SoIndexedNurbsSurface(3)

📦 version 3.1.3, in fedora 43, fedora 44

💖 SoIndexedNurbsSurface(3) 💖

okay bestie, sit down, hydrate, and let's get into it 🫶 — this is the page for SoIndexedNurbsSurface(3) out of the Library Functions Manual, and she is iconic, she renders NURBS surfaces, she has so many inherited friends. no cap. ✨

🌸 NAME 🌸

SoIndexedNurbsSurface — the SoIndexedNurbsSurface class can be used to render NURBS surfaces. 💅

✨ SYNOPSIS ✨

first things first, you gotta invite her in:

#include <Inventor/nodes/SoIndexedNurbsSurface.h>

Inherits SoShape. yes she's a SoShape girlie, that's the whole lineage situation 🦋

🎀 Public Member Functions 🎀

  • virtual SoType getTypeId (void) const — the type-id moment, virtual, const, no notes 💖
  • SoIndexedNurbsSurface (void) — the constructor, she's born, no arguments, simple like that ✨
  • virtual void GLRender (SoGLRenderAction *action) — the GL render hook, takes an action pointer, that's the whole deal 🌈
  • virtual void rayPick (SoRayPickAction *action) — the ray pick hook, also virtual, also takes an action pointer 🎀
  • virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action) — counts primitives, gets the action, virtual, slay 💫
  • void sendPrimitive (SoAction *, SoPrimitiveVertex *) — sends a primitive, two pointers, no names on them, that's just how it is 😌

🫶 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

🦋 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)
  • uint32_t 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

💜 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

🌈 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
  • 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) — the class type id, static, we love her 🎀
  • static void initClass (void) — the init, static, does the init thing ✨

🫶 inherited from SoShape

  • static SoType getClassTypeId (void)
  • static void initClass (void)
  • static void getScreenSize (SoState *const state, const SbBox3f &boundingbox, SbVec2s &rectsize)
  • static float getDecimatedComplexity (SoState *state, float complexity)

🦋 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)
  • static void initClasses (void)
  • static uint32_t 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)

💜 inherited from SoFieldContainer

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

🌈 inherited from SoBase

  • static void initClass (void)
  • static SoType getClassTypeId (void)
  • 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 data she's holding down 💅

  • SoSFInt32 numUControlPoints — number of U control points 🎀
  • SoSFInt32 numVControlPoints — number of V control points 🦋
  • SoMFInt32 coordIndex — the coord index ✨
  • SoMFFloat uKnotVector — the U knot vector 🌸
  • SoMFFloat vKnotVector — the V knot vector 💜
  • SoSFInt32 numSControlPoints — number of S control points 💖
  • SoSFInt32 numTControlPoints — number of T control points 🌈
  • SoMFInt32 textureCoordIndex — the texture coord index 💫
  • SoMFFloat sKnotVector — the S knot vector 🎀
  • SoMFFloat tKnotVector — the T knot vector 🫶

🧚 Protected Member Functions 🧚

  • virtual const SoFieldData * getFieldData (void) const — the field data getter, protected, virtual, const, she's everything ✨
  • virtual ~SoIndexedNurbsSurface () — the destructor, virtual, protected, say bye 😭
  • virtual void generatePrimitives (SoAction *action) — generates primitives, takes the action 🦋
  • virtual void computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center) — computes the bounding box, gives you box and center 🎀
  • SoDetail * createTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp) — makes triangle detail from three primitive vertices, the action and a picked point 💜

🫶 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 SoTextureCoordinateElement *const tce, const float s, const float t, const SbVec3f &normal)
  • void generateVertex (SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoTextureCoordinateElement *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)

🦋 inherited from SoNode

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

💜 inherited from SoFieldContainer

  • SoFieldContainer (void)
  • virtual ~SoFieldContainer ()

🌈 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

🍓 Static Protected Member Functions 🍓

  • static const SoFieldData ** getFieldDataPtr (void) — the field data pointer getter, static, protected, double pointer energy 💅

🫶 inherited from SoShape

  • static const SoFieldData ** getFieldDataPtr (void)

and that's the whole SYNOPSIS bestie, every last signature accounted for, no skips, no cap 😭✨ the rest of the page is still coming, so don't you dare close the tab 💖

Static Protected Member Functions inherited from SoNode

okay so these are the static helper girlys SoNode passes down the family line, no cap:

  • 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

and these ones came from grandma SoBase 💜:

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

🫶 Additional Inherited Members 🫶

Public Types inherited from SoShape

the shape enum situation, periodt:

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

Public Types inherited from SoNode

and the big iconic version-flavoured enum, literal hex everywhere 🔥:

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 }

Protected Types inherited from SoBase

tiny but mighty 🎀:

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

Protected Attributes inherited from SoNode

  • uint32_t uniqueId

Protected Attributes inherited from SoFieldContainer

  • SbBool isBuiltIn

Static Protected Attributes inherited from SoNode

  • static uint32_t nextUniqueId = 1
  • static int nextActionMethodIndex = 0

✨ Detailed Description ✨

The SoIndexedNurbsSurface class can be used to render NURBS surfaces. it's giving geometry, it's giving curves, it's giving slay 🌈

It is very similar to the SoNurbsSurface class, but controlpoints can be specified using indices. that's literally the whole glow-up bestie 💅

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. hello bestie, welcome to existence ✨

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

Destructor. bye babe, thank you for your service 🫶

💫 Member Function Documentation 💫

SoType SoIndexedNurbsSurface::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. it's basically the "who dis" of the class system 💀

Usage example:

void foo(SoNode * node)
{
  if (node->getTypeId() == SoFile::getClassTypeId()) {
    SoFile * filenode = (SoFile *)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. macros do the heavy lifting, you just vibe 🦋

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

Reimplemented from SoShape.

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. if there's nothing in there it just says NULL, very honest of it fr fr 💜

Reimplemented from SoShape.

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 who wants to throw geometry primitives at OpenGL overrides this method. yes bestie, you literally YEET primitives at OpenGL 🔥

Reimplemented from SoShape.

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

Calculates picked point based on primitives generated by subclasses. it's the "did you just click on me" detector 🎯

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. math era 😭 numbers era 😭

Nodes influencing how geometry nodes calculates their primitive count also overrides 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. not me finding out it's just... not implemented 😭

fr fr: this one does NOT do anything in Coin. it exists for API vibes only. don't build your whole personality around it bestie 💀

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().) 👑 so don't touch that one, k?

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. build the shape piece by piece, it's giving arts and crafts 🎨

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. average = the mean girl of coordinates 💅

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). internal only, it's shy 🙈

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. no detail, no triangle detail — supply it or do the override yourself, those are the rules bestie 📏

Reimplemented from SoShape.

🌸 Member Data Documentation 🌸

SoSFInt32 SoIndexedNurbsSurface::numUControlPoints

Number of control points in the U direction. count them, they're your U besties 💖

SoSFInt32 SoIndexedNurbsSurface::numVControlPoints

Number of control points in the V direction. and the V squad 💜

SoMFInt32 SoIndexedNurbsSurface::coordIndex

The coordinate control point indices. the index receipts 📋✨

SoMFFloat SoIndexedNurbsSurface::uKnotVector

The Bezier knot vector for the U direction. knots but make them U 🎀

SoMFFloat SoIndexedNurbsSurface::vKnotVector

The Bezier knot vector for the V direction. and the V knots, obviously, they come as a pair, it's giving soulmates 🫶

SoSFInt32 SoIndexedNurbsSurface::numSControlPoints

Number of control points in the S direction. S is for slay, and also for texture-adjacent stuff ✨

SoSFInt32 SoIndexedNurbsSurface::numTControlPoints

Number of control points in the T direction. T for... tea ☕

SoMFInt32 SoIndexedNurbsSurface::textureCoordIndex

The texture coordinate control point indices. where the texture girlies live 🌈

SoMFFloat SoIndexedNurbsSurface::sKnotVector

The Bezier knot vector for the S direction. more knots, more vibes 🦋

SoMFFloat SoIndexedNurbsSurface::tKnotVector

The Bezier knot vector for the T direction. the final knots, we're done, we did it 🎉

💜 Author 💜

Generated automatically by Doxygen for Coin from the source code. not a human writing this, just a robot with impeccable documentation taste 🤖✨

and that's a wrap bestie!! this whole page came from the Coin source, Version 3.1.3, and the date's stamped on the original footer — so like, check the page footer for the timestamp, mwah 💅💖 go forth and render those NURBS surfaces, you absolute icon 👑

📦 where this page comes from