[vtk-developers] interface elements

[George Zagaris]

Hi Andreas,

Perhaps a less intrusive way to achieve what you describe
(assuming that the interface elements can be represented
with what VTK currently provides) is to add a CellDataArray
to your finite element mesh which flags whether or not an
element is an interface element or not, e.g. the flag is set to
"1" if an element is an interface element and "0" otherwise.
Then, the threshold filter can be used transparently to filter
out those elements.

Hope this helps.

Best Regards,
George


> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 4 Apr 2011 12:38:29 +0000
> From: Andreas Buykx <A.Buykx at tnodiana.com>
> Subject: [vtk-developers] interface elements
> To: "vtk-developers at vtk.org" <vtk-developers at vtk.org>
> Message-ID:
>        <65D987BE62E58141AA480A59A8B5BBEAF8EF40 at srv-mail.diana.local>
> Content-Type: text/plain; charset="koi8-r"
>
> Our finite-element application has 'interface elements' which are used to model discontinuities between 'conventional' elements. We would like to be able to visualize these as transparent elements with one or more lines connecting the sides of the interface element. For this we need to filter such elements and process them in a proper way. What would the preferred way of discriminating between interface and conventional elements be? Should we add a boolean attribute to each cell specifying whether it is an interface element?
>
> Thanks,
> Andreas Buykx
> Senior Software Engineer
>
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