On Sat, Apr 17, 2010 at 01:05:49PM +0200, Luca Penasa wrote:
> > BUT i visualize a vtkobject loaded from a .vtk file in this way:
> > vtksource = tvtk.UnstructuredGrid(vtkUnstructuredGrid)
> > source = VTKDataSource(data = vtksource)
> > after loading the file i create all i need for visualizing, like in the
> > example cited above, in this way:
> > HasTraits.scene.engine.add_source(source)
> > from enthought.mayavi.modules.surface import Surface
> > surface = Surface()
> > HasTraits.scene.engine.add_filter(surface)
> > at the end i call configure_traits() for show the window
> > ---> is this the best way to insert a vtkUnstructuredGrid into a scene?
> If you start from a file, you can simply do:
> source = mlab.pipeline.open('file.vtk')
> I think this is not my case becouse i want to visualize/modify a
> vtkUnstructuredGrid object that other scripts loaded for me.
OK, then the code that you showed seems good to me. Maybe it would be
sightly nicer to call the 'to_tvtk' function on the vtk object, rather
the tvtk.UnstructuredGrid contrusctor, using the following:
from enthought.tvtk.api import tvtk
vtksource = tvtk.to_vtk(vtkUnstructuredGrid)
> I have tried calling update() on my VTKDataSource() object but maybe this
> only update the content of the VTKDataSource() object and not what is
> rendered into my window. How could i force a re-rendering?
I believe that you need to call the '.modified()' method of the vtksource
object before calling the 'update' method on the VTKDataSource.
HTH,
Gaël
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