The
COMPUTE_MESH_NORMALS function computes normal vectors for a set of polygons described by the input array. The return value is a 3 x
M
array containing a unit normal for each vertex in the input array.

Calling Sequence

Result = COMPUTE_MESH_NORMALS(
fVerts [, iConn]
)

Arguments

fVerts

A 3 x
M
array of vertices.

iConn

A connectivity array (see the POLYGONS keyword to IDLgrPolygon::Init). If no
iConn
array is provided, it is assumed that the verticies in
fVerts
constitute a single polygon.