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Fixed #12312 -- Set the coordinate dimension on each component of geometry collections after transform (refines GDAL bug workaround introduced in r11628). Thanks, yourcelf for bug report.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@12878 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Justin Bronn 2010-03-29 17:33:59 +00:00
parent 7d25682108
commit 87302ac009
2 changed files with 52 additions and 16 deletions
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22
django/contrib/gis/gdal/geometries.py
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@ -48,11 +48,11 @@ from django.contrib.gis.gdal.base import GDALBase
from django.contrib.gis.gdal.envelope import Envelope, OGREnvelope
from django.contrib.gis.gdal.error import OGRException, OGRIndexError, SRSException
from django.contrib.gis.gdal.geomtype import OGRGeomType
from django.contrib.gis.gdal.libgdal import GEOJSON, GDAL_VERSION
from django.contrib.gis.gdal.srs import SpatialReference, CoordTransform
# Getting the ctypes prototype functions that interface w/the GDAL C library.
from django.contrib.gis.gdal.prototypes import geom as capi, srs as srs_api
GEOJSON = capi.GEOJSON
# For recognizing geometry input.
from django.contrib.gis.geometry.regex import hex_regex, wkt_regex, json_regex
@ -400,7 +400,8 @@ class OGRGeometry(GDALBase):
# afterwards. This is done because of GDAL bug (in versions prior
# to 1.7) that turns geometries 3D after transformation, see:
# http://trac.osgeo.org/gdal/changeset/17792
orig_dim = self.coord_dim
if GDAL_VERSION < (1, 7):
orig_dim = self.coord_dim
# Depending on the input type, use the appropriate OGR routine
# to perform the transformation.
@ -412,11 +413,22 @@ class OGRGeometry(GDALBase):
sr = SpatialReference(coord_trans)
capi.geom_transform_to(self.ptr, sr.ptr)
else:
raise TypeError('Transform only accepts CoordTransform, SpatialReference, string, and integer objects.')
raise TypeError('Transform only accepts CoordTransform, '
'SpatialReference, string, and integer objects.')
# Setting with original dimension, see comment above.
if self.coord_dim != orig_dim:
self.coord_dim = orig_dim
if GDAL_VERSION < (1, 7):
if isinstance(self, GeometryCollection):
# With geometry collections have to set dimension on
# each internal geometry reference, as the collection
# dimension isn't affected.
for i in xrange(len(self)):
internal_ptr = capi.get_geom_ref(self.ptr, i)
if orig_dim != capi.get_coord_dim(internal_ptr):
capi.set_coord_dim(internal_ptr, orig_dim)
else:
if self.coord_dim != orig_dim:
self.coord_dim = orig_dim
def transform_to(self, srs):
"For backwards-compatibility."