martin_helm schrieb:
Hello,
this post was first on the graphics list, but I deleted it by accident,
since I noticed that the graphics list seems to be allmost dead I put it
here.
The situation:
I could not find an isosurface function similar to matlab or marching
cubes algorithm in octave. So I recently made my own one. It creates a
triangulation from a scalar function on a meshgrid (it can be found at
http://www.mhelm.de/octave/m/marching_cubes.m).
If it is usefull to someone I would be glad to receive a feedback. I
preferred a pure .m file implementation since the performance is good
enough for my needs and I will enhance it to a complete isosurface
function compatible with matlab.
Since I do not intend to event the wheel twice, can someone point me to
an existing implementation if there exists one?
Can someone give me the information if "trisurf" will be implemented in
the next version of octave (3.2) or in octave forge, I couldn't find out,
although I found discussions about trisurf in mailing lists?
For the moment I use octaviz for things like that because it still gives
me interactive graphics with vtk_trisurf even for large datasets (e. g.
triangle meshes with >1.6 M triangles). I wonder if something similar
will be available with the new fltk backend.
I checked the development sources but could not find trisurf. The
enhanced patch function with fltk and jhandles gives a similar
functionality but seems to have some problems with the shading settings.
Hi Martin,
I recently have started to implement isosurface.m to create some volumetric
output with Octave but it still is in a very early stage and not good
enough to be posted here - don't know how long it will take me to finish it
but maybe I even must not finish it: Are you planing to work on isocaps,
isonormals, etc. too? If yes, then I will rethink my effort for iso* and go
on with something else?
Best regards,
Thomas