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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hi John: The ids variable is used to perform a runtime substitution. It’s not a MapServer specific variable, just something I used in that particular example. In the mapfile here’s the county layer:<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> LAYER<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> NAME county<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> STATUS OFF<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> DATA "data/bdry_counpy2_gen500"<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> TYPE POLYGON<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> CLASS<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> EXPRESSION ('[COUN]' in '%ids%')<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> STYLE <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> COLOR "#BD9E5D" # "#A27528" <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> OUTLINECOLOR 50 50 50 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> END<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> END<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> CLASS<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> COLOR 255 255 255<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> OUTLINECOLOR 50 50 50 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> END <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> TEMPLATE "templates/county_example.html"<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> END<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The value for the CGI variable ids is substituted into the first class expression at runtime. So, if ids=1,2,3,4,5 then the class expression becomes (’[COUN]’ in ‘1,2,3,4,5’). Ideally one should set a validation pattern for the ids variable to limit it’s possible values.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>So, once the expression is changed if the attribute COUN is in the list of ids then we draw with the pukey brown, if not, then draw white. Does this help?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Steve<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> mapserver-users-bounces@lists.osgeo.org [mailto:mapserver-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Jackson, John<br><b>Sent:</b> Friday, November 26, 2010 7:54 AM<br><b>To:</b> mapserver-users@lists.osgeo.org<br><b>Subject:</b> [mapserver-users] shpxy example<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>HI again all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m working on a project where I’m trying to do the same thing as the shapexy example linked from http://mapserver.org/output/imagemaps.html<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’ve got an html imagemap working, and enough javascript together that it correctly concatenates a link, but the link doesn’t end up working…<o:p></o:p></p><p class=MsoNormal>The part I don’t understand how to get the map working in map mode. I’m not understanding the “ids” variable that is getting passed to mapserver. Are the id’s a field in the data set? I don’t see any documentation for it anywhere, and when I pass it, I just get my map back without anything selected. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Again, thanks in advance for your help.<o:p></o:p></p><p class=MsoNormal>Hope everyone had a wonderful thanksgiving.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>--John Jackson<o:p></o:p></p><p class=MsoNormal>--Deputy Auditor<o:p></o:p></p><p class=MsoNormal>--Franklin County Ohio<o:p></o:p></p></div></body></html>