[vtkusers] Drawing half a million "vtkParametricEllipsoid"s

[David Doria]

On Wed, May 22, 2013 at 9:23 AM, David E DeMarle
<dave.demarle at kitware.com> wrote:
> vtkGlyph3D will be more efficient. vtkGlyph3DMapper will be still more
> efficient.
>
> The concept you want is to define a single data set with points at the
> locations where you want the elipsoids and the rotation matrices encoded
> into a vector field on those locations, then apply either glypher to place
> and orient a single ellipsoid instance onto that data set.


That is, create a single mapper and a bunch of actors that all use
that mapper. Then you apply the transformations to the actors.

David