typedef void (*PK_FGEVCU_f_t)(int ki_ints[], double ki_reals[], double fg_data[], double *t, int *nderivs, double results[], int *ifail); Evaluate a foreign curve. This function is called when an evaluation of a foreign curve is required by Parasolid. The function should be capable of supplying position and up to second derivatives for a foreign curve which has previously been initialised by a call to FGCRCU. The argument fg_data identifies the curve evaluator. The arguments ki_ints and ki_reals give the numerical data passed in through Parasolid when the curve was initialised. For more details of this function please refer to the Foreign Geometry documentation. Specific errors: FGEVIN Evaluation incomplete (not all derivatives requested have been evaluated) FGOPFA Evaluation failed ( FGOPOK Operation successful )