[vtkusers] Fill interior 3D object

[Alex Malyushytsky]

You may try to use boolean operations for computing the "stub".

http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/BooleanOperationPolyDataFilter

If for example you have sphere and you slice it with a plan.
Boolean intersection of such 2 objects will be a polygon you can display (
you probably can use vtkFillHolesFilterto triangulate it )
to restore the look of solid after slicing.

Hope this helps,
     Alex



On Tue, Mar 17, 2015 at 10:46 PM, Muhammad Nour <mnour.ai at hotmail.com>
wrote:

> Dear Alex,
>
> Thank you very much for your reply.
>
> I can make presentation look like solid (e.x. by using opacity property).
>
> But I want to slice an object, and result must be filled as if the object
> is solid.
>
> Suppose my object is a torus, so I have slice as two circles (one inside
> other).
>
> I want to fill space between these circles.
>
> I have tried using vtkDelaunay3D class but it distorts objects.
>
> Also I tried using vtkFillHolesFilter filter but it fills all empty space.
>
> I hope I explaine my point.
>
> Thank you again.
>
> ------------------------------
> Date: Tue, 17 Mar 2015 18:34:00 -0700
> Subject: Re: [vtkusers] Fill interior 3D object
> From: malyushytsky at gmail.com
> To: mnour.ai at hotmail.com
> CC: vtkusers at vtk.org
>
>
> AFAI understand there is no solid objects there are presentations of
> solids.
> Such presentation may look like solid unless you are inside the object.
> If that not what you want you are on your own.
>
> Similar to 2d , 3d  objects exist for a solely purpose of presentation.
> You may 'subdivide' your sphere for example and construct it from the
> number of hexahedrons ( like circle from quadrilaterals),
> but even if you do so you will see those elements when you move your
> camera too close not like solids.
>
> But if it what you want , you may look at Delaunay3D.
>
> Regards,
>     Alex
>
>
> On Sat, Mar 14, 2015 at 11:20 PM, Muhammad Nour <mnour.ai at hotmail.com>
> wrote:
>
> Hi all,
>
> I am using MS visual studio 2008 and vtk 5.10
>
> I want to fill interior of some objects (like sphere), so they must be
> solid.
>
> I've tried vtkFillHolesFilter class but it fills holes of surface not
> inside object.
>
> Is there any other filter or class can do it?
>
> Thank you very much
>
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