<div>Hi ! </div>  <div>I am facing with a problem regarding a mesh deformation. I have a contour surface, i need to deform a part of the surface. How can this be done?</div>  <div>&nbsp;</div>  <div>I have tried using the following techniques </div>  <div>&nbsp;&nbsp; vtkWarpTo - But the entire geometry gets deformed. </div>  <div>&nbsp;&nbsp; vtkAbstractTransform - I have set new positions of a part of the mesh and tried to use the</div>  <div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TransformPoints() method. i.e.</div>  <div>&nbsp;</div>  <div>&nbsp;</div>  <div>&nbsp;&nbsp;&nbsp;- vtkPoints *points = vtkPoints::New();</div>  <div>&nbsp;&nbsp; - points-&gt;SetPoint( i, x);&nbsp; // i, is a set of point ids, x is the new position of this point id.</div>  <div>&nbsp;&nbsp;&nbsp;-
 transform-&gt;TransformPoints(points,points);</div>  <div>&nbsp;&nbsp; -&nbsp;transFilter-&gt;SetTransform(transform);</div>  <div>&nbsp; this is the pipeline</div>  <div>&nbsp;&nbsp;&nbsp; vtkDataSetReader----&gt;vtkExtractVOI-----&gt;vtkContourFilter-----&gt;vtkBrownianPoints----&nbsp;&nbsp; &gt;vtkDataSet---&gt;vtkTransformFilter (with vtkAbstractTransform input)----&gt;vtkPolyDataMapper----&gt;vtkActor----&gt;vtkRenderer----&gt;vtkRenderWindow-----&gt;vtkRenderWindowInteractor</div>  <div>&nbsp; </div>  <div>Regards,</div>  <div>Brian</div>  <div>&nbsp;&nbsp;&nbsp; </div>  <div>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</div>  <div>&nbsp;</div><p>&#32;

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