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## Re: 3d plotting, griddata and deluanayn

**From**: |
Kai Habel |

**Subject**: |
Re: 3d plotting, griddata and deluanayn |

**Date**: |
Tue, 4 Feb 2003 01:27:42 -0600 |

>*I have some points given by x, y and z coordinates (roughly 13000 points),*
>*originating from some measured lines. The points are not measured on a*
>*regular grid, which complicates plotting.*
>*However, I have found a function called griddata, which seems to do what I*
>*want, but it in turn uses the function delaunayn, which I do not have. I have*
>*managed to find a cc file on the repoitory, bit I do not know how to compile*
>*it.*
As Paul K. has mentioned you should first install the dynamic lib for qhull.
The Readme at sourceforge is a bit out of date. If you are on *unix* get the
most recent qhull (qhull2002.1) from:
http://www.thesa.com/software/download/qhull.html or
http://www.geom.umn.edu/software/qhull/
Now you have to build and install qhull. If libqhull.so is installed (e.g. in
/usr/local/lib) you can compile delaunayn.cc via
mkoctfile -v delaunayn.cc -lqhull
Bye Kai
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