XdkWrl: IndexedLineSet Class Reference

6.35 IndexedLineSet

The IndexedLineSet node represents a 3D geometry formed by constructing polylines from 3D vertices specified in the coord field. IndexedLineSet uses the indices in its coordIndex field to specify the polylines by connecting vertices from the coord field. An index of "-1" indicates that the current polyline has ended and the next one begins. The last polyline may be (but does not have to be) followed by a "-1". IndexedLineSet is specified in the local coordinate system and is affected by the transformations of its ancestors.

The coord field specifies the 3D vertices of the line set and contains a Coordinate node.

Lines are not lit, are not texture-mapped, and do not participate in collision detection. The width of lines is implementation dependent and each line segment is solid (i.e., not dashed).

If the color field is not NULL, it shall contain a Color node. The colours are applied to the line(s) as follows:

If colorPerVertex is FALSE:
1. If the colorIndex field is not empty, one colour is used for each polyline of the IndexedLineSet. There shall be at least as many indices in the colorIndex field as there are polylines in the IndexedLineSet. If the greatest index in the colorIndex field is N, there shall be N+1 colours in the Color node. The colorIndex field shall not contain any negative entries.
2. If the colorIndex field is empty, the colours from the Color node are applied to each polyline of the IndexedLineSet in order. There shall be at least as many colours in the Color node as there are polylines.
If colorPerVertex is TRUE:
1. If the colorIndex field is not empty, colours are applied to each vertex of the IndexedLineSet in exactly the same manner that the coordIndex field is used to supply coordinates for each vertex from the Coordinate or GeoCoordinate node. The colorIndex field shall contain at least as many indices as the coordIndex field and shall contain end-of-polyline markers (-1) in exactly the same places as the coordIndex field. If the greatest index in the colorIndex field is N, there shall be N+1 colours in the Color node.
2. If the colorIndex field is empty, the coordIndex field is used to choose colours from the Color node. If the greatest index in the coordIndex field is N, there shall be N+1 colours in the Color node.

If the color field is NULL and there is a Material defined for the Appearance affecting this IndexedLineSet, the emissiveColor of the Material shall be used to draw the lines. Details on lighting equations as they affect IndexedLineSet nodes are described in 4.14, Lighting model.

Constructor & Destructor Documentation

IndexedLineSet ( const char * name = "" )

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

  colorPerVertex = true;

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 n ) [virtual]

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

0 : set_colorIndex
1 : set_coordIndex
2 : set_color
3 : set_coord

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:

set_colorIndex
set_coordIndex
set_color
set_coord

Implements Node.

wrl::Node::EventOutHandle eventOut ( const unsigned int n ) [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:

0 : color_changed
1 : coord_changed 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:

color_changed
coord_changed

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 : color
1 : coord
2 : colorIndex
3 : colorPerVertex
4 : coordIndex 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:

color
coord
colorIndex
colorPerVertex
coordIndex

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 "IndexedLineSet". Useful for printing.

Implements Node.


Public Member Functions
	IndexedLineSet (const char *name="")
virtual	~IndexedLineSet ()
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.
SFNode	color
SFNode	coord
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.
MFInt32	colorIndex
SFBool	colorPerVertex
MFInt32	coordIndex
Events In
EventIn< MFInt32 >	set_colorIndex
EventIn< MFInt32 >	set_coordIndex
EventIn< SFNode >	set_color
EventIn< SFNode >	set_coord
Events Out
EventOut< SFNode >	color_changed
EventOut< SFNode >	coord_changed

IndexedLineSet Class Reference
[Standard Node Types]

Public Member Functions

Public Attributes

Detailed Description

6.35 IndexedLineSet

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

IndexedLineSet Class Reference [Standard Node Types]

Public Member Functions

Public Attributes

Detailed Description

6.35 IndexedLineSet

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

IndexedLineSet Class Reference
[Standard Node Types]