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用ASP生成Chart

王朝asp·作者佚名  2006-12-16
窄屏简体版  字體: |||超大  

<SCRIPT LANGUAGE="VBScript" RUNAT="SERVER">

function makechart(title, numarray, labelarray, color, bgcolor, bordersize, maxheight, maxwidth, addvalues)

'Function makechart version 3

'Jason Borovoy

'title: Chart Title

'numarray: An array of values for the chart

'labelarray: An array of labels coresponding to the values must me present

'color If null uses different colors for bars if not null all bars color you specify

'bgcolor Background color.

'bordersize: border size or 0 for no border.

'maxheight: maximum height for chart not including labels

'maxwidth: width of each column

'addvalues: true or false depending if you want the actual values shown on the chart

'when you call the function use : response.write makechart(parameters)

'actually returnstring would be a better name

dim tablestring

'max value is maximum table value

dim max

'maxlength maximum length of labels

dim maxlength

dim tempnumarray

dim templabelarray

dim heightarray

Dim colorarray

'value to multiplie chart values by to get relitive size

Dim multiplier

'if data valid

if maxheight > 0 and maxwidth > 0 and ubound(labelarray) = ubound(numarray) then

'colorarray: color of each bars if more bars then colors loop through

'if you don't like my choices change them, add them, delete them.

colorarray = array("red","blue","yellow","navy","orange","purple","green")

templabelarray = labelarray

tempnumarray = numarray

heightarray = array()

max = 0

maxlength = 0

tablestring = "<TABLE bgcolor='" & bgcolor & "' border='" & bordersize & "'>" & _

"<tr><td><TABLE border='0' cellspacing='1' cellpadding='0'>" & vbCrLf

'get maximum value

for each stuff in tempnumarray

if stuff > max then max = stuff end if

next

'calculate multiplier

multiplier = maxheight/max

'populate array

for counter = 0 to ubound(tempnumarray)

if tempnumarray(counter) = max then

redim preserve heightarray(counter)

heightarray(counter) = maxheight

else

redim preserve heightarray(counter)

heightarray(counter) = tempnumarray(counter) * multiplier

end if

next

'set title

tablestring = tablestring & "<TR><TH colspan='" & ubound(tempnumarray)+1 & "'>" & _

"<FONT FACE='Verdana, Arial, Helvetica' SIZE='1'><U>" & title & "</TH></TR>" & _

vbCrLf & "<TR>" & vbCrLf

'loop through values

for counter = 0 to ubound(tempnumarray)

tablestring = tablestring & vbTab & "<TD valign='bottom' align='center' >" & _

"<FONT FACE='Verdana, Arial, Helvetica' SIZE='1'>" & _

"<table border='0' cellpadding='0' width='" & maxwidth & "'><tr>" & _

"<tr><td valign='bottom' bgcolor='"

if not isNUll(color) then

'if color present use that color for bars

tablestring = tablestring & color

else

'if not loop through colorarray

tablestring = tablestring & colorarray(counter mod (ubound(colorarray)+1))

end if

tablestring = tablestring & "' height='" & _

round(heightarray(counter),2) & "'><img src='chart.gif' width='1' height='1'>" & _

"</td></tr></table>"

if addvalues then

'print actual values

tablestring = tablestring & "<BR>" & tempnumarray(counter)

end if

tablestring = tablestring & "</TD>" & vbCrLf

next

tablestring = tablestring & "</TR>" & vbCrLf

'calculate max lenght of labels

for each stuff in labelarray

if len(stuff) >= maxlength then maxlength = len(stuff)

next

'print labels and set each to maxlength

for each stuff in labelarray

tablestring = tablestring & vbTab & "<TD align='center'><" & _

"FONT FACE='Verdana, Arial, Helvetica' SIZE='1'><B> "

for count = 0 to round((maxlength - len(stuff))/2)

tablestring = tablestring & " "

next

if maxlength mod 2 <> 0 then tablestring = tablestring & " "

tablestring = tablestring & stuff

for count = 0 to round((maxlength - len(stuff))/2)

tablestring = tablestring & " "

next

tablestring = tablestring & " </TD>" & vbCrLf

next

tablestring = tablestring & "</TABLE></td></tr></table>" & vbCrLf

makechart = tablestring

else

Response.Write "Error Function Makechart: maxwidth and maxlength have to be greater " & _

" then 0 or number of labels not equal to number of values"

end if

end function

dim stuff

dim labelstuff

' Demo 1

stuff = Array(5,30)

labelstuff = Array("北京", "广州")

Response.Write makechart("Demo 1", stuff, labelstuff, null, "gold",10, 50,40,true)

</SCRIPT>

 
 
 
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