[GRASS-dev] Re: [GRASS GIS] #73: r.out.gdal tiff output does not work

GRASS GIS trac at osgeo.org
Fri Feb 29 22:03:29 EST 2008


#73: r.out.gdal tiff output does not work
----------------------+-----------------------------------------------------
  Reporter:  helena   |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect   |      Status:  new                      
  Priority:  major    |   Milestone:  6.4.0                    
 Component:  default  |     Version:  svn-trunk                
Resolution:           |    Keywords:  r.out.gdal, tiff         
----------------------+-----------------------------------------------------
Comment (by warmerdam):

 Helena,

 I'm coming into this rather late, and just skimming things.  I looked at
 your ortho_2001_t7921_1m.tif file (no smaller files demostrating the
 problem!) and I see it is 32bit integer pixel values.  I'm not surprised
 lots of packages can't read this.

 I looked at lakes.tif and it seems very similar to the ortho image in
 configuration - also one 32bit integer sample.  So I'm surprised that it
 is readable and the ortho image is not in some (unnamed?) application.

 PS. it would be convenient to post tiffinfo reports for some of the
 problem files to learn more without having to download them.  For instance
 the ortho report is:

 {{{
 TIFF Directory at offset 0x23768d2 (37185746)
   Image Width: 3048 Image Length: 3048
   Bits/Sample: 32
   Sample Format: signed integer
   Compression Scheme: None
   Photometric Interpretation: min-is-black
   Samples/Pixel: 1
   Rows/Strip: 1
   Planar Configuration: single image plane
   Tag 33550: 1.000000,1.000000,0.000000
   Tag 33922:
 0.000000,0.000000,0.000000,637033.000000,222504.000000,0.000000
   Tag 34735:
 1,1,0,16,1024,0,1,1,1025,0,1,1,1026,34737,24,0,2048,0,1,4269,2049,34737,6,24,2054,0,1,9102,3072,0,1,32767,3074,0,1,32767,3075,0,1,8,3076,0,1,9001,3078,34736,1,2,3079,34736,1,3,3084,34736,1,1,3085,34736,1,0,3086,34736,1,4,3087,34736,1,5
   Tag 34736:
 33.750000,-79.000000,36.166667,34.333333,609601.220000,0.000000
   Tag 34737: Lambert Conformal Conic|grs80|
   Tag 42112: <GDALMetadata>
   <Item name="COLOR_TABLE_RULES_COUNT" sample="0">1</Item>
   <Item name="COLOR_TABLE_RULE_RGB_0" sample="0">0.000000e+00 2.550000e+02
 0 0 0 255 255 255</Item>
 </GDALMetadata>
 }}}

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/73#comment:7>
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