On Jul 17, 2:39 am, bratliff <[email protected]> wrote:
> If the "off-tile" vertex
> is too distant from its "on-tile" neighbor, it causes strange behavior
> which is different in CANVAS & SVG.
>

I've done some experiments with SVG/VML and it seems to me that Opera
has the smallest range before a point is "too distant" from another,
with maximum coordinates of 32768.  The following example has a line
from (0,0) to (32769,32769) and it should extend beyond the bordering
box by 1 pixel, which it does on all browsers except Opera:

http://www.william-map.com/20100730/1/limits.htm

A similar test for IE produced a maximum coordinate of around 179000,
but in the first instance I'd implement SVG/VML clipping to ensure no
coordinates were greater than 32768.

However for CANVAS elements I guess they need to be much smaller for
performance, because they are a fully rendered bitmap and large CANVAS
elements would require a lot of memory.

...

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