typedef struct {
unsigned short order;
unsigned short rationality; /* PEXRational or PEXNonRational */
float tmin;
float tmax;
unsigned int num_knots;
unsigned int num_points;
float *knots;
PEXPointer points; /* 3D or 4D PEXCoord */
} PEXCurveGeometrySpline;
PEXCurveGeometrySpline is a data structure that is common to the following functions:
For a list of data structures for non-uniform rational B-splines, see Data Structures for NURBS.