[pooma-dev] Using CoordinateSystems

[Jeffrey Oldham]

On Tue, May 21, 2002 at 10:52:15AM +0200, Richard Guenther wrote:
> On Mon, 20 May 2002, Jeffrey Oldham wrote:
> 
> > On Thu, May 16, 2002 at 04:57:34PM +0200, Richard Guenther wrote:
> > >
> > > How am I supposed to use CoordinateSystems like f.i. Cylindrical?
> > > I see that the CoordinateSystems classes provide methods like
> > > volume and distance taking Regions/Vectors in coordinates in the
> > > respective coordinate system. But on the other hand a Mesh gets
> > > initialized with a Cartesian domain only(?). And the
> > > PositionTraits::Type_t of the Mesh always yields Cartesian components
> > > as there is no place to specify an alternate coordinate system?
> >
> > I do not think that full POOMA support for using different coordinate
> > systems was ever implemented.  (Will someone please correct me if I am
> > wrong?)
> >
> > docs/tut-07.html describes using meshes, centerings, geometries, and
> > fields, but the new Field implementation might have made some of this
> > out-of-date.
> 
> Ok, did you have specific ideas on how to integrate support for different
> coordinate systems? If yes, I'm happy to go the suggested way, else I need
> to come up with ideas myself.
> 
> Also, were there ideas on how to actually support something like AMR? From
> the current code I see that reduction operators for doing the neccesary
> interpolation do not exist.

I believe Julien Cummings or Scott Haney was the person most involved
in coordinate systems.  I do not know if there is a suggested way.

Jeffrey D. Oldham
oldham at codesourcery.com