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virtual bool | generateDefaultNormals (SoState *state, SoNormalBundle *nb) |
| Subclasses may define this method to generate normals to use when the normal binding is DEFAULT and there aren't enough normals in the state.
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virtual void | notify (SoNotList *list) |
| Redefines this to invalidate normal cache.
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virtual bool | affectsState () const |
| Overrides default method on SoNode.
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virtual void | getBoundingBox (SoGetBoundingBoxAction *action) |
| Implements bounding box method using virtual computeBBox() method.
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virtual void | GLRender (SoGLRenderAction *action) |
| Implements rendering by rendering each primitive generated by subclass.
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virtual void | rayPick (SoRayPickAction *action) |
| Implements picking along a ray by intersecting the ray with each primitive generated by subclass.
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virtual void | callback (SoCallbackAction *action) |
| Implements primitive generation for all shapes.
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virtual void | computeBBox (SoAction *action, SbBox3f &box, SbVec3f ¢er)=0 |
| Computes bounding box for subclass using information in the given action (which may not necessarily be an SoGetBoundingBoxAction).
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void | setOverride (bool state) |
| Turns override flag on or off.
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bool | isOverride () const |
| Returns the state of the override flag.
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SoNode * | copy (bool copyConnections=FALSE) const |
| Creates and returns an exact copy of the node.
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virtual bool | affectsState () const |
| Returns TRUE if a node has an effect on the state during traversal.
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virtual void | doAction (SoAction *action) |
| This method performs the "typical" operation of a node for any action.
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virtual void | GLRender (SoGLRenderAction *action) |
| These virtual functions implement all of the actions for nodes, Most of the default implementations do nothing.
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virtual void | callback (SoCallbackAction *action) |
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virtual void | getBoundingBox (SoGetBoundingBoxAction *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 | rayPick (SoRayPickAction *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 | GLRenderBelowPath (SoGLRenderAction *action) |
| These methods make render traversal faster by implementing different rendering paths corresponding to different action path codes.
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virtual void | GLRenderInPath (SoGLRenderAction *action) |
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virtual void | GLRenderOffPath (SoGLRenderAction *action) |
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virtual void | grabEventsSetup () |
| These virtual functions are called when a node gains or loses status as "grabber" of events (see HandleEventAction::setGrabber()).
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virtual void | grabEventsCleanup () |
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virtual void | startNotify () |
| Initiates notification from an instance.
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virtual void | notify (SoNotList *list) |
| Propagates modification notification through an instance.
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SbNodeIdType | getNodeId () const |
| Returns the unique id for a node.
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virtual SoChildList * | getChildren () const |
| Returns pointer to children, or NULL if none.
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virtual void | writeInstance (SoOutput *out) |
| Writes instance to SoOutput. (Used for either stage of writing.)
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virtual SoNode * | addToCopyDict () const |
| Recursively adds this node and all nodes under it to the copy dictionary.
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virtual void | copyContents (const SoFieldContainer *fromFC, bool copyConnections) |
| Copies the contents of the given node into this instance.
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virtual SoFieldContainer * | copyThroughConnection () const |
| Copies an instance that is encountered through a field connection.
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void | setToDefaults () |
| Sets all fields in this object to their default values.
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bool | hasDefaultValues () const |
| Returns TRUE if all of the object's fields have their default values.
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bool | fieldsAreEqual (const SoFieldContainer *fc) const |
| Returns TRUE if this object's fields are exactly equal to fc's fields.
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void | copyFieldValues (const SoFieldContainer *fc, bool copyConnections=FALSE) |
| Copies the contents of fc's fields into this object's fields.
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bool | set (const char *fieldDataString) |
| Sets one or more fields in this object to the values specified in the given string, which should be a string in the Inventor file format.
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void | get (SbString &fieldDataString) |
| Returns the values of the fields of this object in the Inventor ASCII file format in the given string.
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virtual int | getFields (SoFieldList &list) const |
| Appends pointers to all of this object's fields to resultList, and returns the number of fields appended.
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virtual SoField * | getField (const SbName &fieldName) const |
| Returns a pointer to the field with the given name.
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bool | getFieldName (const SoField *field, SbName &fieldName) const |
| Returns the name of the given field in the fieldName argument.
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bool | enableNotify (bool flag) |
| Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE).
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bool | isNotifyEnabled () const |
| Notification is the process of telling interested objects that this object has changed.
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bool | set (const char *fieldDataString, SoInput *dictIn) |
| Sets one or more fields in this object to the values specified in the given string, which should be a string in the Inventor file format.
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void | get (SbString &fieldDataString, SoOutput *dictOut) |
| Returns the values of the fields of this object in the Inventor ASCII file format in the given string.
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virtual void | notify (SoNotList *) |
| Propagates modification notification through an instance.
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virtual void | addWriteReference (SoOutput *out, bool isFromField=FALSE) |
| Adds a reference to the instance when writing.
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virtual void | writeInstance (SoOutput *out) |
| Writes instance to SoOutput. (Used only for last stage of writing)
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bool | getIsBuiltIn () const |
| Returns whether or not instance is considered 'built-in' to the library.
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virtual const SoFieldData * | getFieldData () const |
| Returns an SoFieldData structure for the node.
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virtual void | copyContents (const SoFieldContainer *fromFC, bool copyConnections) |
| Copies the contents of the given node into this instance.
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virtual SoFieldContainer * | copyThroughConnection () const |
| During a copy operation, this copies an instance that is encountered through a field connection.
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void | addManagedSensor (SoSensor *sensor) |
| Adds a sensor which is managed by the field container.
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void | ref () const |
| Adds and removes a reference to an instance.
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void | unref () const |
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void | unrefNoDelete () const |
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void | touch () |
| Marks an instance as modified, simulating a change to it.
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virtual SoType | getTypeId () const =0 |
| Returns the type identifier for a specific instance.
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bool | isOfType (SoType type) const |
| Returns TRUE if this object is of the type specified in type or is derived from that type.
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virtual SbName | getName () const |
| Returns the name of an instance.
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virtual void | setName (const SbName &name) |
| Sets the name of an instance.
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virtual void | startNotify () |
| Initiates notification from an instance.
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virtual void | notify (SoNotList *list) |
| Propagates modification notification through an instance.
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void | addAuditor (void *auditor, SoNotRec::Type type) |
| Adds/removes an auditor to/from list.
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void | removeAuditor (void *auditor, SoNotRec::Type type) |
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const SoAuditorList & | getAuditors () |
| Returns auditor list– used by SoField and SoEngineOutput to trace forward connections.
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int | getRefCount () const |
| Returns current reference count.
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virtual void | addWriteReference (SoOutput *out, bool isFromField=FALSE) |
| Adds a reference to the instance when writing.
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bool | shouldWrite () |
| Returns TRUE if the instance should be written, based on the write-reference info already accumulated.
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static void | initClass () |
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static void | initClass () |
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static void | getScreenSize (SoState *state, const SbBox3f &boundingBox, SbVec2s &rectSize) |
| This can be used by subclasses when the complexity type is SCREEN_SPACE to determine how many window pixels are covered by the shape.
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static void | setPreVertexArrayRenderingCallback (VertexArrayRenderingCB *cb) |
| register global pre callback for vertex array rendering (MeVis ONLY)
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static void | setPostVertexArrayRenderingCallback (VertexArrayRenderingCB *cb) |
| register global post callback for vertex array rendering (MeVis ONLY)
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static SoType | getClassTypeId () |
| Returns type identifier for the SoNode class.
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static SoNode * | getByName (const SbName &name) |
| Returns the last node given the specified name.
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static int | getByName (const SbName &name, SoNodeList &list) |
| Returns the number of nodes with the given name, and adds to list pointers to those nodes.
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static void | initClass () |
| Initializes base node class.
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static void | initClasses () |
| Initialize ALL Inventor node classes.
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static SbNodeIdType | getNextNodeId () |
| Returns the next available unique id.
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static int | getActionMethodIndex (SoType t) |
| Returns the index of this node in the action/method table, given its type.
|
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static SoType | getClassTypeId () |
| Returns the type of this class.
|
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static void | initClass () |
| Setup type information.
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static void | initCopyDict () |
| During a copy operation, copies of nodes and engines are stored in a dictionary, keyed by the original node or engine pointer, so that copies can be re-used.
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static void | addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy) |
| Adds an instance to the dictionary.
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static SoFieldContainer * | checkCopy (const SoFieldContainer *orig) |
| If a copy of the given instance is in the dictionary, this returns it.
|
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static SoFieldContainer * | findCopy (const SoFieldContainer *orig, bool copyConnections) |
| If a copy of the given instance is not in the dictionary, this returns NULL.
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static void | copyDone () |
| Cleans up the dictionary when done.
|
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static SoType | getClassTypeId () |
| Returns type identifier for this class.
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static void | initClass () |
| Setup type information.
|
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static void | incrementCurrentWriteCounter () |
| Increments the current write counter at the start of a write operation.
|
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static void | decrementCurrentWriteCounter () |
| Decrements the current write counter after a write operation, in some rare cases.
|
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static void | addName (SoBase *, const char *) |
| Internal methods used to maintain the global name dictionary.
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static void | removeName (SoBase *, const char *) |
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static SoBase * | getNamedBase (const SbName &, SoType) |
| Helper routines used to get stuff out of nameDict.
|
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static int | getNamedBases (const SbName &, SoBaseList &, SoType) |
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static bool | read (SoInput *in, SoBase *&base, SoType expectedType) |
| Reads one instance of some subclass of SoBase.
|
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static void | setInstancePrefix (const SbString &c) |
| This defaults to "+" and is used when naming nodes that are DEF's and USE'd.
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| SoVertexShape () |
| Constructor - makes this abstract.
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virtual | ~SoVertexShape () |
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SoVertexProperty * | getVertexProperty () |
| Get the SoVertexProperty from the vertexProperty field, returning NULL if the contained node is not of type SoVertexProperty.
|
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virtual bool | shouldGLRender (SoGLRenderAction *action) |
| Returns TRUE if the shape should be rendered.
|
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void | setNormalCache (SoState *state, int numNormals, const SbVec3f *normals) |
| Sets up a cache to hold normals.
|
|
SoNormalCache * | getNormalCache () const |
| Returns the current normal cache, or NULL if there is none.
|
|
bool | beginVertexArrayRendering (SoGLRenderAction *action) |
| enables vertex array rendering client state and VBO rendering (if supported), returns true if VBOs are used (MeVis ONLY)
|
|
void | endVertexArrayRendering (SoGLRenderAction *action, bool vboWasUsed) |
| disables vertex array rendering and VBOs if vboWasUsed is passes as true (MeVis ONLY)
|
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| SoShape () |
| Constructor.
|
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virtual void | generatePrimitives (SoAction *action)=0 |
| This method MUST be defined by each subclass to generate primitives (triangles, line segments, points) that represent the shape.
|
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virtual bool | shouldGLRender (SoGLRenderAction *action) |
| Returns TRUE if the shape should be rendered.
|
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bool | shouldRayPick (SoRayPickAction *action) |
| Returns TRUE if the shape may be picked.
|
|
void | beginSolidShape (SoGLRenderAction *action) |
| These can be used by solid shapes to indicate so during rendering.
|
|
void | endSolidShape (SoGLRenderAction *action) |
|
void | computeObjectSpaceRay (SoRayPickAction *action) |
| Computes a picking ray in the object space of the shape instance.
|
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void | computeObjectSpaceRay (SoRayPickAction *action, const SbMatrix &matrix) |
|
virtual SoDetail * | createTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp) |
| These methods are called during picking to create details representing extra info about a pick intersection.
|
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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 *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3) |
| These methods invoke whatever callbacks are registered with the primitive generation procedures.
|
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void | invokeLineSegmentCallbacks (SoAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2) |
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void | invokePointCallbacks (SoAction *action, const SoPrimitiveVertex *v) |
|
void | beginShape (SoAction *action, TriangleShape shapeType, SoFaceDetail *faceDetail=NULL) |
| These methods can be used by subclasses to generate triangles more easily when those triangles are part of a larger structure, such as a triangle strip, triangle fan, or triangulated polygon, according to the TriangleShape enumerated type.
|
|
void | shapeVertex (const SoPrimitiveVertex *v) |
|
void | endShape () |
|
virtual | ~SoShape () |
|
void | GLRenderBoundingBox (SoGLRenderAction *action) |
| Applies GLRender action to the bounding box surrounding the shape.
|
|
| SoNode () |
| Constructor, destructor.
|
|
virtual | ~SoNode () |
|
| SoFieldContainer () |
|
| ~SoFieldContainer () |
|
virtual bool | readInstance (SoInput *in, unsigned short flags) |
| Reads stuff into instance. Returns FALSE on error.
|
|
| SoBase () |
| Constructor is protected - this is an abstract class.
|
|
virtual | ~SoBase () |
| Virtual destructor so that subclasses are deleted properly.
|
|
virtual void | destroy () |
| Actually deletes an instance.
|
|
bool | hasMultipleWriteRefs () const |
| Returns TRUE if the instance has multiple write references.
|
|
bool | writeHeader (SoOutput *out, bool isGroup, bool isEngine) const |
| Writes a header (name, open brace) or footer (close brace) to file defined by SoOutput.
|
|
void | writeFooter (SoOutput *out) const |
|
virtual const char * | getFileFormatName () const |
| Unknown nodes and engines write a different name for themselves than their typeId; this virtual method lets them do that (by default the typeId name is returned)
|
|
virtual bool | readInstance (SoInput *in, unsigned short flags)=0 |
| Reads stuff into instance of subclass.
|
|
This node is the abstract base class for all vertex-based shape (geometry) nodes. It is used as a repository for convenience functions for subclasses and to provide a type identifier to make it easy to determine whether a shape is vertex-based. It contains one public field, the SoVertexProperty field.
All subclasses of this node draw objects constructed from vertices. If the vertexProperty field is non-null and there are coordinates in the associated vertex property node, then those coordinates are used. Otherwise the objects are drawn using the current coordinates in the state. The coordinates of the shape are transformed by the current transformation matrix and are drawn with the current light model and drawing style.
Subclasses that construct polygons from vertices may not render or pick correctly if any of their polygons are self-intersecting or non-planar.
All vertex shape subclasses use the bounding box of the shape to determine default texture coordinates. The longest dimension of the bounding box defines the S coordinates, and the next longest defines the T coordinates. The value of the S coordinate ranges from 0 to 1, from one end of the bounding box to the other. The T coordinate ranges between 0 and the ratio of the second greatest dimension of the bounding box to the greatest dimension.
When a vertex-based shape is picked with an SoRayPickAction, a detail is always returned. If the shape is composed of faces (such as SoFaceSet or SoTriangleStripSet), an SoFaceDetail is returned. If the shape is composed of line segments (such as SoLineSet), an SoLineDetail is returned. If the shape is composed of points (such as SoPointSet), an SoPointDetail is returned. Note that the type of detail returned is not affected by the current drawing style.
Similarly, each class of vertex-based shape invokes appropriate callbacks if those callbacks are registered with the SoCallbackAction. Shapes made of faces invoke triangle callbacks for each generated triangle. (Faces may be triangulated to create these triangles.) Shapes made of line segments invoke line segment callbacks for each segment, and shapes made of points invoke point callbacks.
The subclass SoIndexedShape is a base class for vertex-based shapes that index into the current set of coordinates. The subclass SoNonIndexedShape is a base class for vertex-based shapes that use the current coordinates in order.
- See Also
- SoIndexedShape, SoNonIndexedShape, SoVertexProperty
Definition at line 135 of file SoVertexShape.h.