# Synopsis

(macro) void gdx_AddApproxFacetEdge(long option, long edge_start_ndx, long edge_end_ndx)

# Purpose

Adds a facet edge to the current GDX linear approximation workspace

# Description

Adds a facet edge to the linear approximation workspace. The facet edge is an edge in a list that when connect to the previous or next edge in the list forms a facet. No error checking is performed and it is assumed that a workspace is currently allocated.

# Input

## option

Not used

## edge_start_ndx

The index of the GDX 3D point that forms the start of the facet edge

## edge_end_ndx

The index of the GDX 3D point that forms the end of the facet edge