XdkWrl: GeoCoordinate Class Reference

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# GeoCoordinate Class Reference
[Standard Node Types]

`#include <geocoordinate.h>`

Inherits Node.

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 (unsigned int i)
virtual bool | isSetToDefaultValue (unsigned int i) const
virtual unsigned int | nbEventsIn () const
virtual EventInHandle | eventIn (const std::string &n)
virtual EventInHandle | eventIn (unsigned int i)
virtual unsigned int | nbEventsOut () const
virtual EventOutHandle | eventOut (const std::string &n)
virtual EventOutHandle | eventOut (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

unsigned int nbFields | ( |  | ) | const`[inline, virtual]`

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

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.

wrl::Node::FieldHandle field | ( | 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.

bool isSetToDefaultValue | ( | 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.

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::EventInHandle eventIn | ( | 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.

unsigned int nbEventsOut | ( |  | ) | const`[inline, virtual]`

Returns the number of events out for this node type.

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::EventOutHandle eventOut | ( | 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.

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

Returns `"GeoCoordinate"`. Useful for printing.

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.

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

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

Generated on 5 Jan 2007 with version 1.5.1. |