[Paraview] Isosurface

[Berk Geveci]

If this is a regular, cartesian grid, you can use image data. If
rectilinear, use rectilinear grid. If this is curvilinear grid, you
can use structured grid. Otherwise, you have to create cells somehow.

-berk

On Tue, Jan 20, 2009 at 10:17 PM, Mare Libero <mareliber27 at 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
>
>
>
>
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