Hi, You have all the debug options on for MapServer that I am aware of. Maybe you can try CONFIG "PROJ_DEBUG" "5" to see if that is more verbose?
https://proj.org/en/stable/usage/environmentvars.html#envvar-PROJ_DEBUG MapServer passes this value on as an environment variable. Maybe something has changed as the MapServer docs always use "ON" and "OFF" whereas PROJ states: > Starting with PROJ 9.3, ON can be used as an alias for 2, and OFF as an alias > for 1. Seth -- web:https://geographika.net & https://mapserverstudio.net mastodon: @[email protected] On Thu, Oct 2, 2025, at 3:20 PM, PE Lord via MapServer-users wrote: > I have Mapserver 7.6.2 compiled with proj 7.2.1 and gdal version (?). Sorry. > > I have solved an PROJ issue on my current server. I have modified the > PROJ_DATA (PROJ_LIB) sqlite database to handle properly my local projection, > including a Canadian NTv2 grid transformation. > > My ...proj/bin/projinfo, on my server seem to use the right Canadian nadgrid > file (ca_nrc_NA83SCRS.tif). > > Here my question, how to debug PROJ, through Mapserver will a high level of > verbose? > > Here my mapfile > > CONFIG "CPL_DEBUG" "ON" > CONFIG "PROJ_DEBUG" "ON" > CONFIG "CPL_CURL_VERBOSE" "ON" > CONFIG "CPL_TIMESTAMP" "ON" > CONFIG "MS_ERRORFILE" "debug_proj.log" > > > > ########################### > > LAYER > DEBUG 5 > NAME "MX9-01_20240730_000784-001_0030" > DATA "[...path...]/MX9-01_20240730_000784-001_0030.tif" > TYPE RASTER > PROJECTION > "init=epsg:3799" > END > END > > ########################### > Here the log output: > > [Wed Aug 27 10:13:25 2025].225353 > msDrawRasterLayerLow(MX9-01_20240730_000784-001_0030): entering. > [Wed Aug 27 10:13:25 2025].225880 msDrawRasterLayerGDAL(): Entering transform. > [Wed Aug 27 10:13:25 2025].225894 msDrawRasterLayerGDAL(): > src=1534,1715,419,296, dst=0,0,1300,919 > [Wed Aug 27 10:13:25 2025].225899 msDrawRasterLayerGDAL(): source raster PL > (1533.977,1715.259) for dst PL (0,0). > [Wed Aug 27 10:13:25 2025].225910 msDrawRasterLayerGDAL(): > red,green,blue,alpha bands = 1,0,0,0 > [Wed Aug 27 10:13:25 2025].251631 msDrawMap(): Layer 0 > (MX9-01_20240730_000784-001_0030), 0.026s > [Wed Aug 27 10:13:25 2025].327641 freeLayer(): freeing layer at 0x2727a80. > [Wed Aug 27 10:13:25 2025].327746 freeLayer(): freeing layer at 0x27a4850. > [Wed Aug 27 10:13:27 2025].569803 freeLayer(): freeing layer at 0x3e92d90. > [Wed Aug 27 10:13:27 2025].569862 freeLayer(): freeing layer at 0x2660f60. > > _______________________________________________ > MapServer-users mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/mapserver-users >
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