# Synopsis

(macro) void gdx_SetApprox3DPnt(long option, long point_ndx, int coord, double coord_value)

# Purpose

Sets the coordinate of the indicated 3D point in the current GDX linear approximation 3D points list.

# Description

Sets the coordinate value of the indicated 3D point in the linear approximation 3D points list for the current GDX linear approximation workspace. No error checking is performed and it is assumed that a workspace is currently allocated and enough space exists in the linear approximation workspace to set the current point.

# Input

## option

Not used

## point_ndx

The index for the 3D linear approximation point

## coord

The coordinate index to set (0-2)

## coord_value

The coordinate value to set