The NurbsCurve2D node defines a trimming segment that is part of a trimming contour in the u,v domain of the surface. More...
#include <H3D/NurbsCurve2D.h>
Public Member Functions | |
| NurbsCurve2D (Inst< SFNode > _metadata=0, Inst< MFVec2d > _controlPoint=0, Inst< SFInt32 > _tessellation=0, Inst< MFDouble > _weight=0, Inst< MFDouble > _knot=0, Inst< SFInt32 > _order=0, Inst< SFBool > _closed=0) | |
| Constructor. | |
 Public Member Functions inherited from H3D::X3DNurbsControlCurveNode | |
| X3DNurbsControlCurveNode (Inst< SFNode > _metadata=0, Inst< MFVec2d > _controlPoint=0) | |
| Constructor. | |
| Public Member Functions inherited from H3D::X3DNode | |
| X3DNode (Inst< SFNode > _metadata=0) | |
| Constructor. | |
| X3DMetadataObject * | getMetadataByName (const string &_name) |
| Given a name, the first X3DMetadataObject in the metadata field that matches that name is returned. More... | |
| Public Member Functions inherited from H3D::Node | |
| Node () | |
| Constructor. | |
| virtual Node * | clone (bool deepCopy=true, DeepCopyMap *deepCopyMap=NULL) |
| Returns a new instance of this node type with the same state as this one. More... | |
| virtual | ~Node () |
| Destructor. | |
| X3DPrototypeInstance * | getProtoInstanceParent () |
| If this node is the root node in the proto body of a X3DPrototypeInstance then this will return that node. More... | |
| void | setProtoInstanceParent (X3DPrototypeInstance *p) |
| Set the X3DPrototypeInstance this node is the the root node if applicaple. | |
| virtual void | render () |
| the render() function is used for the depth-first rendering traversal of the scene-graph. More... | |
| virtual void | traverseSG (TraverseInfo &ti) |
| traverseSG is called once per scenegraph loop on the scene in order to traverse the scenegraph. More... | |
| virtual bool | lineIntersect (const Vec3f &from, const Vec3f &to, LineIntersectResult &result) |
| Detect intersection between a line segment and the Node. More... | |
| virtual void | closestPoint (const Vec3f &p, NodeIntersectResult &result) |
| Find closest point on Node to p. More... | |
| virtual bool | movingSphereIntersect (H3DFloat radius, const Vec3f &from, const Vec3f &to, NodeIntersectResult &result) |
| Detect collision between a moving sphere and the Node. More... | |
| virtual string | defaultXMLContainerField () |
| Returns the default xml containerField attribute value. More... | |
| virtual Field * | getField (const string &_name) const |
| return a pointer to the field specified by name within this instance | |
| int | addDestructCallback (void(*func)(Node *, void *), void *args) |
| Add a callback function to be run on destruction of node. More... | |
| int | removeDestructCallback (void(*func)(Node *, void *), void *args) |
| Add a callback function to be run on destruction of node. More... | |
Public Attributes | |
| H3DUniquePtr< SFInt32 > | tessellation |
| The tessellation field gives a hint to the curve tessellator by setting an absolute number of subdivision steps. More... | |
| H3DUniquePtr< MFDouble > | weight |
| A weight value that shall be greater than zero is assigned to each controlPoint. More... | |
| H3DUniquePtr< MFDouble > | knot |
| A weight value that shall be greater than zero is assigned to each controlPoint. More... | |
| H3DUniquePtr< SFInt32 > | order |
| Defines the order of curve. More... | |
| H3DUniquePtr< SFBool > | closed |
| closed define whether or not to evaluate the curve as closed. More... | |
| Public Attributes inherited from H3D::X3DNurbsControlCurveNode | |
| H3DUniquePtr< MFVec2d > | controlPoint |
| The control points are defined in 2D coordinate space and interpreted according to the descendent node type as well as the user of this node instance. More... | |
| Public Attributes inherited from H3D::X3DNode | |
| H3DUniquePtr< SFNode > | metadata |
| Meta data about the node. More... | |
Static Public Attributes | |
| static H3DNodeDatabase | database |
| The H3DNodeDatabase for this node. | |
| Static Public Attributes inherited from H3D::X3DNurbsControlCurveNode | |
| static H3DNodeDatabase | database |
| The H3DNodeDatabase for this node. | |
| Static Public Attributes inherited from H3D::X3DNode | |
| static H3DNodeDatabase | database |
| The H3DNodeDatabase for this node. | |
Additional Inherited Members | |
| Public Types inherited from H3D::Node | |
| typedef std::map< Node *, Node * > | DeepCopyMap |
| A map type used during a deep copy clone() to map from original nodes to cloned nodes. | |
| Static Public Member Functions inherited from H3D::Node | |
| static unsigned int | nrNodesAlive () |
| Returns the nr of nodes currently alive, i.e. nodes created but not destructed. | |
| static int | nrNodesCreated () |
| Returns the number of nodes created in total since the start of the program. | |
| Protected Member Functions inherited from H3D::Node | |
| void | cloneFieldValue (Field &_from, Field &_to, bool deepCopy, DeepCopyMap &deepCopyMap) |
| A helper function for the clone() method. More... | |
| Static Protected Member Functions inherited from H3D::Node | |
| static Node * | getClonedInstance (Node *original, bool deepCopy, DeepCopyMap &deepCopyMap) |
| A helper function for nodes that implement clone() More... | |
Detailed Description
The NurbsCurve2D node defines a trimming segment that is part of a trimming contour in the u,v domain of the surface.
NurbsCurve2D nodes are used as children of the Contour2D group.
Examples:
- Internal routes:
Member Data Documentation
◆ closed
| H3DUniquePtr< SFBool > H3D::NurbsCurve2D::closed |
closed define whether or not to evaluate the curve as closed.
Access type: inputOutput
Default value: FALSE
Referenced by NurbsCurve2D().
◆ knot
| H3DUniquePtr< MFDouble > H3D::NurbsCurve2D::knot |
A weight value that shall be greater than zero is assigned to each controlPoint.
The ordering of the values is equivalent to the ordering of the control point values. The number of values shall be identical to the number of control points. If the length of the weight vector is 0, the default weight 1.0 is assumed for each control point, thus defining a non-Rational curve. If the number of weight values is less than the number of control points, all weight values shall be ignored and a value of 1.0 shall be used.
Access type: inputOutput
Referenced by H3D::Contour2D::renderTrimmedCurve().
◆ order
| H3DUniquePtr< SFInt32 > H3D::NurbsCurve2D::order |
Defines the order of curve.
From a mathematical point of view, the curve is defined by a polynomial of the degree order?1. The value of order shall be greater than or equal to 2. An implementation may limit order to a certain number. If it does so, then a warning shall be generated and the surface not displayed. An implementation shall at least support orders 2,3 and 4. The number of control points shall be at least equal to the order of the curve. The order defines the number of adjacent control points that influence a given control point.
Access type: inputOutput
Default value: 3
Referenced by NurbsCurve2D(), and H3D::Contour2D::renderTrimmedCurve().
◆ tessellation
| H3DUniquePtr< SFInt32 > H3D::NurbsCurve2D::tessellation |
The tessellation field gives a hint to the curve tessellator by setting an absolute number of subdivision steps.
These values shall be greater than or equal to the Order field. A value of 0 indicates that the browser choose a suitable tessellation. Interpretation of values below 0 is implementation dependent.
Access type: inputOutput
Default value: 0
Referenced by NurbsCurve2D().
◆ weight
| H3DUniquePtr< MFDouble > H3D::NurbsCurve2D::weight |
A weight value that shall be greater than zero is assigned to each controlPoint.
The ordering of the values is equivalent to the ordering of the control point values. The number of values shall be identical to the number of control points. If the length of the weight vector is 0, the default weight 1.0 is assumed for each control point, thus defining a non-Rational curve. If the number of weight values is less than the number of control points, all weight values shall be ignored and a value of 1.0 shall be used.
Access type: inputOutput
The documentation for this class was generated from the following files:
