SoTrackballDragger(3IV)
SoTrackballDragger - striped ball you can rotate or scale uniformly by dragging with the mouse
As shipped in IRIX 6.5.22. Added in IRIX 6.5.22.
NAME SoTrackballDragger - striped ball you can rotate or scale uniformly by dragging with the mouse INHERITS FROM SoBase > SoFieldContainer > SoNode > SoBaseKit > SoInteractionKit > SoDragger > SoTrackballDragger SYNOPSIS #include <Inventor/draggers/SoTrackballDragger.h> Fields from class SoTrackballDragger: SoSFVec3f scaleFactor SoSFRotation rotation 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 SoTrackballDragger: SoTrackballDragger() SbBool isAnimationEnabled() void setAnimationEnabled(SbBool newVal) 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 SoTrackballDragger is a ball wrapped in three circular stripes. The stripes are oriented like wheels that spin around the x, y, and z axes. Drag the stripes to rotate the trackball around those axes. You do not have to hit the lines; pick anywhere within the stripe's outline. To rotate the trackball freely in 3 dimensions, click the area between the stripes and then drag. An invisible but pickable sphere initiates this dragging. If the mouse is still moving when you release it, the trackball will continue to spin. Press the <Control> key to scale the trackball uniformly instead of rotating. Press the <Shift> key and the user axis appears; this is a draggable axis with an extra stripe around it. Moving the mouse along the surface of the sphere drags the 'pole' of the axis. Release the <Shift> key and the user axis remains; drag the new stripe for constrained rotation around the user axis. To make the user axis disappear, press <Shift> and drag the pole to where two of other stripes intersect. This aligns the user axis with a primary axis, at which point the user axis disappears. As you drag the trackball, it updates its rotation field, or its scaleFactor field if the <Control> key is down. As with all draggers, if you change the fields the dragger moves in response. Remember: This is not an SoTransform!. If you want to move other objects with this dragger, you can either: [a] Use an SoTrackballManip, 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 SoTrackballManip reference 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 SoTrackballDragger 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/trackballDragger.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 SoSFVec3f scaleFactor Scale of the dragger. SoSFRotation rotation Orientation of the dragger. METHODS SoTrackballDragger() Constructor. SbBool isAnimationEnabled() void setAnimationEnabled(SbBool newVal) If the mouse is moving while you release it, the trackball will continue to spin afterwards. These two methods will query and set whether this feature is turned on or off. By default, the animation feature is turned on. 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 surroundScale SurroundScale -- yes antiSquish AntiSquish -- no rotator Separator -- yes rotatorActive Separator -- yes XRotator Separator -- yes XRotatorActive Separator -- yes YRotator Separator -- yes YRotatorActive Separator -- yes ZRotator Separator -- yes ZRotatorActive Separator -- yes userAxis Separator -- yes userAxisActive Separator -- yes userRotator Separator -- yes userRotatorActive Separator -- yes ______________________________________________________________ | | ________________________________________________________________ Extra information for list parts from above table Part Name Container Type Permissible Types Callback, EventCallback callbackList Separator ________________________________________________________________ | | DRAGGER RESOURCES Resource: trackballRotator Part: rotator Appearance: Invisible but pickable sphere Description: Initiates unconstrained 3D rotation. Slightly smaller radius than the stripes, so you must pick between the stripes to use it. Resource: trackballRotatorActive Part: rotatorActive Appearance: Invisible sphere Description: Displayed during unconstrained 3D rotation. Resource: trackballXRotator Part: XRotator Appearance: White outline of a stripe aligned with the X axis. Description: Pick this to initiate constrained rotation about the X axis. Resource: trackballXRotatorActive Part: XRotatorActive Appearance: Yellow version of the regular XRotator Description: Displayed during constrained rotation about the X axis. Resource: trackballYRotator Part: YRotator Appearance: White outline of a stripe aligned with the Y axis. Description: Pick this to initiate constrained rotation about the Y axis. Resource: trackballYRotatorActive Part: YRotatorActive Appearance: Yellow version of the regular YRotator Description: Displayed during constrained rotation about the Y axis. Resource: trackballZRotator Part: ZRotator Appearance: White outline of a stripe aligned with the Z axis. Description: Pick this to initiate constrained rotation about the Z axis. Resource: trackballZRotatorActive Part: ZRotatorActive Appearance: Yellow version of the regular ZRotator Description: Displayed during constrained rotation about the Z axis. Resource: trackballUserAxis Part: userAxis Appearance: Thin purple line Description: Displays the user axis. Dragging the userRotator rotates about this line. Resource: trackballUserAxisActive Part: userAxisActive Appearance: Thin purple line Description: Displays the user axis. Dragging the userRotator rotates about this line. Resource: trackballUserRotator Part: userRotator Appearance: Transparent green stripe circling the user axis. Description: Pick to initiate constrained rotation about the user axis. Resource: trackballUserRotatorActive Part: userRotatorActive Appearance: Brighter green version of the regular userRotator Description: Displayed during constrained rotation about the user axis. FILE FORMAT/DEFAULTS TrackballDragger { renderCaching AUTO boundingBoxCaching AUTO renderCulling AUTO pickCulling AUTO isActive FALSE rotation 0 0 1 0 scaleFactor 1 1 1 callbackList NULL surroundScale NULL antiSquish AntiSquish { sizing LONGEST_DIAGONAL } rotator <trackballRotator resource> rotatorActive <trackballRotatorActive resource> XRotator <trackballXRotator resource> XRotatorActive <trackballXRotatorActive resource> YRotator <trackballYRotator resource> YRotatorActive <trackballYRotatorActive resource> ZRotator <trackballZRotator resource> ZRotatorActive <trackballZRotatorActive resource> userAxis <trackballUserAxis resource> userAxisActive <trackballUserAxisActive resource> userRotator <trackballUserRotator resource> userRotatorActive <trackballUserRotatorActive resource> } NOTE Unlike most multi-function draggers, SoTrackballDragger is not a compound dragger made up of other draggers that perform its smaller tasks. This is not because it was inappropriate, but because the trackball was written before implementation of the methods that take care of synchronizing multiple child draggers. The younger SoCenterballDragger is similar in form to the trackball, but the centerball is a compound dragger. SEE ALSO SoInteractionKit, SoDragger, SoCenterballDragger, SoDirectionalLightDragger, SoDragPointDragger, SoHandleBoxDragger, SoJackDragger, SoPointLightDragger, SoRotateCylindricalDragger, SoRotateDiscDragger, SoRotateSphericalDragger, SoScale1Dragger, SoScale2Dragger, SoScale2UniformDragger, SoScaleUniformDragger, SoSpotLightDragger, SoTabBoxDragger, SoTabPlaneDragger, SoTransformBoxDragger, SoTransformerDragger, SoTranslate1Dragger, SoTranslate2Dragger