Valuable benchmark, thank You!
On aug. 23, 18:40, bratliff <[email protected]> wrote:
> On Aug 21, 12:24 am, Artem Sav <[email protected]> wrote:
>
> > It is absolutely not guaranteed that vector will be faster than tiles.
> > In fact, i think that in a big percentage of cases it will be slower -
> > drawing a metro map at 10 zoom for example will need lots of vectors.
>
> I agree.
>
> Images are cacheable. Canvases are not. Raster representations are
> binary. Vector representations are ASCII (XML or JSON).
>
> I have built a "Light Weight Poly" facility for V3 based on CANVAS.
>
> www.polyarc.us/polycluster
>
> To describe all US states except Alaska & Hawaii (110,000 vertices),
> requires 3.2 million bytes. It can be compressed to 625KB but it is
> still large. I am using US Census Department Cartographic Boundary
> Files without D-P point reduction. It is just simple state boundaries
> without detail (cities / roads / highways / landmarks). At deep zoom
> levels, the precision is inferior to map tiles.
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