coldfusion - cfchart ignores my scalefrom value -

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i have following codes in page.

the style variable holds custom style. 

  <cfchart chartheight="450" chartwidth="550" gridlines="9"   yaxistitle="score" scalefrom="20" scaleto="100" style="#style#"   format="png" >          <cfchartseries query="variables.chart_query" type="scatter"   seriescolor="##000000" itemcolumn="myitem" valuecolumn="myscore"/>      </cfchart>

before begin, please see chart_good.jpg. how want report come up. on x-axis, there 3 items long @ least 1 of them has values. if item not have values (i.e. 2010), there not marker in chart.

the problem occurs when 1 item has value. please see chart_bad.jpg. can see, 2008 , 2010 not have values; y-axis scaled 0 100. have tried setting 1 of items (ex. 2008) value of 0 or off chart; scale according off-the-chart value , 2009 value. in short, have have @ least 2 items values between 20 , 100 in order cfchart scale 20 100.

my question is, how can correct issue cfchart scale 20 100? running cf9.

what inside style variable?

i suggest not using scalefrom="" , scaleto="" in cfchart tag can buggy sometimes. believe coldfusion's cfchart tag attempts scale chart automatically deems best fit. instead build chart's minimum , maximum scales inside framechart tag.

example of style variable build chart

<cfsavecontent variable="style">   <?xml version="1.0" encoding="utf-8"?>    <framechart is3d="false" font="arial-11-bold">     <frame xdepth="0" ydepth="0" outline="black" lightcolor="#cccccc" darkcolor="#cccccc"             wallcolor="#cccccc" framesize="5" dashsize="3" gridcolor="#333333">         <background type="horizontalgradient" maxcolor="#828eb0"/>     </frame>        <!---  bread , butter             note: if use variables scalemin , scalemax            make sure surround them cfoutput tag     --->      <yaxis scalemin="20" scalemax="100">     <!--- --------------------- --->          <labelformat style="currency" pattern="#,##0"/>         <parseformat pattern="#,##0"/>         <titlestyle></titlestyle>     </yaxis>      <legend allowspan="true" isvisible="false" placement="bottom" valign="bottom" foreground="black"             ismultiline="true">         <decoration style="none"/>     </legend>      <elements outline="black" shapesize="40"/>     <popup background="#748ba6" foreground="white"/>     <paint palette="modern" paint="plain" isvertical="true"/>     <insets right="5"/>     </framechart>  </cfsavecontent>

then have load variable style attribute mentioned.

<cfchart format="png" chartwidth="550" chartheight="175" style="#style#">

also great resource use, webcharts program in c:/coldfusion/charting/ directory. open webcharts.bat, create custom chart, copy xml code style variable, , viola!

make sure remove scaleto= , scalefrom= cfchart tag if decide go route.


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