Function: clash_e

Syntax

clash_e (<group> {,<group> ...} {,<tol>} )

Type

filter

Returns

The filter of all entities which clash with one or more 3-D polygons derived from polygon primitive(s). The combination of polygons is often referred to as a fence. Entities are tested for coincidence with the polygon(s) after being projected onto the polygon surface. All polygons in the fence should be coplanar.

Parameters

<group>
A group expression yielding one or more graphic entities/primitives making up the fence. Only polygon primitives are considered.
<tol>
A numeric value indicating a closeness tolerance for vertex and edge matching. If a vertex is within this tolerance of a fence edge it is considered to be on the fence edge. If this switch is omitted, a very small tolerance is computed based on the extents of the entities.

Examples

Modify the fill color of all entities which clash with the polygons in the group my_group.

modify clash_e(my_group) { fill = red }

Rotate all entities which clash with two polygon entities: poly1 and poly2.

rotate -z=90,clash_e(poly1,poly2)