Opened 10 years ago

Last modified 10 years ago

#2613 closed defect

Polygons disappear after v.overlay AND operation — at Initial Version

Reported by: dido Owned by: grass-dev@…
Priority: major Milestone:
Component: Vector Version: 7.0.0
Keywords: v.overlay and polygons damaged Cc:
CPU: x86-64 Platform: MSWindows 7

Description

A shapefile polygon set A has been cut using a grid polygon B using a v.overlay AND operation. The result is expected to contain all the A polygons that are enclosed within the grid polygon B.

The output is almost as expected but several A polygons within the B rectangle are missing. GRASS version is 7.0.0.RC1. Here is the io console log:

(Fri Mar 06 11:07:12 2015) v.overlay ainput=K3445_NEW_FISH@BGM_POLY_UTM binput=GRID_K34058@BGM_POLY_UTM operator=and output=K34058_NEW Copying vector features from <K3445_NEW_FISH@BGM_POLY_UTM>... Copying vector features from <GRID_K34058@BGM_POLY_UTM>... Snapping boundaries with 1e-008 ... Breaking lines... Removing duplicates... Cleaning boundaries at nodes... Breaking lines... Removing duplicates... Cleaning boundaries at nodes... Breaking lines... Removing duplicates... Cleaning boundaries at nodes... WARNING: Number of incorrect boundaries: 949 Merging lines... Attaching islands... Building areas... 25262 areas built 7375 isles built Attaching islands... Number of nodes: 41280 Number of primitives: 60697 Number of points: 0 Number of lines: 0 Number of boundaries: 60697 Number of centroids: 0 Number of areas: 25262 Number of isles: 7375 Querying vector map <K3445_NEW_FISH@BGM_POLY_UTM>... Querying vector map <GRID_K34058@BGM_POLY_UTM>... Writing centroids... WARNING: Unable to delete file 'E:\mapping\GRASS7DB/BGM_POLY_UTM/BGM_POLY_UTM/.tmp/unknown/vector/tmp_7316/coor' Building topology for vector map <K34058_NEW@BGM_POLY_UTM>... Registering primitives... 42630 primitives registered 642388 vertices registered Building areas... 12823 areas built 2888 isles built Attaching islands... Attaching centroids... Number of nodes: 19873 Number of primitives: 42630 Number of points: 0 Number of lines: 0 Number of boundaries: 29808 Number of centroids: 12822 Number of areas: 12823 Number of isles: 2888 v.overlay complete. (Fri Mar 06 11:07:46 2015) Command finished (34 sec)

Files can be provided upon request (~50 Mb).

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