you could use SLD for WMS to accomplish this task. most likely you have to create a sld file for every attribute you wish to visualize.
An example, that shows different styling for the same layer based on different rules (not always by attribute) http://gis.ibbeck.de/ginfo/apps/OLExamples/OL210/MapServer_SLD_World/MapServ er_SLD_World.asp Regards, Arnd _____ Von: [email protected] [mailto:[email protected]] Im Auftrag von Andreas Forø Tollefsen Gesendet: Dienstag, 5. August 2014 14:51 An: [email protected] Betreff: [OpenLayers-Users] Class based fill of polygons Hi all, I am new to OpenLayers (so forgive me in advance). I have a polygon layer in GeoServer (from a shapefile) consisting of 487 features and 15 statistical attributes of socio-economic variables. What I want to accomplish is to visualize these 15 variables in a web map service, where the user can select the variable he/she wants to visualize and that the color fill represents low to high on the selected variable (white to dark grey i.e.). So far I have managed to set up an OpenLayers page that reads the GeoServer layer, and outputs the attribute table below the map when I click one of the features. However, I am still lost as to how I should proceed to create the visualization. One example of an end-result could look similar to this: http://sedac.ciesin.columbia.edu/maps/client So my question is. What styling code am I looking for, and could this type of solution be created out of the one layer, or do I need one layer for each attribute? And if I need to create a rule based class interval, do I have to do this manually for each class, for each attribute? Any example code that points to the suggested direction would be great! thanks! Best, Andreas --- Diese E-Mail ist frei von Viren und Malware, denn der avast! Antivirus Schutz ist aktiv. http://www.avast.com
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