Dear group,
I have generate some 'half-precision' floating point GeoTiffs that I
want to server in GeoServer (v2.15.2). I also apply an SLD color style.
However, when requesting the GeoTiff layer wthrough WMS I get wrong
colors (tiles take the color of the maximum value in the color range).
If a create the files as 32 bit, all goes fine.
Can GeoServer handle 16 bit float GeoTiffs?
Here is a gdalinfo example:
|Driver:GTiff/GeoTIFFFiles:5p_tropomi_so2vcd_epsg3857_20200304_res0.01.tiffSizeis36084,36124CoordinateSystemis:PROJCS["WGS
84 / Pseudo-Mercator",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS
84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["X",EAST],AXIS["Y",NORTH],EXTENSION["PROJ4","+proj=merc
+a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0
+units=m +nadgrids=@null +wktext
+no_defs"],AUTHORITY["EPSG","3857"]]Origin=(-20026376.390000000596046,20048966.100000001490116)PixelSize=(1110.000000000000000,-1110.000000000000000)Metadata:AREA_OR_POINT=AreaImageStructureMetadata:COMPRESSION=DEFLATE
INTERLEAVE=BAND
CornerCoordinates:UpperLeft(-20026376.390,20048966.100)(179d54' 0.00"W,
85d 3'36.00"N) Lower Left (-20026376.390,-20048673.900) (179d54'
0.00"W,85d3'35.19"S) Upper Right (20026863.610,20048966.100)
(179d54'15.76"E, 85d
3'36.00"N)LowerRight(20026863.610,-20048673.900)(179d54'15.76"E, 85d
3'35.19"S) Center ( 243.610, 146.100) ( 0d 0' 7.88"E,0d0' 4.72"N) Band 1
Block=256x256 Type=Float32, ColorInterp=Gray NoData Value=-999
Overviews: 18042x18062, 9021x9031, 4511x4516, 2256x2258, 1128x1129,
564x565, 282x283 Image Structure Metadata: NBITS=16|
Thank you.
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