Opened 7 years ago

Closed 7 years ago

#749 closed defect (fixed)

GeometryPrecisionReducer not honouring target PM for empty geometry inputs

Reported by: strk Owned by: geos-devel@…
Priority: blocker Milestone: 3.5.1
Component: Default Version: 3.5.0
Severity: Unassigned Keywords:
Cc: mbdavis


This needs more testing but I've added a GEOSGeom_getPrecision function to the C-API and in some cases it's not confirming that the corresponding GEOSGeom_setPrecision did what it advertise to do.

Adding debugging lines shows a possible bug in GeometryPrecisionReducer not properly setting the output model.

Change History (5)

comment:1 by strk, 7 years ago

I think I've spotted the bug being in CoordinateOperation::edit ending with a geometr->clone() rather than using the new factory.

comment:2 by strk, 7 years ago

Cc: mbdavis added

I'd note that the same issue exists in JTS, whereas the class is called CoordinateSequenceOperation there.

comment:3 by strk, 7 years ago

Alright I restricted the problem to EMPTY input. Generally speaking, if the input has no Coordinates, the GeometryEditor with CoordinateOperation visitor does _not_ change the GeometryFactory.

I'm tempted to call this a bug, for GeometryPrecisionReducer to not change the factory of an empty.

comment:4 by strk, 7 years ago

Note that the bug of GeometryEditor also affects GeometryFactory->createGeometry() in that it uses GeometryEditor to change factory of geometries.

comment:5 by strk, 7 years ago

Resolution: fixed
Status: newclosed
Summary: GeometryPrecisionReducer not honouring target PMGeometryPrecisionReducer not honouring target PM for empty geometry inputs
Version: svn-trunk3.5.0

GeometryEditor fixed in 3.5 branch with r4110 (for 3.5.1) and in trunk with r4109 (for 3.6.0)

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