Function: dir3d

Syntax

dir3d (<point1> ,<point2>)

Type

point

Returns

The 3-D direction between two 3-D points.

Parameters

•  <point1>
  The start point.

• <point2>
  The finish point.

If an answer cannot be computed, then the value (1,0,0) is returned and funcerr is set to -1.

Examples

Compute the direction between 2 points:

point p1=(100,0,0), p2=(100,200,0)
point v=dir3d(p1,p2)

v will now have the value (0,1,0).

See Also