Synopsis

PDX_MSGT gdx_EvalExtSurfPnt(long option, T_GDX_EXT_SURF *gdx_ext_surf, double uval, double vval, MTH_3DPNT point)

Purpose

Evaluate a point on a GDX extruded surface

Description

At a given pair of parameters, evaluates a point on a GDX_EXT_SURF entity.

Input

option

(not used)

gdx_ext_surf

The GDX extruded surface structure pointer

uval

The surface U parameter value to evaluate

vval

The surface V parameter value to evaluate

Output

point

The XYZ 3D evaluated point location

Return

      Low level error return
      .fi