Library Functions Manual

NAME¶

SoClipPlaneManip - The SoClipPlaneManip class is used to manipulate clip planes.

SYNOPSIS¶

#include <Inventor/manips/SoClipPlaneManip.h>

Inherits SoClipPlane.

Public Member Functions¶

virtual SoType getTypeId (void) const
SoClipPlaneManip (void)
SoDragger * getDragger (void)
void setValue (const SbBox3f &box, const SbVec3f &planenormal, float draggerscalefactor)
SbBool replaceNode (SoPath *p)
SbBool replaceManip (SoPath *p, SoClipPlane *newone) const
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void handleEvent (SoHandleEventAction *action)
virtual void pick (SoPickAction *action)
virtual void search (SoSearchAction *action)
virtual SoChildList * getChildren (void) const

Public Member Functions inherited from SoClipPlane
SoClipPlane (void)

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 SbBool affectsState (void) const
virtual void GLRenderBelowPath (SoGLRenderAction *action)
virtual void GLRenderInPath (SoGLRenderAction *action)
virtual void GLRenderOffPath (SoGLRenderAction *action)
virtual void rayPick (SoRayPickAction *action)
virtual void write (SoWriteAction *action)
virtual void audioRender (SoAudioRenderAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual void grabEventsSetup (void)
virtual void grabEventsCleanup (void)
virtual void startNotify (void)
virtual void notify (SoNotList *l)
uint32_t getNodeId (void) const
virtual void writeInstance (SoOutput *out)
virtual SoNode * addToCopyDict (void) const
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
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 SoClipPlane
static SoType getClassTypeId (void)
static void initClass (void)

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)
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)

Static Public Member Functions 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)

Static Public Member Functions 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¶

SoSFVec3f draggerPosition

Public Attributes inherited from SoClipPlane
SoSFPlane plane
SoSFBool on

Protected Member Functions¶

virtual const SoFieldData * getFieldData (void) const
virtual ~SoClipPlaneManip (void)
void setDragger (SoDragger *newdragger)
virtual void copyContents (const SoFieldContainer *fromfc, SbBool copyconnections)

Protected Member Functions inherited from SoClipPlane
virtual ~SoClipPlane ()

Protected Member Functions inherited from SoNode
SoNode (void)
virtual ~SoNode ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)

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

Static Protected Member Functions¶

static const SoFieldData ** getFieldDataPtr (void)
static void valueChangedCB (void *f, SoDragger *d)
static void fieldSensorCB (void *f, SoSensor *d)
static void transferFieldValues (const SoClipPlane *from, SoClipPlane *to)

Static Protected Member Functions inherited from SoClipPlane
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)

Protected Attributes¶

SoFieldSensor * planeFieldSensor
SoFieldSensor * onFieldSensor
SoFieldSensor * draggerPosFieldSensor
SoChildList * children

Protected Attributes inherited from SoNode
uint32_t uniqueId

Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn

Additional Inherited Members¶

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 }

Protected Types inherited from SoBase
enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }

Static Protected Attributes inherited from SoNode
static uint32_t nextUniqueId = 1
static int nextActionMethodIndex = 0

Detailed Description¶

The SoClipPlaneManip class is used to manipulate clip planes.

A manipulator is used by replacing the node you want to edit in the graph with the manipulator. Draggers are used to manipulate the node. When manipulation is finished, the node is put back into the graph, replacing the manipulator.

An SoJackDragger is used by instances of this manipulator class as the default dragger when manipulating SoClipPlane nodes. See the documentation of SoJackDragger for details about how to control the manipulator.

An 'action shot' of the SoClipPlaneManip:

This manipulator is an extension versus the original SGI Inventor v2.1 API. In addition to being a Coin extension, it is also present in TGS' Inventor implementation (with the same API).

Please not that this manipulator is a bit different than the other manipulators, since it will not automatically scale and translate the dragger to surround the geometry. The setValue() function must be used to initialize the manipulator/dragger. Below you'll find some example code that loads an Inventor file and adds a clip plane manipulator.

#include <Inventor/Qt/SoQt.h>
#include <Inventor/Qt/viewers/SoQtExaminerViewer.h>
#include <Inventor/SoDB.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/actions/SoGetBoundingBoxAction.h>
#include <Inventor/SoInput.h>
#include <Inventor/manips/SoClipPlaneManip.h>
#include <assert.h>
// *************************************************************************
int
main(int argc, char ** argv)
{


  assert(argc >= 2);


  QWidget * window = SoQt::init(argv[0]);


  SoQtExaminerViewer * ex = new SoQtExaminerViewer( window );


  ex->setBackgroundColor(SbColor(0.1f, 0.3f, 0.5f));


  SoInput input;


  SbBool ok = input.openFile(argv[1]);


  if (!ok) {


    fprintf(stderr,"Unable to open file.\n");


    return -1;


  }


  SoSeparator * root = SoDB::readAll(&input); 


  if (!root) {


    fprintf(stderr,"Unable to read file.\n");


    return -1;


  }


  root->ref();


  SoGetBoundingBoxAction ba(ex->getViewportRegion());


  ba.apply(root);


  SbBox3f box = ba.getBoundingBox();


  SoClipPlaneManip * manip = new SoClipPlaneManip;


  manip->setValue(box, SbVec3f(1.0f, 0.0f, 0.0f), 1.02f);


  root->insertChild(manip, 0);


  ex->setSceneGraph(root);


  ex->show();


  SoQt::show( window );


  SoQt::mainLoop();


  delete ex;


  root->unref();


  return 0;
}

Since

TGS Inventor 2.5

Coin 1.0

Constructor & Destructor Documentation¶

SoClipPlaneManip::SoClipPlaneManip (void)¶

An SoJackDragger is set up here as the internal dragger used for manipulation of an SoClipPlane node.

SoClipPlaneManip::~SoClipPlaneManip (void) [protected], [virtual]¶

Destructor.

Member Function Documentation¶

SoType SoClipPlaneManip::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


  }
}

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 SoClipPlane.

const SoFieldData * SoClipPlaneManip::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 SoClipPlane.

SoDragger * SoClipPlaneManip::getDragger (void)¶

Returns pointer to dragger used for interaction.

void SoClipPlaneManip::setValue (const SbBox3f & box, const SbVec3f & planenormal, float draggerscalefactor)¶

Sets the clip plane based on the center of box and normal. The size of box is used as a scale factor to the dragger, multiplied with draggerscalefactor.

SbBool SoClipPlaneManip::replaceNode (SoPath * path)¶

Replaces the node specified by path with this manipulator. The manipulator will copy the field data from the node, to make it affect the state in the same way as the node.

SbBool SoClipPlaneManip::replaceManip (SoPath * path, SoClipPlane * newone) const¶

Replaces this manipulator from the position specified by path with newnode. If newnode is NULL, an SoClipPlane will be created for you.

void SoClipPlaneManip::doAction (SoAction * action) [virtual]¶

This function performs the typical operation of a node for any action.

Reimplemented from SoClipPlane.

void SoClipPlaneManip::callback (SoCallbackAction * action) [virtual]¶

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoClipPlane.

void SoClipPlaneManip::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.

Reimplemented from SoClipPlane.

void SoClipPlaneManip::getBoundingBox (SoGetBoundingBoxAction * action) [virtual]¶

Action method for the SoGetBoundingBoxAction.

Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node.

Nodes influencing how geometry nodes calculates their bounding box also overrides this method to change the relevant state variables.

Reimplemented from SoNode.

void SoClipPlaneManip::getMatrix (SoGetMatrixAction * action) [virtual]¶

Action method for SoGetMatrixAction.

Updates action by accumulating with the transformation matrix of this node (if any).

Reimplemented from SoNode.

void SoClipPlaneManip::handleEvent (SoHandleEventAction * action) [virtual]¶

Action method for SoHandleEventAction.

Inspects the event data from action, and processes it if it is something which this node should react to.

Nodes influencing relevant state variables for how event handling is done also overrides this method.

Reimplemented from SoNode.

void SoClipPlaneManip::pick (SoPickAction * action) [virtual]¶

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoClipPlane.

void SoClipPlaneManip::search (SoSearchAction * action) [virtual]¶

Action method for SoSearchAction.

Compares the search criteria from the action to see if this node is a match. Searching is done by matching up all criteria set up in the SoSearchAction -- if any of the requested criteria is a miss, the search is not deemed successful for the node.

See also

SoSearchAction

Reimplemented from SoNode.

SoChildList * SoClipPlaneManip::getChildren (void) const [virtual]¶

Returns the children of this node.

Reimplemented from SoNode.

void SoClipPlaneManip::setDragger (SoDragger * newdragger) [protected]¶

Sets a dragger to use for this manipulator. The default dragger is an SoJackDragger.

void SoClipPlaneManip::copyContents (const SoFieldContainer * from, SbBool copyconnections) [protected], [virtual]¶

Makes a deep copy of all data of from into this instance, except external scenegraph references if copyconnections is FALSE.

This is the protected method that should be overridden by extension node / engine / dragger / whatever subclasses which needs to account for internal data that are not handled automatically.

For copying nodes from application code, you should not invoke this function directly, but rather call the SoNode::copy() function:

SoNode * mynewnode = templatenode->copy();

The same also goes for engines.

Make sure that when you override the copyContents() method in your extension class that you also make it call upwards to it's parent superclass in the inheritance hierarchy, as copyContents() in for instance SoNode and SoFieldContainer does important work. It should go something like this:

void
MyCoinExtensionNode::copyContents(const SoFieldContainer * from,


                                  SbBool copyconnections)
{


  // let parent superclasses do their thing (copy fields, copy


  // instance name, etc etc)


  SoNode::copyContents(from, copyconnections);


  // [..then copy internal data..]
}

Reimplemented from SoNode.