[Qgis-developer] Query building for rasters, too
cavallini at faunalia.it
Mon May 21 07:10:11 EDT 2007
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Tried, but I get:
Couldn't load plugin "rasteralgebra"
Traceback (most recent call last):
File "", line 2, in ?
line 2, in ?
from rasteralgebra import RasterAlgebra
line 9, in ?
line 2, in ?
from rasterutils import checkRasterSupport, layerAsArray, writeGeoTiff
line 3, in ?
ImportError: No module named gdal
Debian testing, qgis compiled by hand, gdal 1.3.2
All the best.
Barry Rowlingson ha scritto:
> Mark Coletti wrote:
>> One of the great new features is the ability to create entirely new
>> vector layers from existing ones based on certain criteria. I was
>> surprised that there didn't exist similar functionality for rasters.
>> E. g., it should be possible to create a new raster layer containing
>> specific themal values from an existing one that had categorized pixel
>> values, perhaps using the result of a call to
>> GDALRasterBand::GetCategoryNames() or GDALRasterAttributeTable
>> contents. I did not see any plan for implementing such after
>> stumbling through the various qgis related web sites, including the
>> wiki and the trac site. Is there a plan to implement such a feature?
> Have you seen my RasterAlgebra plugin?
> I knocked it up pretty quickly in order to play with QtDesigner and
> python plugins. It only does simple algebra, but the code might serve as
> a useful starting point for any other raster processing.
> Qgis-developer mailing list
> Qgis-developer at lists.qgis.org
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