Correct, currently it doesn't. Substitution does have a performance impact (have to check/validate potential values against all places it's allowed) so we've been mindful of use. You could hack mapfile.c (see layerSubstituteString() function) and try it...
Steve -----Original Message----- From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Rahkonen Jukka Sent: Wednesday, September 25, 2013 10:57 AM To: Mapserver-Users (mapserver-users@lists.osgeo.org) Subject: [mapserver-users] Can variables be used in "PROCESSING"? Hi, Is this list correct http://mapserver.org/cgi/runsub.html#runsub? It does not mention PROCESSING. I have been thinking that it would be cool to have a WMS client which could adjust on-the-fly from the client side - PROCESSING "BANDS=1,2,3" for making diffferent RGB versions of multi-channel images - LUT, LUT_1, LUT_2 and LUT_3 for adjusting colours on-the-fly - SCALE, SCALE_1, SCALE_2 and SCALE_3 for the same and especially for setting 16-bit DEMs or measument data into visible range for on-screen work. Some clever individual could perhaps make an OpenLayers demo with cool controls like sliders and dragable LUT-curves. By fiddling with RESAMPLE and OVERSAMPLE_RATIO it would also be possible to get images fast into screen but also with top quality if that is needed for printing. -Jukka Rahkonen- _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
