>From the <a href="http://www.vtk.org/doc/nightly/html/classvtkTransform.html">docs</a> I would say it concatenates. If you want to reset it just call Identity(), no need to delete.<br><br><div class="gmail_quote">On Thu, Nov 10, 2011 at 18:20, Wenlong Wang <span dir="ltr"><<a href="mailto:scc.wwl@gmail.com">scc.wwl@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Dear all,<br><br>I'm using vtkTransform to transform my actor. I have a question on this.<br><br>If I do multiple transformation with the same vtkTransform object, would these transformation concatenate? For example, if I translate my actor as transform->Translate(10, 0), and then scale it again transform->Translate(20, 0). Would the result actor be moved on X direction by 30? What if the same situation happens in scale and rotate?<br>
<br>If it does concatenate, and I don't want it to be concatenate, should I delete the transform object and generate another one instead?<br><br>Thank you very much.<br><br>Best wishes<br>Long<br>
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