[vtk-developers] Re: Generator for linear and non-linear VTK cells

[Soeren Gebbert]

Dear developers,
a shiny new version of the vtk cell generator is available for download.
A better parser error handling, more cell types and different shapes for
the generated plate are supported .

Supported cell types:
    VTK_POLY_VERTEX                       2
    VTK_TRIANGLE                          5
    VTK_QUAD                              9
    VTK_TETRA                             10
    VTK_HEXAHEDRON                        12
    VTK_WEDGE                             13
    VTK_QUADRATIC_TRIANGLE                22
    VTK_QUADRATIC_QUAD                    23
    VTK_QUADRATIC_HEXAHEDRON              25
    VTK_QUADRATIC_WEDGE                   26
    VTK_BIQUADRATIC_QUAD                  28
    VTK_TRIQUADRATIC_HEXAHEDRON           29
    VTK_QUADRATIC_LINEAR_QUAD             30
    VTK_QUADRATIC_LINEAR_WEDGE            31
    VTK_BIQUADRATIC_QUADRATIC_WEDGE       32
    VTK_BIQUADRATIC_QUADRATIC_HEXAHEDRON  33
    VTK_CUBIC_EDGE                        34
    VTK_BICUBIC_QUAD                      36
    VTK_TRICUBIC_HEXAHEDRON               37


The following shapes are implemented:
http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/vtkcellgen_test_cell_9_standard.png
http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/vtkcellgen_test_cell_9_sinus.png
http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/vtkcellgen_test_cell_9_screw.png
http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/vtkcellgen_test_cell_9_parabel.png
http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/vtkcellgen_test_cell_9_cosinus.png
http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/vtkcellgen_test_cell_9_hyper.png

Each data set is generated with node numbers, cell numbers, scalar, vector
and tensor
cell and point data.

The cell generator is available here:
http://www-pool.math.tu-berlin.de/~soeren/VTK/vtkcellgen_0.4.tar.gz

Any suggestions are welcome.

Best regards
Soeren


2007/6/11, Soeren Gebbert <soerengebbert at googlemail.com>:
>
> Dear developers,
> i have implemented a simple cell generator, to support the debugging of
> the non linear cell types im developing. The program called
> "vtkcellgen" is a very simple cell generator to support the generation
> of several linear, quadratic and cubic VTK cell types.
> Based on one cell type a flat plate (unstructured grid) will be created
> with a specific number of
> cells in x and y direction. The output is written as
> VTK legacy ASCII format to stdout or a specified file.
>
> It is possible to generate large datasets with variable z elevation,
> for performance and tessellation tests.
> Here is a screenshot of a dataset generated with vtkcellgen. 20x30
> tri-cubic-hexahedrons are
> visualized with a modified version of paraview-2.6.1:
>
> http://www-pool.math.tu-berlin.de/~soeren/VTK/Pictures/TriCubicHexahedronGrid_vtkcellgen.png<http://www-pool.math.tu-berlin.de/%7Esoeren/VTK/Pictures/TriCubicHexahedronGrid_vtkcellgen.png>
>
> The program is implemented in simple C and has no dependences to VTK or
> other libraries.
>
> These cell types are supported:
>     VTK_POLY_VERTEX                       2
>     VTK_QUAD                              9
>     VTK_HEXAHEDRON                        12
>     VTK_QUADRATIC_TRIANGLE                22
>     VTK_QUADRATIC_QUAD                    23
>     VTK_QUADRATIC_HEXAHEDRON              25
>     VTK_QUADRATIC_WEDGE                   26
>     VTK_BIQUADRATIC_QUAD                  28
>     VTK_TRIQUADRATIC_HEXAHEDRON           29
>     VTK_QUADRATIC_LINEAR_QUAD             30
>     VTK_QUADRATIC_LINEAR_WEDGE            31
>     VTK_BIQUADRATIC_QUADRATIC_WEDGE       32
>     VTK_BIQUADRATIC_QUADRATIC_HEXAHEDRON  33
>     VTK_CUBIC_EDGE                        34
>     VTK_BICUBIC_QUAD                      36
>     VTK_TRICUBIC_HEXAHEDRON               37
>
> The cubic cell types are not available for now, but in case i get the
> implementation stable
> and the tessellator and derivation functions running, i will try to make
> them public.
>
> The link to the sources of the cell generator:
> http://www-pool.math.tu-berlin.de/~soeren/VTK/vtkcellgen.tar.gz<http://www-pool.math.tu-berlin.de/%7Esoeren/VTK/vtkcellgen.tar.gz>
>
> Maybe you are interested.
>
> Best regards
> Soeren
>
>
>
>
>
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