[OpenLayers-Users] Formatting output text

[JK Chen]

Ya, I did that, but didn't work for me.  Here is my code,

  <script type='text/javascript' src='js/OpenLayers.js'></script>

  <script type="text/javascript">
  OpenLayers.LonLat.prototype.toString = function()
  {
    if (this.lat < 0)
    {
      var ns = "S";
      this.lat = Math.abs(this.lat);
    }
    else 
      var ns = "N";
    
    if (this.lon < 0)
    {
      var ew = "W";
      this.lon = Math.abs(this.lon);
    }
    else 
      var ew = "E";
   
    return (ns + "  " + this.lat.toFixed() + ", " + ew + " " + this.lon.toFixed());
  }
  </script>

-----Original Message-----
From: Bart van den Eijnden (OSGIS) [mailto:bartvde at osgis.nl] 
Sent: Thursday, August 18, 2011 12:06 AM
To: JK Chen
Cc: Bart van den Eijnden; Joel Leininger; openlayers-users at lists.osgeo.org
Subject: RE: [OpenLayers-Users] Formatting output text

In a script tag after the OpenLayers.js script tag, e.g.

<script type="text/javascript" src="OpenLayers.js"></script> <script type="text/javascript"> // code goes here </script>

Best regards,
Bart

>
> Where should the new code be inserted to?
>
> Thanks.
>
> JK
> From: openlayers-users-bounces at lists.osgeo.org
> [mailto:openlayers-users-bounces at lists.osgeo.org] On Behalf Of Bart 
> van den Eijnden
> Sent: Tuesday, August 16, 2011 11:28 AM
> To: Joel Leininger
> Cc: openlayers-users at lists.osgeo.org
> Subject: Re: [OpenLayers-Users] Formatting output text
>
> You could override the toString method of LonLat:
>
> OpenLayers.LonLat.prototype.toString = function() {
>     return ("N " + this.lat.toFixed() + ", E " + this.lon.toFixed()); 
> }
>
> Best regards,
> Bart
>
> --
> Bart van den Eijnden
> OSGIS - http://osgis.nl<http://opengeo.org/>
>
> On Aug 16, 2011, at 7:21 PM, Joel Leininger wrote:
>
>
> How do I go about reformatting the text output from a coordinate 
> variable?
>
> In other words, I have output from a mouse position which has been 
> transformed into different coordinate systems, and then gets displayed 
> on the screen.
>
> It now looks something like this:
>
> lon=414614.58552010887,lat=164066.82345258445
>
> In reality, the values are x and y coords in feet or meters, not 
> lonlat coords. I'd like them to look like this:
>
> N 164066, E 414614
>
> Note the truncation of the digits and switching of the x, y (which is 
> customary in my field). Not being a JS expert, I can't figure out how 
> to get at the variable to massage the format prior to display on the 
> screen.
>
> Here's the code leading up to the display (inside of a mousemove
> function):
>
> mousepos = map.getLonLatFromViewPortPx(e);
> var NAD83ft_values = mousepos.clone();   // done several times for
> different coord translations
>
> NAD83ft_values.transform(WGS84_google_mercator, NAD83ft_proj); 
> document.getElementById("NAD83feet").innerHTML = NAD83ft_values;
>
>
> It's unpacking NAD83ft_values that has me thrown. Any help?
>
> -J.
>
>
>
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