[OpenLayers-Users] How to change the display coordinates

[fsalas]

Andreas , I test your solutions but openlayer

show the standard coordinates format ej. -79.456,21.2365

Why, the formatOutput don't affect ?

..
.
.

map.addControl(mp);

Regards,
salas.


----- Original Message ----- 
From: "Andreas Hocevar" <ahocevar at opengeo.org>
To: "users" <users at openlayers.org>
Sent: Friday, September 04, 2009 9:13 AM
Subject: Re: [OpenLayers-Users] How to change the display coordinates


Please provide a valid email address, and post follow-up questions to
the list.

You want me to show you how to calculate minutes and seconds?

Here are two functions from Mapbuilder  [1]:

  /**
   * Decimal to DMS conversion
   */
  convertDMS = function(coordinate, type) {
    var coords = new Array();

    abscoordinate = Math.abs(coordinate)
    coordinatedegrees = Math.floor(abscoordinate);

    coordinateminutes = (abscoordinate - coordinatedegrees)/(1/60);
    tempcoordinateminutes = coordinateminutes;
    coordinateminutes = Math.floor(coordinateminutes);
    coordinateseconds = (tempcoordinateminutes - coordinateminutes)/(1/60);
    coordinateseconds =  Math.round(coordinateseconds*10);
    coordinateseconds /= 10;

    if( coordinatedegrees < 10 )
      coordinatedegrees = "0" + coordinatedegrees;

    if( coordinateminutes < 10 )
      coordinateminutes = "0" + coordinateminutes;

    if( coordinateseconds < 10 )
      coordinateseconds = "0" + coordinateseconds;

    coords[0] = coordinatedegrees;
    coords[1] = coordinateminutes;
    coords[2] = coordinateseconds;
    coords[3] = this.getHemi(coordinate, type);

    return coords;
  }

  /**
   * Return the hemisphere abbreviation for this coordinate.
   */
  getHemi = function(coordinate, type) {
    var coordinatehemi = "";
    if (type == 'LAT') {
      if (coordinate >= 0) {
        coordinatehemi = "N";
      }
      else {
        coordinatehemi = "S";
      }
    }
    else if (type == 'LON') {
      if (coordinate >= 0) {
        coordinatehemi = "E";
      } else {
        coordinatehemi = "W";
      }
    }

    return coordinatehemi;
  }

Now this is what you could do:

var mp = new OpenLayers.Control.MousePosition({
   formatOutput: function(lonLat) {
       var markup = convertDMS(lonLat.lat, "LAT");
       markup += " " + convertDMS(lonLat.lon, "LON");
       return markup
   }
});

Regards,
Andreas.

[1]
http://svn.codehaus.org/mapbuilder/trunk/mapbuilder/lib/widget/CursorTrack.js

fsalas wrote:
> Thanks Andreas for your cooperations,
>
> but I have one doubt about How I use your function
>
> Is this possible send me one example about?
>
> Best Regards
>
> Salas
>
> ----- Original Message ----- From: "Andreas Hocevar"
> <ahocevar at opengeo.org>
> To: "fsalas" <fsalas at geocuba.cu>
> Cc: <users at openlayers.org>
> Sent: Friday, September 04, 2009 3:38 AM
> Subject: Re: [OpenLayers-Users] How to change the display coordinates
>
>
>> fsalas wrote:
>>> Hi , I need to change the display coordinates in degree minutes and
>>> second format example (NE 50 20´ 23´´ )
>>
>> Just configure your MousePosition control with a custom formatOutput
>> function:
>>
>> var mp = new OpenLayers.Control.MousePosition({
>>    formatOutput: function(lonLat) {
>>        var markup = "<your output markup here>";
>>        return markup
>>    }
>> });
>>
>> Regards,
>> Andreas.
>>
>> -- 
>> Andreas Hocevar
>> OpenGeo - http://opengeo.org/
>> Expert service straight from the developers.
>>
>>
>
>
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>


-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.

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___________________________________
Dirección de Comunicaciones
Grupo Empresarial GEOCUBA
Este mensaje esta libre de virus. 
Revisado por Kaspersky Antivirus
----------------------------------------------------------------------
Definition count:  2495798
Definition date:  9/4/2009
SecurityPlus version: 3.0.5