[vtkusers] vtkPolyData polys insertlocation problem

[Sungmin Hong]

Hello David,

When you look inside of the vtkPolyData, there is Polys which contains
information of NumberOfCells, InsertLocation and TraversalLocation, and so
on.

It looks like

Polys : 0x000 ... {NumberOfCells = 8928 InsertLocation = 0 TraversalLocation
= 0 ... } on VS 2008 when I load the polydata.

But when I save it, it looks like

Polys : 0x000 ... {NumberOfCells = 8928 InsertLocation = 35712
TraversalLocation = 0 ... }.

Thank you.

Sungmin

Ps. I am sorry that there was mailing server problem with me.
This mail might have been sent to you twice.


-----원본 메시지----- 
From: David Doria
Sent: Monday, November 28, 2011 10:21 PM
To: Sungmin Hong
Cc: vtkusers at vtk.org
Subject: [SPAM] Re: [vtkusers] vtkPolyData polys insertlocation problem

2011/11/28 Sungmin Hong <sungmin.hong85 at gmail.com>:
> Dear users,
>
> I currently have a problem with vtkPolyData and its polys.
>
> After I performed ICPTransform, I saved my vtkPolyData with
> vtkXMLPolyDataWriter.
>
> When I saved it, the polydata has approximately 8000 cells and 32000
> insertlocations in it.
>
> But when I read it with vtkXMLPolyDataReader, the insertlocation of the
> loaded polydata is 0.
>
> Can it be a problem if I wanted to use it some ways?
>
> My final goal is voxelizing vtkPolyData, which is a triangular mesh, to a
> binary volume( i.e., 1 for inside of the mesh and 0 for outside of the 
> mesh
> ).
>
> I have tried to use vtkVoxelizePolyData and vtkPolyDataToImageStencil,
>
> but I still haven’t got luck yet.
>
> Can this 0 insertlocation be a problem of voxelization?
>
> Thank you in advance for all replies.
>
> Sungmin

What is insertlocation?

David
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