VML画柱状图、并图、折线图的封装

/* 3D统计图绘图类

功能：根据表格数据绘制统计图

作者：LiuZXIT

完成：2003/9/10

备注：在IE6下测试成功

局限性：1.只能针对于单一二维行列式规则TABLE进行绘制

2.TABLE内容必须有左标题和上标题，并且右下部分都必须是数据区

不足：没有支持动态定制数据源，例如用一个XML数据包，有些文字太长会出现显示不好

注意点：

1.htm页面必需包含以下内容

<STYLE>

v\:* {behavior:url(#default#VML);}

o\:* { behavior: url(#default#VML) }

.shape { behavior: url(#default#VML) }

</STYLE>

2.饼形图和柱状图只能针对一行或一列数据，所以在勾选多行或多列时，只会绘制出勾选的最上面行或最左边列

function draw3D(arTable,aDiv,asTool,intCol,intRow){ //是否画工具栏asTool如不填为N都认为是Y，跳过左边intCol列和表头intRow列省略为1

if(arTable==null || aDiv==null)return;

asTool=(asTool==null?'Y':asTool);

asTool=(asTool.toUpperCase()=='N'?'N':'Y');

intCol=(intCol==null?1:intCol);

intRow=(intRow==null?1:intRow);

intCol=(parseInt(intCol)==NaN?1:parseInt(intCol));

intRow=(parseInt(intRow)==NaN?1:parseInt(intRow));

for(var i=intCol;i<arTable.rows[intRow - 1].cells.length;i++){

arTable.rows[intRow - 1].cells[i].innerHTML +='<input type="checkbox" checked name="SelectCol" checked>'

}

for(var i=intRow;i<arTable.rows.length;i++){

arTable.rows[i].cells[intCol - 1].innerHTML +='<input type="checkbox" name="SelectRow" checked>'

}

if(asTool=='Y'){

var strTool='';

strTool += '<span style="font:9pt;"><select id="DrawImg_room" onchange="draw.changeRate(this.value)">';

strTool += '<option value=0.7>0.7';

strTool += '<option value=0.8 selected>0.8<option value=1 >1<option value=2>2<option value=4>4';

strTool += '<option value=6>6<option value=8 >8<option value=10>10</option></select>';

strTool += '<input type="radio" id="DrawImg_type2" name="DrawImg_type" checked><label for="d2">柱状图</label> ';

strTool += '<input type="radio" id="DrawImg_type1" name="DrawImg_type"><label for="d4">饼形图</label> ';

strTool += '<input type="radio" id="DrawImg_type3" name="DrawImg_type"><label for="d3">折线图</label> ';

strTool += '<input type="radio" id="Draw_Compare1" name="Draw_Compare" checked><label for="Draw_Compare1">横比</label> ';

strTool += '<input type="radio" id="Draw_Compare2" name="Draw_Compare"><label for="Draw_Compare2">纵比</label> ';

strTool += '<input type="button" id="Draw_Button" value="画图" onclick="this.DrawImg.draw()"></span>';

aDiv.insertAdjacentHTML("beforeBegin",strTool);

document.all('Draw_Button').DrawImg=this;

}

this.Rate=0.8; //尺寸比例

this.DataSource=new Array(); //数据源

this.DataHead=new Array(); //表头

this.DataKind=new Array(); //种类

this.Color=new Array("#ff0000","#ffA6A6","#ff00ff","#ffaeff","#0000ff","#84aeff","#00ffff","#a6aeff","#00ff00","#b5ffb5","#ffff00","#ffffb5")

this.DrGroup=new Array(); //画了的图的记录集

this.DrawObject=arTable; //放置数据的TABLE

this.DrawDiv=aDiv; //用于画图的DIV，建议用DIV而避免用其他标签

this.IntCol=intCol; //标题列数

this.IntRow=intRow; //标题行数

this.drawPie=DR_drawPie; //画饼型图

this.drawPole=DR_drawPole; //画柱状图

this.drawLine=DR_drawLine; //画折线图

this.changeRate=DR_changeRate; //改变比例尺

this.collectData=DR_collectData; //收集数据

this.draw=DR_draw; //画图

}

function DR_draw(){

if(DrawImg_type1.checked)this.DrawDiv.innerHTML=draw.drawPie();

if(DrawImg_type2.checked)this.DrawDiv.innerHTML=draw.drawPole();

if(DrawImg_type3.checked)this.DrawDiv.innerHTML=draw.drawLine();

if(document.all('DrawImg_room')!=null)document.all('DrawImg_room').value=1;

}

function DR_collectData(){

var intRow=this.IntRow,intCol=this.IntCol,tblData=this.DrawObject;

this.DataSource=new Array();

this.DataHead=new Array();

this.DataKind=new Array();

if(Draw_Compare1.checked){ //如果是横比

if(intRow > 0){

for(var i=intCol;i<tblData.rows[intRow - 1].cells.length;i++){

if(tblData.rows[intRow - 1].cells[i].all('SelectCol').checked)this.DataHead[this.DataHead.length++]=tblData.rows[intRow - 1].cells[i].innerText;

}

if(intCol > 0){

for(var i=intRow;i<tblData.rows.length;i++){

if(tblData.rows[i].cells[intCol - 1].all('SelectRow').checked)this.DataKind[this.DataKind.length++]=tblData.rows[i].cells[intCol - 1].innerText;

}

var intValue;

for(var i=intRow;i<tblData.rows.length;i++){

if(tblData.rows[i].cells[intCol - 1].all('SelectRow').checked){

this.DataSource[this.DataSource.length++]=new Array();

for(var j=intCol;j<tblData.rows[i].cells.length;j++){

if(tblData.rows[intRow - 1].cells[j].all('SelectCol').checked){

this.DataSource[this.DataSource.length - 1].length ++

intValue=parseInt(tblData.rows[i].cells[j].innerText+"");

intValue=(isNaN(intValue)?0:intValue)

this.DataSource[this.DataSource.length - 1][this.DataSource[this.DataSource.length - 1].length - 1]=intValue;

}

}else{ //否则纵比

if(intRow > 0){

for(var i=intCol;i<tblData.rows[intRow - 1].cells.length;i++){

if(tblData.rows[intRow - 1].cells[i].all('SelectCol').checked)this.DataKind[this.DataKind.length++]=tblData.rows[intRow - 1].cells[i].innerText;

}

if(intCol > 0){

for(var i=intRow;i<tblData.rows.length;i++){

if(tblData.rows[i].cells[intCol - 1].all('SelectRow').checked)this.DataHead[this.DataHead.length++]=tblData.rows[i].cells[intCol - 1].innerText;

}

var intValue;

for(var i=intCol;i<tblData.rows[intCol].cells.length;i++){

if(tblData.rows[intRow - 1].cells[i].all('SelectCol').checked){

this.DataSource[this.DataSource.length++]=new Array();

for(var j=intRow;j<tblData.rows.length;j++){

if(tblData.rows[j].cells[intRow - 1].all('SelectRow').checked){

this.DataSource[this.DataSource.length - 1].length ++

intValue=parseInt(tblData.rows[j].cells[i].innerText+"");

intValue=(isNaN(intValue)?0:intValue)

this.DataSource[this.DataSource.length - 1][this.DataSource[this.DataSource.length - 1].length - 1]=intValue;

}

function DR_drawPie(){ //arInt：那一组数据

this.collectData();

if(this.DataSource.length<1)return;

var maxScale = 1<<16,intTotal=0

for (var i=0;i<this.DataSource[0].length;i++)intTotal+= parseInt(this.DataSource[0][i]);

this.Rate=1;

var w=1,strObj='DR_Group'

while(w > 0){

if(document.all(strObj + w)==null)break;

w++

}

this.DrGroup[this.DrGroup.length++]=(strObj + w);

var str="<v:group id='" +(strObj + w) +"' style='500;height:500;position:absolute;' CoordSize='3600,3600'>\n"

//画底下的圆饼

str += "<v:shape style='10;height:10;' CoordSize='"+this.Rate+","+this.Rate+"'>\n"

str += "<v:path v='ae 300,200,200,200,3932100,23592960 xe' />\n"

str += "<o:extrusion v:ext='view' on='t' rotationangle='80,-10' backdepth='10' color='#0086c6' />\n"

str += "</v:shape>\n"

//画各部分的饼块

var numStart=0,numScale=0;

for (var i=0;i<this.DataSource[0].length;i++){

numScale=(this.DataSource[0][i] / intTotal) * maxScale * 360;

str += "<v:shape style='10;height:10;' CoordSize='"+this.Rate+","+this.Rate+"'>\n"

str += "<v:path v='m 300,200 ae 300,200,200,200,"+parseInt(numStart)+","+parseInt(numScale)+" xe' />\n"

str += "<v:fill color='"+this.Color[i * 2 % 12]+"' color2='"+this.Color[(i * 2 % 12) + 1]+"' rotate='t' focus='100%' type='gradient' />\n"

str += "<o:extrusion v:ext='view' on='t' rotationangle='80,-10' backdepth='0' />\n"

str += "</v:shape>\n"

numStart+=numScale

}

//画右边的图例

var intTmp=0

for (var i=0;i<this.DataSource[0].length;i++){

str += "<v:rect style='top:"+(i*200)+";left:4500;100;height:100;' strokecolor='#0099ff' fillcolor='"+this.Color[(i * 2 % 12)]+"'></v:rect>"

str+="<v:line from='4600,"+(i*200)+"' to='5500,"+(i*200)+"' strokecolor='#ffffff' strokeWeight='2'>"

str += "<v:textbox inset='0pt,0pt,0pt,0pt' style='color:#0099ff;font-size:9pt;'>"+this.DataHead[i]+":"+(i==this.DataSource[0].length - 1?(10000 - intTmp)/100:parseInt(this.DataSource[0][i] / intTotal * 10000) /100)+"%</v:textbox></v:line>"

intTmp += parseInt(this.DataSource[0][i] / intTotal * 10000)

}

str += "</v:group>\n"

return str

}

function DR_drawPole(){

this.collectData();

if(this.DataSource.length<1)return;

// 数据最大值，数组元素个数每个柱子的宽度柱与柱间的间隔

var intMax=0,intTotal=this.DataSource[0].length + 1,intPWidth=parseInt(1800 / intTotal,10),intPad=intPWidth * 2;

intPWidth=(intPWidth>300?300:intPWidth);

for(var i=0;i<this.DataSource[0].length;i++){intMax=(intMax < this.DataSource[0][i]?this.DataSource[0][i]:intMax)}

intMax=(parseInt(intMax / Math.pow(10,(intMax+"").length - 1)) + 1) * Math.pow(10,(intMax+"").length - 1)

this.Rate=1;

var w=1,strObj='DR_Group'

while(w > 0){

if(document.all(strObj + w)==null)break;

w++

}

this.DrGroup[this.DrGroup.length++]=(strObj + w);

var str="<v:group id='" +(strObj + w) +"' style='500;height:500;position:absolute;' CoordSize='3600,3600'>\n"

//画底板

str += "<v:PolyLine Points='400,2400 200,2600 3800,2600 4000,2400' strokecolor='#0099ff'>\n" //底

str += "<v:fill color='#00cfef' angle='45' rotate='t' focus='100%' type='gradient' />\n"

str += "</v:PolyLine>\n"

str += "<v:PolyLine Points='400,2400 200,2600 200,200 400,0 ' strokecolor='#0099ff'>\n" //左

str += "<v:fill color='#00cfef' angle='210' rotate='t' focus='100%' type='gradient' />\n"

str += "</v:PolyLine>\n"

str += "<v:PolyLine Points='400,0 4000,0 4000,2400 400,2400 ' strokecolor='#0099ff'>\n"

str += "<v:fill color='#00cfef' angle='135' rotate='t' focus='100%' type='gradient' />\n" //正

str += "</v:PolyLine>\n"

//画虚线

for(var i=1;i<10;i++){

str += "<v:PolyLine filled='false' Points='200,"+(2600 - 240 * i)+" 400,"+(2400 - 240 * i)+" 4000,"+(2400 - 240 * i)+"' strokecolor='#0099ff'>\n"

str += "<v:stroke dashstyle='Dash' />\n"

str += "</v:PolyLine>\n"

}

//画左边的坐标

for(var i=1;i<11;i++){

str+="<v:RoundRect style='left:0;top:"+(2600 - 240 * i)+";' strokeColor='transparent'>"

str+="<v:textbox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;color:#0000ff;'>"+(i*(intMax / 10))+"</v:textbox></v:RoundRect>"

}

//画底下的标签

for (var i=0;i<this.DataSource[0].length;i++){

str+="<v:RoundRect style='left:"+(400 + parseInt(intPad * (i + 0.5),10) - parseInt((intPWidth / 2)))+";top:2600;' strokeColor='transparent'>"

str+="<v:textbox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;color:#0099ff;'>"+this.DataHead[i]+"</v:textbox></v:RoundRect>"

}

//画柱状图

for(var i=0;i<this.DataSource[0].length;i++){

str += "<v:PolyLine Points='"+(400 + parseInt(intPad * (i + 0.5),10))+",2400 "+(400 + parseInt(intPad * (i + 0.5),10))+","+(2400 - parseInt(this.DataSource[0][i]/intMax * 2400,10))+" "+(400 + parseInt(intPad * (i + 0.5),10) + intPWidth)+"," +(2400 - parseInt(this.DataSource[0][i]/intMax * 2400,10))+" "+(400 + parseInt(intPad * (i + 0.5),10) + intPWidth)+",2400 ' strokecolor='#ffffff'>\n"

str += "<v:fill color='"+this.Color[(i % 12)]+"' angle='150' rotate='t' focus='100%' type='gradient' />\n"

str += "<o:extrusion v:ext='view' on='t' backdepth='0' foredepth='"+(parseInt(intPWidth / 10))+"' />\n"

str += "</v:PolyLine>\n"

}

//画每根柱的数据量

for (var i=0;i<this.DataSource[0].length;i++){

str+="<v:RoundRect style='left:"+(400 + parseInt(intPad * (i + 0.5),10))+";top:"+(2400 - parseInt(this.DataSource[0][i]/intMax * 2400 + 100))+";' strokeColor='transparent'>"

str+="<v:textbox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;color:#ff00ff;'>"+this.DataSource[0][i]+"</v:textbox></v:RoundRect>"

}

str += "</v:group>"

return str

}

function DR_drawLine(){ //arInt：那一组数据

this.collectData();

if(this.DataSource.length<1)return;

var intMax=0,intPWidth=parseInt(3600 / (this.DataSource[0].length>1?this.DataSource[0].length - 1:1),10);

for(var i=0;i<this.DataSource.length;i++){

for(var j=0;j<this.DataSource[i].length;j++){intMax=(intMax < this.DataSource[i][j]?this.DataSource[i][j]:intMax)}

}

intMax=(parseInt(intMax / Math.pow(10,(intMax+"").length - 1)) + 1) * Math.pow(10,(intMax+"").length - 1)

this.Rate=1;

var w=1,strObj='DR_Group'

while(w > 0){

if(document.all(strObj + w)==null)break;

w++

}

this.DrGroup[this.DrGroup.length++]=(strObj + w);

var str="<v:group id='" +(strObj + w) +"' style='500;height:500;position:absolute;' CoordSize='3600,3600'>\n"

//画底板

str += "<v:PolyLine Points='200,2400 3800,2400 3800,0 200,0 ' strokecolor='#0099ff'>\n"

str += "<v:fill color='#00cfef' angle='135' rotate='t' focus='100%' type='gradient' />\n"

str += "</v:PolyLine>\n"

//画坐标线

for(var i=1;i<10;i++){

str += "<v:PolyLine filled='false' Points='200,"+(240 * i)+" 3800,"+(240 * i)+"' strokecolor='#0099ff'/>\n"

}

for(var i=1;i<this.DataSource[0].length;i++){

str += "<v:PolyLine filled='false' Points='"+(200 + intPWidth * i)+",0 "+(200 + intPWidth * i)+",2400' strokecolor='#0099ff'>\n"

str += "<v:stroke dashstyle='Dash' />\n"

str += "</v:PolyLine>\n"

}

str += "<v:PolyLine filled='false' Points='200,-100 200,2400 3900,2400' StartArrow='Classic' EndArrow='Classic'>"

str += "<v:stroke StartArrow='Classic' EndArrow='Classic'/>"

str += "</v:PolyLine>"

//画左边的坐标

for(var i=1;i<11;i++){

str+="<v:RoundRect style='left:0;top:"+(2400 - 240 * i)+";' strokeColor='transparent'>"

str+="<v:textbox style='font-size:9pt;color:#0099ff;' inset='0pt,0pt,0pt,0pt'>"+(i*(intMax / 10))+"</v:textbox></v:RoundRect>"

}

//画底下的标签

for (var i=0;i<this.DataSource[0].length;i++){

str+="<v:line from='"+(200 + intPWidth * i)+",2410' to='"+(450 + intPWidth * i)+",2410' strokecolor='#ffffff'>"

str+="<v:TextBox style='font-size:9pt;color:#0099ff;' inset='0pt,0pt,0pt,0pt'>"+this.DataHead[i]+"</v:TextBox></v:line>"

}

//画折线

for(var j=0;j<this.DataSource.length;j++){

var st = "";

for(var i=0;i<this.DataSource[j].length;i++){

st +=" " + (200 + intPWidth*i) +","+ (2400 - parseInt(this.DataSource[j][i]/intMax * 2400,10))

}

str += "<v:PolyLine filled='false' Points='"+st+"' strokecolor='"+this.Color[(j % 12)*2]+"'/>\n"

}

//画右边的图例

for (var i=0;i<this.DataKind.length;i++){

str+="<v:line from='3850,"+(i*150 + 40)+"' to='3950,"+(i*150 + 40)+"' strokecolor='"+this.Color[(i % 12)*2]+"' strokeWeight='2' />"

str+="<v:line from='3970,"+(i*150)+"' to='4370,"+(i*150)+"' strokecolor='#ffffff' strokeWeight='2'>"

str += "<v:textbox inset='0pt,0pt,0pt,0pt' style='color:#0099ff;font-size:9pt;'>"+this.DataKind[i]+"</v:textbox></v:line>"

}

str += "</v:group>"

return str

}

function DR_changeRate(ai_Rate){

if(ai_Rate==this.Rate)return;

for(var i=0;i<this.DrGroup.length;i++){

if(document.all(this.DrGroup[i])==null){

this.DrGroup=this.DrGroup.slice(0,i).concat(this.DrGroup.slice(i+1))

i--

}else{document.all(this.DrGroup[i]).coordsize=parseInt(3600 / ai_Rate)+","+parseInt(3600 / ai_Rate);}

}

this.Rate=ai_Rate;

}

</script>

=============JsVML.htm================

<HEAD>

<STYLE>

v\:* {behavior:url(#default#VML);}

o\:* { behavior: url(#default#VML) }

.shape { behavior: url(#default#VML) }

</STYLE>

</head>

<body>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

</table>

for(var i=1;i<tblData.rows.length;i++){

var intQty=0

for(var j=1;j<tblData.rows[i].cells.length - 1;j++){

intQty += parseInt(tblData.rows[i].cells[j].innerText,10)

}

tblData.rows[i].cells[j].innerText=parseInt(intQty / (j - 1))

}

var draw=new draw3D(tblData,tDraw);

</script>

转自csdn 效果可以在这看...
http://vbb.iecn.net/showthread.php?threadid=14724