SoIndexedNurbsSurface(3)

📦
version 4.0.10 · 4 versions
, in fedora 43, fedora 44

💖 SoIndexedNurbsSurface(3) 💖

okay bestie, welcome to the SoIndexedNurbsSurface(3) page from the Coin manual. This is part 1, and it is long, so buckle up 🎀

🌸 NAME 🌸

SoIndexedNurbsSurface — the class that renders NURBS surfaces. that's it, that's the whole job. no cap. 💅

✨ SYNOPSIS ✨

#include <Inventor/nodes/SoIndexedNurbsSurface.h>

Inherits SoShape. (yes bestie, it's in the family tree 🫶)

💖 Public Member Functions 💖

  • virtual SoType getTypeId (void) const
  • SoIndexedNurbsSurface (void)
  • virtual void GLRender (SoGLRenderAction *action)
  • virtual void rayPick (SoRayPickAction *action)
  • virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
  • void sendPrimitive (SoAction *, SoPrimitiveVertex *)

🦋 Public Member Functions inherited from SoShape 🦋

  • virtual SbBool affectsState (void) const
  • virtual void notify (SoNotList *nl)
  • virtual void getBoundingBox (SoGetBoundingBoxAction *action)
  • virtual void callback (SoCallbackAction *action)
  • const SoBoundingBoxCache * getBoundingBoxCache (void) const

🌈 Public Member Functions inherited from SoNode 🌈

  • void setOverride (const SbBool state)
  • SbBool isOverride (void) const
  • void setNodeType (const NodeType type)
  • NodeType getNodeType (void) const
  • virtual SoNode * copy (SbBool copyconnections=FALSE) const
  • virtual void doAction (SoAction *action)
  • virtual void GLRenderBelowPath (SoGLRenderAction *action)
  • virtual void GLRenderInPath (SoGLRenderAction *action)
  • virtual void GLRenderOffPath (SoGLRenderAction *action)
  • virtual void getMatrix (SoGetMatrixAction *action)
  • virtual void handleEvent (SoHandleEventAction *action)
  • virtual void pick (SoPickAction *action)
  • virtual void search (SoSearchAction *action)
  • virtual void write (SoWriteAction *action)
  • virtual void audioRender (SoAudioRenderAction *action)
  • virtual void grabEventsSetup (void)
  • virtual void grabEventsCleanup (void)
  • virtual void startNotify (void)
  • SbUniqueId getNodeId (void) const
  • virtual SoChildList * getChildren (void) const
  • virtual void writeInstance (SoOutput *out)
  • virtual SoNode * addToCopyDict (void) const
  • virtual void copyContents (const SoFieldContainer *from, SbBool copyconnections)
  • virtual SoFieldContainer * copyThroughConnection (void) const

🧚 Public Member Functions inherited from SoFieldContainer 🧚

  • void setToDefaults (void)
  • SbBool hasDefaultValues (void) const
  • SbBool fieldsAreEqual (const SoFieldContainer *container) const
  • void copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
  • SbBool set (const char *const fielddata)
  • void get (SbString &fielddata)
  • virtual int getFields (SoFieldList &l) const
  • virtual int getAllFields (SoFieldList &l) const
  • virtual SoField * getField (const SbName &name) const
  • virtual SoField * getEventIn (const SbName &name) const
  • virtual SoField * getEventOut (const SbName &name) const
  • SbBool getFieldName (const SoField *const field, SbName &name) const
  • SbBool enableNotify (const SbBool flag)
  • SbBool isNotifyEnabled (void) const
  • SbBool set (const char *fielddata, SoInput *input)
  • void get (SbString &fielddata, SoOutput *out)
  • virtual SbBool validateNewFieldValue (SoField *field, void *newval)
  • virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
  • SbBool getIsBuiltIn (void) const
  • virtual void getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
  • void setUserData (void *userdata) const
  • void * getUserData (void) const

👑 Public Member Functions inherited from SoBase 👑

  • void ref (void) const
  • void unref (void) const
  • void unrefNoDelete (void) const
  • int32_t getRefCount (void) const
  • void touch (void)
  • SbBool isOfType (SoType type) const
    • Returns TRUE if the type of this object is either of the same type or inherited from type. (so basically a vibe check on the type hierarchy ✨)
  • virtual SbName getName (void) const
  • virtual void setName (const SbName &newname)
  • void addAuditor (void *const auditor, const SoNotRec::Type type)
  • void removeAuditor (void *const auditor, const SoNotRec::Type type)
  • const SoAuditorList & getAuditors (void) const
  • SbBool shouldWrite (void)
  • void assertAlive (void) const

⭐ Static Public Member Functions ⭐

  • static SoType getClassTypeId (void)
  • static void initClass (void)

💜 Static Public Member Functions inherited from SoShape 💜

  • static SoType getClassTypeId (void)
  • static void initClass (void)
    • Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system. (the "get everyone ready" ritual 🕯️)
  • static void getScreenSize (SoState *const state, const SbBox3f &boundingbox, SbVec2s &rectsize)
  • static float getDecimatedComplexity (SoState *state, float complexity)

🌸 Static Public Member Functions inherited from SoNode 🌸

  • static uint32_t getCompatibilityTypes (const SoType &nodetype)
  • static SoType getClassTypeId (void)
  • static SoNode * getByName (const SbName &name)
  • static int getByName (const SbName &name, SoNodeList &l)
  • static void initClass (void)
    • Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
  • static void initClasses (void)
  • static SbUniqueId getNextNodeId (void)
  • static int getActionMethodIndex (const SoType type)
  • static void getBoundingBoxS (SoAction *action, SoNode *node)
  • static void GLRenderS (SoAction *action, SoNode *node)
  • static void callbackS (SoAction *action, SoNode *node)
  • static void getMatrixS (SoAction *action, SoNode *node)
  • static void handleEventS (SoAction *action, SoNode *node)
  • static void pickS (SoAction *action, SoNode *node)
  • static void rayPickS (SoAction *action, SoNode *node)
  • static void searchS (SoAction *action, SoNode *node)
  • static void writeS (SoAction *action, SoNode *node)
  • static void audioRenderS (SoAction *action, SoNode *node)
  • static void getPrimitiveCountS (SoAction *action, SoNode *node)

🎀 Static Public Member Functions inherited from SoFieldContainer 🎀

  • static void initClass (void)
    • Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
  • static SoType getClassTypeId (void)
    • This static method returns the SoType object associated with objects of this class.
  • static void cleanupClass (void)
  • static void initCopyDict (void)
  • static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
  • static SoFieldContainer * checkCopy (const SoFieldContainer *orig)
  • static SoFieldContainer * findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
  • static void copyDone (void)

🍓 Static Public Member Functions inherited from SoBase 🍓

  • static void initClass (void)
    • Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
  • static SoType getClassTypeId (void)
    • This static method returns the SoType object associated with objects of this class.
  • static void addName (SoBase *const base, const char *const name)
  • static void removeName (SoBase *const base, const char *const name)
  • static void incrementCurrentWriteCounter (void)
  • static void decrementCurrentWriteCounter (void)
  • static SoBase * getNamedBase (const SbName &name, SoType type)
  • static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
  • static SbBool read (SoInput *input, SoBase *&base, SoType expectedtype)
  • static void setInstancePrefix (const SbString &c)
  • static void setTraceRefs (SbBool trace)
  • static SbBool getTraceRefs (void)
  • static SbBool connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
  • static SbBool readRoute (SoInput *input)

🌟 Public Attributes 🌟

these are the fields, bestie, the actual knobs you turn 👇

  • SoSFInt32 numUControlPoints
  • SoSFInt32 numVControlPoints
  • SoMFInt32 coordIndex
  • SoMFFloat uKnotVector
  • SoMFFloat vKnotVector
  • SoSFInt32 numSControlPoints
  • SoSFInt32 numTControlPoints
  • SoMFInt32 textureCoordIndex
  • SoMFFloat sKnotVector
  • SoMFFloat tKnotVector

🦋 Protected Member Functions 🦋

  • virtual const SoFieldData * getFieldData (void) const
  • virtual ~SoIndexedNurbsSurface ()
  • virtual void generatePrimitives (SoAction *action)
  • virtual void computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center)
  • SoDetail * createTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp)

💫 Protected Member Functions inherited from SoShape 💫

  • SoShape (void)
  • virtual ~SoShape ()
  • float getComplexityValue (SoAction *action)
  • virtual SbBool shouldGLRender (SoGLRenderAction *action)
  • void beginSolidShape (SoGLRenderAction *action)
  • void endSolidShape (SoGLRenderAction *action)
  • void GLRenderBoundingBox (SoGLRenderAction *action)
  • SbBool shouldPrimitiveCount (SoGetPrimitiveCountAction *action)
  • SbBool shouldRayPick (SoRayPickAction *const action)
  • void computeObjectSpaceRay (SoRayPickAction *const action)
  • void computeObjectSpaceRay (SoRayPickAction *const action, const SbMatrix &matrix)
  • virtual SoDetail * createLineSegmentDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, SoPickedPoint *pp)
  • virtual SoDetail * createPointDetail (SoRayPickAction *action, const SoPrimitiveVertex *v, SoPickedPoint *pp)
  • void invokeTriangleCallbacks (SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2, const SoPrimitiveVertex *const v3)
  • void invokeLineSegmentCallbacks (SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2)
  • void invokePointCallbacks (SoAction *const action, const SoPrimitiveVertex *const v)
  • void beginShape (SoAction *const action, const TriangleShape shapetype, SoDetail *const detail=NULL)
  • void shapeVertex (const SoPrimitiveVertex *const v)
  • void endShape (void)
  • void generateVertex (SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoMultiTextureCoordinateElement *const tce, const float s, const float t, const SbVec3f &normal)
  • void generateVertex (SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoMultiTextureCoordinateElement *const tce, const float s, const float t, const float r, const SbVec3f &normal)
  • SbBool startVertexArray (SoGLRenderAction *action, const SoCoordinateElement *coords, const SbVec3f *pervertexnormals, const SbBool texpervertex, const SbBool colorpervertex)
  • void finishVertexArray (SoGLRenderAction *action, const SbBool vbo, const SbBool normpervertex, const SbBool texpervertex, const SbBool colorpervertex)

🌈 Protected Member Functions inherited from SoNode 🌈

  • SoNode (void)
  • virtual ~SoNode ()
  • virtual SbBool readInstance (SoInput *in, unsigned short flags)

…and that's where part 1 cuts off, bestie 👀 part 2 is loading, don't go anywhere 💫

Protected Member Functions inherited from SoFieldContainer

  • SoFieldContainer(void)
  • virtual ~SoFieldContainer()

Protected Member Functions inherited from SoBase

  • SoBase(void)
  • virtual ~SoBase()
  • virtual void destroy(void)
  • SbBool hasMultipleWriteRefs(void) const
  • SbBool writeHeader(SoOutput *out, SbBool isgroup, SbBool isengine) const
  • void writeFooter(SoOutput *out) const
  • virtual const char * getFileFormatName(void) const
  • virtual SoNotRec createNotRec(void)

Static Protected Member Functions

  • static const SoFieldData ** getFieldDataPtr(void)

Static Protected Member Functions inherited from SoShape

  • static const SoFieldData ** getFieldDataPtr(void)

Static Protected Member Functions inherited from SoNode

  • static const SoFieldData ** getFieldDataPtr(void)
  • static void setNextActionMethodIndex(int index)
  • static int getNextActionMethodIndex(void)
  • static void incNextActionMethodIndex(void)
  • static void setCompatibilityTypes(const SoType &nodetype, const uint32_t bitmask)

Static Protected Member Functions inherited from SoBase

  • static uint32_t getCurrentWriteCounter(void)
  • static void staticDataLock(void)
  • static void staticDataUnlock(void)

💫 Additional Inherited Members 💫

okay bestie this is the part where the family tree gets long. all of this is stuff this class inherited from its ancestors, it's giving "hand-me-downs but make them iconic". 👑

Public Types inherited from SoShape

  • enum TriangleShape { TRIANGLE_STRIP, TRIANGLE_FAN, TRIANGLES, POLYGON, QUADS, QUAD_STRIP, POINTS, LINES, LINE_STRIP }

Public Types inherited from SoNode

  • enum NodeType { INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004, INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040, COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400, COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000, COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000, COIN_4_0 = 0x20000 }

Protected Types inherited from SoBase

  • enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }

Protected Attributes inherited from SoNode

  • SbUniqueId uniqueId

Protected Attributes inherited from SoFieldContainer

  • SbBool isBuiltIn

Static Protected Attributes inherited from SoNode

  • static SbUniqueId nextUniqueId = 1
  • static int nextActionMethodIndex = 0

🌸 Detailed Description 🌸

The SoIndexedNurbsSurface class can be used to render NURBS surfaces. 🦋

It is very similar to the SoNurbsSurface class, but the glow-up is that control points can be specified using indices. 💅

FILE FORMAT/DEFAULTS:

IndexedNurbsSurface {
    numUControlPoints 0
    numVControlPoints 0
    coordIndex 0
    uKnotVector 0
    vKnotVector 0
    numSControlPoints 0
    numTControlPoints 0
    textureCoordIndex -1
    sKnotVector 0
    tKnotVector 0
}

🎀 Constructor & Destructor Documentation 🎀

SoIndexedNurbsSurface::SoIndexedNurbsSurface(void)

Constructor. it's giving ✨birth✨.

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

Destructor. it's giving ✨closure✨, we love a clean exit.

💖 Member Function Documentation 💖

SoType SoIndexedNurbsSurface::getClassTypeId(void) [static]

This static method returns the SoType object associated with objects of this class. like a little name tag but for types, iykyk. 🏷️

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

Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting. no cap, this is how the library figures out what it's actually looking at. 🔍

Reimplemented from SoShape.

const SoFieldData ** SoIndexedNurbsSurface::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. so like… bestie, you probably don't need this one. 🙈

Returns the SoFieldData class which holds information about fields in this node.

const SoFieldData * SoIndexedNurbsSurface::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 SoShape.

void SoIndexedNurbsSurface::initClass(void) [static]

void SoIndexedNurbsSurface::GLRender(SoGLRenderAction * action) [virtual]

Action method for the SoGLRenderAction. 🔥

This is called during rendering traversals. Nodes influencing the rendering state in any way or want to throw geometry primitives at OpenGL override this method.

Reimplemented from SoShape.

void SoIndexedNurbsSurface::rayPick(SoRayPickAction * action) [virtual]

Calculates picked point based on primitives generated by subclasses. 🎯

Reimplemented from SoShape.

void SoIndexedNurbsSurface::getPrimitiveCount(SoGetPrimitiveCountAction * action) [virtual]

Action method for the SoGetPrimitiveCountAction.

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action. it's literally just doing inventory but for geometry. 📋

Nodes influencing how geometry nodes calculate their primitive count also override this method to change the relevant state variables.

Reimplemented from SoShape.

void SoIndexedNurbsSurface::sendPrimitive(SoAction * , SoPrimitiveVertex * )

This method is part of the original SGI Inventor API, but not implemented in Coin, as it looks like a method that should probably have been private in Open Inventor. 🫠 so yeah, it's here, it exists, it does nothing.

void SoIndexedNurbsSurface::generatePrimitives(SoAction * action) [protected], [virtual]

The method implements action behavior for shape nodes for SoCallbackAction. It is invoked from SoShape::callback(). (Subclasses should not override SoNode::callback().) ⚠️

The subclass implementations uses the convenience methods SoShape::beginShape(), SoShape::shapeVertex(), and SoShape::endShape(), with SoDetail instances, to pass the primitives making up the shape back to the caller.

Implements SoShape.

void SoIndexedNurbsSurface::computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center) [protected], [virtual]

Calculates the bounding box of all control points and sets the center to the average of these points. 📦 math girlies rise.

Implements SoShape.

SoDetail * SoIndexedNurbsSurface::createTriangleDetail(SoRayPickAction * action, const SoPrimitiveVertex * v1, const SoPrimitiveVertex * v2, const SoPrimitiveVertex * v3, SoPickedPoint * pp) [protected], [virtual]

Will create triangle detail for a SoPickedPoint. This method will only be called internally, when generatePrimitives() is used for picking (SoShape::rayPick() is not overridden). 👀

This method returns NULL in Open Inventor, and subclasses will need to override this method to create details for a SoPickedPoint.

This is not necessary with Coin. Of course, if you choose to override it, it will work in the same way as Open Inventor.

For this to work, you must supply a face or line detail when generating primitives. If you supply NULL for the detail argument in SoShape::beginShape(), you'll have to override this method. 🚨

Reimplemented from SoShape.

🍓 Member Data Documentation 🍓

SoSFInt32 SoIndexedNurbsSurface::numUControlPoints

Number of control points in the U direction.

SoSFInt32 SoIndexedNurbsSurface::numVControlPoints

Number of control points in the V direction.

SoMFInt32 SoIndexedNurbsSurface::coordIndex

The coordinate control point indices. 🧮

SoMFFloat SoIndexedNurbsSurface::uKnotVector

The Bezier knot vector for the U direction.

SoMFFloat SoIndexedNurbsSurface::vKnotVector

The Bezier knot vector for the V direction.

SoSFInt32 SoIndexedNurbsSurface::numSControlPoints

Number of control points in the S direction.

SoSFInt32 SoIndexedNurbsSurface::numTControlPoints

Number of control points in the T direction.

SoMFInt32 SoIndexedNurbsSurface::textureCoordIndex

The texture coordinate control point indices. ✨

SoMFFloat SoIndexedNurbsSurface::sKnotVector

The Bezier knot vector for the S direction.

SoMFFloat SoIndexedNurbsSurface::tKnotVector

The Bezier knot vector for the T direction.

👑 Author 👑

Generated automatically by Doxygen for Coin from the source code. (so no, a human did not lovingly hand-write this, it's a robot doing its little thing 🤖)

that's the whole page bestie, you ate. this was Version 4.0.10, dated Thu Jun 25 2026 00:00:00, and the manual page is SoIndexedNurbsSurface(3). periodt. 💅🫶

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