[OSM-newbies] projection question in Hawaii

Randy George rkgeorge at cadmaps.com
Wed Apr 1 22:21:15 BST 2009


Hi,

 

                I'm new to OSM and was experimenting with some track data in
Hilo HW. I ran into a problem with OSM as a base. It appears that the tracks
align properly with Google, VE, Yahoo, OpenAerial etc but not OSM?

http://www.web-demographics.com/Exacter/test.html This is a test that lets
me show different base maps under the tracks.

 

I'm using the OpenLayers code: 

var osm = new OpenLayers.Layer.OSM.Mapnik("OpenStreetMap",
{'sphericalMercator': true});

 

 I also checked against Google Earth by locating  LL -155.136552, 19.68534
on OSM and on GE. GE shows this point at the road intersection of Akolea Rd
and Kaumana Dr, while in OSM it's shifted off the road?

 

I assume I am doing something irregular. Are the OSM tiles sphericalmercator
EPSG:900913? Or some other EPSG?

 

thanks

randy

 

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