SoVRMLPlaneSensor(3)

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

✨ NAME ✨

SoVRMLPlaneSensor — the class that maps pointer motion into object space translations. fr fr, that's its whole thing. It's from the Coin manual, section 3. 🫶

🌸 SYNOPSIS 🌸

#include <Inventor/VRMLnodes/SoVRMLPlaneSensor>

Inherits SoVRMLDragSensor. 💅

💖 Public Member Functions 💖

The ones this class brings to the table itself:

  • virtual SoType getTypeId (void) const
  • SoVRMLPlaneSensor (void)

🦋 Public Member Functions inherited from SoVRMLDragSensor

  • virtual void handleEvent (SoHandleEventAction *action)

🦋 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 doAction (SoAction *action)
  • virtual void GLRender (SoGLRenderAction *action)
  • virtual void GLRenderBelowPath (SoGLRenderAction *action)
  • virtual void GLRenderInPath (SoGLRenderAction *action)
  • virtual void GLRenderOffPath (SoGLRenderAction *action)
  • virtual void callback (SoCallbackAction *action)
  • virtual void getBoundingBox (SoGetBoundingBoxAction *action)
  • virtual void getMatrix (SoGetMatrixAction *action)
  • virtual void pick (SoPickAction *action)
  • virtual void rayPick (SoRayPickAction *action)
  • virtual void search (SoSearchAction *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)
  • 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. yep, it's doing a vibe check on the type 🫶
  • 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 SoVRMLDragSensor

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

💜 Static Public Member Functions inherited from SoVRMLSensor

  • 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) — sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system. it's the little setup ritual, no cap 🎀
  • 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 🔥

  • SoSFVec2f minPosition
  • SoSFVec2f maxPosition
  • SoSFVec3f offset
  • SoSFVec3f translation_changed

🌈 Public Attributes inherited from SoVRMLDragSensor

  • SoSFVec3f trackPoint_changed
  • SoSFBool autoOffset

🌈 Public Attributes inherited from SoVRMLSensor

  • SoSFBool isActive
  • SoSFBool enabled

🎀 Protected Member Functions 🎀

  • virtual const SoFieldData * getFieldData (void) const
  • virtual SbBool dragStart (void)
  • virtual void drag (void)
  • virtual void dragFinish (void)
  • virtual ~SoVRMLPlaneSensor ()

🧚 Protected Member Functions inherited from SoVRMLDragSensor

  • SoVRMLDragSensor (void)
  • virtual ~SoVRMLDragSensor ()
  • const SbVec3f & getLocalStartingPoint (void) const
  • const SbMatrix & getLocalToWorldMatrix (void) const
  • const SbMatrix & getWorldToLocalMatrix (void) const
  • const SbViewVolume & getViewVolume (void) const
  • const SbVec2f & getNormalizedLocaterPosition (void) const

🧚 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
  • virtual SoNotRec createNotRec (void)

🍓 Static Protected Member Functions 🍓

  • static const SoFieldData ** getFieldDataPtr (void)

👑 Static Protected Member Functions inherited from SoVRMLDragSensor

  • static const SoFieldData ** getFieldDataPtr (void)

👑 Static Protected Member Functions inherited from SoVRMLSensor

  • 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 🦋

🌟 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

ok bestie that's part 1 and there is more coming so don't go anywhere 💅✨

✨ DETAILED DESCRIPTION ✨

Okay bestie, so the SoVRMLPlaneSensor class is literally the thing that takes your pointer motion and turns it into translations in object space. It's giving ✨motion-to-translation pipeline✨ and honestly? Iconic.

The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:

PlaneSensor {
  exposedField SFBool  autoOffset          TRUE
  exposedField SFBool  enabled             TRUE
  exposedField SFVec2f maxPosition         -1 -1     # (-,)
  exposedField SFVec2f minPosition         0 0       # (-,)
  exposedField SFVec3f offset              0 0 0     # (-,)
  eventOut     SFBool  isActive
  eventOut     SFVec3f trackPoint_changed
  eventOut     SFVec3f translation_changed
}

The PlaneSensor node maps pointing device motion into two-dimensional translation in a plane parallel to the Z=0 plane of the local coordinate system. And get this — the PlaneSensor node uses the descendent geometry of its parent node to determine whether it is liable to generate events. So it's checking its lineage, periodt. 👑

The enabled exposedField enables and disables the PlaneSensor. If enabled is TRUE, the sensor reacts appropriately to user events. If enabled is FALSE, the sensor does not track user input or send events. Like, it's off-off. Napping. 💤

If enabled receives a FALSE event and isActive is TRUE, the sensor becomes disabled and deactivated, and outputs an isActive FALSE event.

If enabled receives a TRUE event, the sensor is enabled and made ready for user activation. Bestie is awake and ready to slay. ✨

The PlaneSensor node generates events when the pointing device is activated while the pointer is indicating any descendent geometry nodes of the sensor's parent group. See 4.6.7.5, Activating and manipulating sensors (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.7.5), for details on using the pointing device to activate the PlaneSensor.

Upon activation of the pointing device (e.g., mouse button down) while indicating the sensor's geometry, an isActive TRUE event is sent. Pointer motion is mapped into relative translation in the tracking plane, (a plane parallel to the sensor's local Z=0 plane and coincident with the initial point of intersection). For each subsequent movement of the bearing, a translation_changed event is output which corresponds to the sum of the relative translation from the original intersection point to the intersection point of the new bearing in the plane plus the offset value. The sign of the translation is defined by the Z=0 plane of the sensor's coordinate system.

trackPoint_changed events reflect the unclamped drag position on the surface of this plane. When the pointing device is deactivated and autoOffset is TRUE, offset is set to the last translation_changed value and an offset_changed event is generated. More details are provided in 4.6.7.4, Drag sensors (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.7.4).

When the sensor generates an isActive TRUE event, it grabs all further motion events from the pointing device until it is deactivated and generates an isActive FALSE event. Other pointing-device sensors shall not generate events during this time. Motion of the pointing device while isActive is TRUE is referred to as a "drag". No stealing the spotlight, other sensors. 🚫

If a 2D pointing device is in use, isActive events typically reflect the state of the primary button associated with the device (i.e., isActive is TRUE when the primary button is pressed, and is FALSE when it is released).

If a 3D pointing device (e.g., wand) is in use, isActive events typically reflect whether the pointer is within or in contact with the sensor's geometry. Magic wand behavior fr fr 🪄

minPosition and maxPosition may be set to clamp translation_changed events to a range of values as measured from the origin of the Z=0 plane. If the X or Y component of minPosition is greater than the corresponding component of maxPosition, translation_changed events are not clamped in that dimension. If the X or Y component of minPosition is equal to the corresponding component of maxPosition, that component is constrained to the given value. This technique provides a way to implement a line sensor that maps dragging motion into a translation in one dimension. One-dimensional glow-up 💅

While the pointing device is activated and moved, trackPoint_changed and translation_changed events are sent. trackPoint_changed events represent the unclamped intersection points on the surface of the tracking plane. If the pointing device is dragged off of the tracking plane while activated (e.g., above horizon line), browsers may interpret this in a variety ways (e.g., clamp all values to the horizon). Each movement of the pointing device, while isActive is TRUE, generates trackPoint_changed and translation_changed events. Further information about this behaviour can be found in 4.6.7.3, Pointing-device sensors (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.7.3), 4.6.7.4, Drag sensors (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.7.4), and 4.6.7.5, Activating and manipulating sensors (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.7.5).

🎀 CONSTRUCTOR & DESTRUCTOR DOCUMENTATION 🎀

SoVRMLPlaneSensor::SoVRMLPlaneSensor (void )

Constructor. Baby's first sensor 🍼✨

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

Destructor. Saying bye bestie 💔

💅 MEMBER FUNCTION DOCUMENTATION 💅

SoType SoVRMLPlaneSensor::getClassTypeId (void ) [static]

This static method returns the SoType object associated with objects of this class.

SoType SoVRMLPlaneSensor::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.

Reimplemented from SoVRMLDragSensor.

const SoFieldData ** SoVRMLPlaneSensor::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.

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

const SoFieldData * SoVRMLPlaneSensor::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 SoVRMLDragSensor.

void SoVRMLPlaneSensor::initClass (void ) [static]

(No extra description given — it's just doing its little static setup thing 🫶)

SbBool SoVRMLPlaneSensor::dragStart (void ) [protected], [virtual]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Called when dragger is selected (picked) by the user.

Implements SoVRMLDragSensor.

void SoVRMLPlaneSensor::drag (void ) [protected], [virtual]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Called when user drags the mouse after picking the dragger.

Implements SoVRMLDragSensor.

void SoVRMLPlaneSensor::dragFinish (void ) [protected], [virtual]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Called when mouse button is released after picking and interacting with the dragger.

Implements SoVRMLDragSensor.

🦋 MEMBER DATA DOCUMENTATION 🦋

  • SoSFVec2f SoVRMLPlaneSensor::minPosition — The minimum position. Initial value is [0, 0].
  • SoSFVec2f SoVRMLPlaneSensor::maxPosition — The maximum position. Initial value is [-1, -1].
  • SoSFVec3f SoVRMLPlaneSensor::offset — Current position. Initial value is [0, 0, 0].
  • SoSFVec3f SoVRMLPlaneSensor::translation_changed — An eventOut that is sent during interaction.

👑 AUTHOR 👑

Generated automatically by Doxygen for Coin from the source code.

That's the whole page, bestie — no cap, every single detail made it through. 💖 This one's Version 4.0.10, dated Thu Jun 25 2026 00:00:00, and it lives at SoVRMLPlaneSensor(3). Go forth and drag responsibly. ✨🎀🦋

📦 where this page comes from