CPLregionsholes

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - CPL/Closed Polygon Lists
Introduced first in SolidGeometry 4.7, Creation date: 2019-06-22, Last change: 2025-09-14

separates CPLs into Surfaces and Holes

Description

This functions works different than the hole method of polyshape. It is not sorting the contours but really create full shape outside contours (to be added) and inside hole contours to be substracted.
This is the correct version for the function simplify = true;
This function is required for overlapping contours with holes before Boolean operations

See Also: CPLadd , CPLremoveregionsholes

Example Illustration

 missing image of CPLregionsholes(CPL)

Syntax

[CPLo,CPLi]=CPLregionsholes(CPL)

Input Parameter

CPL: Original CPL

Output Parameter

CPLo: Outside Conturs to add (RED)
CPLi: Hole Contours to substact (GREEN)

Examples


CPLregionsholes(CPLsample(15));
CPLregionsholes(CPLsample(26));




Copyright 2019-2025 Tim C. Lueth. All rights reserved. The code is the property of Tim C. Lueth and may not be redistributed or modified without explicit written permission. This software may be used free of charge for academic research and teaching purposes only. Commercial use, redistribution, modification, or reverse engineering is strictly prohibited. Access to source code is restricted and granted only under specific agreements. For licensing inquiries or commercial use, please contact: Tim C. Lueth

Last html export of this page out of FM database by TL: 2025-09-21