[vtkusers] Can we create a surface with faults or breakline?

[Arun Kharghoria]

David,
I really appreciate your response. I'll try your suggestions (it may be a
while though).

In my case z is NOT strictly a function of (x,y). The information primarily
comes from seismic analysis. Fault could be thought of as a discontinuity of
information at similar 'z' level because of seismic activity (as shown in
the website http://www.iris.edu/gifs/animations/faults.htm).

Thanks again,

-Arun

On Mon, Jan 18, 2010 at 2:58 PM, David Doria
<daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> wrote:

>  On Mon, Jan 18, 2010 at 3:51 PM, Arun Kharghoria <khargo at gmail.com>
> wrote:
> > David,
> > Thanks a lot for quick response.
> >
> > At this momemnt, I donot have the data sets in VTK format. Normally
> surface
> > is defined by XYZ points and faults (or called fault polygons) are
> defined
> > by XY points. Fault polygons are closed. Here is a bmp file that may help
> > you understand my question. The black (linear) holes are the result of
> > presence of faults on the surface.
> >
> > Thanks a lot for your time again.
> > -Arun
> >
> > On Mon, Jan 18, 2010 at 2:35 PM, David Doria <daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> >
> > wrote:
> >>
> >> On Mon, Jan 18, 2010 at 3:29 PM, Arun Kharghoria <khargo at gmail.com>
> wrote:
> >> > Is there a way to create a surface with faults or breakline in VTK?
> >> >
> >> > Thanks for your response,
> >> > -AK
> >>
> >> Do you have an example of this type of data set? You should be able to
> >> create any kind of surface you want - it is just topology (triangles,
> >> polygons, etc) defined on some geometry (point coordinates).
> >>
> >> Thanks,
> >>
> >> David
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>
> Arun,
>
> Please keep the conversation on the mailing list.
>
> So you have a terrain map, where z is strictly a function of (x,y)?
> And for some (x,y), the z value is not defined (the "fault" points).
> How is the topology defined currently? Is it a set of triangles on the
> points?
>
> This example demonstrates this type of terrain map surface.
> http://www.cmake.org/Wiki/VTK/Examples/Filtering/Delaunay2D
>
> To create your faults, you can used a constrained triangulation:
> http://www.cmake.org/Wiki/Constrained_Delaunay_Triangulation_(2D)
>
> Take a look at these examples and see where they get you. If you still
> have trouble don't hesitate to ask.
>
> Good luck,
>
> David
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
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