test_self_intersection_xldtest_self_intersection_xldtest_self_intersection_xldTestSelfIntersectionXldTestSelfIntersectionXld (Operator)

Name

test_self_intersection_xldtest_self_intersection_xldtest_self_intersection_xldTestSelfIntersectionXldTestSelfIntersectionXld — Test XLD contours or polygons for self intersection.

Signature

Description

test_self_intersection_xldtest_self_intersection_xldtest_self_intersection_xldTestSelfIntersectionXldTestSelfIntersectionXld tests whether the input contours or polygons in XLDXLDXLDXLDXLD intersect themselves. The output array DoesIntersectDoesIntersectDoesIntersectDoesIntersectdoesIntersect contains a 1 if the corresponding input contour or polygon intersects itself and 0 otherwise.

If the input parameter CloseXLDCloseXLDCloseXLDCloseXLDcloseXLD is set to 'true'"true""true""true""true", open contours or polygons are closed before the check is performed by simply connecting the first and the last contour or polygon point with a line segment.

If a contour or polygon only touches itself, it is not considered as self intersecting.

Attention

A contour or polygon touches itself if a contour or polygon point lies exactly on a contour or polygon segment. However, whether a point lies exactly on a contour or polygon segment or not can practically not be decided because of numerical reasons.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Automatically parallelized on tuple level.

Parameters

Module

Foundation