Hot answers tagged mapserver
You can setup OUTPUTFORMAT declarations which leverage MapServer's use of OGR for custom output formats (including CSV, GeoJSON). See the documentation for further details. Update: this does not appear to be the case for GetPropertyValue requests, only GetFeature requests.
If you mean to have 1-4 adjacent color boxes at bottom-left, top-left, bottom-right, and top-right positions then I would do it by having one square symbol with points POINTS 0 0 0 1 1 1 1 0 0 0 END Then I would make four copies of the symbol with different ANCHORPOINTs as documented in http://www.mapserver.org/mapfile/symbol.html. ...
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