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#include <geoorigin.h>
Inherits Node.
Inheritance diagram for GeoOrigin:
Public Member Functions | |
GeoOrigin (const char *name="") | |
virtual | ~GeoOrigin () |
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 | |
Exposed Fields | |
A field that is capable of receiving events via an eventIn to change its value(s), and generating events via an eventOut when its value(s) change. | |
MFString | geoSystem |
SFString | geoCoords |
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. | |
SFBool | rotateYUp |
Events In | |
EventIn< MFString > | set_geoSystem |
EventIn< SFString > | set_geoCoords |
Events Out | |
EventOut< MFString > | geoSystem_changed |
EventOut< SFString > | geoCoords_changed |
The GeoOrigin node defines an absolute geospatial location and an implicit local coordinate frame against which geometry is referenced. This node is used to translate from geospatial coordinates into a local Cartesian coordinate system which can be managed by the VRML browser.
The geoSystem field is used to define the spatial reference frame and is described in 4.15.3, Encoding a spatial reference frame.
The geoCoords field is used to specify the origin of the local coordinate frame and should be provided in a format consistent with that specified for the particular geoSystem (see 4.15.4, Encoding geospatial coordinates.
The rotateYUp field is used to specify whether all coordinates of any nodes that use this GeoOrigin should be rotated such that the up direction is aligned with the VRML Y axis. The default behaviour is to not perform this operation, which means that the local up direction will depend upon the location of the GeoOrigin with respect to the planet surface. The principal reason for performing the rotation is to ensure that standard VRML navigation modes such as FLY and WALK, which assume that +Y is up, will function correctly. Note that specifying rotateYUp to be TRUE may incur an extra computational overhead in order to perform the rotation for each point.
Since multiple local coordinate systems cannot be defined in a single scene, it is recommended that only one GeoOrigin node be defined within a single VRML world. Then all subsequent geoOrigin fields can USE this GeoOrigin node.
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Construct a node with all its fields set to default value, which is equivalent to the code below: |
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Virtual destructor, does nothing |
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Implements Node. |
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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. |
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Return a handle on the Implements Node. |
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Return a handle on the event in named
Implements Node. |
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Return a handle on the
Implements Node. |
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Return a handle on the event out named
Implements Node. |
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Return a handle on the
Implements Node. |
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Return a handle on the field named
Implements Node. |
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Implements Node. |
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Returns the number of events in for this node type. Implements Node. |
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Returns the number of events out for this node type. Implements Node. |
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Returns the number of fields (exposed or not) for this node type. Implements Node. |
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Returns Implements Node. |
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See Detailed Description for meaning of this field. Default value is set to geoCoords = string(""); |
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Changed event associated to exposedField geoCoords |
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See Detailed Description for meaning of this field. Default value is set to |
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Changed event associated to exposedField geoSystem |
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See Detailed Description for meaning of this field. Default value is set to rotateYUp = false; |
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Set event associated to exposedField geoCoords |
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Set event associated to exposedField geoSystem |
Generated on 24 Feb 2005 with version 1.3.9.1. |