[MetaCRS] Proj4js dynamic CRS lookup
Mike Adair
madair at dmsolutions.ca
Mon Nov 1 13:48:13 EDT 2010
Jon,
Have a look at the file proj4js/test/runtests.js - in there you'll see a
way to set a timer that checks the 'readyToUse' flag in a timer as one
way to wait until the projection definition is ready. You may also be
able to modify the 'defsLoaded' function to call a user defined
callback, that method is called by the onload handler for the script tag
that loads the definition.
Mike
On 11/1/2010 1:34 PM, Jon Britton wrote:
> Hi,
>
> I'm trying to use proj4js in my project and will need to project to
> various CRSs. The projection codes are submitted by the user, so I
> have no way of knowing what CRSs will be used. I've looked at the
> user guide and it says that proj4js can dynamically look up CRS info
> at run-time, but I can't figure out how to set this up. When I try
> and carry out a projection, I just get the original values back...
>
> Any help would be appreciated,
>
> Jon
>
>
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--
Michael Adair
Senior Software Architect
DM Solutions Group Inc.
Office: (613) 565-5056 x26
madair at dmsolutions.ca
http://www.dmsolutions.ca
http://research.dmsolutions.ca
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