Opened 7 years ago
Last modified 6 years ago
#3449 new defect
Diagonal cells not treated properly with r.reclass.area and minarea
Reported by: | mankoff | Owned by: | |
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Priority: | normal | Milestone: | 7.4.5 |
Component: | Parser | Version: | 7.2.2 |
Keywords: | Cc: | ||
CPU: | Unspecified | Platform: | All |
Description
Discussion: http://osgeo-org.1560.x6.nabble.com/making-sense-of-r-reclass-area-td5342391.html
Issue according to Markus Metz:
With method=rmarea, r.reclass converts the raster clumps to vector areas. That single cell in your example below, that either belongs to the larger clump 1 (with -d) or forms a separate clump 2 (without -d) will always be a separate small vector area (topology or not does not matter here) and thus will always be removed independent of the 2-cell clump. The vector approach is thus not working here as expected.
Suggested solution:
1) The "-d" flag should not be valid when "rmarea" option is set.
2) Documentation should be updated to reflect this
Change History (5)
comment:1 by , 7 years ago
Milestone: | 7.4.0 → 7.4.1 |
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comment:2 by , 6 years ago
Milestone: | 7.4.1 → 7.4.2 |
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Ticket retargeted after milestone closed