Openlayers.Bounds().transform() not doing transform

Michael Adair | 1 Nov 2011 15:29

Re: Openlayers.Bounds().transform() not doing transform

Did you include the definition for EPSG:26915? Otherwise it will try to look it up via a proxy.

Proj4js.defs["EPSG:26915"] = "+proj=utm +zone=15 +ellps=GRS80 +datum=NAD83 +units=m +no_defs"; Mike

On 31/10/2011 10:41 PM, Matthew Pettis wrote:

I am trying to do a coordinate transform of bounds in Openlayers, and have tried the following, which, for both console.log() statements, gives me the same bounds in both cases (but I expect the second statement to give me bounds in EPGS:4326):

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<title>Bounds Example</title>

<script src="/OpenLayers-2.10/OpenLayers.js"></script>

<script type="text/javascript">

function init(){

var fromProjection = new OpenLayers.Projection("EPSG:26915");

var toProjection = new OpenLayers.Projection("EPSG:4326");

var extent = new OpenLayers.Bounds(189775.379950,4816289.746171,761662.354535,5472414.143295);

console.log(extent);

console.log(extent.transform(fromProjection,toProjection));

}

</script>

</head>

<body onload="init()">

</body>

</html>

In both console.log() statements, I get the following object (c&p from Chrome javascript debugger):

Class

bottom: 4816289.746171

centerLonLat: null

left: 189775.37995

right: 761662.354535

top: 5472414.143295

__proto__: Object

I read the documentation for proj4js with openlayers here, and it tells me:

OpenLayers integrates with Proj4js if the library is available. This will make using it a bit easier. Having it in the same folder as OpenLayers.js will make it available.

Which I did via a symlink:

matt <at> xxxxxxxx:/var/www/xxxxx$ ll /var/www/OpenLayers-2.10/

total 1008

drwxr-xr-x 13 matt matt 4096 Nov 1 01:49 .

drwxrwxrwx 30 root root 4096 Nov 1 01:43 ..

-rw-r--r-- 1 matt matt 945828 Sep 9 2010 OpenLayers.js

...

lrwxrwxrwx 1 matt matt 31 Nov 1 01:49 proj4js.js -> /var/www/proj4js/lib/proj4js.js

...

Can someone help me diagnose what I'm doing wrong here?

Thanks, Matt

PS -- I've crossposted from stackoverflow, as I don't know which place is getting more activity -- http://stackoverflow.com/questions/7961872/openlayers-bounds-transform-not-doing-transform

--
Do not seek to follow in the footsteps of the wise men of old. Seek what they sought.

- Matsuo Munefusa (”Basho”)

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