SoVRMLSensor(3)

NAME
SoVRMLSensor - The SoVRMLSensor class is an abstract superclass for VRML sensors.

SYNOPSIS

#include <Inventor/VRMLnodes/SoVRMLSensor.h>

Inherits SoNode.

Inherited by SoVRMLDragSensor.

  Public Member Functions
virtual SoType getTypeId (void) const

  Static Public Member Functions
static SoType getClassTypeId (void)
static void initClass (void)

  Public Attributes
SoSFBool isActive
SoSFBool enabled

  Protected Member Functions
virtual const SoFieldData * getFieldData (void) const

  Static Protected Member Functions
static const SoFieldData ** getFieldDataPtr (void)

  Additional Inherited Members

Detailed Description

The SoVRMLSensor class is an abstract superclass for VRML sensors.

Member Function Documentation

  SoType SoVRMLSensor::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.

Implements SoBase.

Reimplemented in SoVRMLDragSensor, SoVRMLSphereSensor, SoVRMLCylinderSensor, and SoVRMLPlaneSensor.

  const SoFieldData * SoVRMLSensor::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 SoFieldContainer.

Reimplemented in SoVRMLDragSensor, SoVRMLSphereSensor, SoVRMLCylinderSensor, and SoVRMLPlaneSensor.

Author

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