[vtkusers] How to clip a 3D mesh with a curve surface?

[Goodwin Lawlor]

Hello pnt1614,

Have a look at a similar C++ example of vtkSelectPolyData (from Bill's VTK
examples)

https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/SelectPolyData/

FYI, the selectionPoints object defines the curves that clips yours surface.

hth

Goodwin

On Wed, Mar 21, 2018 at 12:24 AM, pnt1614 <minpu.code at gmail.com> wrote:

> I have searched on the google and there is an answer
> (http://vtkusers.public.kitware.narkive.com/UA15hWtq/
> mesh-cutting-using-freehand-curve)
> but I do not completetly understand.
>
> A part of answer is
>
> Try out this pipeline:
> (in Tcl but it's the same idea in any language)
>
> vtkPoints selectionPoints
> selectionPoints InsertNextPoint 1.0 1.0 1.0
> # etc...
>
> vtkSelectPolyData select
> select SetLoop selectionPoints
> # connect your data here
> select SetInputConnection [mydataFilter GetOutputPort]
> select GenerateSelectionScalarsOn
> select SetSelectionModeToLargestRegion;
>
> vtkClipPolyData selectclip
> selectclip SetInputConnection [select GetOutputPort]
> selectclip SetValue 0.0
>
> I am using C++ and I do not understand "selectedPoints" part. Is there
> someone using Tcl? Please help me. Thank you
>
>
>
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