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Fixed #18919 -- Stopped dropping Z attribute when transforming geometries

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Previously, the wkb of geometries was dropping the Z attribute.
Thanks luizvital for the report and tests and georger.silva@gmail.com
for the tests.
This commit is contained in:
Claude Paroz 2012-09-22 11:55:37 +02:00
parent 82a74dce24
commit ffdd6595ea
6 changed files with 61 additions and 50 deletions
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20
docs/ref/contrib/gis/geos.txt
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@ -273,14 +273,18 @@ Essentially the SRID is prepended to the WKT representation, for example
.. attribute:: GEOSGeometry.hex
Returns the WKB of this Geometry in hexadecimal form. Please note
that the SRID and Z values are not included in this representation
that the SRID value is not included in this representation
because it is not a part of the OGC specification (use the
:attr:`GEOSGeometry.hexewkb` property instead).
.. versionchanged:: 1.5
Prior to Django 1.5, the Z value of the geometry was dropped.
.. attribute:: GEOSGeometry.hexewkb
Returns the EWKB of this Geometry in hexadecimal form. This is an
extension of the WKB specification that includes SRID and Z values
extension of the WKB specification that includes the SRID value
that are a part of this geometry.
.. note::
@ -319,16 +323,20 @@ correspondg to the GEOS geometry.
.. attribute:: GEOSGeometry.wkb
Returns the WKB (Well-Known Binary) representation of this Geometry
as a Python buffer. SRID and Z values are not included, use the
as a Python buffer. SRID value is not included, use the
:attr:`GEOSGeometry.ewkb` property instead.
.. versionchanged:: 1.5
Prior to Django 1.5, the Z value of the geometry was dropped.
.. _ewkb:
.. attribute:: GEOSGeometry.ewkb
Return the EWKB representation of this Geometry as a Python buffer.
This is an extension of the WKB specification that includes any SRID
and Z values that are a part of this geometry.
value that are a part of this geometry.
.. note::
@ -822,7 +830,7 @@ Writer Objects
All writer objects have a ``write(geom)`` method that returns either the
WKB or WKT of the given geometry. In addition, :class:`WKBWriter` objects
also have properties that may be used to change the byte order, and or
include the SRID and 3D values (in other words, EWKB).
include the SRID value (in other words, EWKB).
.. class:: WKBWriter
@ -884,7 +892,7 @@ so that the Z value is included in the WKB.
Outdim Value Description
============ ===========================
2 The default, output 2D WKB.
3 Output 3D EWKB.
3 Output 3D WKB.
============ ===========================
Example::