<div dir="ltr"><div>Hi AC,<br><br></div>From a vtkPolyData (or any vtkPointSet) you'll want get the polydata's vtkPoints object through GetPoints() and on that object you can call InsertNextPoint(). To insert another cell into a polydata use the InsertNextCell() method on vtkPolyData. Keep in mind that for the VTK pipeline though that it's expected that filters do NOT modify their inputs.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 7, 2017 at 3:23 PM, alican <span dir="ltr"><<a href="mailto:alican1812@hotmail.com" target="_blank">alican1812@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I have looked into docs and examples, I have read a lot on this forum, there<br>
are options to delete points or cells, to replace a point or a cell, but no<br>
option to add. I know how to add point to a new polydata.<br>
I figured out that I can add a point to a new polydata and then use<br>
vtkAppendFilter.<br>
But it seems too complicate for so simple a task.<br>
<br>
So what should I do if I want to add a point or cell to existing polydata?<br>
Isn't there a simpler way?<br>
<br>
If it is a dumb question and I am missing something obvious, I am sorry.<br>
AC<br>
<br>
<br>
<br>
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