TextureCoordinate Class Reference
[Standard Node Types]

#include <texturecoordinate.h>

Inherits Node.

Inheritance diagram for TextureCoordinate:

[legend]List of all members.

Public Member Functions
	TextureCoordinate (const char *name="")
virtual	~TextureCoordinate ()
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.
MFVec2f	point
Events In
EventIn< MFVec2f >	set_point
Events Out
EventOut< MFVec2f >	point_changed

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Detailed Description

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

6.67 TextureCoordinate

The TextureCoordinate node specifies a set of 2D texture coordinates used by vertex-based geometry nodes (e.g., IndexedFaceSet and ElevationGrid) to map textures to vertices. Textures are two dimensional colour functions that, given an (s, t) coordinate, return a colour value colour(s, t). Texture map values (ImageTexture, MovieTexture, and PixelTexture) range from [0.0, 1.0] along the S-axis and T-axis. However, TextureCoordinate values, specified by the point field, may be in the range (-,). Texture coordinates identify a location (and thus a colour value) in the texture map. The horizontal coordinate s is specified first, followed by the vertical coordinate t.

If the texture map is repeated in a given direction (S-axis or T-axis), a texture coordinate C (s or t) is mapped into a texture map that has N pixels in the given direction as follows:

    Texture map location = (C - floor(C)) × N

If the texture map is not repeated, the texture coordinates are clamped to the 0.0 to 1.0 range as follows:

    Texture map location = N,     if C > 1.0,
                         = 0.0,   if C < 0.0,
                         = C × N, if 0.0 <= C <= 1.0.

Details on repeating textures are specific to texture map node types described in 6.22, ImageTexture, 6.28, MovieTexture, and 6.33, PixelTexture.

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Constructor & Destructor Documentation

TextureCoordinate (  const char *  name = ""  )

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

~TextureCoordinate (   )  [virtual]

Virtual destructor, does nothing

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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. 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: set_point 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 : point_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: point_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 : 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: 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 "TextureCoordinate". Useful for printing. Implements Node.

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Member Data Documentation

MFVec2f point

See Detailed Description for meaning of this field. Default value is set to MFVec2f default value

EventOut<MFVec2f> point_changed

Changed event associated to exposedField point

EventIn<MFVec2f> set_point

Set event associated to exposedField point

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Generated on 24 Feb 2005 with version 1.3.9.1.