- group a3d_srf
Creates and accesses entities that represent geometric surfaces.
All surfaces are defined as follows:
Define the canonical form of the whole surface.
Define the actual parameterization and the portion of surface (trimming information) (A3DUVParameterizationData).
Define the orientation and scaling of the curve using a Cartesian transformation. The transformation cannot specify mirror or non-uniform scaling transformations (see A3DMiscCartesianTransformationData).
Depending on how surfaces were defined, please notice that some might have their parameterization implicitly reverted (and more especially for periodic ones).