[Dune] Add feature of looking for cells

[Christian Engwer]

On Wed, Nov 30, 2011 at 10:36:47AM +0000, Sergei Malashenko wrote:
> Thanks. I couldn't understand this interface, but now I have some conception. So I call GridView::indexSet() and I get the needed  IS array. Is it right?

it isn't an array. Have a look at the grid-howto, or the dune grid
paper for more details.

> --- On Wed, 30/11/11, Christian Engwer <christian.engwer at uni-muenster.de> wrote:
> 
> From: Christian Engwer <christian.engwer at uni-muenster.de>
> Subject: Re: [Dune] Add feature of looking for cells
> To: "Sergei Malashenko" <malashenko_sergei at yahoo.com>
> Cc: dune at dune-project.org
> Date: Wednesday, 30 November, 2011, 12:54
> 
> On Wed, Nov 30, 2011 at 05:21:23AM +0000, Sergei Malashenko wrote:
> > Thanks. I can't understand the second parameter in definition of the template (IS). What does it mean? Please give a short example of using this functionality.
> 
> this helper class is somewhat older... it doesn't use gridviews
> directly, but you have to pass the grid and the indexset (IS) of the
> gridview to the class.
> 
> christian
> 
> > 
> > --- On Wed, 30/11/11, Christian Engwer <christian.engwer at uni-muenster.de> wrote:
> > 
> > From: Christian Engwer <christian.engwer at uni-muenster.de>
> > Subject: Re: [Dune] Add feature of looking for cells
> > To: "Sergei Malashenko" <malashenko_sergei at yahoo.com>
> > Cc: dune at dune-project.org
> > Date: Wednesday, 30 November, 2011, 1:08
> > 
> > On Tue, Nov 29, 2011 at 09:25:53PM +0000, Sergei Malashenko wrote:
> > > Good day. I want to add feature of looking for cell which contains
> > some point. For this I am going to use KD-tree structure data. I see
> > that I can't return Entity and I have to return Iterator isn't it?
> > 
> > Please have a look at the HierarchicSearch in the dune-grid utilities
> > directory. It should do exactly what you are looking for.
> > 
> > And yes, you can't copy Entities and should return EntityPointers (the
> > dune version of a trivial iterator)
> > 
> > Christian
> > 
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> > 
> 
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