document issue #2089 (scale factors assumed positive) #2156
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stephengold
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This PR improves the javadoc in the com.jme3.math package to document certain assumptions and limitations related to 3-D coordinate transforms.
In particular,
Matrix4f.toScaleVector()does not capture reflection andQuaternion.fromRotationMatrix()fails to compensate for it. These limitations ripple outwards, affecting otherMatrix4f,Quaternion, andTransformmethods.