Hi,
>>>>> "AL" == Anders Lyckegaard <[EMAIL PROTECTED]> writes:
AL> Dear list, I hope that you accept newbie questions.
That is not a problem so long as you'll put up with my slow
responses. :-)
AL> My goal is to draw a circular cylinder or some other embedded
AL> manifold with some objects moving on top of the cylindrical
AL> surface.
[...]
AL> The first thing I have tried is to generate a VTK file with
AL> the points of the cylinder using pyVTK. (I have attached the
AL> file). I have generated these as unstructured data.
AL> Next I opened the file with mayavi, used a Delaunay3D filter
AL> and a SurfaceMap module. My problem is that the surface I get
AL> is not completely filled out. There are some open triangles in
AL> the surface which are not rendered. I have tried tweaking the
AL> settings of the Delaunay filter, but I haven't been able to
AL> close the open triangles.
The delaunay3D filter is not the best choice for this. If your
manifold is something for which you have a suitable set of points you
can work with (i.e. a suitable atlas) then you'd be better off
explicitly generating the points and connectivity for the data. If
your manifold is a cylinder embedded in 3D then you could also use
vtkCylinderSource to generate the points and polydata for you. For
example (untested):
import vtk
cs = vtk.vtkCylinderSource()
cs.Set<YourFavoriteProperties>
cs.Update()
pd = cs.GetOutput()
w = vtk.vtkPolyDataWriter()
w.SetInput(pd)
w.SetFileName('foo.vtk')
w.Write()
You could also take a look at tvtk if you are interested in scripting
from Python and using VTK
https://svn.enthought.com/enthought/wiki/TVTK
HTH.
cheers,
prabhu
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