[vtkusers] Extract polylines from the surface

[Cory Quammen]

David,

This example shows you how to get part of the way there:

http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/BoundaryEdges

It will extract all the boundary edges, though, not just the yellow edge.

Hope that helps,
Cory

On Wed, Sep 4, 2013 at 8:06 AM, david bahn <bahndavid2006 at gmail.com> wrote:

> Hi cory,
>           i have to extract polyline(shown in yellow color) as it is given
> in the given figure, which i am attaching with this mail
>
>
>
> [image: Inline image 1]
>
>
>
> On Wed, Sep 4, 2013 at 1:50 PM, Cory Quammen <cquammen at cs.unc.edu> wrote:
>
>> David,
>>
>> It would help if your questions were more specific. For instance,
>> which polylines do you want to extract from your surface?
>>
>> Do you want all the edges between polygons? See
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/ExtractEdges
>>
>> If you want to extract edges that have only one polygon on a side for
>> instance (to give one definition of the bounds of the surface), see
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/BoundaryEdges
>>
>> Thanks,
>> Cory
>>
>>
>> On Wed, Sep 4, 2013 at 5:33 AM, david bahn <bahndavid2006 at gmail.com>
>> wrote:
>> > Hi,
>> >    I have to extract polylines from the surface, anybody can suggest
>> me, how
>> > can i do this?
>> >
>> >
>> > 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:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://www.vtk.org/mailman/listinfo/vtkusers
>> >
>>
>>
>>
>> --
>> Cory Quammen
>> Research Associate
>> Department of Computer Science
>> The University of North Carolina at Chapel Hill
>>
>
>


-- 
Cory Quammen
Research Associate
Department of Computer Science
The University of North Carolina at Chapel Hill
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20130904/fe0ee2e7/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 152504 bytes
Desc: not available
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20130904/fe0ee2e7/attachment.png>