man SoNurbsProfile (Fonctions bibliothèques) -

NAME

SoNurbsProfile -

SYNOPSIS



#include <Inventor/nodes/SoNurbsProfile.h>

Inherits SoProfile.

Detailed Description

The SoNurbsProfile class is a node for specifying smooth profile curves.

Use nodes of this type if you want to set up profiles that are smooth curves.

FILE FORMAT/DEFAULTS: 

    NurbsProfile {
        index 0
        linkage START_FIRST
        knotVector 0
    }

Public Member Functions

virtual SoType getTypeId (void) const

SoNurbsProfile (void)

virtual void getTrimCurve (SoState *state, int32_t &numpoints, float *&points, int &floatspervec, int32_t &numknots, float *&knotvector)

virtual void getVertices (SoState *state, int32_t &numvertices, SbVec2f *&vertices)

Static Public Member Functions

static SoType getClassTypeId (void)

static void initClass (void)

Public Attributes

SoMFFloat knotVector

Protected Member Functions

virtual const SoFieldData * getFieldData (void) const

virtual ~SoNurbsProfile ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)

Constructor & Destructor Documentation

SoNurbsProfile::SoNurbsProfile (void)

Constructor.

SoNurbsProfile::~SoNurbsProfile () [protected, virtual]

Destructor.

Member Function Documentation

SoType SoNurbsProfile::getClassTypeId (void) [static]

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoProfile.

SoType SoNurbsProfile::getTypeId (void) const [virtual]

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and 'downward' casting.

Usage example: 

  void foo(SoNode * node)
  {
    if (node->getTypeId() == SoFile::getClassTypeId()) {
      SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
    }
    else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {
      SoGroup * group = (SoGroup *)node;  // safe downward cast, knows the type
    }
  }

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Reimplemented from SoProfile.

const SoFieldData ** SoNurbsProfile::getFieldDataPtr (void) [static, protected]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Reimplemented from SoProfile.

const SoFieldData * SoNurbsProfile::getFieldData (void) const [protected, virtual]

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoProfile.

void SoNurbsProfile::initClass (void) [static]

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoProfile.

void SoNurbsProfile::getTrimCurve (SoState * state, int32_t & numpoints, float *& points, int & floatspervec, int32_t & numknots, float *& knotvector) [virtual]

Return points and knotvector of the state.

Implements SoProfile.

void SoNurbsProfile::getVertices (SoState * state, int32_t & numvertices, SbVec2f *& vertices) [virtual]

Return vertex set of state.

Implements SoProfile.

Member Data Documentation

SoMFFloat SoNurbsProfile::knotVector

Knot values for the nurbs curve.

Author

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