[Marble-devel] Review Request 119354: In ShpRunner, for shapeType = SHPT_POLYGON, set Geometry of placemark to multi geometry only when there are more than one polygons.

Abhinav Gangwar abhgang at gmail.com
Sat Aug 9 19:15:02 UTC 2014


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https://git.reviewboard.kde.org/r/119354/
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(Updated Aug. 10, 2014, 1:45 a.m.)


Status
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This change has been marked as submitted.


Review request for Marble, Dennis Nienhüser, Torsten Rahn, and Thibaut Gridel.


Repository: marble


Description
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I noticed some problem in rendering of colorize property in Atlas map . The Atlas map from updated master shows all Asia and Europe colored with ice colors.

I figured out the problem why it's happening by comparing kml files ( converted from ne_50m_land.shp ) converted using Marble's kml2kml tool and Qgis.

The problem was that the file I created using kml2kml was specifying the geometry of a plcemark as MulltiGeometry ( containing only one polygon ) while for exctly same placemark, in the kml file I converted using QGis, the geometry was Polygon.

This was due to the problem :
In ShpRunner, the case when shapeType is SHPT_POLYGON ,If there are more than one linear rings, the placemark's geometry is set to Multigeometry ( even if more than one linear rings represent a single polygon - one outer ring and rest are inner rings ).

Fix :
I fixed it by setting placemark's geometry to Multigeometry only when there are more than one polygons ( more than one outer rings ).
i.e ( more than one linearring ) && ( more than one linearrings are outerrings ).


Diffs
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  src/plugins/runner/shp/ShpRunner.cpp 2e15688 

Diff: https://git.reviewboard.kde.org/r/119354/diff/


Testing
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Yes, patch works fine and fixes the problem.


Thanks,

Abhinav Gangwar

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