[Qgis-developer] Suppress rendering of small features

Sandro Santilli strk at keybit.net
Thu Sep 12 04:03:15 PDT 2013


On Thu, Sep 12, 2013 at 08:51:43AM +0200, Andreas Neumann wrote:
> Hi,
> 
> As I understand, the feature to suppress small/large features would be
> optional.
> 
> Another interesting thing would be to simplify features when you zoom
> out. Maybe simplifying would be quicker than rendering thousands of
> unnecessary vertices. Optionally this could also be "outsourced" to the
> database - many databases support simplification on the db level. I
> don't know if it would really speed up things. One would have to test.

I've done this for mapnik and it worked pretty nicely:
http://blog.cartodb.com/post/20163722809/speeding-up-tiles-rendering

--strk;


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