[vtkusers] vtkTransform regarding

[Bill Lorensen]

Your single transform is enough.

On Sun, Sep 2, 2012 at 12:45 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:

> Hi all,
>
> I am wondering what is the right way of applying
> translate-rotate-translate using vtkTransform. Right now I am doing this by
>
> tr->PostMultiply();
> tr->Translate(x,y,z); //where tr is a vtkTransform
> tr->RotateZ(90.0);
> tr->Translate(-x,-y,-z);
>
>
> pdtf->SetTransform(tr);//pdtf is a vtkPolyDataTransfromFilter
>
> I read somewhere that PostMultiply() applies transform in the order
> specified. Does this really apply translation twice or
>
> should I translatr once and apply rotation then used another vtkTransform
> to translate it back?
>
> Any prompt hints are highly appreciated!
>
> Thanks
>
> Jothy
> --
> Jothybasu Selvaraj
> PhD Student
> University of Liverpool
> UK
>
>
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-- 
Unpaid intern in BillsBasement at noware dot com
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