The MINDISTANCE parameter is only useful within a tile so that's why you continue to see duplicates. One labeling process doesn't know about the other. One solution would be to use a smarter tiling engine than simply WMS. I believe both TileCache and ka-map both support the concept of metatiles which can really help with this problem.
Steve >>> On 7/27/2007 at 10:28 AM, in message <[EMAIL PROTECTED]>, fend0009 <[EMAIL PROTECTED]> wrote: > Hi list: >> >> I am a newbie to OpenLayers and trying to develop an application that will >> display names for economic development regions as in the example below. >> >> http://maps.socsci.umn.edu/~fend0009/2006/My2006/OpenLayers/OpenLayers.html >> >> I discovered that although I set the mindistance of labels to 200 pixels in >> the mapfile I still get duplicate labels for bigger regions. Does anyone > have >> a strategy to cope with this problem??? Any pointer will be highly >> appreciated. >> >> Jessica >> >> MAP >> NAME 'OpenLayers' >> EXTENT 125000 4785000 788000 5489000 >> UNITS METERS >> SIZE 300 400 >> ......... >> >> LAYER >> NAME 'county' >> TYPE POLYGON >> STATUS OFF >> DATA '/home/fend0009/public_html/2006/My2006/OpenLayers/Data/county' >> CLASS >> NAME 'County Boundaries' >> STYLE >> COLOR 255 255 0 >> OUTLINECOLOR 0 0 0 >> END >> END >> TOLERANCE 0 >> METADATA >> WMS_TITLE 'Minnesota County Boundaries' >> WMS_SRS 'epsg:26915' >> END >> END >> >> LAYER >> NAME 'regions' >> TYPE POLYGON >> STATUS OFF >> DATA > '/home/fend0009/public_html/2006/My2006/OpenLayers/Data/ED_Regions' >> LABELITEM 'EDR_2' >> CLASSITEM 'EDR' >> CLASS >> NAME 'Region 1' >> EXPRESSION ('[EDR]' eq 'Region 1') >> STYLE >> COLOR 189 158 120 >> OUTLINECOLOR 0 0 0 >> END >> LABEL >> SIZE MEDIUM >> COLOR 0 0 0 >> OUTLINECOLOR 255 255 255 >> MINDISTANCE 200 >> PARTIALS FALSE >> END >> END >> CLASS >> NAME 'Region 2' >> EXPRESSION ('[EDR]' eq 'Region 2') >> STYLE >> COLOR 203 201 226 >> OUTLINECOLOR 0 0 0 >> END >> LABEL >> SIZE MEDIUM >> COLOR 0 0 0 >> OUTLINECOLOR 255 255 255 >> MINDISTANCE 200 >> PARTIALS FALSE >> END >> END >> ........... >> METADATA >> WMS_TITLE 'Economic Development' >> WMS_SRS 'epsg:26915' >> END >> END > > _______________________________________________ > Users mailing list > [email protected] > http://openlayers.org/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
