[vtkusers] Boolean operations with tubeFilters partially hide geometry

[Jon Haitz Legarreta]

Dear James,
thank you for the tips.

I am trying to figure out if your vtkImplicitPolyDataDistance class
contribution would help me somehow solve the issue.

Would you be able to post some simple example on how to use it?

Thank you.
JON HAITZ




On 1 October 2012 10:41, Malsoaz James <jmalsoaz at yahoo.fr> wrote:

> Hi,
>
> You should be aware that the vtkBooleanOperationPolyDataFilter has several
> bugs.
> You can find information about it on previous threads:
>
> http://vtk.1045678.n5.nabble.com/PolyData-Boolean-operation-problem-td5714926.html
>
> http://vtk.1045678.n5.nabble.com/Holes-in-mesh-after-vtkBooleanOperationPolyDataFilter-td5713284.html
>
> Best
> James
>
>   ------------------------------
> *De :* Jon Haitz Legarreta <jhlegarreta at vicomtech.org>
> *À :* vtkusers at vtk.org
> *Envoyé le :* Mercredi 26 septembre 2012 17h48
> *Objet :* [vtkusers] Boolean operations with tubeFilters partially hide
> geometry
>
> Hi there,
> I am facing some problems with a boolean filter
> (vtkBooleanOperationPolyDataFilter) applied to a pair of vtkTubeFilter. The
> thing is that for my application the vtkTubeFilterfits better than a
> vtkCylinderSource. Besides, I want the capping property of the tubeFilter
> to be off.
>
> I use a vtkTriangleFilter in order to transform the tubeFilters into
> objects that the boolean filter can deal with.
>
> When performing an intersection boolean operation, it seems like capping
> is necessary in order to get acceptable results. However, since I cannot
> erase the cap to the actor yielded by the boolean operator, this is not a
> good solution.
>
> On the other hand, I can give some "thickness" to the tubeFilter by
> creating an "inner" tubeFilter and then applying the difference boolean
> operator.
>
> However, then the problem is that the inner wall of the resulting actor
> seems not to have a geometry. Or at least it is not shown.
>
> Setting the backfaceculling property on does not change things.
>
> I have attached some images in order to clarify things.
>
> Any guess?
>
> Thank you,
> JON HAITZ
>
>
>
> _______________________________________________
> 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
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20121008/08cba2b3/attachment.htm>