Dear developers,
I have an 8-bit geotiff image that contains land cover classification results.
The dimensions of the image is 1000 x 1000 pixels. I am trying to generate
tiles with 21 zoom levels using the gdal2tiles.py script so that we can display
the results on a website. In the first step, I converted the single band
paletted image into color composite with the correct class colors using this
command:
gdal_translate -of vrt -expand rgba results.tif temp.vrt
and in the second step I used the gdal2tiles.py script in the following way but
I am getting errors:
gdal2tiles.py -p raster -z 0-20 -a 3 -v temp.vrt sample
the error is below.
Any help in explaining and solving this issue would be much appreciated.
Thank you
Mutlu..
('Input file:', '( 1000P x 1000L - 4 bands)')
NODATA: [3.0, 3.0, 3.0, 3.0]
('Preprocessed file:', '( 1000P x 1000L - 4 bands)')
KML autotest OK!
('Bounds (output srs):', -96.08910285, 42.692523704760006, -95.81960826476,
42.96201829)
('Native zoom of the raster:', 2)
Generating Base Tiles:
Tiles generated from the max zoom level:
----------------------------------------
('dataBandsCount: ', 3)
('tilebands: ', 4)
(1, '/', 1048576000000, 'sample/20/0/1023999.png')
('\tReadRaster Extent: ', (0, -1023000, 1, 1), (0, 0, 256, 256))
ERROR 5: temp.vrt: Access window out of range in RasterIO(). Requested
(0,-1023000) of size 1x1 on raster of 1000x1000.
ERROR 5: temp.vrt, band 4: Access window out of range in RasterIO(). Requested
(0,-1023000) of size 1x1 on raster of 1000x1000.
Traceback (most recent call last):
File
"/Library/Frameworks/GDAL.framework/Versions/Current/Programs/gdal2tiles.py",
line 2278, in <module>
gdal2tiles.process()
File
"/Library/Frameworks/GDAL.framework/Versions/Current/Programs/gdal2tiles.py",
line 488, in process
self.generate_base_tiles()
File
"/Library/Frameworks/GDAL.framework/Versions/Current/Programs/gdal2tiles.py",
line 1276, in generate_base_tiles
dstile.WriteRaster(wx, wy, wxsize, wysize, data,
band_list=list(range(1,self.dataBandsCount+1)))
File
"/Library/Frameworks/GDAL.framework/Versions/1.11/Python/2.7/site-packages/osgeo/gdal.py",
line 846, in WriteRaster
buf_pixel_space, buf_line_space, buf_band_space )
TypeError: not a string
--
Mutlu Ozdogan, Ph.D.
Associate Professor
Department of Forest and Wildlife Ecology &
Nelson Institute for Environmental Studies
t: (608) 262-0873
e: ozdo...@wisc.edu<mailto:ozdo...@wisc.edu>
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