SoDirectionalLightDragger(3IV)

NAME
SoDirectionalLightDragger — directional icon you rotate and translate by dragging with the mouse

INHERITS FROM
SoBase > SoFieldContainer > SoNode > SoBaseKit > SoInteractionKit > SoDragger > SoDirectionalLightDragger

SYNOPSIS
#include <Inventor/draggers/SoDirectionalLightDragger.h>

Fields from class SoDirectionalLightDragger:

SoSFRotation
rotation
SoSFVec3f
translation

Fields from class SoDragger:

SoSFBool
isActive

Fields from class SoInteractionKit:

SoSFEnum
renderCaching
SoSFEnum
boundingBoxCaching
SoSFEnum
renderCulling
SoSFEnum
pickCulling

Parts from class SoBaseKit:

(SoNodeKitListPart)
callbackList

Methods from class SoDirectionalLightDragger:

SoDirectionalLightDragger()
static const SoNodekitCatalog *
getClassNodekitCatalog() const
static SoType
getClassTypeId()

Methods from class SoDragger:

void
addStartCallback(SoDraggerCB *f, void *userData = NULL)
void
removeStartCallback(SoDraggerCB *f, void *userData = NULL)
void
addMotionCallback(SoDraggerCB *f, void *userData = NULL)
void
removeMotionCallback(SoDraggerCB *f, void *userData = NULL)
void
addFinishCallback(SoDraggerCB *f, void *userData = NULL)
void
removeFinishCallback(SoDraggerCB *f, void *userData = NULL)
void
addValueChangedCallback(SoDraggerCB *f, void *userData = NULL)
void
removeValueChangedCallback(SoDraggerCB *f, void *userData = NULL)
SbBool
enableValueChangedCallbacks()
void
setMinGesture(int pixels)
int
getMinGesture() const
static void
setMinScale(float newMinScale)
static float
getMinScale()

Methods from class SoInteractionKit:

virtual SbBool
setPartAsPath(const SbName &partName, SoPath *surrogatePath )

Methods from class SoBaseKit:

virtual const SoNodekitCatalog *
getNodekitCatalog() const
virtual SoNode *
getPart(const SbName &partName, SbBool makeIfNeeded)
SbString
getPartString(const SoBase *part)
virtual SoNodeKitPath *
createPathToPart(const SbName &partName, SbBool makeIfNeeded, const SoPath *pathToExtend = NULL)
virtual SbBool
setPart(const SbName &partName, SoNode *newPart)
SbBool
set(char *partName, char *parameters)
SbBool
set(char *nameValuePairs)
static SbBool
isSearchingChildren()
static void
setSearchingChildren(SbBool newVal)

Methods from class SoNode:

void
setOverride(SbBool state)
SbBool
isOverride() const
SoNode *
copy(SbBool copyConnections = FALSE) const
virtual SbBool
affectsState() const
static SoNode *
getByName(const SbName &name)
static int
getByName(const SbName &name, SoNodeList &list)

Methods from class SoFieldContainer:

void
setToDefaults()
SbBool
hasDefaultValues() const
SbBool
fieldsAreEqual(const SoFieldContainer *fc) const
void
copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)
void
get(SbString &fieldDataString)
virtual int
getFields(SoFieldList &resultList) const
virtual SoField *
getField(const SbName &fieldName) const
SbBool
getFieldName(const SoField *field, SbName &fieldName) const
SbBool
isNotifyEnabled() const
SbBool
enableNotify(SbBool flag)

Methods from class SoBase:

void
ref()
void
unref() const
void
unrefNoDelete() const
void
touch()
virtual SoType
getTypeId() const
SbBool
isOfType(SoType type) const
virtual void
setName(const SbName &name)
virtual SbName
getName() const

Macros from class SoBaseKit:

SO_GET_PART(kit, partName, partClass)

SO_CHECK_PART(kit, partName, partClass)

DESCRIPTION
SoDirectionalLightDragger is a composite dragger. It looks like a sun with a large arrow coming out of it. The arrow can be rotated about the sun by dragging with the mouse; its orientation is given by the rotation field. You can also drag the sun (and the arrow with it) through 3-space. The location is stored in the translation field.

The dragger uses an SoRotateSphericalDragger for changing the rotation. Instead of using the default spherical geometry, this dragger uses an arrow shape.

The sun is an SoDragPointDragger. Dragging it edits the translation field; conversely, if you change the translation field the sun will move to that new location, bringing the arrow with it. The sun looks and behaves just like the sun in an SoPointLightDragger, as does the material part. See the SoPointLightDragger man page for details.

Remember: This is not a light source! It just looks like one. If you want to move a light with this dragger, you can either:

[a] Use an SoDirectionalLightManip, which is subclassed from SoLight. It creates an SoDirectionalLightDragger and uses it as the interface to change the direction of its light source (see the SoDirectionalLightManip man page). The manipulator also edits the material part of this dragger to match the color of light the manipulator is producing. However, the directional light manipulator will ignore the translation field, because a directional light has no location or translation field. So in this case the translation dragger merely allows you to move the physical arrow to wherever you'd like it to be.

[b] Put an SoTransform under an SoTransformSeparator. Add the SoDirectionalLight as the next child. Use a field-to-field connection between the rotation fields of this dragger and the transform node to synchronize the light with this dragger.

[c] Use engines to connect the rotation field of this dragger to the direction field of an SoDirectionalLight. Use the rotation as input to an SoComposeMatrix engine. Then, use an SoTransformVec3f engine to apply that matrix to (0,0,-1), the default light direction.

You can change the parts in any instance of this dragger using setPart(). The default part geometries are defined as resources for this SoDirectionalLightDragger class. They are detailed in the Dragger Resources section of the online reference page for this class. You can make your program use different default resources for the parts by copying the file /usr/share/data/draggerDefaults/directionalLightDragger.iv into your own directory, editing the file, and then setting the environment variable SO_DRAGGER_DIR to be a path to that directory.

FIELDS
SoSFRotation
rotation
Orientation of the rotating part (an arrow by default).

SoSFVec3f
translation
Position of the origin of the directional light dragger.

METHODS

SoDirectionalLightDragger()
Constructor.

static const SoNodekitCatalog *
getClassNodekitCatalog() const
Returns an SoNodekitCatalog for this class

static SoType
getClassTypeId()
Returns type identifier for this class.

CATALOG PARTS
All parts
 |  |  | NULL by
Part Name | Part Type | Default Type | Default
callbackList | NodeKitListPart | -- | yes
material | Material | -- | yes
translatorRotInv | Rotation | -- | yes
translator | DragPointDragger | -- | yes
rotator | RotateSphericalDragger | -- | yes
Extra information for list parts from above table
Part Name | Container Type | Permissible Types
callbackList | Separator | Callback, EventCallback

DRAGGER RESOURCES
.in 0n+.5i
Resource:    directionalLightRotatorRotator
.in 0n+.5i
Part:    rotator.rotator
Appearance:    white arrow that goes through the sun
Description:    picking this begins rotation of the arrow about the sun-shape

.in 0n+.5i
Resource:    directionalLightRotatorRotatorActive
.in 0n+.5i
Part:    rotator.rotatorActive
Appearance:    yellow arrow that goes through the sun
Description:    displayed while the arrow is being rotated

.in 0n+.5i
Resource:    directionalLightRotatorFeedback
.in 0n+.5i
Part:    rotator.feedback
Appearance:    empty Separator
Description:    this disables display of the axes that a rotateSpherical dragger uses by default

.in 0n+.5i
Resource:    directionalLightRotatorFeedbackActive
.in 0n+.5i
Part:    rotator.feedbackActive
Appearance:    empty Separator
Description:    this disables display of the axes that a rotateSpherical dragger uses by default

.in 0n+.5i
Resource:    directionalLightOverallMaterial
.in 0n+.5i
Part:    material
Appearance:    white. half strength emissive, half strength diffuse
Description:    sets material for the sun shape when stationary. Resource for the moving sun, directionalLightTranslatorPlaneTranslatorActive, contains a yellow material for highlighting.

.in 0n+.5i
Resource:    directionalLightTranslatorPlaneTranslator
.in 0n+.5i
Parts:    translator.yzTranslator.translator
    translator.xzTranslator.translator
    translator.xyTranslator.translator
Appearance:    sun shape with no material
Description:    picking these parts initiates dragging by the yz, xz, and xy planar draggers respectively.

.in 0n+.5i
Resource:    directionalLightTranslatorPlaneTranslatorActive
.in 0n+.5i
Parts:    translator.yzTranslator.translatorActive
    translator.xzTranslator.translatorActive
    translator.xyTranslator.translatorActive
Appearance:    yellow sun shape
Description:    shown during planar dragging in the yz, xz, and xy planes respectively.

.in 0n+.5i
Resource:    directionalLightTranslatorLineTranslator
.in 0n+.5i
Parts:    translator.xTranslator.translator
    translator.yTranslator.translator
    translator.zTranslator.translator
Appearance:    white cylinder
Description:    picking these parts initiates dragging in the x, y, and z linear draggers respectively.

.in 0n+.5i
Resource:    directionalLightTranslatorLineTranslatorActive
.in 0n+.5i
Parts:    translator.xTranslator.translatorActive
    translator.yTranslator.translatorActive
    translator.zTranslator.translatorActive
Appearance:    yellow cylinder
Description:    shown during linear dragging in the x, y, and z directions respectively.

FILE FORMAT/DEFAULTS
DirectionalLightDragger {
renderCaching	AUTO
boundingBoxCaching	AUTO
renderCulling	AUTO
pickCulling	AUTO
isActive	FALSE
translation	0 0 0
rotation	0 0 1  0
callbackList	NULL
material	<directionalLightOverallMaterial resource>
translatorRotInv	NULL
translator	DragPointDragger {
}

rotator	RotateSphericalDragger {
}

rotator.rotator	<directionalLightRotatorRotator resource>
rotator.rotatorActive	<directionalLightRotatorRotatorActive resource>
rotator.feedback	<directionalLightRotatorFeedback resource>
rotator.feedbackActive	<directionalLightRotatorFeedbackActive resource>
translator.yzTranslator.translator	<directionalLightTranslatorPlaneTranslator resource>
translator.xzTranslator.translator	<directionalLightTranslatorPlaneTranslator resource>
translator.xyTranslator.translator	<directionalLightTranslatorPlaneTranslator resource>
translator.yzTranslator.translatorActive	<directionalLightTranslatorPlaneTranslatorActive resource>
translator.xzTranslator.translatorActive	<directionalLightTranslatorPlaneTranslatorActive resource>
translator.xyTranslator.translatorActive	<directionalLightTranslatorPlaneTranslatorActive resource>
translator.xTranslator.translator	<directionalLightTranslatorLineTranslator resource>
translator.yTranslator.translator	<directionalLightTranslatorLineTranslator resource>
translator.zTranslator.translator	<directionalLightTranslatorLineTranslator resource>
translator.xTranslator.translatorActive	<directionalLightTranslatorLineTranslatorActive resource>
translator.yTranslator.translatorActive	<directionalLightTranslatorLineTranslatorActive resource>
translator.zTranslator.translatorActive	<directionalLightTranslatorLineTranslatorActive resource>
}

SEE ALSO
SoInteractionKit, SoDragger, SoCenterballDragger, SoDragPointDragger, SoHandleBoxDragger, SoJackDragger, SoPointLightDragger, SoRotateCylindricalDragger, SoRotateDiscDragger, SoRotateSphericalDragger, SoScale1Dragger, SoScale2Dragger, SoScale2UniformDragger, SoScaleUniformDragger, SoSpotLightDragger, SoTabBoxDragger, SoTabPlaneDragger, SoTrackballDragger, SoTransformBoxDragger, SoTransformerDragger, SoTranslate1Dragger, SoTranslate2Dragger