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virtual SoType | getTypeId (void) const |
| Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.
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| SoNurbsCurve (void) |
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virtual void | GLRender (SoGLRenderAction *action) |
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virtual void | rayPick (SoRayPickAction *action) |
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virtual void | getPrimitiveCount (SoGetPrimitiveCountAction *action) |
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virtual void | getBoundingBox (SoGetBoundingBoxAction *action) |
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void | sendPrimitive (SoAction *, SoPrimitiveVertex *) |
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virtual SbBool | affectsState (void) const |
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virtual void | notify (SoNotList *nl) |
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virtual void | callback (SoCallbackAction *action) |
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const SoBoundingBoxCache * | getBoundingBoxCache (void) const |
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void | setOverride (const SbBool state) |
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SbBool | isOverride (void) const |
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void | setNodeType (const NodeType type) |
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NodeType | getNodeType (void) const |
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virtual SoNode * | copy (SbBool copyconnections=FALSE) const |
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virtual void | doAction (SoAction *action) |
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virtual void | GLRenderBelowPath (SoGLRenderAction *action) |
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virtual void | GLRenderInPath (SoGLRenderAction *action) |
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virtual void | GLRenderOffPath (SoGLRenderAction *action) |
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virtual void | getMatrix (SoGetMatrixAction *action) |
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virtual void | handleEvent (SoHandleEventAction *action) |
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virtual void | pick (SoPickAction *action) |
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virtual void | search (SoSearchAction *action) |
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virtual void | write (SoWriteAction *action) |
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virtual void | audioRender (SoAudioRenderAction *action) |
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virtual void | grabEventsSetup (void) |
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virtual void | grabEventsCleanup (void) |
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virtual void | startNotify (void) |
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SbUniqueId | getNodeId (void) const |
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virtual SoChildList * | getChildren (void) const |
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virtual void | writeInstance (SoOutput *out) |
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virtual SoNode * | addToCopyDict (void) const |
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virtual void | copyContents (const SoFieldContainer *from, SbBool copyconnections) |
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virtual SoFieldContainer * | copyThroughConnection (void) const |
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void | setToDefaults (void) |
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SbBool | hasDefaultValues (void) const |
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SbBool | fieldsAreEqual (const SoFieldContainer *container) const |
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void | copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE) |
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SbBool | set (const char *const fielddata) |
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void | get (SbString &fielddata) |
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virtual int | getFields (SoFieldList &l) const |
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virtual int | getAllFields (SoFieldList &l) const |
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virtual SoField * | getField (const SbName &name) const |
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virtual SoField * | getEventIn (const SbName &name) const |
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virtual SoField * | getEventOut (const SbName &name) const |
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SbBool | getFieldName (const SoField *const field, SbName &name) const |
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SbBool | enableNotify (const SbBool flag) |
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SbBool | isNotifyEnabled (void) const |
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SbBool | set (const char *fielddata, SoInput *input) |
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void | get (SbString &fielddata, SoOutput *out) |
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virtual SbBool | validateNewFieldValue (SoField *field, void *newval) |
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virtual void | addWriteReference (SoOutput *out, SbBool isfromfield=FALSE) |
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SbBool | getIsBuiltIn (void) const |
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virtual void | getFieldsMemorySize (size_t &managed, size_t &unmanaged) const |
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void | setUserData (void *userdata) const |
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void * | getUserData (void) const |
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void | ref (void) const |
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void | unref (void) const |
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void | unrefNoDelete (void) const |
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int32_t | getRefCount (void) const |
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void | touch (void) |
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SbBool | isOfType (SoType type) const |
| Returns TRUE if the type of this object is either of the same type or inherited from type.
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virtual SbName | getName (void) const |
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virtual void | setName (const SbName &newname) |
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void | addAuditor (void *const auditor, const SoNotRec::Type type) |
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void | removeAuditor (void *const auditor, const SoNotRec::Type type) |
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const SoAuditorList & | getAuditors (void) const |
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SbBool | shouldWrite (void) |
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void | assertAlive (void) const |
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static SoType | getClassTypeId (void) |
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static void | initClass (void) |
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static SoType | getClassTypeId (void) |
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static void | initClass (void) |
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static void | getScreenSize (SoState *const state, const SbBox3f &boundingbox, SbVec2s &rectsize) |
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static float | getDecimatedComplexity (SoState *state, float complexity) |
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static uint32_t | getCompatibilityTypes (const SoType &nodetype) |
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static SoType | getClassTypeId (void) |
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static SoNode * | getByName (const SbName &name) |
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static int | getByName (const SbName &name, SoNodeList &l) |
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static void | initClass (void) |
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static void | initClasses (void) |
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static SbUniqueId | getNextNodeId (void) |
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static int | getActionMethodIndex (const SoType type) |
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static void | getBoundingBoxS (SoAction *action, SoNode *node) |
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static void | GLRenderS (SoAction *action, SoNode *node) |
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static void | callbackS (SoAction *action, SoNode *node) |
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static void | getMatrixS (SoAction *action, SoNode *node) |
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static void | handleEventS (SoAction *action, SoNode *node) |
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static void | pickS (SoAction *action, SoNode *node) |
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static void | rayPickS (SoAction *action, SoNode *node) |
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static void | searchS (SoAction *action, SoNode *node) |
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static void | writeS (SoAction *action, SoNode *node) |
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static void | audioRenderS (SoAction *action, SoNode *node) |
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static void | getPrimitiveCountS (SoAction *action, SoNode *node) |
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static void | initClass (void) |
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static SoType | getClassTypeId (void) |
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static void | cleanupClass (void) |
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static void | initCopyDict (void) |
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static void | addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy) |
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static SoFieldContainer * | checkCopy (const SoFieldContainer *orig) |
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static SoFieldContainer * | findCopy (const SoFieldContainer *orig, const SbBool copyconnections) |
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static void | copyDone (void) |
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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.
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static SoType | getClassTypeId (void) |
| This static method returns the SoType object associated with objects of this class.
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static void | addName (SoBase *const base, const char *const name) |
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static void | removeName (SoBase *const base, const char *const name) |
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static void | incrementCurrentWriteCounter (void) |
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static void | decrementCurrentWriteCounter (void) |
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static SoBase * | getNamedBase (const SbName &name, SoType type) |
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static int | getNamedBases (const SbName &name, SoBaseList &baselist, SoType type) |
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static SbBool | read (SoInput *input, SoBase *&base, SoType expectedtype) |
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static void | setInstancePrefix (const SbString &c) |
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static void | setTraceRefs (SbBool trace) |
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static SbBool | getTraceRefs (void) |
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static SbBool | connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname) |
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static SbBool | readRoute (SoInput *input) |
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virtual const SoFieldData * | getFieldData (void) const |
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virtual | ~SoNurbsCurve () |
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virtual void | generatePrimitives (SoAction *action) |
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virtual void | computeBBox (SoAction *action, SbBox3f &box, SbVec3f ¢er) |
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virtual SoDetail * | createLineSegmentDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, SoPickedPoint *pp) |
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| SoShape (void) |
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virtual | ~SoShape () |
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float | getComplexityValue (SoAction *action) |
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virtual SbBool | shouldGLRender (SoGLRenderAction *action) |
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void | beginSolidShape (SoGLRenderAction *action) |
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void | endSolidShape (SoGLRenderAction *action) |
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void | GLRenderBoundingBox (SoGLRenderAction *action) |
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SbBool | shouldPrimitiveCount (SoGetPrimitiveCountAction *action) |
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SbBool | shouldRayPick (SoRayPickAction *const action) |
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void | computeObjectSpaceRay (SoRayPickAction *const action) |
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void | computeObjectSpaceRay (SoRayPickAction *const action, const SbMatrix &matrix) |
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virtual SoDetail * | createTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp) |
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virtual SoDetail * | createPointDetail (SoRayPickAction *action, const SoPrimitiveVertex *v, SoPickedPoint *pp) |
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void | invokeTriangleCallbacks (SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2, const SoPrimitiveVertex *const v3) |
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void | invokeLineSegmentCallbacks (SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2) |
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void | invokePointCallbacks (SoAction *const action, const SoPrimitiveVertex *const v) |
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void | beginShape (SoAction *const action, const TriangleShape shapetype, SoDetail *const detail=NULL) |
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void | shapeVertex (const SoPrimitiveVertex *const v) |
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void | endShape (void) |
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void | generateVertex (SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoMultiTextureCoordinateElement *const tce, const float s, const float t, const SbVec3f &normal) |
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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) |
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SbBool | startVertexArray (SoGLRenderAction *action, const SoCoordinateElement *coords, const SbVec3f *pervertexnormals, const SbBool texpervertex, const SbBool colorpervertex) |
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void | finishVertexArray (SoGLRenderAction *action, const SbBool vbo, const SbBool normpervertex, const SbBool texpervertex, const SbBool colorpervertex) |
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| SoNode (void) |
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virtual | ~SoNode () |
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virtual SbBool | readInstance (SoInput *in, unsigned short flags) |
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| SoFieldContainer (void) |
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virtual | ~SoFieldContainer () |
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| SoBase (void) |
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virtual | ~SoBase () |
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virtual void | destroy (void) |
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SbBool | hasMultipleWriteRefs (void) const |
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SbBool | writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const |
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void | writeFooter (SoOutput *out) const |
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virtual const char * | getFileFormatName (void) const |
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virtual SoNotRec | createNotRec (void) |
|
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enum | TriangleShape {
TRIANGLE_STRIP
, TRIANGLE_FAN
, TRIANGLES
, POLYGON
,
QUADS
, QUAD_STRIP
, POINTS
, LINES
,
LINE_STRIP
} |
|
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
} |
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enum | BaseFlags { IS_ENGINE = 0x01
, IS_GROUP = 0x02
} |
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SbUniqueId | uniqueId |
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SbBool | isBuiltIn |
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static SbUniqueId | nextUniqueId = 1 |
|
static int | nextActionMethodIndex = 0 |
|
The SoNurbsCurve class is a node for representing smooth curves.
A general explanation of NURBS is beyond the scope of the Coin documentation. For detailed information, refer to the specialized literature on the topic (for example "An Introduction to NURBS: With
Historical Perspective" by David F. Rogers). A basic overview of curve and surface rendering using NURBS can be found in chapter 8 of "The Inventor Mentor".
Note that knot values should be specified as [0, 1, 2,..., a] rather than [0, 1/a, 2/a,..., 1] to avoid tesselation errors due to floating point precision problems. (Even if the rendered curve looks correct, such issues might surface when e.g. doing picking, since the tesselated representation used internally is not the same as the one you see rendered by OpenGL on-screen.)
Each control point has a weight that changes the shape of its basis function. Weight is analogous to having magnets pulling on the curve. Coordinate3 sets control points to have an equal weight of 1.0 (nonrational). Use Coordinate4 to specify x, y, z and weight values (rational).
A small usage example (drawing a circle using a rational curve):
#Inventor V2.1 ascii
point [
0.0 -5.0 0.0 1.0,
2.5 -2.5 0.0 0.5,
2.5 -0.66987 0.0 1.0,
0.0 1.94013 0.0 0.5,
-2.5 -0.66987 0.0 1.0,
-2.5 -2.5 0.0 0.5,
0.0 -5.0 0.0 1.0
]
}
}
# debug: show all the control points
The SbList class is a template container class for lists.
Definition SbList.h:70
SoSFInt32 numControlPoints
Definition SoNurbsCurve.h:52
SoMFFloat knotVector
Definition SoNurbsCurve.h:53
Rendering of Example Scenegraph
FILE FORMAT/DEFAULTS:
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:
{
if (node->
getTypeId() == SoFile::getClassTypeId()) {
}
}
virtual SoType getTypeId(void) const =0
Returns the type identification of an object derived from a class inheriting SoBase....
The SoFile class is node container for another model file.
Definition SoFile.h:43
The SoNode class is the base class for nodes used in scene graphs.
Definition SoNode.h:56
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 SoShape.
Will create line 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.