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Rethink dealing with geometry orientation in the renderder #645

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copierrj opened this issue Dec 10, 2015 · 1 comment
Open

Rethink dealing with geometry orientation in the renderder #645

copierrj opened this issue Dec 10, 2015 · 1 comment
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enhancement enhancement or improvement hard needs discussion requires discussion with contributor

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@copierrj
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Currently we don't have a specific policy regarding geometry orientation in Java2DRenderer. Users observed that moving from a shape datastore to a database backed datastore can results in a different rendering. Another issue is that clipping might cause unexpected results.
@copierrj copierrj added the needs discussion requires discussion with contributor label Dec 10, 2015
@stephanr stephanr mentioned this issue Dec 10, 2015
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@tfr42 tfr42 added enhancement enhancement or improvement hard labels Dec 10, 2015
@stephanr
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As addition for future discoussions,
previously I looked up some datasources/specifications if they specify a point order for Polygon:

Specification Result Document
Oracle Spatial Exterior = CCW, Interior = CW Oracle Spatial User’s Guide and Reference 10g Release 2 B14255-03
ESRI Shape Exterior = CW, Interior = CCW ESRI Shapefile Technical Description July 1998) [2]
GML2.1.2 No Point Order required for Polygons OGC Document 02-069
GML3.1.1 I have not found any preferences, it was only remarked that it is GML2 compatible OGC Document 03-105r1
OGC SF Access for SQL No Point Order required for Polygons OGC Document 06-104r4

@tfr42 tfr42 mentioned this issue Feb 25, 2020
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@tfr42 tfr42 mentioned this issue Mar 6, 2020
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@tfr42 @copierrj @stephanr