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POGeoDjango: Exceptions for basic geographic queries
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2012-10-27T16:37:38.203
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I am having problems with geographic queries with GeoDjango running on SpatiaLite on my development environment. <pre><code>from django.contrib.gis.db import models class Test(models.Model): poly = models.PolygonField() point = models.PointField() geom = models.GeometryField() objects = models.GeoManager() </code></pre> Testing via shell: <pre><code>>>> from geotest.models import Test >>> from django.contrib.gis.geos import GEOSGeometry >>> >>> point = GEOSGeometry("POINT(0 0)") >>> point <Point object at 0x105743490> >>> poly = GEOSGeometry("POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))") >>> poly <Polygon object at 0x105743370> >>> </code></pre> With these definitions, lets try some basic geographic queries. First <code>contains</code>: <pre><code>>>> Test.objects.filter(point__within=poly) Assertion failed: (0), function appendGeometryTaggedText, file WKTWriter.cpp, line 228. Abort trap </code></pre> And the django shell dies. And with <code>within</code>: <pre><code>>>> Test.objects.filter(poly__contains=point) GEOS_ERROR: Geometry must be a Point or LineString Traceback (most recent call last): ... GEOSException: Error encountered checking Coordinate Sequence returned from GEOS C function "GEOSGeom_getCoordSeq_r". >>> </code></pre> Other combinations also cause a variety of exceptions. I must be missing something obvious as these are very basic. Any ideas?
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<django><geodjango><geos>
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GeoDjango: Exceptions for basic geographic queries
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