source: trunk/docs/api/zoo-projection.txt @ 176

.. _api-zoo-projection:

ZOO.Projection
==============

Class for coordinate transforms between coordinate systems.

Properties      
----------

.. list-table::
   :widths: 30 50
   :header-rows: 1

   * - NAME
     - DESCRIPTION
   * - :ref:`proj <proj>`
     - {Number} Proj4js.Proj instance.
   * - :ref:`projCode <projCode>`
     - {String} 
       
Functions       
---------

.. list-table::
   :widths: 12 50
   :header-rows: 1

   * - NAME
     - DESCRIPTION
   * - :ref:`ZOO.Projection <ZOO.Projection>`
     - This class offers several methods for interacting with a wrapped zoo-pro4js projection object.
   * - :ref:`getCode <getCode>`
     - Get the string SRS code.
   * - :ref:`getUnits <getUnits>`
     - Get the units string for the projection -- returns null if zoo-proj4js is not available.
   * - :ref:`toString <toString>`
     - Convert projection to string (getCode wrapper).
   * - :ref:`equals <equals>`
     - Test equality of two projection instances.   
   * - :ref:`destroy <destroy>`
     - Destroy projection object.
   * - :ref:`transform <transform>`
     - Transform a point coordinate from one projection to another.       

**Properties**

.. _proj:   

proj    
  {Object} Proj4js.Proj instance.
  
.. _projCode:     
  
projCode        
  {String}

**Functions**

.. _ZOO.Projection:     

ZOO.Projection  
  This class offers several methods for interacting with a wrapped zoo-pro4js projection object.

.. _getCode:     

getCode 
  Get the string SRS code.
  
.. _getUnits:       

getUnits        
  Get the units string for the projection -- returns null if zoo-proj4js is not available.

.. _toString:       

toString        
  Convert projection to string (getCode wrapper).
  
.. _equals:         
  
equals  
  Test equality of two projection instances.
  
.. _destroy:           
  
destroy 
  Destroy projection object.
  
.. _transform:             
  
transform       
  Transform a point coordinate from one projection to another.