[OSM-dev] Re: Ways on the new renderer... maybe usable after all!

SteveC steve at asklater.com
Mon Jul 3 23:40:25 BST 2006


Yeah will deploy when the new db code is complete (few days hopefully)

* @ 29/06/06 11:09:51 PM nick at hogweed.org wrote:
> Hello Steve (and all on dev),
> 
> Just occurred to me tonight that when I discounted rendering ways with  the 
> new renderer due to speed issues with the SQL, I was using my original PHP 
> code. I realised I hadn't tried it in Ruby... up until tonight.
> 
> So I've tweaked renderer.rb to fetch ways and apply way tags to the 
> constituent segments. While there is a slight slowdown, it's not too bad. For 
> instance, the renderer will render the way-rich tile with bbox 
> -0.75,51.02,-0.7,51.07 in 2.6 seconds if ways aren't fetched from the 
> database, against 3.7 if ways are fetched and rendered. Other bboxes give 
> similar time ratios, typically 3:4 no ways:ways.
> 
> Even though there's a slight speed hit, I'm wondering whether we should use my 
> latest version (with ways enabled) as practically everyone is creating and 
> tagging ways rather than segments now so the rendered map will be very much 
> more full-featured with roads and other ways rendered correctly.
> 
> Steve - the new version of the script is 
> at /var/www/nick/ruby/renderer.rb.WAYS when you have a chance to test :-)
> 
> Have also implemented Tom's IE fix in index.rhtml.
> 
> Nick

have fun,

SteveC steve at asklater.com http://www.asklater.com/steve/




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