[GRASS-dev] Documentation glitch

Helmut Kudrnovsky hellik at web.de
Fri Nov 23 11:19:58 PST 2018 

Markus Neteler wrote
> Hi Luí­s,
> 
> Am Fr., 23. Nov. 2018, 16:32 hat Luí­s Moreira de Sousa <

> luis.de.sousa@

>> geschrieben:
> 
>> Dear all,
>>
>> I bumped over a glitch with the documentation for r.out.gdal. One of the
>> examples is:
>> r.out.gdal in=elevation output=elevation.tif type=Float64 \
>> createopt="COMPRESS=DEFLATE"
>>
>> But compression is applied only if the double quotes are left out:
>> r.out.gdal in=elevation output=elevation.tif type=Float64 \
>> createopt=COMPRESS=DEFLATE
>>
> 
> Thanks but I cannot confirm this. The GRASS GIS parser takes the right
> side
> as a string, I always use it quoted on command line.
> 
> Anyone else who can comment here?

tested here in winGRASS

#### with quotes

r.out.gdal input=elevation at PERMANENT output=D:\temp\testtt\test.tif
format=GTiff type=Float64 createopt=COMPRESS=DEFLATE
Checking GDAL data type and nodata value...
ERROR 6: SetColorTable() only supported for Byte or UInt16
bands in TIFF format.
Using GDAL data type <Float64>
Input raster map contains cells with NULL-value (no-data). The value -1.#IND
will be used to represent no-data values in the input map. You can specify a
nodata value with the nodata option.
Exporting raster data to GTiff format...
r.out.gdal complete. File <D:\temp\testtt\test.tif> created.

D:\temp\testtt>gdalinfo test.tif
Driver: GTiff/GeoTIFF
Files: test.tif
Size is 527, 475
Coordinate System is:
PROJCS["NAD83(HARN) / North Carolina",
    GEOGCS["NAD83(HARN)",
        DATUM["NAD83_High_Accuracy_Reference_Network",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            TOWGS84[0,0,0,0,0,0,0],
            AUTHORITY["EPSG","6152"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4152"]],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["standard_parallel_1",36.16666666666666],
    PARAMETER["standard_parallel_2",34.33333333333334],
    PARAMETER["latitude_of_origin",33.75],
    PARAMETER["central_meridian",-79],
    PARAMETER["false_easting",609601.22],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["X",EAST],
    AXIS["Y",NORTH],
    AUTHORITY["EPSG","3358"]]
Origin = (629992.500000000000000,228513.000000000000000)
Pixel Size = (28.500000000000000,-28.500000000000000)
Metadata:
  AREA_OR_POINT=Area
  TIFFTAG_SOFTWARE=GRASS GIS 7.7.svn with GDAL 2.3.2
Image Structure Metadata:
  COMPRESSION=DEFLATE
  INTERLEAVE=BAND
Corner Coordinates:
Upper Left  (  629992.500,  228513.000) ( 78d46'27.71"W, 35d48'35.02"N)
Lower Left  (  629992.500,  214975.500) ( 78d46'28.93"W, 35d41'15.74"N)
Upper Right (  645012.000,  228513.000) ( 78d36'29.41"W, 35d48'33.50"N)
Lower Right (  645012.000,  214975.500) ( 78d36'31.54"W, 35d41'14.23"N)
Center      (  637502.250,  221744.250) ( 78d41'29.40"W, 35d44'54.73"N)
Band 1 Block=527x1 Type=Float64, ColorInterp=Gray
  Description = elevation at PERMANENT
  NoData Value=nan
  Metadata:
    COLOR_TABLE_RULES_COUNT=5
    COLOR_TABLE_RULE_RGB_0=5.557879e+001 7.572901e+001 0 191 191 0 255 0
    COLOR_TABLE_RULE_RGB_1=7.572901e+001 9.587922e+001 0 255 0 255 255 0
    COLOR_TABLE_RULE_RGB_2=9.587922e+001 1.160294e+002 255 255 0 255 127 0
    COLOR_TABLE_RULE_RGB_3=1.160294e+002 1.361797e+002 255 127 0 191 127 63
    COLOR_TABLE_RULE_RGB_4=1.361797e+002 1.563299e+002 191 127 63 20 20 20

#### without quotes

C:\>r.out.gdal input=elevation at PERMANENT output=D:\temp\testtt\test3.tif
format=GTiff type=Float64 createopt="COMPRESS=DEFLATE"
Checking GDAL data type and nodata value...
 100%
Using GDAL data type <Float64>
Input raster map contains cells with NULL-value (no-data). The value
-1.#IND will be used to represent no-data values in the input map. You can
specify a nodata value with the nodata option.
Exporting raster data to GTiff format...
ERROR 6: SetColorTable() only supported for Byte or UInt16 bands in TIFF
format.
 100%
r.out.gdal complete. File <D:\temp\testtt\test3.tif> created.

D:\temp\testtt>gdalinfo test3.tif
Driver: GTiff/GeoTIFF
Files: test3.tif
Size is 527, 475
Coordinate System is:
PROJCS["NAD83(HARN) / North Carolina",
    GEOGCS["NAD83(HARN)",
        DATUM["NAD83_High_Accuracy_Reference_Network",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            TOWGS84[0,0,0,0,0,0,0],
            AUTHORITY["EPSG","6152"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4152"]],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["standard_parallel_1",36.16666666666666],
    PARAMETER["standard_parallel_2",34.33333333333334],
    PARAMETER["latitude_of_origin",33.75],
    PARAMETER["central_meridian",-79],
    PARAMETER["false_easting",609601.22],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["X",EAST],
    AXIS["Y",NORTH],
    AUTHORITY["EPSG","3358"]]
Origin = (629992.500000000000000,228513.000000000000000)
Pixel Size = (28.500000000000000,-28.500000000000000)
Metadata:
  AREA_OR_POINT=Area
  TIFFTAG_SOFTWARE=GRASS GIS 7.7.svn with GDAL 2.3.2
Image Structure Metadata:
  COMPRESSION=DEFLATE
  INTERLEAVE=BAND
Corner Coordinates:
Upper Left  (  629992.500,  228513.000) ( 78d46'27.71"W, 35d48'35.02"N)
Lower Left  (  629992.500,  214975.500) ( 78d46'28.93"W, 35d41'15.74"N)
Upper Right (  645012.000,  228513.000) ( 78d36'29.41"W, 35d48'33.50"N)
Lower Right (  645012.000,  214975.500) ( 78d36'31.54"W, 35d41'14.23"N)
Center      (  637502.250,  221744.250) ( 78d41'29.40"W, 35d44'54.73"N)
Band 1 Block=527x1 Type=Float64, ColorInterp=Gray
  Description = elevation at PERMANENT
  NoData Value=nan
  Metadata:
    COLOR_TABLE_RULES_COUNT=5
    COLOR_TABLE_RULE_RGB_0=5.557879e+001 7.572901e+001 0 191 191 0 255 0
    COLOR_TABLE_RULE_RGB_1=7.572901e+001 9.587922e+001 0 255 0 255 255 0
    COLOR_TABLE_RULE_RGB_2=9.587922e+001 1.160294e+002 255 255 0 255 127 0
    COLOR_TABLE_RULE_RGB_3=1.160294e+002 1.361797e+002 255 127 0 191 127 63
    COLOR_TABLE_RULE_RGB_4=1.361797e+002 1.563299e+002 191 127 63 20 20 20

it seems in both ways the tifs are compressed



-----
best regards
Helmut
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