[geos-devel] [GEOS] #1079: Inconsistent dimensionality change

GEOS geos-trac at osgeo.org
Mon Nov 30 15:18:54 PST 2020

#1079: Inconsistent dimensionality change
 Reporter:  Mike Taves  |       Owner:  geos-devel@…
     Type:  defect      |      Status:  new
 Priority:  minor       |   Milestone:  3.9.0
Component:  Default     |     Version:  master
 Severity:  Annoyance   |  Resolution:
 Keywords:              |

Comment (by pramsey):

 Reading through WKTReader, it seems like the general goal is to promote
 the dimensionality of a given CoordinateSequence to the highest
 dimensionality encountered in the sequence. That doesn't seem to match the
 behaviour of the polygon case though, nor the new behaviour of the
 linestring case. In any event, the current model sort of sucks since it's
 possible to make a POLYGON with mixed dimension rings, or a
 multilinestring with mixed dimension members. Also you can make a
 linestringz with 2d coordinates, because the dimensionality tag is mostly
 ignored. (Not always).

Ticket URL: <https://trac.osgeo.org/geos/ticket/1079#comment:2>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).

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