Sorry, my mistake: I misunderstood what you were trying to do. As Mike says: the compressed script should have the specific definitions for the different projection types. As an aside, I've just implemented the "gnom" projection which I shall be checking in soon (probably later tonight).
Richard On Thu, Nov 19, 2009 at 1:28 PM, Dash <jim...@co.clackamas.or.us> wrote: > > Thanks for the quick response Richard, but I don't see how I'm > re-projecting > raster layers when I'm explicitly specifying coordinates to transform? I'm > only using the transformation on coordinates, not the base layers (Google). > > Ahhh, I just figured it out. Here is what I had to do in-order to > transform > coordinates from EPSG:2913 (Stateplane) to EPSG:900913. Within the head > tag > I added 2 projCodes (lcc.js and merc.js). > > <script src="./proj4js/lib/proj4js.js"></script> > <script src="./proj4js/lib/proj4js-compressed.js"></script> > <script src="./proj4js/lib/defs/EPSG2913.js"></script> > <script src="./proj4js/lib/projCode/lcc.js"></script> > <script src="./proj4js/lib/projCode/merc.js"></script> > > Also, here is my transformation: > > var srcProj = new OpenLayers.Projection("EPSG:2913"); > var destProj = new OpenLayers.Projection("EPSG:900913"); > var point = new OpenLayers.LonLat(7662464.286, 614886.646); > point.transform(srcProj, map.getProjectionObject()); > > My input coordinates were: 7662464.286, 614886.646 > Transformed coordinates: -13647631.260266263, 5674262.881180859 > > Works great, at least for now. > > > Richard Marsden wrote: > > > > It looks like you are trying to re-project Google raster layers? > > > > I thought OpenLayers was only capable of re-projecting vector layers? > > > > For example, the following article uses OpenLayers (& Proj4JS) to > > re-project > > KML and GeoRSS data (geographic coords, WGS84) to a number of different > > projections (Mollweide, Behrmann, etc): > > > > > http://www.geowebguru.com/articles/209-how-to-create-an-online-map-with-a-non-mercator-projection-part-2 > > > > > > Richard Marsden > > Winwaed Software Technology LLC > > http://www.winwaed.com > > http://www.mapping-tools.com > > http://www.geowebguruc.om > > > > > > On Thu, Nov 19, 2009 at 12:12 PM, Dash <jim...@co.clackamas.or.us> > wrote: > > > >> > >> Aloha Thursday folks, > >> > >> I am banging my head against the problem for the last several hours. I > >> have > >> went through numerous examples and utilized OpenLayers tutorial on > >> reprojecting points without any success. I've even used the Proj4js > Wiki > >> without any help. Could some please shed some light on what I am doing > >> wrong? > >> > >> Here is the scenario. I am trying to transform some coordinates from > >> EPSG:2913 to EPSG:900913. I've also tried a simplified version using > >> EPSG:4326 -> EPSG:900913. Anyway, the transform is not happening for > >> some > >> odd reason. I do have the proj4js library within my code and I have > >> added > >> EPSG definition to my /proj4js/lib/def directory. I am checking if the > >> projection by using the getUnits function of the projection class within > >> OpenLayers. If the units come back null, then the proj4js library is > >> unavailable. Why is this? I'm so confused. This should be rather > >> straight > >> forward. Anyway, here is some of my code. Hopefully someone can help > me > >> out. Thanks. > >> > >> <head> > >> <script src="http://openlayers.org/dev/lib/OpenLayers.js" > >> type="text/javascript"></script> > >> <script src="./proj4js/lib/proj4js.js"></script> > >> <script src="proj4js/lib/defs/EPSG2913.js"></script> > >> <script src="proj4js/lib/defs/EPSG900913.js"></script> > >> <script src="proj4js/lib/defs/EPSG4326.js"></script> > >> </head> > >> > >> <script type="text/javascript"> > >> var map; > >> function init(){ > >> var options = { > >> //projection: new OpenLayers.Projection("EPSG:900913"), > >> // Map projection > >> projection: "EPSG:900913", > >> displayProjection: new > OpenLayers.Projection("EPSG:4326"), > >> // Display > >> projection > >> units: "m", > >> numZoomLevels: 5, > >> maxResolution: 156543.0339, > >> maxExtent: new OpenLayers.Bounds(-13698618.8209569, > >> 5595988.4768255, > >> -13521569.8682338, 5701506.49106001) > >> }; > >> > >> // Initiate Map Controls > >> map.addControl(new OpenLayers.Control.LayerSwitcher()); > >> map.addControl(new OpenLayers.Control.MousePosition()); > >> > >> // Create Google Mercator Layers > >> var gmap = new OpenLayers.Layer.Google("Google > >> Streets",{'sphericalMercator': true, numZoomLevels: 20}); > >> var gphy = new OpenLayers.Layer.Google("Google Physical", > >> {'sphericalMercator': true, type: G_PHYSICAL_MAP, numZoomLevels: 20}); > >> var gsat = new OpenLayers.Layer.Google("Google > >> Satellite",{'sphericalMercator': true, type: G_SATELLITE_MAP, > >> numZoomLevels: > >> 20}); > >> var ghyb = new OpenLayers.Layer.Google("Google > >> Hybrid",{'sphericalMercator': true, type: G_HYBRID_MAP, numZoomLevels: > >> 20}); > >> > >> map.addLayers([gmap, gphy, gsat, ghyb]); > >> > >> var srcProj = new OpenLayers.Projection("EPSG:4326"); > >> alert(srcProj.getUnits()); > >> var point = new OpenLayers.LonLat(-71, 42); > >> point.transform(srcProj, map.getProjectionObject()); > >> > >> if(point.transformed) > >> { > >> alert("point already transformed"); > >> } > >> > >> Proj4js.transform(srcProj, map.getProjectionObject(), point); > >> > >> Any suggestions would be greatly appreciated. THANKS... > >> -- > >> View this message in context: > >> http://n2.nabble.com/transform-help-please-tp4033462p4033462.html > >> Sent from the OpenLayers Users mailing list archive at Nabble.com. > >> _______________________________________________ > >> Users mailing list > >> Users@openlayers.org > >> http://openlayers.org/mailman/listinfo/users > >> > > > > _______________________________________________ > > Users mailing list > > Users@openlayers.org > > http://openlayers.org/mailman/listinfo/users > > > > > > -- > View this message in context: > http://n2.nabble.com/transform-help-please-tp4033462p4033873.html > Sent from the OpenLayers Users mailing list archive at Nabble.com. > _______________________________________________ > Users mailing list > Users@openlayers.org > http://openlayers.org/mailman/listinfo/users >
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