lin_free - Geometric procedure

Creates a line


Description

Creates a 2D or 3D line by connecting two freely chosen positions.

Syntax

lin_free(id, p1, p2:attributes);

REF	id;
VECTOR	p1;
VECTOR	p2;

Principal parameters

id	- Local identity
p1	- Start position
p2	- End position

Optional parameters

None.

Attributes

PEN	- Pen or colour number
LEVEL	- Level number
BLANK	- Visible(0) or invisible(1)
LFONT	- Solid(0), dashed(1) or centerline(2)
LDASHL	- Dashlength
WIDTH	- Linewidth

Example

lin_free(#1,vec(0,0),centre(#2));

A straight line between X=Y=0 and the centre of #2.

Comments

The sense of direction for a line is from its start to its end. Distance between p1 and p2 must be at least 0.001 (TOL2).