[mapguide][MG129][Modified] Great Circle azimuth computation is numerically unstable

[Traian Stanev]

You can view the artifact detail at the following URL:

    https://mapguide.osgeo.org/servlets/Scarab/id/MG129

Type:
Defect

Artifact ID:
MG129 (Great Circle azimuth computation is numerically unstable)

Modified by:
Traian Stanev
traianstanev (traian.stanev at autodesk.com)

The following modifications were made to this artifact:
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-- Description set to new value:
Old value:
The great circle azimouth computation code in CoordSys.cpp is not numerically stable -- for points very close to each other, like 1 foot distance for example, the math would break down and return NaN.
New value:
The great circle azimuth computation code in CoordSys.cpp is not numerically stable -- for points very close to each other, like 1 foot distance for example, the math would break down and return NaN.
-- Summary changed:
Old value:
Great Circle azimouth computation is numerically unstable
New value:
Great Circle azimuth computation is numerically unstable



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