5.0 | 9 ratings Rate this file 63 downloads (last 30 days) File Size: 341.35 KB File ID: #10408

Contours for triangular grids

17 Mar 2006 (Updated 15 May 2006)

No BSD License

Generate smooth contours for functions defined on unstructured triangular grids

File Information
Description	Plots the contours of a function defined on an unstructured triangular grid directly, without the need to interpolate back onto a Cartesian array. I have attempted to replicate much of the functionality of the regular "contour" function. Type "help tricontour" Type "contourdemo" for some examples You may also find my mesh generator "mesh2d.m" in the physics and Chem section helpful. UPDATE 11/05/2006 - Can now be used with clabel - A bit faster UPDATE 15/05/2006 - Much more accurate (now uses quadratic interpolation)
MATLAB release	MATLAB 6.5 (R13)
Zip File Content
Other Files	contour_stuff/contourdemo.m, contour_stuff/driven_cavity.mat, contour_stuff/tricontour.m, contour_stuff/vortex_shedding.mat

Tags for This File
Everyone's Tags	contours, graphics, mesh, plotting, specialized, unstructured
Tags I've Applied
Add New Tags	Please login to tag files.

Comments and Ratings (10)
20 Mar 2006	John D'Errico	Very nice. This is a function that should have been in Matlab itself since the day they provided trisurf and trimesh. It handled some troublesome cases I tried when I tried to break it. I'll give it a 5 rating because it deserves that rating. My only wish is that it was even more compatible with the contour functionality of matlab. For example, no handles are returned, in case you wish to set a line color or style. It might also be nice to provide a way to label the contours via clabel.
21 Mar 2006	M. Oswald	Very good contribution. I wish the author could extend the tricontour function to handle 3D triangle meshes as well.
21 Mar 2006	Kong Zuor	This is what I have been looking for since I start using Matlab. Great job well done! I wish to see this code in the next Matlab release. I find this code very useful to those who solve CFD problems with matlab. The author deserve my five star ranking. I would encourage the author to advance this code for 3D case. I am free at last! Many thanks
29 Mar 2006	Babak Asghari
05 May 2006	prabhakaran sundhararaju	it's very usefull for chemical, mechanical and civil. to analysis critical domain. i wish to develop 3D domain also
08 Aug 2006	Rabi Tahir	Works well... seems to be a bit slow, but I may be showing a bias (comparing with traditional fortran generated machine code)
13 Jan 2007	Friedemann Groh
03 Feb 2009	Clemens Moser	Works very well, there is just a minor issue: the contours are not interpolated at the boundaries of the surface .
19 Apr 2009	Nik F
01 Sep 2009	Jack Kohoutek

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Updates
11 May 2006	clabel support
15 May 2006	quadratic interpolation

Tag Activity for this File
Tag	Applied By	Date/Time
specialized	Darren Engwirda	22 Oct 2008 08:18:50
plotting	Darren Engwirda	22 Oct 2008 08:18:50
unstructured	Darren Engwirda	22 Oct 2008 08:18:50
mesh	Darren Engwirda	22 Oct 2008 08:18:50
contours	Darren Engwirda	22 Oct 2008 08:18:50
graphics	Darren Engwirda	22 Oct 2008 08:18:50

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