Comments on: More on Mapnik WMS http://www.perrygeo.net/wordpress/?p=50 Matt Perry's random adventures with geospatial technology and other tangentially related topics Mon, 06 Sep 2010 17:49:38 +0000 http://wordpress.org/?v=2.3.3 By: Robert Coup http://www.perrygeo.net/wordpress/?p=50#comment-2006 Robert Coup Sat, 02 Sep 2006 00:50:48 +0000 http://www.perrygeo.net/wordpress/?p=50#comment-2006 Chris, the filesize difference is due to the mapnik output being a 24bit PNG, while the mapserver output is an 8bit PNG. Reducing the mapnik output to 8bit results in a filesize of 15.2KB with no appreciable loss of quality (in that example). It's still 2 1/2 times the size of the mapserver image though... Chris, the filesize difference is due to the mapnik output being a 24bit PNG, while the mapserver output is an 8bit PNG. Reducing the mapnik output to 8bit results in a filesize of 15.2KB with no appreciable loss of quality (in that example). It’s still 2 1/2 times the size of the mapserver image though…

]]> By: Sean Gillies http://www.perrygeo.net/wordpress/?p=50#comment-232 Sean Gillies Fri, 19 May 2006 01:52:49 +0000 http://www.perrygeo.net/wordpress/?p=50#comment-232 Matt, you should check out the timeit module for benchmarking. There's an example of it buried in mapserver/mapscript/python/tests. Grep is your friend. Also, force RGB PNGs from MapServer to even out the cost of transporting bytes through urllib. This is another encouraging report; Artem has been telling me for a long time that AGG is no slower than GD. Matt, you should check out the timeit module for benchmarking. There’s an example of it buried in mapserver/mapscript/python/tests. Grep is your friend. Also, force RGB PNGs from MapServer to even out the cost of transporting bytes through urllib. This is another encouraging report; Artem has been telling me for a long time that AGG is no slower than GD.

]]> By: Chris Tweedie http://www.perrygeo.net/wordpress/?p=50#comment-231 Chris Tweedie Fri, 19 May 2006 00:42:37 +0000 http://www.perrygeo.net/wordpress/?p=50#comment-231 Hi Perry, I have been putting off trying out mapnik aswel, the library definately looks good. While speed seems to be relatively good in comparison to mapserver, i'm not sure how many people would choose mapnik in a production environment (even with all the bells and whistles of mapserver). Looking at your comparison output images, compare the file size mapnik (59kb) vs mapserver (5.9kb). My question ... is the nice carto output worth the 10x size increase? In some situations i'd say yes, but overall probably not. If only mapnik/agg could be integrated with mapserver just as another outputformat then we'd have the best of both worlds :) Hi Perry,

I have been putting off trying out mapnik aswel, the library definately looks good.

While speed seems to be relatively good in comparison to mapserver, i’m not sure how many people would choose mapnik in a production environment (even with all the bells and whistles of mapserver).

Looking at your comparison output images, compare the file size mapnik (59kb) vs mapserver (5.9kb). My question … is the nice carto output worth the 10x size increase? In some situations i’d say yes, but overall probably not.

If only mapnik/agg could be integrated with mapserver just as another outputformat then we’d have the best of both worlds :)

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