Hi, I'm trying to cast a point in one projection into another, and I think I have some issues with OpenLayers.Projection. Below is html/javascript code I'm using and the rendered browser ouput. In this example, I'm trying to cast the point (184056.505, 4809728.250) in epsg:26915 to epgs:4326. My expectation is that point p, which is this point in epsg:26915, should display as something on the order of (-100,43), or something close to that range. However, as the output shows, the point is not changed. Can someone explain why?
Thanks, matt P.S. - Is there an error in the documentation for the constructor of OpenLayers.Projection (at: http://dev.openlayers.org/releases/OpenLayers-2.6/doc/apidocs/files/OpenLayers/Projection-js.html#OpenLayers.Projection.OpenLayers.Projection)? It says that the constructor takes an object to set parameters, but every example I see of the constructor is passing a string in the way I am setting it here. Am I not understanding the documentation conventions correctly, or is this not correctly or completely documented? === html/javascript code === <html xmlns="http://www.w3.org/1999/xhtml";> <head> <title>OpenLayers Example</title> <!-- <script src="http://www.openlayers.org/api/OpenLayers.js";></script> --> <script src="http://localhost/_common//OpenLayers-2.6/OpenLayers.js "></script> </head> <body> <pre> <script type="text/javascript"> var p = new OpenLayers.Geometry.Point(184056.505, 4809728.250); var proj_src = new OpenLayers.Projection("EPSG:26915"); var proj_tgt = new OpenLayers.Projection("EPSG:4326"); document.writeln(); document.writeln("Point p [before OpenLayers.Projection.transform] is: " + p); OpenLayers.Projection.transform(p,proj_src,proj_tgt); document.writeln("Point p [after OpenLayers.Projection.transform] is: " + p); document.writeln("proj_src is: " + proj_src); document.writeln(); document.writeln("prj_src walk of properties is:"); document.writeln("------------------------------"); for (prop in proj_src) { document.writeln(prop + " => " + proj_src[prop]); }; document.writeln("------------------------------"); </script> </pre> </body> </html> ======================================================================== === browser rendered output === Point p [before OpenLayers.Projection.transform] is: POINT(184056.505 4809728.25) Point p [after OpenLayers.Projection.transform] is: POINT(184056.505 4809728.25) proj_src is: EPSG:26915 prj_src walk of properties is: ------------------------------ projCode => EPSG:26915 proj => null initialize => function (projCode, options) { OpenLayers.Util.extend(this, options); this.projCode = projCode; if (window.Proj4js) { this.proj = new Proj4js.Proj(projCode); } } getCode => function () { return this.proj ? this.proj.srsCode : this.projCode; } getUnits => function () { return this.proj ? this.proj.units : null; } toString => function () { return this.getCode(); } equals => function (projection) { if (projection && projection.getCode) { return this.getCode() == projection.getCode(); } else { return false; } } destroy => function () { delete this.proj; delete this.projCode; } CLASS_NAME => OpenLayers.Projection ------------------------------ ========================================================================
_______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
