[SciPy-user] Triangulation of L-shaped domains

Nils Wagner nwagner at iam.uni-stuttgart.de
Fri Jun 30 08:52:40 CDT 2006


John Hunter wrote:
>>>>>> "Nils" == Nils Wagner <nwagner at iam.uni-stuttgart.de> writes:
>>>>>>             
>
>     Nils> Hi all, I have installed delaunay from the sandbox.  How can
>     Nils> I triangulate L-shaped domains ?
>
>     Nils> My first try is somewhat unsatisfactory (delaunay.png) ?
>     Nils> How can I remove the unwanted triangles down to the right ?
>
> delaunay assumes a convex shape, which your domain is not.  I think
> you'll need a more sophisticated mesh algorithm.
>
>   

A short note in the docstring would be very helpful.
**delaunay assumes a convex shape**

Nils


help (delaunay) results in

Help on package scipy.sandbox.delaunay in scipy.sandbox:

NAME
    scipy.sandbox.delaunay - Delaunay triangulation and interpolation tools.

FILE
    /usr/lib64/python2.4/site-packages/scipy/sandbox/delaunay/__init__.py

DESCRIPTION
    :Author: Robert Kern <robert.kern at gmail.com>
    :Copyright: Copyright 2005 Robert Kern.
    :License: BSD-style license. See LICENSE.txt in the scipy source 
directory.

PACKAGE CONTENTS
    _delaunay
    interpolate
    setup
    testfuncs
    triangulate

> You might succeed by breaking your L shaped domain into two rectangles
> and treating them separately.
>
>
>
> JDH
>
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