Re: [gdal-dev] core dumping on PNG RGB creation

[Lucena, Ivan]

That is because the PNG driver does not support Create() Method. 

Compare the two outputs:

% gdalinfo --format png
% gdalinfo --format gtiff


>  -------Original Message-------
>  From: Jared Rubin <JARED.RUBIN at saic.com>
>  Subject: [gdal-dev] core dumping on PNG RGB creation
>  Sent: Feb 02 '09 19:35
>  
>  I am unable to generate a RGB png image from the python swig interface.
>  The following code does work if I change the driver to BMP. Is there
>  something odd about the PNG driver?
>  Thanks
>  
>  
>  import osgeo.gdal as gdal
>  import numpy
>  buf = (numpy.random.rand(100*100*3)*255).round() % 255
>  buf = buf.reshape(100,100,3)
>  driver = gdal.GetDriverByName('PNG')
>  ds = driver.Create('tmp.png',100,100,3)
>  ds.GetRasterBand(1).WriteArray(buf[:,:,0])
>  ds.GetRasterBand(2).WriteArray(buf[:,:,1])
>  ds.GetRasterBand(3).WriteArray(buf[:,:,2])
>  
>  
>  
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