[vtkusers] HELP!!! How to derive a new Cell type.

[Will Schroeder]

Hi Song-

>At 12:16 AM 11/14/2001 -0600, Song Li wrote:
>Hi,
>    Does anybody has experience to derive new cell types ???? any online 
> tutorials , source code ....... I can take a look at ??? Thanks!
>--

To derive a new cell type you'll typically do the following:

1) derive from vtkCell or vtkCell3D. This means overloading any virtual 
functions consistent with your new cell type; as well as implementing all 
pure virtual functions. This is the hard part.

2) If you want to use use the method vtkDataSet::GetCell(id,genericCell), 
make sure that you extend vtkGenericCell to know about your new cell type. 
Also add a #define to vtkCellType.h to reflect the new type.

3) If you want to use vtk file formats, etc. you'll have to modify 
readers/writers to recognize the new type.

Will

William J. Schroeder, Ph.D
Kitware, Inc.
469 Clifton Corporate Parkway
Clifton Park, NY 12065
will.schroeder at kitware.com
1-518-371-3971 x102
1-518-371-3971 (fax)
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