Symmetry parameter structure for training ShapeFinder2 models. More...
Symmetry parameter structure for training ShapeFinder2 models.
This structure is accepted by the functions CreateSF2, CreateSF2Ex and CreateSF2ExEx. It specified the symmetry coverage (acceptable rotation and scale range) for the model to be created.
For your convenience a few predefined parameter sets exist that correspond to typical use cases: SP_SimpleModel, SP_TolerantModel, SP_RotationInvariance, SP_ScaleInvariance, and SP_FullInvariance.
For a completely rotation invariant model set A0 = -180
and A1 = 180
. For a model with no scale invariance set R0 = 1.0
and R1 = 1.0
. For a the maximum range of scale-invariance set R0 = 0.66
and R1 = 1.50
.
The scale range will always be clamped to the range [0.66 ... 1.5] and the rotation range will always be clamped to the range [-180...180] by the training functions.