POLY_SURF Procedure

Generates a 3D vertex list and a polygon list, given a 2D array containing z values.

POLY_SURF, surf_dat, vertex_list, polygon_list, pg_num

surf_dat A 2D array containing z values. The 3D polygon vertices are generated from this data.

vertex_list A (3, n) array containing the 3D coordinates of the polygon vertices.

polygon_list A 1D array containing the number of sides for each polygon, as well as the subscripts into the vertex_list array for the vertices of each polygon.

pg_num The total number of polygons defined by vertex_list and polygon_list. This parameter can be used as input into POLY_PLOT.

None.

POLY_SURF generates a list of polygons from a 2D array that contains Z values. All the polygons generated have four sides (and four vertices).

• The vertex_list array returned is suitable for input into the POLY_TRANS, POLY_NORM, POLY_DEV, POLY_PLOT and POLYSHADE procedures.

• The polygon_list array returned is suitable for input into the POLY_PLOT and POLYSHADE procedure. For more information, see Vertex Lists and Polygon Lists in Chapter 7 of the PV-WAVE User's Guide.

See the Example section in the description of the POLY_DEV routine.

POLY_SPHERE