Thanks for the suggestions, I couldn't agree more for static rendering. However 
this approach has some massive draw backs in terms of performance. Any 
suggestions in this region?

Li.

On 01/11/2012, at 5:13 PM, Daniel O'Connor wrote:

> 
> What do you guys think?
> 
> It's non trivial to do it this way, but:
> Define a relationship between zoom level and number of ways/nodes within the 
> bounding box
> Sort the ways in a weighted fashion - roads first, land boundaries second, etc
> Zoom level max, with 10 nodes to render: well, that should likely render 
> everything
> Zoom level max - 1 with 1 billion nodes to render - roads only
> To actually set up the balance between zoom and what to render would be hard, 
> but I think that's a better approach than render hints. Alternatively, after 
> implementing it, you could add a 'render weighting/interest' attribute to a 
> lot of ways, which would be like a render hint but also suitable for other 
> purposes - ie: routing or search.
> 
> 

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