[vtkusers] Polydata cross-section contours

[Koteswara Rao Ruvva]

I am adding more details to this question.
Basically I am comparing two polydata sets (target and source). These are STL files with triangular facets. I am comparing the polydata sets in the following way: 1. Using the ImplicitPolyDataDistance function to get the distance from a point on the source to target polydata. I use this to find the distance  at mouse locations. This works perfect.2. Creating cross-section contours of source and contour using the vtkCutter and visually compare the contours.
However, I want to the source contour to be within + or - 0.2mm tolerance from target contour. It would be easy for me if I have two more contours with +0.2 offset and -0.2 offset from the target contour. This makes my visual comparison easier.
I tried to render the target contour with 0.4 thickness which solves this problem partly, but when I zoom in, the thickness does not change.
Appreciate your feedback. Thank you.
On Monday, June 26, 2017, 11:57:11 AM PDT, Koteswara Rao Ruvva <ruvva at yahoo.com> wrote:

Hello All,
I need to create offset contours for a contour (polygon) that is created by vtkCutter. Basically I need to create an inner and outer contours by a specific offset for cutter contour. I am wondering if there is a way in VTK to get this.
Thank youRao
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