[Developers] Visualising bounding boxes

Ian Hawke hawke at aei.mpg.de
Sun Jan 25 09:04:28 CST 2004


On Sun, 25 Jan 2004, Erik Schnetter wrote:

> A "bounding box" denotes the extent of a grid, or in general a region
> in space.  Internally, Carpet handles bounding boxes a lot.  It would
> be nice if there was a good way of visualising bounding boxes (and
> sets thereof).  Examining the output of the
> "CarpetLib::output_bboxes=yes"  options by hand is difficult.
> 
> I am open for ideas, and especially for tools.  Visualising them by
> their outline becomes quickly too confusing.  It would also be
> necessary to compare sets of bounding boxes, e.g. denoting the
> interior and the boundaries, respectively, of different components.

One possibility for 2d slices is to use a height field based on the
refinement level coupled with different colours for the interior and
boundaries; this is the sort of approach used by Hern in 1 and 2d. I do
not have any ideas for full 3d.

Ian




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