Provided by: inventor-doc_2.1.5-10-18_all 
NAME
SoCenterballDragger — striped ball you rotate and re-center by dragging with the mouse
INHERITS FROM
SoBase > SoFieldContainer > SoNode > SoBaseKit > SoInteractionKit > SoDragger >
SoCenterballDragger
SYNOPSIS
#include <Inventor/draggers/SoCenterballDragger.h>
Fields from class SoCenterballDragger:
SoSFRotation rotation
SoSFVec3f center
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 SoCenterballDragger:
SoCenterballDragger()
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
SoCenterballDragger is a composite dragger. Its shape is a sphere defined by three
intersecting circles. Where the circles intersect (at the ends of the x, y and z axes)
there are sets of small green crosshairs. Dragging a pair of crosshairs translates the
entire centerball within the plane of the crosshairs. The interface of the sphere and
circles is just like SoTrackballDragger. Dragging a circle rotates about a constrained
axis and dragging the areas between them rotates the sphere freely about the center. An
invisible but pickable sphere initiates the free-rotation dragging.
When you drag the crosshairs, the center field is updated; there is no translation field.
Dragging other parts of the centerball updates the rotation field. As with all draggers,
if you change the fields the dragger moves in response.
The draggers used for the crosshair parts are SoTranslate2Draggers, so pressing the
<Shift> key allows you to constrain motion to slide along either the local x axis or y
axis of that crosshair.. The direction is determined by your initial mouse gesture after
pressing the key. Releasing the key removes the constraint.
Remember: This is not an SoTransform! If you want to move other objects with this dragger,
you can either:
[a] Use an SoCenterballManip, which is subclassed from SoTransform. The manipulator
creates one of these draggers and uses it as the interface to edit the manipulator's
fields. (See the SoCenterballManip man page.)
[b] Use field-to-field connections to connect the fields of this dragger to those of any
SoTransformation node.
You can change the parts in any instance of this dragger using setPart(). The default part
geometries are defined as resources for this SoCenterballDragger 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/centerballDragger.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 centerball dragger.
SoSFVec3f center
Center of rotation and scale of the centerball dragger.
METHODS
SoCenterballDragger()
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 │
│translateToCenter MatrixTransform -- yes │
│surroundScale SurroundScale -- yes │
│antiSquish AntiSquish -- no │
│lightModel LightModel -- yes │
│XAxis Separator -- yes │
│YAxis Separator -- yes │
│ZAxis Separator -- yes │
│rotator RotateSphericalDragger -- yes │
│YRotator RotateCylindricalDragger -- yes │
│ZCenterChanger Translate2Dragger -- yes │
│ZRotator RotateCylindricalDragger -- yes │
│YCenterChanger Translate2Dragger -- yes │
│XCenterChanger Translate2Dragger -- yes │
│XRotator RotateCylindricalDragger -- 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: centerballRotator
.in 0n+.5i
Part: rotator.rotator
Appearance: Invisible but pickable sphere
Description: When picked, initiates free rotation about the center point. Slightly
smaller radius than the stripes, so you must pick between the stripes to
use it.
.in 0n+.5i
Resource: centerballRotatorActive
.in 0n+.5i
Part: rotator.rotatorActive
Appearance: Invisible sphere
Description: Displayed during unconstrained 3D rotation instead of centerballRotator.
.in 0n+.5i
Resource: centerballStripe
.in 0n+.5i
Parts: XRotator.rotator
YRotator.rotator
ZRotator.rotator
Appearance: White circle aligned with rotation axis.
Description: When picked, initiates constrained rotation. Each rotator rotates locally
about its Y axis. The centerball contains private transform parts that
orient the draggers along three different axes.
.in 0n+.5i
Resource: centerballStripeActive
.in 0n+.5i
Parts: XRotator.rotatorActive
YRotator.rotatorActive
ZRotator.rotatorActive
Appearance: White circle aligned with the rotation axis.
Description: Displayed during constrained rotation instead of the rotator part. The
centerball orients the draggers along three different axes.
.in 0n+.5i
Resource: centerballCenterChanger
.in 0n+.5i
Parts: XCenterChanger.translator
YCenterChanger.translator
ZCenterChanger.translator
Appearance: Two sets of small green crosshairs, one located at each intersection of
axis and ball.
Description: When picked, initiates 2D translation of ball through space. Edits the
center field, which becomes center for subsequent rotations. Each
translator works locally in its X-Y plane. The centerball contains
private transform parts that place the draggers along three different
axes.
.in 0n+.5i
Resource: centerballCenterChangerActive
.in 0n+.5i
Parts: XCenterChanger.translatorActive
YCenterChanger.translatorActive
ZCenterChanger.translatorActive
Appearance: Yellow version of centerballCenterChanger.
Description: Displayed during 2D translation instead of regular translator part. The
centerball places the draggers along three different axes.
.in 0n+.5i
Resource: centerballCenterXAxisFeedback
.in 0n+.5i
Parts: XCenterChanger.xAxisFeedback
YCenterChanger.xAxisFeedback
ZCenterChanger.xAxisFeedback
Appearance: Double-headed purple arrows, one located at each intersection of axis and
ball. Located atop X axis of crosshair.
Description: Only shown if dragger is moving and the axis is a permitted direction of
motion. When pressing <shift>, motion is constrained, and this is
displayed only if the primary motion is in the X direction of the child
dragger's local space. The centerball places the draggers along three
different axes; so not all of these parts aligns with the X axis in
centerball space.
.in 0n+.5i
Resource: centerballCenterYAxisFeedback
.in 0n+.5i
Parts: XCenterChanger.yAxisFeedback
YCenterChanger.yAxisFeedback
ZCenterChanger.yAxisFeedback
Appearance: Double-headed purple arrows, one located at each intersection of axis and
ball. Located atop Y axis of crosshair.
Description: Only shown if dragger is moving and the axis is a permitted direction of
motion. When pressing <shift>, motion is constrained, and this is
displayed only if the primary motion is in the Y direction of the child
dragger's local space. The centerball places the draggers along three
different axes; so not all of these parts aligns with the Y axis in
centerball space.
.in 0n+.5i
Resource: centerballXAxis
.in 0n+.5i
Part: XAxis
Appearance: Thin yellow line connecting left and right crosshairs.
Description: Feedback shown alone during rotation about X axis; displayed with
centerballYAxis and centerballZAxis while center is dragged.
.in 0n+.5i
Resource: centerballYAxis
.in 0n+.5i
Part: YAxis
Appearance: Thin yellow line connecting lower and upper crosshairs.
Description: Feedback shown alone during rotation about Y axis; displayed with
centerballXAxis and centerballZAxis while center is dragged.
.in 0n+.5i
Resource: centerballZAxis
.in 0n+.5i
Part: ZAxis
Appearance: Thin yellow line connecting near and far crosshairs.
Description: Feedback shown alone during rotation about Z axis; displayed with
centerballXAxis and centerballYAxis while center is dragged.
FILE FORMAT/DEFAULTS
CenterballDragger {
renderCaching AUTO
boundingBoxCaching AUTO
renderCulling AUTO
pickCulling AUTO
isActive FALSE
rotation 0 0 1 0
center 0 0 0
callbackList NULL
translateToCenter MatrixTransform {
matrix 1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1 }
surroundScale NULL
antiSquish AntiSquish {
sizing LONGEST_DIAGONAL }
lightModel LightModel {
model PHONG }
XAxis <centerballXAxis resource>
YAxis <centerballYAxis resource>
ZAxis <centerballZAxis resource>
rotator RotateSphericalDragger {
}
YRotator RotateCylindricalDragger {
}
ZCenterChanger Translate2Dragger {
}
ZRotator RotateCylindricalDragger {
}
YCenterChanger Translate2Dragger {
}
XCenterChanger Translate2Dragger {
}
XRotator RotateCylindricalDragger {
}
rotator.rotator <centerballRotator resource>
rotator.rotatorActive <centerballRotatorActive resource>
XRotator.rotator <centerballStripe resource>
YRotator.rotator <centerballStripe resource>
ZRotator.rotator <centerballStripe resource>
XRotator.rotatorActive <centerballStripeActive resource>
YRotator.rotatorActive <centerballStripeActive resource>
ZRotator.rotatorActive <centerballStripeActive resource>
XCenterChanger.translator <centerballCenterChanger resource>
YCenterChanger.translator <centerballCenterChanger resource>
ZCenterChanger.translator <centerballCenterChanger resource>
XCenterChanger.translatorActive <centerballCenterChangerActive resource>
YCenterChanger.translatorActive <centerballCenterChangerActive resource>
ZCenterChanger.translatorActive <centerballCenterChangerActive resource>
XCenterChanger.xAxisFeedback <centerballCenterXAxisFeedback resource>
YCenterChanger.xAxisFeedback <centerballCenterXAxisFeedback resource>
ZCenterChanger.xAxisFeedback <centerballCenterXAxisFeedback resource>
XCenterChanger.yAxisFeedback <centerballCenterYAxisFeedback resource>
YCenterChanger.yAxisFeedback <centerballCenterYAxisFeedback resource>
ZCenterChanger.yAxisFeedback <centerballCenterYAxisFeedback resource>
}
SEE ALSO
SoInteractionKit, SoDragger, SoDirectionalLightDragger, SoDragPointDragger,
SoHandleBoxDragger, SoJackDragger, SoPointLightDragger, SoRotateCylindricalDragger,
SoRotateDiscDragger, SoRotateSphericalDragger, SoScale1Dragger, SoScale2Dragger,
SoScale2UniformDragger, SoScaleUniformDragger, SoSpotLightDragger, SoTabBoxDragger,
SoTabPlaneDragger, SoTrackballDragger, SoTransformBoxDragger, SoTranslate1Dragger,
SoTranslate2Dragger
SoCenterballDragger(3IV)()