Hi, I have no success to find any info on the NODATA question in the floating point raster.
Is this kind of raster suitable for use on mapserver ? Thx. 2015-08-18 10:27 GMT+02:00 Andrea Peri <aperi2...@gmail.com>: > HI, > > The question of NODATA processing command is not completelly clear afaik. > Infact I found a patch from warmerdam: > > https://trac.osgeo.org/mapserver/ticket/2404 > > Where it speak explicitly of a PROCESSING "NODATA" setting. > >>I would note that OFFSITE is still supported, and the usual PROCESSING >>"NODATA=OFF" >mechanism can be used to disable using GDAL level nodata. > > A. > > > 2015-08-18 9:28 GMT+02:00 Andrea Peri <aperi2...@gmail.com>: >> Hi, >> >> I have a clearly response from the log. >> >> The nodata is unsupported for this kind of rasters. >> >>> LoadGDALImage(rt_sat.LC8191.rt.attuale): NODATA value -9999 in GDAL >>>file or PROCESSING directive largely ignored. Not yet fully supported for >>>unclassified scaled data. The NODATA value is excluded from auto-scaling >>>min/max computation, but will not be transparent. >> >> So I must found another solution for my rasters. >> >> Regards. >> >> >> >> 2015-08-18 9:08 GMT+02:00 Andrea Peri <aperi2...@gmail.com>: >>> So my question is a little different. >>> >>> Seem that mapserver was not able to automatically understand the >>> NODATA values of floating point rasters. >>> >>> In my usecase: the NODATA value is -9999.0 >>> I produce the catalog using gdaltindex, and apply the result to mapserver 7. >>> >>> The result is this: >>> >>> http://tinyurl.com/ndsdyr8 >>> >>> The only partially solution I found was to set >>> OFFSITE 0 0 0 >>> but it is acceptable for my usecase because the black color is a color >>> really available inside the rasters and it is not usable as a >>> transparent color. >>> >>> Is this an issue for mapserver 7 ? >>> >>> Thx, >>> >>> A. >>> >>> >>> >>> 2015-08-17 16:11 GMT+02:00 Andrea Peri <aperi2...@gmail.com>: >>>> Hi Jukka. >>>> >>>> Perhaps you have right ! >>>> >>>> The NODATA setting is an ancient setting that I reuse always in my >>>> mapfiles but only now I notice that the mapserver document don't >>>> report him. >>>> So more probably it is a false setting. >>>> >>>> But , if the nodata setting dont exist, how say to the mapserver to >>>> filter the nodata of a floating raster ? >>>> >>>> Thx. >>>> >>> >>>>> -- >>>>> ----------------- >>>>> Andrea Peri >>>>> . . . . . . . . . >>>>> qwerty àèìòù >>>>> ----------------- >>>>> _______________________________________________ >>>>> mapserver-users mailing list >>>>> mapserver-users@lists.osgeo.org >>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >>>> >>>> >>>> >>>> -- >>>> ----------------- >>>> Andrea Peri >>>> . . . . . . . . . >>>> qwerty àèìòù >>>> ----------------- >>> >>> >>> >>> -- >>> ----------------- >>> Andrea Peri >>> . . . . . . . . . >>> qwerty àèìòù >>> ----------------- >> >> >> >> -- >> ----------------- >> Andrea Peri >> . . . . . . . . . >> qwerty àèìòù >> ----------------- > > > > -- > ----------------- > Andrea Peri > . . . . . . . . . > qwerty àèìòù > ----------------- -- ----------------- Andrea Peri . . . . . . . . . qwerty àèìòù ----------------- _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
