CROSSING

Where two elements cross.

Syntax

CROSSING(@a,@b,k)
CROSSING(@a,@b,k,TRUE)

Argument	Meaning
@a, @b	The two elements.
k	Which crossing, counting from 0 in order along @a.
TRUE	Where they would cross extended: line segments as their whole line, arcs as their whole circle (optional).

Result

A position.

Examples

In the example drawing:

Expression	Gives
`CROSSING(@5,@6,0)`	`[32.6795,0]`
`CROSSING(@5,@6,1)`	`[67.3205,0]`

Notes

It follows the element: a point defined this way moves when the element does, and is never fixed in space. The Intersect tool and the Intersection snap write it. If the elements stop crossing, the point can't be worked out.