On 21 Oct 2010, at 10:05, JuanPi wrote: > Dear all, > > I have been trying to documet my functions with some examples. I am > using the format described in >> help demo > > I have a function point2triag that works perfectly when I call it form > Octave's terminal, but when I use >> demo(point2triag) > I am getting an error of undefined elements in the body of the > function. > > The header is > %% p2T = point2triag(T) > % p2T = point2triag(T,degMax) > % > % Given a triangulation T produces the matrix that indicates for > each point to > % which triangles it belongs to. > % The tinagulation T is matrix fo size Ntx3 where each element is an > integer > % indicating the position of a node in a list of vertices. > % Since different points can belong to a differnt number of > triangles, the > % output has NaNs as unused elements. > % > % The optional argument degMax indicates the maximum number of > trinagles a point > % can belong to. If your mesh has a point belonging to more than 10 > trinagles > % you should use degMax > 10 (default value). > % > %!demo > %! coord=rand(10,2); > %! Tri=delaunay(coord(:,1),coord(:,2)); > %! p2T = point2triag(Tri) > > The last 3 lines defines the demo. They work perfectly in the terminal > I am using Octave 3.2.4 compiled in Ubuntu 10.04 > > Thanks > -- > JuanPi Carbajal
JuanPi, If you are working a lot with triangular meshes you might want to take a look at the package msh in octave forge: http://octave.sourceforge.net/msh/index.html For example, it would be nice to add the functionality of your function 'point2triag' to the function: http://octave.sourceforge.net/msh/function/msh2m_topological_properties.html just one question, why are you using a matrix full of NaNs and not a cell-array to store p2T? I think using p2T would make it very easy to write a vectorised version of 'point2triag'... c. ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
