convhulln with joggle option

[Pedro Tarrafeta]

Hi,

Actually this is not a question but rather an answer to the question I've been 
looking thru and couldn't find.

I use the geometry package, specially the convhulln function. By default, this 
function calls the qhull library without the QJ option (joggle input option). 
In the case of coplanar points in a facet it kept giving me errors (memory 
panic and kickin me out). Since I needed this I've been searching how to do 
it. Althogh it might seem obvious for someone more knowledgeable than I, this 
might help others.

Find the file:
        convhulln.cc
Look for line that says:
        sprintf(flags,"qhull s Tcv");
and change it to:
        sprintf(flags,"qhull s QJ Tcv");
Compile either with mkoctfile or make.

Copy the newly created convhulln.oct to the desired directory in octave's 
loadpath.

Regards,
Pedro



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------