[postgis-users] AsSVG()

Andreas Neumann neumann at karto.baug.ethz.ch
Thu Sep 9 23:13:04 PDT 2004


I would also strongly encourage the inclusion of the AsSVG() patch into 
the main source tree of Postgis. Being able to control the accuracy (nr 
of decimal places) is also very important for me. Thanks for providing 
the patch!

I personally use SVG and Postgis a lot in SVG mapping projects (see f.e. 
http://www.carto.net/geog234/lab7/index.svg - be careful with loading 
the contour lines (those are not well optimized for web-use))

I am currently in Japan at the SVG.Open, UBIMap and CSIS Symposium.

SVG for webmapping is very popular in Japan and just recently strongly 
recommended in Japan as a standard way to display spatial data on the 
web and mobile devices. Furthermore the two biggest mobile companies 
(NTT, KDDI) invest a lot in SVG for mobile devices.

http://www.svgopen.org/2004/proceedings_en.html (look for goSVG and LBS 
services) and www.jamaps.com

KDDI is strongly pushing SVG to also become a international standard for 
Location  based services.

Finally: SVG can also be used for digitizing geographic data and feed it 
into Postgis: http://www.carto.net/papers/svg/digi/ - that project is 
still immature and at an early stage, but I think the idea might be 

So, please include it in the Postgis distribution - it is very important!


btw: KDDI (second largest mobile provider in Japan) also uses Postgres 
for providing LBS data. Currently they don't use Postgis, since they 
only serve point-locations so far.

Andreas Neumann - Department of Cartography 
Swiss Federal Institute of Technology (ETH) 
ETH Hoenggerberg, CH-8093  Zurich, Switzerland 
Phone: ++41-1-633 3031, Fax: ++41-1-633 1153 
e-mail: neumann at karto.baug.ethz.ch 
www: http://www.karto.ethz.ch/neumann/ 
SVG.Open: http://www.svgopen.org/ 
Carto.net: http://www.carto.net/

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