Opened 13 years ago
Closed 13 years ago
#1577 closed defect (fixed)
CCoordinateSystemMathComparator::SameCoordinateSystem() incorrectly returns [false] for equal "arbitrary coordinate systems"
| Reported by: | baertelchen | Owned by: | baertelchen |
|---|---|---|---|
| Priority: | low | Milestone: | 2.3 |
| Component: | General | Version: | 2.1.0 |
| Severity: | minor | Keywords: | Coordinate System API comparing coordinate systems CCoordinateSystemMathComparator SameCoordinateSystem |
| Cc: | External ID: |
Description
The CCoordinateSystemMathComparator::SameCoordinateSystem() API allows to compare 2 coordinate systems on (mathematical) equality.
It incorrectly returns [false], however, if the 2 systems to be compared are so called "arbitrary system" which do neither reference a datum nor an ellipsoid.
Currently, if none of the 2 is found, the method mentioned above simply returns [false], what is not correct for systems like XY-M (Cartesian XY meter).
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Has been fixed in revision 5477 on December, 17th 2010. See log for http://svn.osgeo.org/mapguide/trunk/MgDev/Common/CoordinateSystem
Modified the [SameCoordinateSystem] method so it does also check the case where both systems neither reference a datum nor an ellipsoid. If the projection type is then NERTH, the method will do the remaining checks, e.g. check the x/y offsets on equality + the unit