[Thuban-list] problems loading/displaying raster images

Moritz Lennert mlennert at club.worldonline.be
Mon Jul 7 15:58:10 CEST 2003


I'm having trouble with raster images. After removing one version of the
GDAL library (I had two installed), I got Thuban to recognize the
existance of the other on my machine, "About" now gives me: GDAL

However, when I try to load/visualize raster data, I only get an empty
screen. I've tried with the sample Iceland data set (loading the
pre-established session named "iceland_sample_raster.thuban") and with a
landsat image in tif format (from http://glcf.umiacs.umd.edu/index.shtml),
and both result in the following error message:

Traceback (most recent call last):
  File "/usr/lib/thuban/Thuban/UI/view.py", line 390, in OnPaint
  File "/usr/lib/thuban/Thuban/UI/view.py", line 436, in do_redraw
    selected_layer, selected_shapes)
  File "/usr/lib/thuban/Thuban/UI/renderer.py", line 340, in RenderMap
  File "/usr/lib/thuban/Thuban/UI/renderer.py", line 102, in render_map
  File "/usr/lib/thuban/Thuban/UI/renderer.py", line 214, in
    "", (width, height))
SystemError: error return without exception set

In the Iceland case, when I remove the raster layer, all the vector layers
appear on the screen.

If I try to load the Iceland raster on its own, Thuban seg faults (whereas
with the landsat image on its own it gives the above error message).


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