[vtkusers] How to cut a hole in polydata?!

[Alan Smithee]

Hallo Fabian!

vtkSphereSource gives you a vtkPolyData and not a function. Try to use 
vtkSphere instead.

Am 21.03.2012 12:44, schrieb Fabian:
> Hello,
>
> first of all: THANKS ALOT for Your help.
>
> Especially the vtkClipPolyData idea looks very good.
>
> I 've been trying for some time now using examples and tutorials; but slowly
> I am going nuts!
>
> I tried vtkCutter and vtkClipPolyData but in both cases I cannot set my
> sample sphere as implicit function.
>
> In purpose of testing I created a polygon and tried to cut a reound hole in
> it using a sphere.
> My code is:
>
>    vtkSmartPointer<vtkSphereSource>   Sphere    =
> vtkSmartPointer<vtkSphereSource>::New();
>                 Sphere ->SetRadius(0.2);
>                 Sphere ->SetCenter(0.5,0.5,0);
>
>     vtkSmartPointer<vtkClipPolyData>    Clipper     =
> vtkSmartPointer<vtkClipPolyData>::New();
>                 Clipper ->SetInput(polygonPolyData);      //my created
> polygon
>                 Clipper ->SetClipFunction(Sphere);<- *This creates me an
> error saying: unable to convert 'vtk SphereSource *' to
> 'vtkImplicitFunction'.*
>
> All fitting examples I read work like that. I am going crazy!
>
>
> The same happens using the vtkCutter.
>
> What am I doing wrong?
>
> Greetings
> Fabian
>
>
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