mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-07 00:02:15 -05:00
19 lines
1.2 KiB
HTML
19 lines
1.2 KiB
HTML
<html>
|
|
<head><link rel="stylesheet" type="text/css" href="help.css" /></head>
|
|
<body>
|
|
<h1 class='module'>Convex Hull</h1>
|
|
<div class='author'>O.Conrad (c) 2011</div>
|
|
<div class='description'>Implementation of 'Andrew's Monotone Chain Algorithm' for convex hull construction. <br/>
|
|
References:<br/>
|
|
Algorithmist (2011): <a target="_blank" href="http://www.algorithmist.com/index.php/Monotone_Chain_Convex_Hull.cpp">Monotone Chain Convex Hull</a>. algorithmist.com.<br/>
|
|
Andrew, A.M. (1979): Another Efficient Algorithm for Convex Hulls in Two Dimensions. Info. Proc. Letters 9, pp.216-219.<br/>
|
|
Sunday, D. (2001-2006): <a target="_blank" href="http://www.softsurfer.com/Archive/algorithm_0109">The Convex Hull of a 2D Point Set or Polygon</a>. Softsurfer.com.<br/>
|
|
</div>
|
|
<h2>Parameters</h2>
|
|
<dl class='parameters'>
|
|
<dt>Points <div class='type'>Input Shapes</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Convex Hull <div class='type'>Output Shapes</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Hull Construction <div class='type'>Choice</div></dt><dd>This option does not apply to simple point layers. <div class='constraints'>Available choices: one hull for all shapes, one hull per shape, one hull per shape part</div></dd>
|
|
</dl>
|
|
</body></html>
|