This seems to be a common problem, yet I find it difficult to get a solution by searching list archives and so forth and hacking at it (4 hours now).
I have slope rasters for a large area - they are slightly overlapping 32-bit float GeoTIFFs. The images have a 1-pixel border with the value -9999. Otherwise slope is shown as percent and ranges from 0 to just over 7000%. I just want to turn off the 'nodata' pixels - those with values -9999 and keep my LUT values as shown below. I am accessing this a WMS. MapServer 6.2 (MS4W 3.0.4). I have tried PROCESSING "NODATA=-9999" and PROCESSING "SCALE=0,7000" and PROCESSING "LUT=-9999:0,0:10,50:200,100:225,7000:255" OFFSITE 0 0 0 And various combinations, etc. I also tried setting pixel queries using STYLE blocks but that seemed really clunky and I couldn't see how to get what I want. In the first two cases, it seems like the directives are just ignored. In the last case I get an error message when I use a negative value in my LUT. Trying to avoid reprocessing all the tiles... Thanks for any help. =============================== Michael Smith MS GISP State GIS Manager, Maine Office of GIS State of Maine, Office of Information Technology michael.smith _at_ maine.gov 207-215-5530 Board Member, Maine GeoLibrary Education Chair, Maine GIS Users Group State Rep, National States Geographic Information Council [cid:[email protected]] State House Station 145 51 Commerce Drive Augusta, ME 04333-0145 69o 47' 58.9"W 44o 21' 54.8"N
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