#11827: GeoQuerySet extent() method fails if contains only one object with point
geometry
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Reporter: mal | Owner: nobody
Status: new | Milestone:
Component: GIS | Version: 1.1
Resolution: | Keywords: oracle
Stage: Unreviewed | Has_patch: 0
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Changes (by jtiai):
* keywords: => oracle
Comment:
Well this is "feature" of Oracle Spatial SDO_AGGR_MBR function. It's
describes few "exceptions" as follows (excerpt from Oracle Spatial
documentation):
* This function does not return an MBR geometry if a proper MBR cannot be
constructed. Specifically:
* If the input geometries are all null, the function returns a null
geometry.
* If all data in the input geometries is on a single point, the function
returns the point.
* If all data in the input geometries consists of points on a straight
line, the function returns a two-point line.
AFAIK at least PostGIS uses st_extent for extent() method which always
returns real bounding box.
--
Ticket URL: <http://code.djangoproject.com/ticket/11827#comment:3>
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