一个自认为难度比较大的问题.(有关动态生成图片)

FBugFramework 2004-06-28 03:42:17

在asp里面如何动态生成图片 ,用来显示如股票等的升降
如图:http://stockimg.sina.com.cn/chart/small/ssh000001.gif

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gjd111686 2004-06-30

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<html xmlns:v="urn:schemas-microsoft-com:vml">

<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title></title>
<style>v\:*{behavior:url(#default#vml)}/*声明v为vml变量*/</style>
</head>

<body onload="InitVRML();">
<script>
//模拟数据
var RecordSetArray=new Array();
//模拟记录条数
var iRecordCount=20;
for(iIndex=0;iIndex<iRecordCount;iIndex++)
{
var UnitArray=new Array();
UnitArray[0]=iIndex;
UnitArray[1]=Math.round(Math.random()*1000);
RecordSetArray[iIndex]=UnitArray;
}
//模拟数据Y轴最大值[范围]
var iRecordMaxY=1000;//模拟数据Y轴最大值[范围]
//坐标系统
var iScreenWidth=400;//真实宽度PX
var iScreenHeight=400;//真实高度PX
var iCoordSizeX=4000;//分隔宽度
var iCoordSizeY=4000;//分隔高度
var iCoordSizeStep=200;//坐标轴与边距
var iRectSize=100;//柱状图柱体宽度
var vGroup=null;//VRML区域
function Bar(iRecordCount)
{
VRMLID.innerHTML="";
InitVRML();
CoordSize();
CoordSizeLine();
var iStep=Math.round(iCoordSizeX/iRecordCount);
for(iIndex=1;iIndex<iRecordCount;iIndex++)
{
var iRnd=Math.round(Math.random()*(iCoordSizeY-iCoordSizeStep*2));
var vRect=document.createElement("v:rect");
vRect.style.left=iStep*iIndex;
vRect.style.top=(iCoordSizeY-iCoordSizeStep)-Math.round(RecordSetArray[iIndex][1]*(iCoordSizeY-iCoordSizeStep)/iRecordMaxY);
vRect.style.width=iRectSize;
vRect.style.height=Math.round(RecordSetArray[iIndex][1]*(iCoordSizeY-iCoordSizeStep)/iRecordMaxY);
vRect.fillColor="#EEEEEE";
vRect.title="模拟数据第"+RecordSetArray[iIndex][0]+"条的Y轴图示";
vGroup.appendChild(vRect);
}
}
function DrawLinesX(iMaxX,Object)
{
var iStep=Math.round(iCoordSizeX/iMaxX);
for(var iIndex=1;iIndex<=iMaxX;iIndex++)
{
var vLine=document.createElement("v:line");
vLine.from=iStep*iIndex+","+(iCoordSizeY-iCoordSizeStep);
vLine.to=iStep*iIndex+","+(iCoordSizeY-Math.round(iCoordSizeStep/2));
var vStroke=document.createElement("v:stroke");
vStroke.endArrow="Diamond";
vStroke.dashStyle="dot";
vLine.appendChild(vStroke);
Object.appendChild(vLine);
}
}
function DrawLinesY(iMaxY,Object)
{
var iStep=Math.round(iCoordSizeY/iMaxY);
for(var iIndex=0;iIndex<iMaxY;iIndex++)
{
var vLine=document.createElement("v:line");
vLine.from=iCoordSizeStep+","+iStep*iIndex;
vLine.to=Math.round(iCoordSizeStep/2)+","+iStep*iIndex;
var vStroke=document.createElement("v:stroke");
vStroke.endArrow="Diamond";
vStroke.dashStyle="dot";
vLine.appendChild(vStroke);
Object.appendChild(vLine);
}
}
function InitVRML()
{
vGroup=document.createElement("v:group");
vGroup.style.width=iScreenWidth+"px";
vGroup.style.height=iScreenHeight+"px";
vGroup.coordsize=iCoordSizeX+","+iCoordSizeY;

var vRect=document.createElement("v:rect");
vRect.style.width=iCoordSizeX+"px";
vRect.style.height=iCoordSizeY+"px";
vRect.fillColor="#FFFFFF";
vRect.strokeColor="#000000";
var vShadow=document.createElement("v:shadow");
vShadow.on="true";
vShadow.type="single";
vShadow.color="silver";
vShadow.offset="5pt,5pt";
vRect.appendChild(vShadow);
vGroup.appendChild(vRect);

VRMLID.appendChild(vGroup);
}
function CoordSize()
{
var vLineX=document.createElement("v:line");
vLineX.from=iCoordSizeStep+","+iCoordSizeStep;
vLineX.to=iCoordSizeStep+","+(iCoordSizeY-iCoordSizeStep);
var vStrokeX=document.createElement("v:stroke");
vStrokeX.startArrow="classic";
vStrokeX.endArrow="oval";
vStrokeX.dashStyle="single";
vLineX.appendChild(vStrokeX);
vGroup.appendChild(vLineX);

var vLineY=document.createElement("v:line");
vLineY.from=iCoordSizeStep+","+(iCoordSizeY-iCoordSizeStep);
vLineY.to=(iCoordSizeX-iCoordSizeStep)+","+(iCoordSizeY-iCoordSizeStep);
var vStrokeY=document.createElement("v:stroke");
vStrokeY.startArrow="oval";
vStrokeY.endArrow="classic";
vStrokeY.dashStyle="single";
vLineY.appendChild(vStrokeY);
vGroup.appendChild(vLineY);
}
function CoordSizeLine()
{
DrawLinesX(RecordSetArray.length,vGroup);
DrawLinesY(RecordSetArray.length,vGroup);
}
</script>
<a href="ftp://User:Password@10.70.38.10/">Down</a>
<a href="/数字金刚.doc">Doc</a>
<input type="button" value="初始设置" onclick="InitVRML();">
<input type="button" value="柱状图" onclick="Bar(RecordSetArray.length);">
<input type="button" value="饼图" onclick="window.confirm('饼图')">
<input type="button" value="折线图" onclick="window.confirm('折线图')">
<br>
<br>
<center>
<div id=VRMLID></div>
</center>
</body>

</html>

bbcbs 2004-06-30

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我用过一个动态生成曲线图图片的组件，很好用。。不过忘了放哪了

xiangyyy 2004-06-30

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C#实现

<%@ Page Language="C#" debug=true codepage="936"%>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Text" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="System.Drawing.Imaging" %>

MemoryStream tempStream = new MemoryStream();
//ImageCodecInfo ici=GetEncoderInfo("image/Bmp");
//ici=GetEncoderInfo("image/Bmp");
//Encoder encoder=;
//System.Drawing.Imaging.Encoder ec=System.Drawing.Imaging.Encoder.Quality;
//////System.Drawing.Imaging.EncoderParameter encoderParameter;
//////////////////////System.Drawing.Imaging.EncoderParameters encoderParameters;
////////////encoderParameters=new EncoderParameters(1);
/////////////encoderParameter=new EncoderParameter(ec, 100L); //图片质量
////////encoderParameters.Param[0] = encoderParameter;

b.Save(tempStream,ImageFormat.Jpeg);
//b.Save("E:\\web site\\count\\tmp.Bmp",ImageFormat.Jpeg);
//Response.Redirect("tmp.bmp");
//tempStream
Response.ContentType = "image/Jpeg";
//Bmp
//g.FillRectangle(new SolidBrush(Color.LightYellow),0,0,2,2);
Response.BinaryWrite(tempStream.ToArray());
Response.End();

flying310 2004-06-30

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用填充柱状图就能实现吧。

FBugFramework 2004-06-30

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谢谢各位的支持。

0_-!

FBugFramework 2004-06-30

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恩..很是不错。

我大概看了一下..

有些地方要修改的。..这两天忙其它事情。.
四天内结帖.(呵呵。可能还要问些问题.)

supere 2004-06-29

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不推荐用VML，对客户端浏览器有要求，建议使用组件生成图片文件

wanghr100 2004-06-29

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Thinking in VML 美洲豹
http://www.topying.com/selfuse/vml.rar

wanghr100 2004-06-29

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看看.这是用VML 画的折线.

<%dim total(7,3)
total(1,0)="中国经营报"
total(2,0)="招聘网"
total(3,0)="51Job"
total(4,0)="新民晚报"
total(5,0)="新闻晚报"
total(6,0)="南方周末"
total(7,0)="羊城晚报"

total(0,1)="#FF0000,1.5,1,2,公司1"'参数1线条的颜色，参数2线条的宽度，参数3线条的类型，参数4转折点的类型,参数5线条名称
total(1,1)=200
total(2,1)=1200
total(3,1)=900
total(4,1)=600
total(5,1)=1222
total(6,1)=413
total(7,1)=800

total(0,2)="#0000FF,1,2,3,公司2"
total(1,2)=400
total(2,2)=500
total(3,2)=1040
total(4,2)=1600
total(5,2)=522
total(6,2)=813
total(7,2)=980

total(0,3)="#004D00,1,1,3,公司3"
total(1,3)=900
total(2,3)=890
total(3,3)=1240
total(4,3)=1300
total(5,3)=722
total(6,3)=833
total(7,3)=1280

%><html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office">


<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title></title>
<style>
TD { FONT-SIZE: 9pt}
</style></head>
<body topmargin=5 leftmargin=0 scroll=AUTO>
<%call table2(total,100,90,600,250,3)%>
</body>
</html>

<%
function table2(total,table_x,table_y,all_width,all_height,line_no)
'参数含义(传递的数组，横坐标，纵坐标，图表的宽度，图表的高度,折线条数)
'纯ASP代码生成图表函数2——折线图
'作者：龚鸣(Passwordgm) QQ:25968152 MSN:passwordgm@sina.com Email:passwordgm@sina.com
'本人非常愿意和ASP,VML,FLASH的爱好者在HTTP://topclouds.126.com进行交流和探讨
'版本1.0 最后修改日期 2003-8-11
'非常感谢您使用这个函数，请您使用和转载时保留版权信息，这是对作者工作的最好的尊重。

line_color="#69f"
left_width=70
total_no=ubound(total,1)

temp1=0
for i=1 to total_no
for j=1 to line_no
if temp1<total(i,j) then temp1=total(i,j)
next
next
temp1=int(temp1)
if temp1>9 then
temp2=mid(cstr(temp1),2,1)
if temp2>4 then
temp3=(int(temp1/(10^(len(cstr(temp1))-1)))+1)*10^(len(cstr(temp1))-1)
else
temp3=(int(temp1/(10^(len(cstr(temp1))-1)))+0.5)*10^(len(cstr(temp1))-1)
end if
else
if temp1>4 then temp3=10 else temp3=5
end if
temp4=temp3
response.write "<v:rect id='_x0000_s1027' alt='' style='position:absolute;left:"&table_x+left_width&"px;top:"&table_y&"px;width:"&all_width&"px;height:"&all_height&"px;z-index:-1' fillcolor='#9cf' stroked='f'><v:fill rotate='t' angle='-45' focus='100%' type='gradient'/></v:rect>"
for i=0 to all_height-1 step all_height/5
response.write "<v:line id='_x0000_s1027' alt='' style='position:absolute;left:0;text-align:left;top:0;flip:y;z-index:-1' from='"&table_x+left_width+length&"px,"&table_y+all_height-length-i&"px' to='"&table_x+all_width+left_width&"px,"&table_y+all_height-length-i&"px' strokecolor='"&line_color&"'/>"
response.write "<v:line id='_x0000_s1027' alt='' style='position:absolute;left:0;text-align:left;top:0;flip:y;z-index:-1' from='"&table_x+(left_width-15)&"px,"&table_y+i&"px' to='"&table_x+left_width&"px,"&table_y+i&"px'/>"
response.write ""
response.write "<v:shape id='_x0000_s1025' type='#_x0000_t202' alt='' style='position:absolute;left:"&table_x&"px;top:"&table_y+i&"px;width:"&left_width&"px;height:18px;z-index:1'>"
response.write "<v:textbox inset='0px,0px,0px,0px'><table cellspacing='3' cellpadding='0' width='100%' height='100%'><tr><td align='right'>"&temp4&"</td></tr></table></v:textbox></v:shape>"
temp4=temp4-temp3/5
next
response.write "<v:line id='_x0000_s1027' alt='' style='position:absolute;left:0;text-align:left;top:0;flip:y;z-index:-1' from='"&table_x+left_width&"px,"&table_y+all_height&"px' to='"&table_x+all_width+left_width&"px,"&table_y+all_height&"px'/>"
response.write "<v:line id='_x0000_s1027' alt='' style='position:absolute;left:0;text-align:left;top:0;flip:y;z-index:-1' from='"&table_x+left_width&"px,"&table_y&"px' to='"&table_x+left_width&"px,"&table_y+all_height&"px'/>"

dim line_code
redim line_code(line_no,5)
for i=1 to line_no
line_temp=split(total(0,i),",")
line_code(i,1)=line_temp(0)
line_code(i,2)=line_temp(1)
line_code(i,3)=line_temp(2)
line_code(i,4)=line_temp(3)
line_code(i,5)=line_temp(4)
next
for j=1 to line_no
for i=1 to total_no-1
x1=table_x+left_width+all_width*(i-1)/total_no
y1=table_y+(temp3-total(i,j))*(all_height/temp3)
x2=table_x+left_width+all_width*i/total_no
y2=table_y+(temp3-total(i+1,j))*(all_height/temp3)
response.write "<v:line id=""_x0000_s1025"" alt="""" style='position:absolute;left:0;text-align:left;top:0;z-index:1' from="""&x1&"px,"&y1&"px"" to="""&x2&"px,"&y2&"px"" coordsize=""21600,21600"" strokecolor="""&line_code(j,1)&""" strokeweight="""&line_code(j,2)&""">"
select case line_code(j,3)
case 1
case 2
response.write "<v:stroke dashstyle='1 1'/>"
case 3
response.write "<v:stroke dashstyle='dash'/>"
case 4
response.write "<v:stroke dashstyle='dashDot'/>"
case 5
response.write "<v:stroke dashstyle='longDash'/>"
case 6
response.write "<v:stroke dashstyle='longDashDot'/>"
case 7
response.write "<v:stroke dashstyle='longDashDotDot'/>"
case else
end select
response.write "</v:line>"&CHR(13)
select case line_code(j,4)
case 1
case 2
response.write "<v:rect id=""_x0000_s1027"" style='position:absolute;left:"&x1-2&"px;top:"&y1-2&"px;width:4px;height:4px; z-index:2' fillcolor="""&line_code(j,1)&""" strokecolor="""&line_code(j,1)&"""/>"&CHR(13)
case 3
response.write "<v:oval id=""_x0000_s1026"" style='position:absolute;left:"&x1-2&"px;top:"&y1-2&"px;width:4px;height:4px;z-index:1' fillcolor="""&line_code(j,1)&""" strokecolor="""&line_code(j,1)&"""/>"&CHR(13)
end select
next
select case line_code(j,4)
case 1
case 2
response.write "<v:rect id=""_x0000_s1027"" style='position:absolute;left:"&x2-2&"px;top:"&y2-2&"px;width:4px;height:4px; z-index:2' fillcolor="""&line_code(j,1)&""" strokecolor="""&line_code(j,1)&"""/>"&CHR(13)
case 3
response.write "<v:oval id=""_x0000_s1026"" style='position:absolute;left:"&x2-2&"px;top:"&y2-2&"px;width:4px;height:4px;z-index:1' fillcolor="""&line_code(j,1)&""" strokecolor="""&line_code(j,1)&"""/>"&CHR(13)
end select
next

for i=1 to total_no
response.write "<v:line id='_x0000_s1027' alt='' style='position:absolute;left:0;text-align:left;top:0;flip:y;z-index:-1' from='"&table_x+left_width+all_width*(i-1)/total_no&"px,"&table_y+all_height&"px' to='"&table_x+left_width+all_width*(i-1)/total_no&"px,"&table_y+all_height+15&"px'/>"
response.write ""
response.write "<v:shape id='_x0000_s1025' type='#_x0000_t202' alt='' style='position:absolute;left:"&table_x+left_width+all_width*(i-1)/total_no&"px;top:"&table_y+all_height&"px;width:"&all_width/total_no&"px;height:18px;z-index:1'>"
response.write "<v:textbox inset='0px,0px,0px,0px'><table cellspacing='3' cellpadding='0' width='100%' height='100%'><tr><td align='left'>"&total(i,0)&"</td></tr></table></v:textbox></v:shape>"
next

tb_height=30
response.write "<v:rect id='_x0000_s1025' style='position:absolute;left:"&table_x+all_width+20&"px;top:"&table_y&"px;width:100px;height:"&line_no*tb_height+20&"px;z-index:1'/>"
for i=1 to line_no
response.write "<v:shape id='_x0000_s1025' type='#_x0000_t202' alt='' style='position:absolute;left:"&table_x+all_width+25&"px;top:"&table_y+10+(i-1)*tb_height&"px;width:60px;height:"&tb_height&"px;z-index:1'>"
response.write "<v:textbox inset='0px,0px,0px,0px'><table cellspacing='3' cellpadding='0' width='100%' height='100%'><tr><td align='left'>"&line_code(i,5)&"</td></tr></table></v:textbox></v:shape>"
response.write "<v:rect id='_x0000_s1040' alt='' style='position:absolute;left:"&table_x+all_width+80&"px;top:"&table_y+10+(i-1)*tb_height+4&"px;width:30px;height:20px;z-index:1' fillcolor='"&line_code(i,1)&"'><v:fill color2='"&line_code(i,1)&"' rotate='t' focus='100%' type='gradient'/></v:rect>"
next

end function
%>

Laone 2004-06-29