Vincent Borghi wrote:
> Hello,
>
> The stack of bars you suggest is indeed a very good
> visual representation that is OK for a lot of applications.
>     However, it seems inappropriate for other applications,
> where more than a few items are to be shown
> at a single location: imagine you have dozens of items at a location:
> in this case, one bar per item would make a too high stack.
>
> Thus: it seems there is not a unique representation that would
> be OK for all applications...
>
> PS: A variant of your suggestion could also be interesting: a variant
> where the individual bars have a variable thickness so that the stacks
> (the map markers) have always the same height...
We can also specify a maximum height of the stacks, say, 100 pixels, and 
then scale everything relative to that and eliminate the gaps between 
the bars.

David
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