Hi I am an Openlayer newbee, but have now made an attempt of my first application: http://byogtrafik.ramboll.dk/Rudersdal_Kongevejen/stqj.html (it is about Road Noise Mapping and in Danish) It reads about 400 building polygons from GML-files and ad labels from the same GML files.
It works well in Firefox, Opera and Google Chrome - not fast, but stable. But in IE8 I get a lot of "Not Responding" - no errors, but just slow (and unstable - will it ever respond?). Especially the Zoom to maxExtent (the Globe button) kills it. I have tried the Profile Developer tool in IE. The Profile tells me: * 24% of time is used by setNodeDimension (under drawPolygon) * 27% of time is used by removeText (under drawGeometry) * 26% of time is used by drawText (under drawGeometry) Have I just: * Gone over the top with 400 polygons with a label? (but it works in other browsers) * Proved that IE is a bad browser? (but most of the users will be using it) Is there any way to optimize: * The GLM file? - I have already removed all unused attributes/tags. The file is only 336k * Text - are some fonts less demanding than others? * Polygons - will it help to simplify the polygons (reduce the number of points used per polygon) The code for the polygon layer ff.xml is generated by the OGR2Layers plugin in QGis. I have however added the labelling myself and I must rename the file from ff.gml to ff.xml and change the code accordingly to make it function. Regards Morten _______________________________________________ Users mailing list us...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/openlayers-users
