[vtkusers] Surface - Volume intersection

Andrew J. P. Maclean a.maclean at cas.edu.au
Sun Jun 22 19:53:32 EDT 2003


As a first try, I would be inclined to create a new surface/volume by
probing one surface with the other using vtkCellLocator (try
IntersectWithLine() ) and keeping the sets of cells in both objects
where an intersection exists. This should correspond to the intersection
of the two surfaces.


___________________________________________

Andrew J. P. Maclean

Centre for Autonomous Systems
The Rose Street Building J04
The University of Sydney  2006  NSW
AUSTRALIA

Ph: +61 2 9351 3283
Fax: +61 2 9351 7474

URL: http://www.cas.edu.au/
___________________________________________


-----Original Message-----
From: vtkusers-admin at www.vtk.org [mailto:vtkusers-admin at www.vtk.org] On
Behalf Of Donald S Dunbar
Sent: Friday, 20 June 2003 04:45
To: vtkusers at public.kitware.com
Subject: Re: [vtkusers] Surface - Volume intersection

Okay, no bites on this one.  Can I at least get some indication from 
someone about whether this is within the realm of possible VTK tricks?  
Are there any classes for extracting the intersection between volumes 
and surfaces?

Many thanks,
D. Dunbar

On Monday, June 16, 2003, at 04:58 PM, Donald S Dunbar wrote:

> I have an irregular surface in 3D (an open pit mine) and a volume that

> intersects this surface (an ore body).  I would like to calculate the 
> area of the surface corresponding to the intersection.  The volume is 
> also irregular, hence the intersection may consist of multiple patches

> of the surface.  Can this be done using VTK?  How?
>
> Thanks,
>
> Donald S. Dunbar, Ph.D.
> Senior Physical Oceanographer
> Lorax Environmental Consultants Ltd.
> 1108 Mainland Street
> Vancouver, BC  V6B 5L1
>
> Ph: 604-688-7173
> Fx: 604-688-7175
>
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