On 02/11/2007, at 5:35 AM, Dave Rafkind wrote:
As far as I know (which is probably not too far) most tracking apps seem like they can get by doing 2D rectangular queries on a set of moving objects which can be represented by their bounding boxes and put in some kind of 2D index grid. Under what kinds of circumstances is this unacceptable?
I want to do things like mark out all instances of a rubbish bin, so it would be over a wide area with multiple dots rather than a bounding box containing a single volume. There's also other situations like tracking a breeze through a space (eg, gas distributions), where an algorithm is a better answer than a "here it is" point, line, square, or box.
There's also shapes that change over time, travel time areas that change according to traffic levels, and all sorts of marginal "defined by other definitions" cases. Since I'm interested in how ALL information can be represented, the puzzle is how to come up with something that can represent EVERYTHING.
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