XdkWrl: NurbsCurve2D Class Reference

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# NurbsCurve2D Class Reference
[Standard Node Types]

`#include <nurbscurve2d.h>`

Inherits Node.

List of all members.

## Public Member Functions
| NurbsCurve2D (const char *name="")
virtual | ~NurbsCurve2D ()
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
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 | controlPoint
SFInt32 | tessellation
MFFloat | weight
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.
MFFloat | knot
SFInt32 | order
Events In
EventIn< MFVec2f > | set_controlPoint
EventIn< SFInt32 > | set_tessellation
EventIn< MFFloat > | set_weight
Events Out
EventOut< MFVec2f > | controlPoint_changed
EventOut< SFInt32 > | tessellation_changed
EventOut< MFFloat > | weight_changed

## Detailed Description

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

## 6.45 NurbsCurve2D

The NurbsCurve2D node defines a trimming segment that is part of a trimming contour in the u, v domain of the surface. The control points are all defined as 2D vertices in u, v domain. NurbsCurve2D are used as children to the Contour2D group.

In other respects, the NurbsCurve2D has the same functionality as defined for the NurbsCurve node.

## Constructor & Destructor Documentation

NurbsCurve2D | ( | const char * | name = `""` | ) |

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

      tessellation = 0;
      order = 3;

~NurbsCurve2D | ( |  | ) | `[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:

- controlPoint
- tessellation
- weight
- knot
- order

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 : controlPoint
- 1 : tessellation
- 2 : weight
- 3 : knot
- 4 : order 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:

- set_controlPoint
- set_tessellation
- set_weight

Implements Node.

wrl::Node::EventInHandle eventIn | ( | 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.

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:

- controlPoint_changed
- tessellation_changed
- weight_changed

Implements Node.

wrl::Node::EventOutHandle eventOut | ( | 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 : controlPoint_changed
- 1 : tessellation_changed
- 2 : weight_changed 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 `"NurbsCurve2D"`. 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

MFVec2f controlPoint

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

SFInt32 tessellation

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

           tessellation = 0;

MFFloat weight

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

MFFloat knot

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

SFInt32 order

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

           order = 3;

EventIn<MFVec2f> set_controlPoint

Set event associated to exposedField controlPoint

EventIn<SFInt32> set_tessellation

Set event associated to exposedField tessellation

EventIn<MFFloat> set_weight

Set event associated to exposedField weight

EventOut<MFVec2f> controlPoint_changed

Changed event associated to exposedField controlPoint

EventOut<SFInt32> tessellation_changed

Changed event associated to exposedField tessellation

EventOut<MFFloat> weight_changed

Changed event associated to exposedField weight

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