[vtkusers] vtkImagePlaneWidget offset from cut plane

[Shashwath T.R.]

Hi Bjorn,
As I recall, vtkImagePlaneWidget already has a polydata describing the
boundary of the plane. You could get that and manipulate it instead of
mucking about with a cutter / tube filter...

You can either directly manipulate the plane property (
http://www.vtk.org/doc/nightly/html/classvtkImagePlaneWidget.html#aa967a678dc64d006ef7d9c9bce703e77)
or get the polydata (
http://www.vtk.org/doc/nightly/html/classvtkImagePlaneWidget.html#a118b91779af7e29ab0162b6109531b95)
and send it to the tube filter if you really can't do without the tubes.

HTH
Shash

On Fri, Mar 11, 2011 at 12:53 AM, Bjorn Oksnevad <boksnevad at gmail.com>wrote:

> Hello,
> I am using a vtkImagePlaneWidget to define a cutting plane for a vtkCutter.
>  The vtkCutter is then used to create tube outlines where the cut plane
> intersects some 3d mesh structures.  However, when I render the resulting
> outline, the outline tubes are slightly offset from the vtkImagePlaneWidget
> in the direction of the normal.  I was expecting the outlines to be
> positioned exactly on the vtkImagePlaneWidget plane, since I used
> GetOrigin() and GetNormal() from the plane widget to define the cutting
> plane.
>
> Has anyone experienced this and have a solution/explanation?
>
> Thanks in advance!
> Bjorn
>
>
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