ASP进阶 用ASP创作统计饼图 柱状图等
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我们工作中经常需要将数据转化成柱状图，饼图等，以方便直观的分析数据， 这里给大家介绍一个ASP中制作饼图、柱状图的组件：csDrawGraph，csdgt.zip,因为是组件，所以我们在使用之前需要用REGSVR32.EXE 注册一下，csDrawGraph，可以在ASP中创建饼图，柱状图以及线图，其支持的格式有GIF, PNG, JPG and BMP. chartdemo.asp <%@ language=vbscript %> <html> <head> <title>csDrawGraph Demonstration</title> </head> <body bgcolor="#FFFFFF"> <P>This simple demonstration shows two graphs using the same data. The first is a bar chart:</P> <P align="center"><IMG src="chartimages.asp?Type=Bar" width="400" height="300"> </P> <P align="left">The second is a pie chart. The background colour is set to light grey to show the overall size of the image.</P> <P align="center"><IMG src="chartimages.asp?Type=Pie" width="400" height="300"> </P> </body> </html>chartimages.asp <%@ language=vbscript %> <% Response.Expires = 0 Response.Buffer = true Response.Clear Response.ContentType = "Image/Gif" Set Chart = Server.CreateObject("csDrawGraphTrial.Draw") Chart.AddData "NO> 1", 17, "ff0000" Chart.AddData "NO> 2", 28, "00ff00" Chart.AddData "NO> 3", 5, "0000ff" If Request.QueryString("Type") = "Pie" Then Chart.Title = "Sample Pie Chart" Chart.BGColor = "eeeeee" Chart.LabelBGColor = "eeeeee" Chart.TitleBGColor = "eeeeee" Response.BinaryWrite Chart.GifPie Else Chart.Title = "Sample Bar Chart" Response.BinaryWrite Chart.GifBar End If Response.End %> 程序很简单，再些不详细说明，下面看一个将数据库中的数据转换到图表的例子： lines.asp: <html> <head> <title>Line graph showing all the results</title> </head> <body> <table align=center width=400> <tr><td colspan=4><img src="gif_lines.asp" width=400 height=300></td></tr> </table> <p>Links to the other result pages:</p> <p><a href=barsbyday.asp>Bar chart showing all results for any one day</a>.</p> <p><a href=barsbycolour.asp>Bar charts showing results for each colour separately</a>.</p> </body> </html> （编辑：银川站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
