[vtkusers] vtkSphericalTransform

[Alessandro Artusi]

Hi,

I have noticed that vtkSphericalTransform does not allow to define your own
parameters for the spherical transform i.e. in case i want to map the data
based on the depth.
So to overcome this problem I need to read the data back from the
vtkContourFilter and manipulate them with my own transformation and then I
will use vtkPolydatamapper to map the data.

How may i do it? and how will be the form of the data structure of these
data?

Thanks,
Alessandro.

On Mon, Oct 26, 2009 at 10:00 AM, Alessandro Artusi <
artusialessandro4 at googlemail.com> wrote:

> Thanks a lot Jerome, now I got the mapping on spherical coordinates. I have
> other problems but the spherical transform is working.
>
> Thanks a lot,
> Alessandro.
>
>   On Sun, Oct 25, 2009 at 2:41 PM, Jérôme <jerome.velut at gmail.com> wrote:
>
>> I don't understand... vtkTransformPolyDataFilter is specialized for
>> polygonal datasets, and vtkContourFilter's output is also polygonal.
>> Did you change the GetOutput( ) to GetOutputPort( ) as I told you? The
>> best you can do is to copy/paste the error message, it would be very helpful
>> for our understanding.
>>
>> Best regards,
>>
>> Jerome
>>
>> 2009/10/23 Alessandro Artusi <artusialessandro4 at googlemail.com>
>>
>>> Hi Jerome,
>>>
>>> what i get is an error vtkTransformPolydataFilter  is expecting as input
>>> not a Polydata as the output from the vtkcontourFilter.
>>>
>>> Any idea?
>>>
>>> Thanks,
>>> Alessandro.
>>>   On Fri, Oct 23, 2009 at 5:30 PM, Jérôme <jerome.velut at gmail.com>wrote:
>>>
>>>> Hi,
>>>> You should have to use "GetOutputPort" together with SetInputConnection.
>>>> You should also say what does not work !
>>>>
>>>> Hope that helps,
>>>> Jerome
>>>>
>>>> 2009/10/23 Alessandro Artusi <artusialessandro4 at googlemail.com>
>>>>
>>>>>   Hi,
>>>>>
>>>>> I want to transform the output of the vtkConoturFilter in spherical
>>>>> coordinates.
>>>>>
>>>>> I am using vtkTransformPolydataFilter to apply the
>>>>> vtkSphericalTransform to thr utput of the vtkcontourFilter but does not
>>>>> work.
>>>>>
>>>>> code:
>>>>> sp = vtkSphericalTransform()
>>>>> t = vtkvtkTransformPolydataFilter()
>>>>> t.SetInputConnection(contour.GetOutput()) #conotur is the output of the
>>>>> vtkContourFilter
>>>>> t.SetTransform(sp)
>>>>>
>>>>> Some one can help?
>>>>>
>>>>> Thanks,
>>>>> AA
>>>>>
>>>>> _______________________________________________
>>>>> 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/20091026/3454879f/attachment.htm>