[mapguide][MG465][New] CCoordinateSystem::MeasureGreatCircleDistance returns incorr...

[Ben Trumbore]

You can view the artifact detail at the following URL:

    https://mapguide.osgeo.org/servlets/Scarab/id/MG465

Type
 Defect

Artifact ID
 MG465 (CCoordinateSystem::MeasureGreatCircleDistance returns incorrect results)

Reported by
 Ben Trumbore
 bentrumbore (ben.trumbore at autodesk.com)

New artifact details:
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- Artifact Status set to new value
  New
- Description set to new value
  CCoordinateSystem::MeasureGreatCircleDistance performs a great circle distance calculation for two points specified in the current coordinate system.  The current code miscalculates this distance for projected coordinate systems with units other than meters because it performs a distance conversion twice when only one conversion is needed.
- Steps to Reproduce set to new value
  This problem was seen in the Hammerhead version of Autodesk Map, when a buffering operation was performed on a layer using a coordinate system with foot units.  The same operation worked fine for coordinate systems with meter units or those that were arbitrary or unprojected.
- Defect Severity set to new value
  Medium
- Version set to new value
  1.0.2
- Summary set to new value
  CCoordinateSystem::MeasureGreatCircleDistance returns incorrect results
- Artifact created

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