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## Re: 3d plotting, griddata and deluanayn

**From**: |
Etienne Grossmann |

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

**Date**: |
Tue, 4 Feb 2003 13:05:40 +0000 |

**User-agent**: |
Mutt/1.3.28i |

On Mon, Feb 03, 2003 at 10:46:18PM +0100, Andrass Ziska Davidsen wrote:
# 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.
Is there a 'natural' grid structure? I.e. are the 13000 points
arranged as a matrix, say 130x100, corresponding to a parameterized
surface? In that case, you could use the octave-forge function
vmesh().
I just improved the speed of this function (on octave-forge
CVS). Viewing a 100x100 surface takes ~10 secs on a PII/350MHZ.
Hth,
Etienne
# 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.
#
# Could someone please shed some light on this matter.
#
# regards
# andrass
# --
# Andrass Ziska Davidsen
# address@hidden
# DTU-stud.no.: c9603343
--
Etienne Grossmann ------ http://www.isr.ist.utl.pt/~etienne
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