PLgrow

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - PL/Point Lists
Introduced first in SolidGeometry 3.0, Creation date: 2016-06-21, Last change: 2025-09-14

grows a contour line in a distance to an open or closed PL

Description

This function handles point lists which is more complex than the handling of CPL since the starting point and end point have to be considered in 4 different cases.

See Also: PLoutercontour , CPLoutercontour , CPLgrow , PLgrowline

Example Illustration

missing image of PLgrow(PL,w,edge)

Syntax

[RPL,ENL,PNL,PDL]=PLgrow(PL,w,[edge])

Input Parameter

PL: Polygon line
w: distance for growing
edge: true call CPLgrowEdge; default is false;

Output Parameter

RPL: Recalculated CPL
ENL: Edge normal vector list
PNL: Point normal vector lit
PDL: Point direction vector list

Examples


PLgrow(PLcircle(4),-1);
PLgrow(PLstar(4,20),-1);
PLgrow(PLstar(10,12),-3,true);



Copyright 2016-2025 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