Make algorithm work with float input?

[waldeland]

Hi! Great work!

Maybe it is possible to make algorithm work with float input by changing line 32 from:
for x in range(dx + 1):
to
for x in range(int(dx + 1)):
in bresenham.py.

[encukou]

Well, Bresenham's algorithm is famous for only dealing with ints, so you should only call it with ints :)

It would be possible to generalize to floats or fractional pixels, but that should have more sophisticated behavior – like Wu's algorithm, for example.
I'd expect that a line starting at x=1.98 should look almost like a line starting at x=2, rather than at x=1.

If you need simple truncation, cal int() or round() before calling bresenham().