怎么样用OWC生成的图表生成图片

[chinabh]

我已经用OWC生成了图表，可客户端只有安装了OFFICE才能看到，我想生成图表并导出成图片，我在有的网站上看到过，但不知道怎么实现的？？

[kendo7]

http://community.csdn.net/Expert/topic/4053/4053276.xml?temp=.2854273

[zhangjinzhicn]

www.wave12.com 图表组件

[lqflsh]

<%@ Language=VBScript %>
<%
Option Explicit
'Response.Expires = -1
'Response.ContentType = "image/gif"

'页面级对象
'--------------------
Dim m_cn '链接对象
Dim m_rs '记录集对象
Dim m_cspace 'OWC.ChartSpace object
Dim m_fso '文件系统对象
Dim m_objBinaryFile '二进值文件流对象

Dim m_sYear '需要查询的年份

Dim sSQL '执行的SQL 语句
Dim c 'OWC 常量对象
Dim cht '图表临时参考变量
Dim ax '数轴的临时参考变量
Dim fnt 'OWCFont字体的临时参考变量
Dim sFullFileName '输出GIF文件的临时参考路径

'获得查询年份，缺省为2002
m_sYear = Request.QueryString("year")
if len(m_sYear) = 0 then m_sYear = "2002"

'创建一个ADO链接和记录集对象
set m_cn = Server.CreateObject("ADODB.Connection")
set m_rs = Server.CreateObject("ADODB.Recordset")

'链接到Access数据库，使用客户端的游标引擎打开记录集
m_cn.Open "provider=microsoft.jet.oledb.4.0;data source=" & Server.MapPath(".") & "\data.mdb"
sSQL = "SELECT Month([OrderDate]) AS [Month], Invoices.Salesperson, " & _
"Sum(Invoices.ExtendedPrice) AS Sales FROM Invoices " & _
"WHERE Invoices.OrderDate between #1/1/" & m_sYear & "# and #12/31/" & m_sYear & "# " & _
"GROUP BY Month([OrderDate]), Invoices.Salesperson"
m_rs.CursorLocation = 3 'adUseClient
m_rs.Open sSQL, m_cn, 3 'adOpenStatic

'增加一个带有图例的簇列图表
set m_cspace = server.CreateObject("OWC.Chart")
set cht = m_cspace.Charts.Add()
set c = m_cspace.Constants
cht.Type = c.chChartTypeLineMarkers
'cht.Type = c.chChartTypeLineStacked
cht.HasLegend = True

'设置图表的数据源，把销售人添加到序列名称，销售月份添加到分类组，销售金额作为图表中各项取值

set m_cspace.DataSource = m_rs
cht.SetData c.chDimSeriesNames, 0, "Salesperson"
cht.SetData c.chDimCategories, 0, "Month"
cht.SetData c.chDimValues, 0, "Sales"

'增加一个图表标题，并格式化标题
cht.HasTitle = True
cht.Title.Caption = m_sYear & "的销售金额 "
set fnt = cht.Title.Font
fnt.Name = "宋体"
fnt.Size = 10
fnt.Bold = True

'对分类轴添加标题，并格式化标题
set ax = cht.Axes(c.chAxisPositionBottom)
ax.HasTitle = True
ax.Title.Caption = "月份"
set fnt = ax.Title.Font
fnt.Name = "宋体"
fnt.Size = 8
fnt.Bold = True

'对数值轴添加标题，并格式化标题
set ax = cht.Axes(c.chAxisPositionLeft)
ax.NumberFormat = "Currency"
ax.HasTitle = True
ax.Title.Caption = "元"
set fnt = ax.Title.Font
fnt.Name = "宋体"
fnt.Size = 8
fnt.Bold = True

'用一个临时变量名保存当前文件，这个文件名是唯一的
set m_fso = CreateObject("Scripting.FileSystemObject")
sFullFileName = Server.MapPath(".") & "\" & m_fso.GetTempName()
m_cspace.ExportPicture sFullFileName, "GIF", 800, 400

'使用 On Error Resume Next语句是为了确保我们删除了临时文件，即使一些函数调用失败
on error resume next

'GIF文件已经输出，我们可以通过COM组件把它的内容发送到客户端
set m_objBinaryFile = server.CreateObject("BinFileWrite.GetFileStream")
'Response.BinaryWrite m_objBinaryFile.GetFileBytes(CStr(sFullFileName))
m_objBinaryFile.SendBinFile CStr(sFullFileName),"image/GIF",TRUE,FALSE,TRUE,TRUE,TRUE
'GIF文件已经不需要了可以删除了
m_objBinaryFile.DeleteFile CStr(sFullFileName)

%>

[chinabh]

我按lqflsh的方法去试试，大家有什么新的思路或方法快来发表一下高见呀

[chinabh]

thank you lqflsh，佩服！