VARKON Version 1.15 1997-12-29

arc_fil - Geometric procedure

Creates an arc


Description

Creates a circular fillet between two lines, arcs or curves. A fillet between two entites can be constructed in any of the four corners of their intersection. An alt parameter is used to select the right corner using the following rule:

The corner on the right side of both entities = 1.
The corner on the left side of the first but right side of the second = 2.
The corner on the right side of the first but left side of the second = 3.
The corner on the left side of both entities = 4.

Syntax

arc_fil(id, ref1, ref2, r, alt:attributes);

REF	id;
REF	ref1;
REF	ref2;
FLOAT	r;
INT	alt;

Principal parameters

id	- Local identity
ref1	- First line, arc or curve
ref2	- Second line, arc or curve
r	- Radius
alt	- Alternative, see above

Optional parameters

None.

Attributes

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

Examples

arc_fil(#10,#5,#6,5,2);

Creates an arc tangent to #5 and #6 with radius = 5. The corner defined by the left side of #5 and right side of #6 is selected (alt=2).
Comments

In a 3D module the resulting arc is restricted to the XY-plane of the active coordinate system. If any of the referenced entities are not in this plane they will be projected along the Z-axis onto the XY-plane before being used to create the new arc.