17 April 2020 06:46:38 PM

SPHERE_STEREOGRAPH_TEST
  C++ version
  Test the SPHERE_STEREOGRAPH library.

TEST01
  SPHERE_STEREOGRAPH maps from sphere to plane.
  SPHERE_STEREOGRAPH_INVERSE is the inverse map.
  Check that these two functions are inverses.

  Map points from sphere to plane to sphere.
  RMS difference for 100 points was 4.54989e-17

  Map points from plane to sphere to plane.
  RMS difference for 100 points was 6.36729e-18

TEST02
  SPHERE_STEREOGRAPH standard mapping from sphere to plane.
  SPHERE_STEREOGRAPH2 generalized mapping:
  (focus and center are arbitrary)
  Check that these two functions can agree.

  Map points from sphere to plane.
  RMS difference for 100 points was 7.56915e-17

  Map points from plane to sphere.
  RMS difference for 100 points was 1.10505e-17

TEST03
  SPHERE_STEREOGRAPH2 maps from sphere to plane.
  SPHERE_STEREOGRAPH2_INVERSE is the inverse map.
  Check that these two functions are inverses.

  Using radius = 0.996643
  Center:  0.561695  0.415307  0.0661187
  Focus:  0.218418  0.956318  0.829509

  Map points from sphere to plane to sphere.
  RMS difference for 100 points was 3.31347e-17

  Map points from plane to sphere to plane.
  RMS difference for 100 points was 3.58282e-17

SPHERE_STEREOGRAPH_TEST
  Normal end of execution.

17 April 2020 06:46:38 PM