Hi Asen: Hmmm… What version of MapServer and GDAL? The scaling should be happening in GDAL before the data hit MapServer so the [pixel] values MapServer gets are already between 0-255 in both of your cases. What I don’t know is what GDAL does with values outside the scaling range – so with SCALE=10,20 what do 5 or 50 get mapped to.
Do you have a sample GeoTiff to play with? --Steve From: mapserver-users [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Radov, Asen (GSFC-619.0)[UNIVERSITY OF MARYLAND] Sent: Wednesday, June 12, 2019 3:40 PM To: mapserver-users@lists.osgeo.org Subject: [mapserver-users] Stretching subset of a raster This message may be from an external email source. Do not select links or open attachments unless verified. Report all suspicious emails to Minnesota IT Services Security Operations Center. Hello, Can someone help me with this issue? https://gis.stackexchange.com/questions/316651/mapserver-processing-scale-a-b-does-not-stretch-data<https://gcc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Furldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-3A__gis.stackexchange.com_questions_316651_mapserver-2Dprocessing-2Dscale-2Da-2Db-2Ddoes-2Dnot-2Dstretch-2Ddata%26d%3DDwMGaQ%26c%3DApwzowJNAKKw3xye91w7BE1XMRKi2LN9kiMk5Csz9Zk%26r%3De281LxOLUXWX77lCDwwDG7yS4rW9wU7C6637XRybRqc%26m%3DNS38yaLTmsm6irtRXIRVXd-7QakCAwBaL1ubY3PECjs%26s%3DP-SLcTl5e-OHR1L68wOjGqdURUiDhstrL6ORn5w3rbY%26e%3D&data=02%7C01%7Csteve.lime%40state.mn.us%7C8bed199fd45341a12a8d08d6ef776981%7Ceb14b04624c445198f26b89c2159828c%7C0%7C0%7C636959693533127749&sdata=KbsYs7Is173nVr2We5iTpgMoY%2B00bGG9KXu1kSXlxlk%3D&reserved=0> Any help is greatly appreciated. Thank you, Asen Radov NASA Goddard Space Flight Center / Code 619 Phone: 301-614-6517 E-mail: asen.s.ra...@nasa.gov<mailto:asen.s.ra...@nasa.gov>
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