[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Contour Plots? Delaunay Triangulations?

From: John Smith
Subject: Contour Plots? Delaunay Triangulations?
Date: Wed, 9 Jun 1999 21:11:31 +0100 (BST)

I will have some data collected at regular (r,theta) values on a 
polar grid. It might not be complete, or completely regular. 

I want to draw a contour map, preferably with layers of solid colours.
Grudgingly, I have had to admit that this is possible in Matlab. Is there
good Octave - or other free code - method?

The Matlab approach involves building a Delaunay triangulation over the
points, interpolating from the triangulation onto a regular 
xy grid, and finally contouring the regular grid. 

The Voronoi/Delaunay triangulation algorithms are good candidates
for inclusion within Octave - I think suitable C coded raw algorithms
exist. Has anyone built ".oct" implementations?

And are there any good ideas for drawing the contours? Gnuplot is a bit


John Smith 

Octave is freely available under the terms of the GNU GPL.  To ensure
that development continues, see
Instructions for unsubscribing:

reply via email to

[Prev in Thread] Current Thread [Next in Thread]