Eric Lemoine schrieb: > On Saturday, August 29, 2009, Maren Kiehl <[email protected]> wrote: > >> Hi at all. >> >> I'm searching for a function which can identify a feature by searching >> an attribute-value. >> I have the name of a feature-attribute (http://feature.attributes.name) and >> wanna search the apposite feature. After that I wanna zoom to the center >> of this >> feature(map.setCenter(feature.geometry.getBounds().getCenterLonLat(), >> zoom);). >> The problem ist: I dont know how to identify the feature by knowing the >> attribute. I get the >> attribute-value from a php-value in another page. By clicking a link on >> this page a window opens and shows a little map with the feature-point >> in the center of it. Everything (little map opens in a popup and shows the >> extent of all points) >> works except for the last step. >> Does somebody know how to get the feature? Does a function for this problem >> exist? >> > > Would something like the following work for you? > > (NAME is the attribute name, and VALUE the attribute value) > > function getFeatureByValue(layer) { > var features = layer.features; > for(var i=0; i<features.length; i++) { > var feature = features[i]; > if(feature.attributes[NAME] == VALUE) { > return feature; > } > } > } > > > >> Thanks for your support. >> Best regards, >> Maren >> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://openlayers.org/mailman/listinfo/users >> >> > > Sorry, but that doenst work. When I implement this an exception is thrown which says "layer is undefined". But I found another solution: Instead of the attribute-value "name" I took the value "the_geom" and transformed it into x and y coordinates. Now everything is fine.
Thanks for your help! Maren _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
