[vtkusers] vtkContourFilter precision with vtkPlane

[Henning Meyer]

nope - it's a problem of vtkContourFilter not finding the correct boundaries.
both examples use the same number of samples.
for clarity I updated the example file - see attachement.

2012/9/21 Bill Lorensen <bill.lorensen at gmail.com>:
> Looks like an aliasing problem. http://en.wikipedia.org/wiki/Aliasing
>
> You need to increase the samples.
>
>
> On Fri, Sep 21, 2012 at 4:11 AM, Henning Meyer <tutmann at gmail.com> wrote:
>>
>> Hi All,
>>
>> encountered a strange behaviour of vtkContourFilter. Basically the
>> quality of the generated mesh dramatically changes, when the scale of
>> the model is changed (with adapted dims and bounds of the
>> vtkSampleFunction).
>> For me, this only happens in combinations of vtkPlane or vtkBox with
>> vtkImplicitBoolean.
>>
>> I modified this example a bit:
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/ImplicitFunctions/ImplicitSphere
>>
>> Please have a look a the attached sources - I'm thankful for any hint.
>>
>> Henning
>>
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>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
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