Changing colors for the same object

[KB]

Watch this: http://www.gisdro.nl/BODEMKWALITEIT/index_uitdelucht.php

3 layers with the same polygons in different colors. Each object is
created 3 times.

Is it more efficient to create each object 3 times with different
colors or should I create each object once and change the color of
each object (from an array of 3 colors?) when changing the layer?

[Enoch Lau (Google Employee)]

If these polygons are exactly the same, it's more efficient to just change the color of an existing polygon than creating new polygons with the same path but a different color. But unless you have a very large number of polygons, it shouldn't really make any practical difference because polygon rendering in v3 is pretty fast.

Enoch

[KB]

Thanks for the answer. It is not a large number of polygons, but many nodes each polygon. I will try to change colors to see the difference in performance (not done yet).