[gdal-dev] gdal2tiles.py crashes

[Sven Geggus]

I try to generate Google compatible tiles from one big rasterimage (EPSG:4326).

This does however not work:

Input (out-4326.img):
================================================================================
  Driver: HFA / Erdas Imagine Images (.img)
  Size: 87231 x 57321 x 3
  Projection: GEOGCS["WGS_1984",DATUM["WGS_1984",SPHEROID["WGS
  84",6378137,298.2572235630016],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4326"]]
  NSEW:  (50.068567784495805, 48.740330987425509, 13.196098581605034,
  11.174790090035813)
Projection detected as EPSG:4326
Generating of KML is possible
Output (../lvg-by-slippymap/):
================================================================================
  Format of tiles: PNG / Portable Network Graphics
  Size of a tile: 256 x 256 pixels
  Count of tiles: 101974
  Zoom levels of the pyramid: 9
  Pixel resolution by zoomlevels: [0.011864015633013961,
  0.0059320078165069805, 0.0029660039082534903,
  0.0014830019541267451, 0.00074150097706337256,
  0.00037075048853168628, 0.00018537524426584314,
  9.268762213292157e-05, 4.6343811066460785e-05,
  2.3171905533230393e-05]
--------------------------------------------------------------------------------
Zoom 9 - pixel 0.00002317190553323039 131072
--------------------------------------------------------------------------------
1/101974 ../lvg-by-slippymap/9/0/0.png [0, 0] [0, 57065] [256, 256]
[256, 256]
Traceback (most recent call last):
  File "/usr/bin/gdal2tiles.py", line 875, in ?
    writetile( filename, data, dxsize, dysize, bands)
  File "/usr/bin/gdal2tiles.py", line 75, in writetile
    alpha.WriteArray( alphaarray, 0, tilesize-dysize )
  File "/usr/lib/python2.4/site-packages/osgeo/gdal.py", line 782, in WriteArray
    return gdalnumeric.BandWriteArray( self, array, xoff, yoff )
  File "/usr/lib/python2.4/site-packages/osgeo/gdal_array.py", line 157, in BandWriteArray
    raise ValueError, "array does not have corresponding GDAL data type"
ValueError: array does not have corresponding GDAL data type

Regards

Sven

-- 
"In my opinion MS is a lot better at making money than it is at making good
operating systems" (Linus Torvalds, August 1997)

/me is giggls at ircnet, http://sven.gegg.us/ on the Web