外地人口"); objPie.AddData("重庆",58,"重庆城市人口"); objPie.Draw(); //alert(document.body.outerHTML);}

      </script> </head> <body οnlοad="DrawPie()">  <v:shapetype id="tooltipshape" coordsize="21600,21600" o:spt="106" path=" ar0,7165,4345,13110,1950,7185,1080,12690 at475,11732,4835,17650,1080,12690,2910,17640 at2387,9757,10107,20300,2910,17640,8235,19545 at7660,12382,14412,21597,8235,19545,14280,18330 at12910,11080,18695,18947,14280,18330,18690,15045 at14822,5862,21597,15082,18690,15045,20895,7665 at15772,2592,21105,9865,20895,7665,19140,2715 at14330,0,19187,6595,19140,2715,14910,1170 at10992,0,15357,5945,14910,1170,11250,1665 at6692,650,12025,7917,11250,1665,7005,2580 at1912,1972,8665,11162,7005,2580,1950,7185 x e ar0,7165,4345,13110,1080,12690,2340,13080 nf e ar475,11732,4835,17650,2910,17640,3465,17445 nf e ar7660,12382,14412,21597,7905,18675,8235,19545 nf e ar7660,12382,14412,21597,14280,18330,14400,17370 nf e ar12910,11080,18695,18947,18690,15045,17070,11475 nf e ar15772,2592,21105,9865,20175,9015,20895,7665 nf e ar14330,0,19187,6595,19200,3345,19140,2715 nf e ar14330,0,19187,6595,14910,1170,14550,1980 nf e ar10992,0,15357,5945,11250,1665,11040,2340 nf e ar1912,1972,8665,11162,7650,3270,7005,2580 nf e ar1912,1972,8665,11162,1950,7185,2070,7890 nf e m@23@37 qx@35@24@23@36@34@24@23@37 x e m@16@33 qx@31@17@16@32@30@17@16@33 x e m@38@29 qx@27@39@38@28@26@39@38@29 x e"   adj="1350,25920">   <v:formulas>    <v:f eqn="sum #0 0 10800 "></v:f>    <v:f eqn="sum #1 0 10800 "></v:f>    <v:f eqn="cosatan2 10800 @0 @1 "></v:f>    <v:f eqn="sinatan2 10800 @0 @1 "></v:f>    <v:f eqn="sum @2 10800 0 "></v:f>    <v:f eqn="sum @3 10800 0 "></v:f>    <v:f eqn="sum @4 0 #0 "></v:f>    <v:f eqn="sum @5 0 #1 "></v:f>    <v:f eqn="mod @6 @7 0 "></v:f>    <v:f eqn="prod 600 11 1 "></v:f>    <v:f eqn="sum @8 0 @9 "></v:f>    <v:f eqn="prod @10 1 3 "></v:f>    <v:f eqn="prod 600 3 1 "></v:f>    <v:f eqn="sum @11 @12 0 "></v:f>    <v:f eqn="prod @13 @6 @8 "></v:f>    <v:f eqn="prod @13 @7 @8 "></v:f>    <v:f eqn="sum @14 #0 0 "></v:f>    <v:f eqn="sum @15 #1 0 "></v:f>    <v:f eqn="prod 600 8 1 "></v:f>    <v:f eqn="prod @11 2 1 "></v:f>    <v:f eqn="sum @18 @19 0 "></v:f>    <v:f eqn="prod @20 @6 @8 "></v:f>    <v:f eqn="prod @20 @7 @8 "></v:f>    <v:f eqn="sum @21 #0 0 "></v:f>    <v:f eqn="sum @22 #1 0 "></v:f>    <v:f eqn="prod 600 2 1 "></v:f>    <v:f eqn="sum #0 600 0 "></v:f>    <v:f eqn="sum #0 0 600 "></v:f>    <v:f eqn="sum #1 600 0 "></v:f>    <v:f eqn="sum #1 0 600 "></v:f>    <v:f eqn="sum @16 @25 0 "></v:f>    <v:f eqn="sum @16 0 @25 "></v:f>    <v:f eqn="sum @17 @25 0 "></v:f>    <v:f eqn="sum @17 0 @25 "></v:f>    <v:f eqn="sum @23 @12 0 "></v:f>    <v:f eqn="sum @23 0 @12 "></v:f>    <v:f eqn="sum @24 @12 0 "></v:f>    <v:f eqn="sum @24 0 @12 "></v:f>    <v:f eqn="sum #0 0 0 "></v:f>    <v:f eqn="sum #1 0 0 "></v:f>   </v:formulas>   <v:path o:connectlocs="67,10800;10800,21577;21582,10800;10800,1235;@38,@39" o:extrusionok="f"    o:connecttype="custom" textboxrect="2977,3262,17087,17337"></v:path>   <v:handles>    <v:h position="#0,#1"></v:h>   </v:handles>   <o:complex v:ext="view"></o:complex>  </v:shapetype>  <select id="zoom" οnchange="objPie.Zoom(this.value)">   <option value ="0.2" selected=true>20%</option>   <option value ="0.25">25%</option>   <option value ="0.4">40%</option>   <option value ="0.5">50%</option>   <option value ="0.75">75%</option>   <option value ="0.8">80%</option>   <option value ="1">原始大小</option>   <option value ="1.25">125%</option>   <option value ="1.5">150%</option>   <option value ="2">200%</option>   <option value ="3">300%</option>   <option value ="4">400%</option>  </select> </body></html>

     


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