[matplotlib-devel] Overlap with bar

Hi,

When plotting a large amount of bars, like

>>> bar(arange(500), rand(500))

the bars seem to overlap and it produces a weird effect.

My feeling is that the culprit is the contour line around each rectangle,
who probably don't scale properly in this limit. In fact, the problem is
maybe not so much that the contour width doesn't scale, but that the contour
is drawn outside the rectangle.

I'd be glad to submit a patch, but I'd need some directions (where in the
code is the contour drawn ?)

Thanks for matplotlib !

David