Ticket #92 (defect)
Opened 2 years ago
Last modified 2 years ago
Inconsistency in BoundingBox internal state
Status: closed (fixed)
| Reported by: | dokai | Assigned to: | seang |
|---|---|---|---|
| Priority: | major | Milestone: | 0.11 |
| Component: | Spatial and Geometry | Version: | |
| Keywords: | Cc: | ||
The state of a BoundingBox? object becomes inconsistent if the object geometry is modified. The reason for this is that BoundingBoxes? maintain the geometry information at two different levels: the underlying Polygon base class's geometry and the instance variables for minx, miny, maxx and maxy.
When the base class's geometry is modified the instance variables still maintain their old values.
Steps to reproduce:
from cartography.referencing.transform.proj4 import ProjTransform from cartography.spatial.geometry import BoundingBox from cartography.referencing.srs import SpatialReference source = SpatialReference(epsg=2393) target = SpatialReference(epsg=4326) bbox = BoundingBox(3083821.75, 6639903.0, 3733174.25, 7779714.0) transformation = ProjTransform(target, source) print "Geometry:", bbox print "Instance variables:", bbox.totuple() # This operation modifies the base class's geometry, but not the instance variables bbox.transform(transformation) # The values printed here will demonstrate the inconsistency. print print "Geometry:", bbox print "Instance variables:", bbox.totuple()
Change History
10/15/06 13:50:32: Modified by seang
- status changed from new to assigned.
10/16/06 12:35:56: Modified by seang
- status changed from assigned to closed.
- resolution set to fixed.
Fixed in r505. See the new BoundingBox? test in testpygeom.py.