[MetaCRS] proj4js EPSG3857

[Dave Potts]

Hi

Thanks for the comments so far but
I was actual refer to this  block of code in proj4js.js in the function
transform

There is a reference to 900913 on line 75


transform: function(source, dest, point) {
  68
  69         if (!source.readyToUse || !dest.readyToUse) {
  70             this.reportError("Proj4js initialization for
"+source.srsCode+" not yet complete");
  71             return point;
  72         }
  73
  74         // Workaround for Spherical Mercator
  75         if (((source.srsProjNumber =="900913" )&& dest.datumCode !=
"WGS84") ||
  76             ((dest.srsProjNumber == "900913" )&& source.datumCode !=
"WGS84")) {
  77             var wgs84 = Proj4js.WGS84;
  78             this.transform(source, wgs84, point);
  79             source = wgs84;
  80         }

Does this code need updating ?

Dave.

>
> On Oct 20, 2011, at 10:57 AM, ext Michael Adair wrote:
>
>> Proj4js supports both the EPSG:3785 code and the 900913 code -
>> EPSG:900913 is defined as an alias to EPSG:3785.  I think the official
>> code you want is 3785, not 3857.
>
> 3785 was retired in favor of 3857 a couple years ago.
>
> -- Chris
>
>> Mike
>>
>> On 20/10/2011 10:39 AM, Dave Potts wrote:
>>> Hi list
>>>
>>> Does the proj4s library support the SRS 3857?
>>>
>>> I was looking at the source code proj4js.js (version 1.02) and
>>> discovered
>>> an hard code references to SRS 900913.  I thought that the code 3857
>>> was
>>> the replacment value for 90013.
>>>
>>> Is this correct ?
>>> Are there any places to remove support for 900913 ?
>>> Does proj4js support EPSG:3857 in some other way?
>>>
>>> regards
>>>
>>>
>>>
>>> Dave.
>>>
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