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GeoCoordinate Class Reference
[Standard Node Types]

#include <geocoordinate.h>

Inherits Node.

Inheritance diagram for GeoCoordinate:

Inheritance graph
[legend]
List of all members.

Public Member Functions

 GeoCoordinate (const char *name="")
virtual ~GeoCoordinate ()
virtual unsigned int nbFields () const
virtual FieldHandle field (const std::string &n)
virtual FieldHandle field (const unsigned int i)
virtual bool isSetToDefaultValue (const unsigned int i) const
virtual unsigned int nbEventsIn () const
virtual EventInHandle eventIn (const std::string &n)
virtual EventInHandle eventIn (const unsigned int i)
virtual unsigned int nbEventsOut () const
virtual EventOutHandle eventOut (const std::string &n)
virtual EventOutHandle eventOut (const unsigned int i)
const char * typeName () const
virtual Node * duplicate () const
virtual Node * duplicate (std::map< const Node *, Node * > &) const

Public Attributes

Fields
A property or attribute of a node. Each node type has a fixed set of fields. Fields may contain various kinds of data and one or many values. Each field has a default value.

SFNode geoOrigin
MFString geoSystem
MFString point

Detailed Description

Here is the documentation for this node type, from the ISO standard.

6.23 GeoCoordinate

The GeoCoordinate node specifies a list of coordinates in a spatial reference frame. It is used in the coord field of vertex-based geometry nodes including IndexedFaceSet, IndexedLineSet, and PointSet. This is an optionally-implemented VRML node that constitutes part of the VRML support for geospatial applications, see 4.15, Geospatial application support.

The geoOrigin field is used to specify a local coordinate frame for extended precision as described in 4.15.5 Dealing with high-precision coordinates.

The geoSystem field is used to define the spatial reference frame and is described in 4.15.3, Encoding a spatial reference frame.

The point string array is used to contain the actual geospatial coordinates and should be provided in a format consistent with that specified for the particular geoSystem (see 4.15.4 Encoding geospatial coordinates. The geospatial coordinates are transparently transformed into a geocentric, curved-earth representation. For example, this would allow a geographer to create a VRML world where they specify all coordinates in terms of latitude, longitude, and elevation.

Constructor & Destructor Documentation

GeoCoordinate (  const char *  name = ""  ) 
 

Construct a node with all its fields set to default value, which is equivalent to the code below: 

    		
  







  

    
      

        

          ~GeoCoordinate           
          ( 
                    
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Virtual destructor, does nothing     

  




Member Function Documentation





  

    
      

        

          wrl::Node * duplicate           
          ( 
          std::map< const Node *, Node * > & 
                    
           ) 
           const [virtual]
        

      

    		
  





  

    
       
    
    






Implements Node.    

  







  

    
      

        

          wrl::Node * duplicate           
          ( 
                    
           ) 
           const [virtual]
        

      

    		
  





  

    
       
    
    



Returns a deep copy of this node, that is a fully independant node with all children (if any) also copied. This is mainly useful for instanciating protos. 


Implements Node.    

  







  

    
      

        

          wrl::Node::EventInHandle eventIn           
          ( 
          const unsigned int 
           i          
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Return a handle on the i th event in of the node or a "unknown" typed handle if there is no such node. emarks This class has no eventIn. This function is useful, with nbEventsIn() if you want to traverse all events in of a Node. 


Implements Node.    

  







  

    
      

        

          wrl::Node::EventInHandle eventIn           
          ( 
          const std::string & 
           n          
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Return a handle on the event in named n of the node or a "unknown" typed handle if there is no such event. Valid names are: 


Implements Node.    

  







  

    
      

        

          wrl::Node::EventOutHandle eventOut           
          ( 
          const unsigned int 
           i          
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Return a handle on the i th event out of the node or a "unknown" typed handle if there is no such node. Here is how i is related to fields: This function is useful, with nbEventsOut() if you want to traverse all events in of a Node. 


Implements Node.    

  







  

    
      

        

          wrl::Node::EventOutHandle eventOut           
          ( 
          const std::string & 
           n          
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Return a handle on the event out named n of the node or a "unknown" typed handle if there is no such event. Valid names are: 


Implements Node.    

  







  

    
      

        

          wrl::Node::FieldHandle field           
          ( 
          const unsigned int 
           n          
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Return a handle on the i th field of the node or a "unknown" typed handle if there is no such node. Here is how i is related to fields:
    

  • 0 : geoOrigin
  • 1 : geoSystem
  • 2 : point This function is useful, with nbFields() if you want to traverse all fields of a Node. 




Implements Node.    

  







  

    
      

        

          wrl::Node::FieldHandle field           
          ( 
          const std::string & 
           n          
           ) 
           [virtual]
        

      

    		
  





  

    
       
    
    



Return a handle on the field named n of the node or a "unknown" typed handle if there is no such field. Valid names are:
    

  • geoOrigin
  • geoSystem
  • point 




Implements Node.    

  







  

    
      

        

          bool isSetToDefaultValue           
          ( 
          const unsigned int 
           i          
           ) 
           const [virtual]
        

      

    		
  





  

    
       
    
    






Implements Node.    

  







  

    
      

        

          unsigned int nbEventsIn           
          ( 
                    
           ) 
           const [inline, virtual]
        

      

    		
  





  

    
       
    
    



Returns the number of events in for this node type. 


Implements Node.    

  







  

    
      

        

          unsigned int nbEventsOut           
          ( 
                    
           ) 
           const [inline, virtual]
        

      

    		
  





  

    
       
    
    



Returns the number of events out for this node type. 


Implements Node.    

  







  

    
      

        

          unsigned int nbFields           
          ( 
                    
           ) 
           const [inline, virtual]
        

      

    		
  





  

    
       
    
    



Returns the number of fields (exposed or not) for this node type. 


Implements Node.    

  







  

    
      

        

          const char * typeName           
          ( 
                    
           ) 
           const [inline, virtual]
        

      

    		
  





  

    
       
    
    



Returns "GeoCoordinate". Useful for printing. 


Implements Node.    

  




Member Data Documentation





  

    
      

        

          SFNode geoOrigin          
        

      

    		
  





  

    
       
    
    



See Detailed Description for meaning of this field. Default value is set to SFNode default value     

  







  

    
      

        

          MFString geoSystem          
        

      

    		
  





  

    
       
    
    



See Detailed Description for meaning of this field. Default value is set to 
    		
  







  

    
      

        

          MFString point          
        

      

    		
  





  

    
       
    
    



See Detailed Description for meaning of this field. Default value is set to MFString default value     

  



  

  

    

      
        
          
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