sospotlightdragger(3)
NAME
SoSpotLightDragger
SYNOPSIS
#include <Inventor/draggers/SoSpotLightDragger.h> Inherits SoDragger.
Detailed Description
The SoSpotLightDragger class provides interactive geometry for
manipulating a spotlight.
Here's how the dragger looks with its default geometry in the inactive
state:.
This dragger is well suited for setting up the fields of a SoSpotLight
node, as it provides geometry for the end-user to interact with a
directional vector for the spotlight, to set up it's position and to
control the cut-off angle for the 'lampshade' around the lightsource.
Note that there is one aspect of SoSpotLight nodes that can not be controlled with this dragger: the SoSpotLight::dropOffRate field.
The Coin library includes a manipulator class, SoSpotLightManip, which
wraps the functionality provided by this class inside the necessary
mechanisms for connecting it to SoSpotLight node instances in a
scenegraph.
- See also:
- SoSpotLightManip, SoSpotLight
- SoDirectionalLightDragger, SoPointLightDragger
- Public Member Functions
- virtual SoType getTypeId (void) const
virtual const SoNodekitCatalog * getNodekitCatalog (void) const SoSpotLightDragger (void) - Static Public Member Functions
- static SoType getClassTypeId (void) static const SoNodekitCatalog * getClassNodekitCatalog (void) static void initClass (void)
- Public Attributes
- SoSFRotation rotation
SoSFVec3f translation
SoSFFloat angle - Protected Member Functions
- virtual const SoFieldData * getFieldData (void) const
~SoSpotLightDragger ()
virtual SbBool setUpConnections (SbBool onoff, SbBool doitalways=0) virtual void setDefaultOnNonWritingFields (void) void dragStart (void)
void drag (void)
void dragFinish (void)
void setBeamScaleFromAngle (float beamangle) - Static Protected Member Functions
- static const SoFieldData ** getFieldDataPtr (void) static const SoNodekitCatalog ** getClassNodekitCatalogPtr (void) static void startCB (void *f, SoDragger *d) static void motionCB (void *f, SoDragger *d) static void doneCB (void *f, SoDragger *d) static void fieldSensorCB (void *f, SoSensor *s) static void valueChangedCB (void *f, SoDragger *d)
- Protected Attributes
- SoSFNode beam
SoSFNode beamActive
SoSFNode beamPlacement
SoSFNode beamScale
SoSFNode beamSep
SoSFNode beamSwitch
SoSFNode material
SoSFNode rotator
SoSFNode translator
SoSFNode translatorRotInv SoSFNode translatorSep
SoFieldSensor * rotFieldSensor SoFieldSensor * translFieldSensor SoFieldSensor * angleFieldSensor SbPlaneProjector * planeProj
Constructor & Destructor Documentation
- SoSpotLightDragger::SoSpotLightDragger (void)
- Default constructor, sets up the dragger nodekit catalog with the
interaction and feedback geometry. - Node kit structure (new entries versus parent class marked with arrow
prefix):
CLASS SoSpotLightDragger
-->"this""callbackList"
"topSeparator""motionMatrix"--> "material"
--> "translatorSep"
--> "translatorRotInv"
--> "translator"
--> "rotator"
--> "beamSep"
--> "beamPlacement"
--> "beamScale"
--> "beamSwitch"
--> "beam"
--> "beamActive""geomSeparator".fi(See SoBaseKit::printDiagram() for information about the output formatting.)Detailed information on catalog parts:
CLASS SoSpotLightDragger
PVT "this", SoSpotLightDragger --"callbackList", SoNodeKitListPart [ SoCallback, SoEventCallback ]PVT "topSeparator", SoSeparator --PVT "motionMatrix", SoMatrixTransform --"material", SoMaterial --PVT "translatorSep", SoSeparator --PVT "translatorRotInv", SoRotation --"translator", SoDragPointDragger --"rotator", SoRotateSphericalDragger --PVT "beamSep", SoSeparator --"beamPlacement", SoTranslation --"beamScale", SoScale --PVT "beamSwitch", SoSwitch --"beam", SoSeparator --"beamActive", SoSeparator --PVT "geomSeparator", SoSeparator --.fi(See SoBaseKit::printTable() for information about the output formatting.) - SoSpotLightDragger::~SoSpotLightDragger () [protected]
- Protected destructor.
- (Dragger classes are derived from SoBase, so they are reference counted and automatically destroyed when their reference count goes to 0.)
Member Function Documentation
- SoType SoSpotLightDragger::getClassTypeId (void) [static]
- This static method returns the SoType object associated with objects of this class.
- Reimplemented from SoDragger.
- SoType SoSpotLightDragger::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}
else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {SoGroup * group = (SoGroup *)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 SoDragger.
- const SoFieldData ** SoSpotLightDragger::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. - Reimplemented from SoDragger.
- const SoFieldData * SoSpotLightDragger::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 SoDragger.
- const SoNodekitCatalog * SoSpotLightDragger::getClassNodekitCatalog (void)
- [static]
Returns the nodekit catalog which defines the layout of this class'
kit. - Reimplemented from SoDragger.
- const SoNodekitCatalog * SoSpotLightDragger::getNodekitCatalog (void) const
- [virtual]
Returns the nodekit catalog which defines the layout of this class'
kit. - Reimplemented from SoDragger.
- const SoNodekitCatalog ** SoSpotLightDragger::getClassNodekitCatalogPtr
- (void) [static, protected]
Returns the pointer to the pointer of the nodekit catalog for this
class. - Reimplemented from SoDragger.
- void SoSpotLightDragger::initClass (void) [static]
- Initializes type system for this dragger class.
- Application programmers should usually not have to invoke this method, see documentation of SoInteraction::init().
- Reimplemented from SoDragger.
- SbBool SoSpotLightDragger::setUpConnections (SbBool onoff, SbBool
- doitalways = 0) [protected, virtual] Sets up all internal connections for instances of this class.
- (This method will usually not be of interest to the application
programmer, unless you want to extend the library with new custom
nodekits or dragger classes. If so, see the SoBaseKit class documentation.) - Reimplemented from SoInteractionKit.
- void SoSpotLightDragger::setDefaultOnNonWritingFields (void) [protected,
- virtual]
(Be aware that this method is unlikely to be of interest to the
application programmer who does not want to extend the library with new custom nodekits or draggers. If you indeed are writing extensions, see the information in the SoBaseKit class documentation.) - This is a virtual method, and the code in it should call
SoField::setDefault() with argument TRUE on part fields that should not be written upon scenegraph export operations. - This is typically done when:
- 1. field value is NULL and part is NULL by default
- 2. it is a leaf SoGroup or SoSeparator node with no children
- 3. it is a leaf listpart with no children and an SoGroup or SoSeparator container
- 4. it is a non-leaf part and it's of SoGroup type and all fields are at their default values
- Subclasses should usually override this to do additional settings for
new member fields. From the subclass, do remember to call 'upwards' to your superclass' setDefaultOnNonWritingFields() method. Reimplemented from SoDragger. - void SoSpotLightDragger::startCB (void * f, SoDragger * d) [static,
protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. - void SoSpotLightDragger::motionCB (void * f, SoDragger * d) [static,
protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. - void SoSpotLightDragger::doneCB (void * f, SoDragger * d) [static,
protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. - void SoSpotLightDragger::fieldSensorCB (void * d, SoSensor * s) [static,
protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. Reimplemented from SoInteractionKit. - void SoSpotLightDragger::valueChangedCB (void * f, SoDragger * d) [static,
protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. - void SoSpotLightDragger::dragStart (void) [protected] 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.
- void SoSpotLightDragger::drag (void) [protected] 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.
- void SoSpotLightDragger::dragFinish (void) [protected] 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.
- void SoSpotLightDragger::setBeamScaleFromAngle (float beamangle)
[protected]
Scales the geometry representing the 'lampshade' around the lightsource to represent the given beamangle.
Member Data Documentation
- SoSFRotation SoSpotLightDragger::rotation
- This field is continuously updated to contain the rotation of the
current direction vector. The application programmer will typically
connect this to the rotation field of a SoSpotLight node (unless using the SoSpotLightManip class, where this is taken care of automatically). It may also of course be connected to any other rotation field
controlling the direction of scenegraph geometry, it does not have to
part of a SoSpotLight node specifically. - SoSFVec3f SoSpotLightDragger::translation
Continuously updated to contain the current translation from the
dragger's local origo position. - SoSFFloat SoSpotLightDragger::angle
The cut-off angle for the 'lampshade' around the lightsource.
Typically connected to a SoSpotLight::cutOffAngle field. - SoFieldSensor * SoSpotLightDragger::rotFieldSensor [protected] This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
- SoFieldSensor * SoSpotLightDragger::translFieldSensor [protected] This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
- SoFieldSensor * SoSpotLightDragger::angleFieldSensor [protected] This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
- SbPlaneProjector * SoSpotLightDragger::planeProj [protected] This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
Author
- Generated automatically by Doxygen for Coin from the source code.