Yes, you need cells to create an isosurface. The cells specify how the scalar
field should be interpolated between points.
The easiest way to impose cells on your points is to run the Delaunay 3D filter
on them.
-Ken
On 1/20/09 8:17 PM, "Mare Libero" <marelibe...@yahoo.com> wrote:
Hi,
I am new to Paraview and I hope some of you can help me. I am trying to
visualize an isosurface. I used to work with Matlab where I would input the
data in 4D in the format: <X> <Y> <Z> <Intensity>
To use Paraview, I generated a dataset in VTK format as an unstructured grid
with no cells. The Intensities are associated to the corners of the cells as
follow:
# vtk DataFile Version 3.1 Volume ASCII DATASET UNSTRUCTURED_GRID POINTS 197173
FLOAT 1 1 1 1 1 6 1 1 11 ....
...
POINT_DATA 197173 SCALARS Intensities float LOOKUP_TABLE default
20799.3681311062 20803.8373905225 20806.6752675851......
When I open this file, Paraview correctly identifies minimum and maximum values
and the number of points. But I can't manage to visualize the contours.
Any suggestion? Do I need to generate CELLS data to draw isosurfaces? Can
Paraview generate an isosurface solely from POINTS data? Thanks in advance.
A
**** Kenneth Moreland
*** Sandia National Laboratories
***********
*** *** *** email: kmo...@sandia.gov
** *** ** phone: (505) 844-8919
*** web: http://www.cs.unm.edu/~kmorel
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