Bug report #12695: GDAL Rasterize does not rasterize vectors with field 0 - QGIS Application - QGIS Issue Tracking

Bug report #12695

GDAL Rasterize does not rasterize vectors with field 0

Added by Paolo Cavallini about 9 years ago. Updated about 9 years ago.

Status:	Closed
Priority:	Normal
Assignee:	Giovanni Manghi
Category:	Processing/GDAL
Affected QGIS version:	2.8.1	Regression?:	No
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:	fixed/implemented
Crashes QGIS or corrupts data:	No	Copied to github as #:	20801

Description

All records are rasterized, except those with value of the selected field = 0. This seems inappropriate

History

#1 Updated by Giovanni Manghi about 9 years ago

Status changed from Open to Feedback
Assignee changed from Victor Olaya to Giovanni Manghi

Cannot confirm on qgis master. Please attach sample data.

#2 Updated by Paolo Cavallini about 9 years ago

Done with the basins from exercise data.
Thanks.

#3 Updated by Giovanni Manghi about 9 years ago

Paolo Cavallini wrote:

Done with the basins from exercise data.
Thanks.

if you mean the training manual exercise data then I cannot see any "basins" layer. Better attach the data is giving you problems.

#4 Updated by Paolo Cavallini about 9 years ago

See: https://github.com/qgis/QGIS-Documentation/tree/master/source/docs/training_manual/exercise_data/processing/extents

#5 Updated by Giovanni Manghi about 9 years ago

I tested on both QGIS master and 2.8.1 on both Linux and Windows and in all cases, with the provided vector, there are no issues and the polygon with attribute = 0 are correctly rasterized to pixels with value = 0.

If you use the tool and choose "byte" as type for output you must pay attention to the value used for nodata, as -9999 cannot fit in such type and so it is automatically changed to 0.