source: trunk/docs/api/zoo-format.txt @ 171

.. _api-zoo-format:

ZOO.Format
==========

Base class for format reading/writing a variety of formats.

Properties      
----------

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

   * - NAME
     - DESCRIPTION
   * - :ref:`options <options>`
     - {Object} A reference to options passed to the constructor.
   * - :ref:`externalProjection <externalProjection>`
     - {ZOO.Projection} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes.
   * - :ref:`internalProjection <internalProjection>`
     - {ZOO.Projection} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes.
   * - :ref:`data <data>`
     - {Object} When keepData is true, this is the parsed string sent to read.
   * - :ref:`keepData <keepData>`
     - {Object} Maintain a reference (data) to the most recently read data.   
     
Functions       
---------

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

   * - NAME
     - DESCRIPTION
   * - :ref:`ZOO.Format <ZOO.Format>`
     - Instances of this class are not useful.
   * - :ref:`destroy <destroy>`
     - Clean up.
   * - :ref:`read <read>`
     - Read data from a string, and return an object whose type depends on the subclass.
   * - :ref:`data <data>`
     - {Object} When keepData is true, this is the parsed string sent to read.
   * - :ref:`write <write>`
     - Accept an object, and return a string.     
        
**Properties**

.. _options:   

options 
  {Object} A reference to options passed to the constructor.
  
.. _externalProjection:   

externalProjection      
  {ZOO.Projection} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes.

.. _internalProjection:   

internalProjection      
  {ZOO.Projection} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes.

.. _data:   

data    
  {Object} When keepData is true, this is the parsed string sent to read.

.. _keepData:   

keepData        
  {Object} Maintain a reference (data) to the most recently read data.

**Functions**

.. _ZOO.Format:   

ZOO.Format      
  Instances of this class are not useful.
  
.. _destroy:     
  
destroy 
  Clean up.

.. _read:     
  
read    
  Read data from a string, and return an object whose type depends on the subclass.

.. _write:     

write   
  Accept an object, and return a string.