SoWinExaminerViewer Class Reference

Viewer component which uses a virtual trackball to view the data. More...

#include <Inventor/Win/viewers/SoWinExaminerViewer.h>

Inheritance diagram for SoWinExaminerViewer:

Classes
class	SoViewingDolly
	Viewing Function: Dolly (move forward and backward) to get closer to or further away from the point of interest. More...
class	SoViewingEmpty
	Viewing Function: Does nothing. More...
class	SoViewingFunction
	Viewing Function: Abstract base class for viewing function classes. More...
class	SoViewingReverseDolly
	Viewing Function: Reverse Dolly (move backward and forward) to get further to or closer away from the point of interest. More...
class	SoViewingRotationX
	Viewing Function: Rotates the object around the X axis. More...
class	SoViewingRotationXViewer
	Viewing Function: Rotates the object around the screen X axis. More...
class	SoViewingRotationY
	Viewing Function: Rotates the object around the Y axis. More...
class	SoViewingRotationYViewer
	Viewing Function: Rotates the object around the screen Y axis. More...
class	SoViewingRotationZ
	Viewing Function: Rotates the object around the Z axis. More...
class	SoViewingRotationZViewer
	Viewing Function: Rotates the object around the screen Z axis. More...
class	SoViewingSeek
	Viewing Function: Seek (to quickly move the camera to a desired object or point). More...
class	SoViewingSphericalRotation
	Viewing Function: Rotates the view around a point of interest using a virtual trackball. More...
class	SoViewingTranslation
	Viewing Function: Translates the camera in the viewer plane. More...

Public Types
enum	ViewingMode {   VIEWING_MODE_SPIN ,   VIEWING_MODE_SPIN_CONSTRAINED ,   VIEWING_MODE_PAN ,   VIEWING_MODE_ZOOM }
	Viewing mode. More...
enum	ConstrainedViewingMode {   NONE ,   CONSTRAINED_VIEWING_MODE_X ,   CONSTRAINED_VIEWING_MODE_Y ,   CONSTRAINED_VIEWING_MODE_Z }
	Constrained viewing mode. More...
Public Types inherited from SoWinFullViewer
enum	BuildFlag {   BUILD_NONE = 0x00 ,   BUILD_DECORATION = 0x01 ,   BUILD_POPUP = 0x02 ,   BUILD_ALL = 0xff }
	This specifies what should be build by default in the constructor. More...
Public Types inherited from SoWinViewer
enum	Type {   BROWSER ,   EDITOR }
	An EDITOR viewer will create a camera under the user supplied scene graph (specified in setSceneGraph()) if it cannot find one in the scene and will leave the camera behind when supplied with a new scene. More...
enum	DrawStyle {   VIEW_AS_IS ,   VIEW_HIDDEN_LINE ,   VIEW_NO_TEXTURE ,   VIEW_LOW_COMPLEXITY ,   VIEW_LINE ,   VIEW_POINT ,   VIEW_BBOX ,   VIEW_LOW_RES_LINE ,   VIEW_LOW_RES_POINT ,   VIEW_SAME_AS_STILL }
	list of possible drawing styles More...
enum	DrawType {   STILL ,   INTERACTIVE }
	DrawType. More...
enum	BufferType {   BUFFER_SINGLE ,   BUFFER_DOUBLE ,   BUFFER_INTERACTIVE }
	list of different buffering types More...
enum	DecimationStrategy {   NORMAL ,   FIXED_NUM_TRIANGLES ,   FRAMES_PER_SECOND ,   FIXED_PERCENTAGE }
	list of decimation strategies More...
enum	CursorStyle {   CLASSIC ,   XOR ,   SHADOW }
	Classic cursors are all white and tend to disappear over white geometry or white background. More...
Public Types inherited from SoWinGLWidget
enum	FloatColorBufferSize {   FLOAT_16_COLOR_BUFFER = SoGuiGLWidget::FLOAT_16_COLOR_BUFFER ,   FLOAT_32_COLOR_BUFFER = SoGuiGLWidget::FLOAT_32_COLOR_BUFFER }
	FloatColorBufferSize. More...

Public Member Functions
	SoWinExaminerViewer (SoWidget parent=NULL, const char *name=NULL, SbBool buildInsideParent=TRUE, SoWinFullViewer::BuildFlag flag=SoWinFullViewer::BUILD_ALL, SoWinViewer::Type type=SoWinViewer::BROWSER)
	Constructor which specifies the viewer type.
	~SoWinExaminerViewer ()
	Destructor.
void	setViewingMode (ViewingMode viewingMode)
	Sets the viewing mode.
ViewingMode	getViewingMode () const
	Gets the current viewing mode.
void	setConstrainedViewingMode (ConstrainedViewingMode mode)
	Sets the constrained viewing mode.
ConstrainedViewingMode	getConstrainedViewingMode () const
	Returns the current constrained viewing mode.
virtual void	addFunctionKeyBinding (SoKeyboardEvent::Key key, const SoViewingFunction *viewingFunc)
	Adds a new function key binding to the viewer.
virtual void	removeFunctionKeyBinding (SoKeyboardEvent::Key functionKey)
	Removes the specified function key binding (if it exists).
virtual void	addViewingMouseBinding (SoKeyboardEvent::Key *keys=NULL, int numKey=0, SoMouseButtonEvent::Button *mouseBtn=NULL, int numMouseBtn=0, const SoViewingFunction *viewingFunc=NULL)
	Adds a new mouse binding to the viewer.
virtual void	removeViewingMouseBinding (SoKeyboardEvent::Key *keys=NULL, int numKeys=0, SoMouseButtonEvent::Button *mouseBtn=NULL, int numMouseBtn=0)
	Removes a mouse binding (if it exists).
void	setFeedbackVisibility (SbBool onOrOff)
	Shows/hides the point of rotation feedback, which only appears while in viewing mode (default is off).
SbBool	isFeedbackVisible () const
	Returns the rotation feedback flag.
void	setFeedbackSize (int newSize)
	Sets the point of rotation feedback size in pixels (default 20 pix).
int	getFeedbackSize () const
	Returns the point of rotation feedback size in pixels.
void	setAnimationEnabled (SbBool onOrOff)
	Enables/disables the spin animation feature of the viewer (enabled by default).
SbBool	isAnimationEnabled ()
	Returns whether spin animation is enabled.
void	stopAnimating ()
	Stops animation, if it is occurring.
SbBool	isAnimating ()
	Queries if the viewer is currently animating.
virtual void	viewAll ()
	Changes the camera position to view the entire scene (the camera zoom or orientation isn't changed).
virtual void	resetToHomePosition ()
	Restores the camera values.
virtual void	setCamera (SoCamera *cam)
	Sets the camera that will be controlled by the viewer.
virtual void	setViewing (SbBool onOrOff)
	Sets whether the viewer is turned on or off.
virtual void	setCursorEnabled (SbBool onOrOff)
	Sets whether the viewer is allowed to change the cursor over the renderArea window.
virtual void	setSeekMode (SbBool onOrOff)
	Externally set the viewer into/out off seek mode (default OFF).
virtual void	activateSpinning (const SbVec2s &newLocator)
	Sets the start locator for spin camera animation.
virtual void	activatePanning (const SbVec2s &newLocator)
	Sets the start locator for pan camera animation.
virtual void	activateDolly (const SbVec2s &newLocator)
	Sets the start locator for dolly camera animation.
virtual void	activateRoll (const SbVec2s &newLocator)
	Sets the start locator for roll camera animation.
virtual void	rollCamera (const SbVec2s &newLocator)
	Roll the camera based on cursor motion.
virtual void	spinCamera (const SbVec2f &newLocator)
	Spin the camera based on cursor motion.
virtual void	spinConstrainedCamera (const SbVec2f &newLocator, int axisIndex)
	Spin the constrained camera based on cursor motion.
virtual void	dollyCamera (const SbVec2s &newLocator)
	Move the camera on the z axis based on cursor motion.
virtual void	reverseDollyCamera (const SbVec2s &newLocator)
	Same as dollyCamera but reversed.
virtual void	panCamera (const SbVec2f &newLocator)
	Pans the camera based on cursor motion.
Public Member Functions inherited from SoWinFullViewer
void	setDecoration (SbBool onOrOff)
	Shows/hides the viewer component trim (default on).
SbBool	isDecoration ()
	Returns whether the viewer component trim is on or off.
void	setPopupMenuEnabled (SbBool trueOrFalse)
	Enables/disables the viewer popup menu (default enabled).
SbBool	isPopupMenuEnabled ()
	Returns whether the viewer popup menu is enabled or disabled.
void	setClientPopupMenu (Hmenu hmenu)
	Enables application-specific popup menu.
SbBool	isClientPopupMenuInstalled ()
	Returns TRUE if an application-specific popup menu is installed.
SoWidget	getAppPushButtonParent () const
	Returns application push button parent.
void	addAppPushButton (SoWidget newButton)
	Adds application push button, which will be placed in the left hand side decoration trim.
void	insertAppPushButton (SoWidget newButton, int index)
	Adds application push button, which will be placed in the left hand side decoration trim.
void	removeAppPushButton (SoWidget oldButton)
	Removes specified application push button.
int	findAppPushButton (SoWidget oldButton)
	Returns index of specified push button.
int	lengthAppPushButton ()
	Returns number of application push buttons.
SoWidget	getRenderAreaWidget ()
	Returns the render area window handle.
virtual void	hide ()
	This hides the component.
SoStereoDialog *	getStereoDialog ()
void	setStereoDialog (SoStereoDialog *newDialog)
void	addPushAppButtonCallback (PushAppButtonCB *cb, void *data=NULL)
void	addRedrawAppButtonCallback (RedrawAppButtonCB *cb, void *data=NULL)
Public Member Functions inherited from SoWinViewer
virtual void	setSceneGraph (SoNode *newScene)
	Sets the scene graph to render.
virtual SoNode *	getSceneGraph ()
	Gets the scene graph to be rendered in this component's window.
SoCamera *	getCamera ()
	Gets the camera controlled by the viewer.
virtual void	setCameraType (SoType type)
	Sets the camera type that will be created by the viewer if no cameras are found in the scene graph (see SoPerspectiveCamera and SoOrthographicCamera).
SoType	getCameraType ()
	Gets the camera type that will be created by the viewer if no cameras are found in the scene graph (see SoPerspectiveCamera and SoOrthographicCamera).
virtual void	setPreserveCameraHeightAngle (SbBool flag)
	If TRUE, an SoPerspectiveCamera's heightAngle is preserved if the camera is changed to an SoOrthographicCamera and then toggled back to an SoPerspectiveCamera.
virtual SbBool	isCameraHeightAnglePreserved () const
	Query whether the SoPerspectiveCamera's heightAngle is preserved if the camera is changed to an SoOrthographicCamera and then toggled back to an SoPerspectiveCamera.
virtual void	enableSeekWithOrtho (SbBool flag)
	If FALSE, the seek functionality is disabled for an SoOrthographicCamera.
virtual SbBool	isSeekWithOrthoEnabled () const
	Query whether the seek functionality is enabled for an SoOrthographicCamera.
virtual void	saveHomePosition ()
	Saves the camera values.
void	setCameraTypeChangeCallback (SoWinViewerCameraTypeChangeCB *callback, void *userdata)
	Defines a callback which is called each time the camera type has changed (change from SoPerspectiveCamera to SoOrthographicCamera or vice versa).
void	setHeadlight (SbBool onOrOff)
	Turns the headlight on/off (default on).
SbBool	isHeadlight ()
	Queries if the headlight is on.
SoDirectionalLight *	getHeadlight ()
	Returns the headlight node.
void	setDrawStyle (SoWinViewer::DrawType type, SoWinViewer::DrawStyle style)
	Sets the current drawing style in the main view.
SoWinViewer::DrawStyle	getDrawStyle (SoWinViewer::DrawType type)
	Queries the current drawing style in the main view.
void	setBufferingType (SoWinViewer::BufferType type)
	Sets the current buffering type in the main view (default SoWinViewer::BUFFER_DOUBLE).
SoWinViewer::BufferType	getBufferingType ()
	Gets the current buffering type in the main view.
SbBool	isViewing () const
	Queries whether the viewer is turned on or off.
SbBool	isSeekMode ()
	Queries whether the seek mode is active.
SbBool	isCursorEnabled () const
	Queries whether the viewer is allowed to change the cursor over the renderArea window.
void	setAutoClipping (SbBool onOrOff)
	Sets the auto clipping plane.
SbBool	isAutoClipping () const
	Queries if auto clipping is ON.
virtual void	setStereoViewing (SbBool onOrOff)
	Turns stereo viewing on/off on the viewer (default off).
virtual SbBool	isStereoViewing ()
	Queries if stereo viewing is on or off on the viewer.
void	setStereoOffset (float dist)
	Sets the stereo offset.
float	getStereoOffset ()
	Returns the stereo offset.
void	setDetailSeek (SbBool onOrOff)
	When the viewer is in seek mode, left mouse clicks initiate a pick, and the viewer changes its orientation and position to look at the picked object.
SbBool	isDetailSeek ()
	Queries whether detail seek is on.
void	setSeekTime (float seconds)
	Sets the time a seek takes to change to the new camera location.
float	getSeekTime ()
	Queries the seek time.
void	addStartCallback (SoWinViewerCB *f, void *userData=NULL)
	Adds start callback routine on the viewer.
void	addFinishCallback (SoWinViewerCB *f, void *userData=NULL)
	Adds finish callback routine on the viewer.
void	removeStartCallback (SoWinViewerCB *f, void *userData=NULL)
	Removes start callback routine from the viewer.
void	removeFinishCallback (SoWinViewerCB *f, void *userData=NULL)
	Removes finish callback routine from the viewer.
void	copyView (Time eventTime)
	Copies the view.
void	pasteView (Time eventTime)
	Pastes the view.
virtual void	setNormalVisual (XVisualInfo *i)
	Specifies the exact pixel format descriptor for the normal window.
virtual void	recomputeSceneSize ()
	This can be used to let the viewer know that the scene graph has changed so that the viewer can recompute things like speed which depend on the scene graph size.
void	setDecimationStrategy (SoWinViewer::DecimationStrategy strategy)
	Sets strategy to use to decide on decimation value.
SoWinViewer::DecimationStrategy	getDecimationStrategy ()
	Gets strategy to use to decide on decimation value.
void	setGoalNumberOfTriangles (int32_t goal)
	Sets goal number of triangles for the viewer to try to render.
int32_t	getGoalNumberOfTriangles ()
	Gets goal number of triangles for the viewer to try to render.
void	setGoalFramesPerSecond (float goal)
	Sets goal frames per second for the viewer to try to render.
float	getGoalFramesPerSecond ()
	Gets goal frames per second for the viewer to try to render.
void	setFixedPercentage (float percent)
	Sets fixed percentage for the viewer to render (0.0 to 1.0) Default is 1.0.
float	getFixedPercentage ()
	Gets fixed percentage for the viewer to render (0.0 to 1.0)
void	enableFullRenderingWhenStill (SbBool onOff)
	If this flag is set, the viewer will render at full resolution when it sits still for a certain period of time.
SbBool	isFullRenderingWhenStill ()
	Queries if the viewer will render at full resolution when it sits still for a certain period of time.
SbBool	isStillNow ()
	Returns whether the viewer is currently still.
void	setFramesPerSecondCallback (SoWinViewerFPSCB *callback, void *userData=NULL)
	Registers frames per second callback.
void	setNumSamples (int numFrames)
	Sets how many frames should be timed before frames per second callback is called, default is 10.
int	getNumSamples ()
	Gets how many frames should be timed before frames per second callback is called.
void	setDecimationPercentageCallback (SoWinViewerDecimationPercentageCB *callback, void *userData=NULL)
	Registers decimation percentage callback.
float	getCurrentDecimationPercentage ()
	Returns the Decimation Percentage the viewer used in its last render.
void	enableMouseWheelDolly (SbBool onOff)
	Enable/disable moving the camera with the mouse wheel, TRUE by default.
void	setPickRadius (float radius)
	Sets the pick radius, in pixels, used by the viewer for picking and seeking actions.
float	getPickRadius () const
	Returns the current pick radius for picking and seeking actions.
virtual SoCamera *	getViewerCamera ()
	Returns the camera so SoBaseStereo can manipulate it to achieve the stereo effect.
virtual SbBool	isViewerDoubleBuffer ()
	Returns TRUE if viewer is double buffered.
virtual void	actualRendering ()
	This method is called automatically when the viewer requests that its SoBaseStereo object perform stereo rendering.
virtual const SbVec2s &	getSize ()
	Returns the size of the OpenGL drawing window in absolute screen coordinates (not relative to parent window) of the native window system (typically Y increasing downward).
virtual const SbVec2s &	getTopLeft ()
	Returns the position of the OpenGL drawing window in absolute screen coordinates (not relative to parent window) of the native window system (typically Y increasing downward).
virtual const SbVec2s &	getBottomRight ()
	Returns the position of the OpenGL drawing window in absolute screen coordinates (not relative to parent window) of the native window system (typically Y increasing downward).
void	setStereoViewType (SoBaseStereo *stereo)
	Set an implementation of stereo viewing to use.
SoBaseStereo *	getStereoViewType ()
	Returns the current stereo implementation.
void	reverseStereoView (SbBool reverse)
	If TRUE, reverse the left and right eye views.
SbBool	isStereoViewReversed ()
	Returns TRUE if the left and right eye views are reversed.
virtual void	setStereoAbsoluteAdjustments (SbBool absolute)
	If TRUE, use stereo absolute adjustments.
virtual SbBool	isStereoAbsoluteAdjustments () const
	Returns TRUE if stereo absolute adjustments are enabled.
virtual void	setStereoBalance (float balance, SbBool nearFrac=false)
	Sets the stereo balance (the position of the zero parallax plane).
virtual float	getStereoBalance ()
	Returns the current stereo balance.
virtual SbBool	isStereoBalanceNearFrac ()
	Returns TRUE if the stereo balance adjustement is defined as a fraction of the camera near distance.
virtual void	setStereoActive (SbBool activate)
	If TRUE, stero is activated.
virtual SbBool	isStereoActive ()
	Returns TRUE if stereo is active.
void	setViewport (short left, short bottom, short width, short height)
	Sets viewport region with given origin (lower-left corner) and size, given as pixel coordinates.
void	getViewport (short &left, short &bottom, short &width, short &height)
	Returns viewport region as origin (lower-left corner) and size, given as pixel coordinates.
virtual void	setCursorStyle (SoWinViewer::CursorStyle style)
	Sets the cursor style.
SoWinViewer::CursorStyle	getCursorStyle ()
	Returns the cursor style.
void	setAutoClipTolerance (float tolerance)
	Sets the auto clipping tolerance value.
float	getAutoClipTolerance () const
	Returns the auto clipping tolerance value.
virtual void	setCameraSceneGraph (SoNode *cameraSceneGraph)
	Sets the sub-scene graph to be used for viewAll computation.
SoNode *	getCameraSceneGraph ()
	Gets the sub-scene graph to be viewed.
virtual void	toggleCameraType ()
	This routine will toggle the current camera from perspective to orthographic, and from orthographic back to perspective.
SbBool	getDepthValue (int x, int y, float &depth)
	Returns the depth value, scaled between 0.0 and 1.0, from the depth buffer at window coordinates x, y.
virtual SoDEPRECATED void	adjustClippingPlanes ()
	Along with the manipulation of the camera, SoBaseStereo needs to set the scene appropriately when changing the camera settings.
Public Member Functions inherited from SoWinRenderArea
	SoWinRenderArea (SoWidget parent=NULL, const char *name=NULL, SbBool buildInsideParent=TRUE, SbBool getMouseInput=TRUE, SbBool getKeyboardInput=TRUE)
	Constructor which is passed arguments which tell it whether to register the mouse and keyboard devices by default (SoWinMouse and SoWinKeyboard).
	~SoWinRenderArea ()
	Destructor.
void	registerDevice (SoWinDevice *d)
	Registers interest in devices.
void	unregisterDevice (SoWinDevice *d)
	Unregisters interest in devices.
void	setBackgroundColor (const SbColor &c)
	Sets the background color for this window.
SbColor	getBackgroundColor () const
	Gets the background color for this window.
void	setBackgroundIndex (int index)
	Sets the window background color when in color index mode.
int	getBackgroundIndex () const
	Gets the window background color when in color index mode.
void	setColorMap (int startIndex, int num, const SbColor *colors)
	Sets the colors to use when displaying in color index mode.
void	setViewportRegion (const SbViewportRegion &newRegion)
	Sets viewport region to use for rendering.
const SbViewportRegion &	getViewportRegion () const
	Gets current viewport region to use for rendering.
void	setTransparencyType (SoGLRenderAction::TransparencyType type)
	Sets the algorithm for rendering transparent objects.
SoGLRenderAction::TransparencyType	getTransparencyType () const
	Gets the algorithm for rendering transparent objects.
void	setFastEditSavePolicy (SoGLRenderAction::FastEditSavePolicy policy, SbBool fastEditDelayedObjects=FALSE)
	Sets fast editing save policy to use when rendering.
SoGLRenderAction::FastEditSavePolicy	getFastEditSavePolicy () const
	Returns fast editing save policy used when rendering.
void	setInvalidateCacheMode (SoGLRenderAction::InvalidateCacheMode icm)
	Enables or disables the invalidation of render caches.
SoGLRenderAction::InvalidateCacheMode	getInvalidateCacheMode ()
	Returns the current cache invalidation mode.
void	setClearBeforeRender (SbBool trueOrFalse, SbBool zbTrueOrFalse=TRUE)
	Enables/prevents window clearing from happening before a rendering starts (default is clear TRUE).
SbBool	isClearBeforeRender () const
	Queries whether the window will be cleared before rendering starts.
SbBool	isClearZBufferBeforeRender () const
	Queries whether the depth buffer (sometimes called the Z buffer) will be cleared before rendering starts.
void	setAutoRedraw (SbBool trueOrFalse)
	The render area will automatically redraw whenever something in the scene graph changes.
SbBool	isAutoRedraw () const
	Queries whether the render area will automatically redraw whenever something in the scene graph changes.
void	setRedrawPriority (unsigned long priority)
	Sets the priority of the redraw sensor.
unsigned long	getRedrawPriority () const
	Gets the priority of the redraw sensor.
void	render ()
	Calling this forces the render area to be redrawn now.
void	scheduleRedraw ()
	Schedules a redraw to happen sometime soon (as opposed to immediately).
void	redrawOnSelectionChange (SoSelection *s)
	Call this convenience method to have this render area redraw whenever the selection list changes in the passed node.
void	setEventCallback (SoWinRenderAreaEventCB *fcn, void *userData=NULL)
	Windows messages which occur in the render area window are either directly handled by the viewer (when this is really a viewer) or automatically translated to SoEvents, then passed into the scene graph (via the SoHandleEventAction) so that live scene graph objects can handle the message (when viewers are not in viewing mode).
void	setSceneManager (SoSceneManager *sm)
	Sets the normal scene manager.
SoSceneManager *	getSceneManager () const
	Gets the normal scene manager.
void	setGLRenderAction (SoGLRenderAction *ra)
	Sets the GL render action to use.
SoGLRenderAction *	getGLRenderAction () const
	Gets the current GL render action.
const SbGLShareContext	getShareContext ()
	Returns the information needed to make OpenGL render contexts share OpenGL objects, for example, display lists and texture objects.
void	setPostRenderCallback (SoWinRenderAreaRenderCB *fcn, void *userData=NULL)
	Specifies a function to be called after the Open Inventor render traversal and immediately before the OpenGL buffer swap.
SoWinRenderAreaRenderCB *	getPostRenderCallback (const void *&userData) const
	Gets the post-render callback function and data.
void	setFloatingColorBuffer (SbBool enable, FloatColorBufferSize size=FLOAT_16_COLOR_BUFFER)
	Enables/disables floating point rendering using 16- or 32-bit components.
void	getFloatingColorBuffer (SbBool &enable, FloatColorBufferSize &size)
	Returns TRUE if floating point rendering is used and its precision.
void	sendEvent (XAnyEvent *anEvent)
	Sends the event to be processed by the renderArea.
virtual void	setMPEGRecorder (SoMPEGRenderer *recorder)
	Sets the recorder used for MPEG encoding.
virtual SoMPEGRenderer *	getMPEGRecorder () const
	Returns the recorder used for MPEG encoding.
Public Member Functions inherited from SoWinGLWidget
virtual Window	getNormalWindow ()
	Gets the normal GL window, which is needed as an argument to SbGlContextHelper::makeCurrent() when drawing in the normal planes.
GLXContext	getNormalContext ()
	Gets the normal context, which is needed as an argument to SbGlContextHelper::makeCurrent() when drawing in the normal planes.
virtual SoGLContext *	getNormalSoContext ()
Hdc	getNormalDC () const
	Returns the device context (which is needed for SbGlContextHelper::makeCurrent).
void	setStealFocus (SbBool onOrOff)
	By default the GLWidget "steals" focus whenever the cursor moves over it.
SoWidget	getNormalWidget () const
	Gets the normal window handle, which is needed as an argument to SbGlContextHelper::makeCurrent() when drawing in the normal planes.
XVisualInfo *	getNormalVisual ()
	Returns the pixel format descriptor for the normal window.
virtual void	setPixelFormat (int format)
	Sets the current pixel format.
int	getPixelFormat ()
	Returns the current pixel format.
void	setAntialiasing (const float quality, const SoSceneManager::AntialiasingMode mode=SoSceneManager::AUTO)
	Enable (or disable) antialiasing with specified quality and mode.
void	setAntialiasing (SoAntialiasingParameters *advancedParameters)
	Enable (or disable) antialiasing with specific parameters.
float	getAntialiasingQuality () const
	Returns the antialiasing quality set using the setAntialiasing(float,AntialiasingMode) method.
SoSceneManager::AntialiasingMode	getAntialiasingMode () const
	Returns the antialiasing mode set using the setAntialiasing(float,AntialiasingMode) method.
SoAntialiasingParameters *	getAntialiasingParameters () const
	Returns the antialiasing parameters set using the setAntialiasing(SoAntialiasingParameters*) method.
void	setDoubleBuffer (SbBool onOrOff)
	Routine that dynamically changes between single and double buffering.
SbBool	isDoubleBuffer ()
	Returns whether double buffering is on or off.
void	setBorder (SbBool onOrOff)
	Included for portability only.
int	getBorderSize ()
	Included for portability only.
SbBool	isBorder () const
	Included for portability only.
void	setDrawToFrontBufferEnable (SbBool enableFlag)
	Sets drawing to the front buffer.
SbBool	isDrawToFrontBufferEnable () const
	Returns whether drawing to the front buffer is enabled.
void	setCursor (Cursor newCursor)
	Sets the current cursor.
Cursor	getCursor ()
	Returns the current cursor.
virtual SbBool	bindNormalContext ()
	Makes the normal rendering context the current context.
virtual SbBool	unbindNormalContext ()
	unbind the current context (previously bind with bindNormalContext );
virtual SbBool	swapNormalBuffers ()
	Swaps the normal front and back buffers.
SoGLGraphicConfigTemplate *	getGraphicConfigTemplate ()
	Gets the current graphics configuration template.
void	setGraphicConfigTemplate (SoGLGraphicConfigTemplate *gTemplate)
	Sets a new graphics configuration template.
bool	saveSnapshot (const SbString &filename, bool overwrite=true)
	Save a snapshot of the current image displayed in the viewer.
Public Member Functions inherited from SoWinComponent
virtual void	show ()
	This shows the component.
SbBool	isVisible ()
	Returns TRUE if this component is mapped onto the screen.
SoWidget	getWidget () const
	This returns the base window handle for this component.
SbBool	isTopLevelShell () const
	Returns TRUE if this component is a top level shell component (has its own window).
SoWidget	getShellWidget () const
	Returns the shell window handle (NULL if the shell hasn't been created by this component).
SoWidget	getParentWidget () const
	Returns the parent window handle, be it a shell or not.
void	setSize (const SbVec2s &size)
	Convenience routine on the window handle.
SbVec2s	getSize ()
	Convenience routine on the window handle.
SbBool	setFullScreen (const SbBool enable)
	Switches the viewer into (or out of) fullscreen mode.
SbBool	isFullScreen () const
	Queries if the viewer is in fullscreen mode.
void	setFullScreenEnable (const SbBool enable)
	Enables/disables fullscreen mode.
SbBool	isFullScreenEnable (void) const
	Queries if it is possible to put the viewer in fullscreen mode.
UINT *	getDisplay ()
	Included for portability only.
SoNONUNICODE void	setTitle (const char *newTitle)
	Sets window title.
void	setTitle (const SbString &newTitle)
	Sets window title.
SbString	getTitle () const
	Gets window title.
SoNONUNICODE void	setIconTitle (const char *newIconTitle)
	Included for portability only.
void	setIconTitle (const SbString &newIconTitle)
	Included for portability only.
SbString	getIconTitle () const
	Included for portability only.
void	setWindowCloseCallback (SoWinComponentCB *func, void *data=NULL)
	Sets which callback to call when the user closes this component (double click in the upper left corner) - by default hide() is called on this component, unless a callback is specified.
SbString	getWidgetName () const
	Returns the window handle name.
SbString	getClassName () const
	Returns the class name.
virtual	~SoWinComponent ()
	Destructor.
Public Member Functions inherited from SoStereoViewer
virtual	~SoStereoViewer ()
	Destructor.

Additional Inherited Members
Static Public Member Functions inherited from SoWinFullViewer
static void	setDoButtonBar (SbBool onOrOff)
	Create the next instance of fullviewer w/wo the buttonbar.
static SbBool	isDoButtonBar ()
	Returns whether the buttonbar is enabled or disabled.
Static Public Member Functions inherited from SoWinRenderArea
static unsigned long	getDefaultRedrawPriority ()
	Gets the default priority number of the redraw sensor.
static SbBool	isFloatingColorBufferSupported ()
	Returns TRUE if floating point rendering is available.
Static Public Member Functions inherited from SoWinComponent
SoDEPRECATED static SoNONUNICODE void	displayHelp (const char *filename, UINT contextID)
	Static method to display the specified topic of the specified help file.
static SoDEPRECATED void	displayHelp (const SbString &filename, UINT contextID)
	Static method to display the specified topic of the specified help file.
static SoWinComponent *	getComponent (SoWidget w)
	Returns the SoWinComponent for this window handle.
Public Attributes inherited from SoWinFullViewer
SoCallbackList	popupPostCallback
	The callbacks in this list will be invoked after the action selected from the viewer popup has been performed.
SoCallbackList	popupPreCallback
	The callbacks in this list are invoked immediately prior to display of the popup menu, regardless of whether it is the pre-defined viewer menu or a menu installed by the client application.
Hmenu	rootPopup
	Pointer to the popup menu container.
Hmenu	mainPopup
	Pointer to the root of the popup menu.
Hmenu	funcPopup
	Pointer to the Functions submenu.
Hmenu	drawPopup
	Pointer to the Draw Style submenu.
Hmenu	prefPopup
	Pointer to the Preferences submenu.
UINT	curPopupDrawItem
	In this version we track the currently "check marked" menu item in the Draw Style submenu (only one checked at a time).
UINT	curPopupMoveItem
UINT	curPopupBufferItem
Hmenu	hClientPopup
	Popup menu provided by a client (i.e.
Public Attributes inherited from SoWinComponent
SbString	helpFileName
	Name of help file to open when the viewer Help button is pressed.
UINT	helpContextID
	The context ID of the help topic to open when the viewer Help button is pressed.
SbString	helpContextString
	The TopicID of the help topic to open when the viewer Help button is pressed.

Detailed Description

Viewer component which uses a virtual trackball to view the data.

The Examiner viewer component allows you to rotate the view around a point of interest using a virtual trackball. The viewer uses the camera focalDistance field to figure out the point of rotation, which is usually set to be at the center of the scene. In addition to allowing you to rotate the camera around the point of interest, this viewer also allows you to translate the camera in the viewer plane, as well as dolly (move forward and backward) to get closer to or further away from the point of interest. The viewer seek capability can be used to position the camera towards a selected object or point.

Focal point:

The center of rotation for the ExaminerViewer, called the focalPoint, is defined as a point that is focalDistance from the camera position, along the viewVector, where the viewVector is (indirectly) defined by the camera orientation. You can compute the focalPoint for the current camera settings like this:

SoCamera* camera = viewer->getCamera();
SbMatrix mx;                         // Note constructor does not accept SbRotation
mx = camera->orientation.getValue(); // Assignment converts SbRotation to SbMatrix
SbVec3f viewVec(-mx[2][0], -mx[2][1], -mx[2][2]);
SbVec3f camPos  = camera->position.getValue();
float   focDist = camera->focalDistance.getValue();
SbVec3f focalPt = camPos + (focDist * viewVec);

To better understand the above code, remember that we can convert an SbRotation to an SbMatrix and, since orientation is a pure rotation matrix, we can consider the first three columns of this matrix to be the orthogonal X, Y and Z vectors defining the rotated coordinate system. Therefore the view vector is the inversion of the Z axis vector; and finally because this vector is already normalized, an offset of "dist" along this vector is simply "dist * vector". Of course if you have a focalPoint in mind, you can work backward to compute camera position or focalDistance depending on which parameters you want to keep constant.

Customize behaviors:

See the addFunctionKeyBinding() and addViewingMouseBinding() methods to customize some behaviors of the viewer.

Viewer components:

For applications that need more flexibility, we recommend using the "viewer component" classes to build exactly the viewing behaviors that your application needs. Please see the SoCameraInteractor, SceneInteractor and SceneExaminer classes.

USAGE

(For 3-button mouse only.)

Left Mouse: Rotate the virtual trackball.

Middle Mouse or
Ctrl + Left Mouse: Translate up, down, left, right.

Ctrl + Middle Mouse or
Left + Middle Mouse: Dolly in and out (gets closer to and further away from the object) (Perspective camera) or zoom in and out (Orthographic camera).

<s> + Left Mouse: Alternative to the Seek button. Press (but do not hold down) the <s> key, then click on a target object.

Right Mouse: Open the popup menu.

ALT: When the viewer is in selection (a.k.a. pick) mode, pressing and holding the ALT key temporarily switches the viewer to viewing mode. When the ALT key is released, the viewer returns to selection mode. Note: If any of the mouse buttons are currently depressed, the ALT key has no effect.

Mouse Wheel: Dolly/zoom camera
Rotating the mouse wheel does a camera "dolly" operation on a perspective camera (moving the camera closer or farther away from the scene, which visually zoom) or a camera "zoom" operation on an orthographic camera (changing the view volume height).


Note that many users find the default dolly speed with the mouse wheel to be too slow. The user can hold down the Shift key to make the mouse wheel dolly go 2X faster. To increase the base speed set the environment variable OIV_WHEEL_DELTA. Mouse wheel events contain a "delta" that is a multiple of 120. The viewer divides this value by OIV_WHEEL_DELTA to compute the camera dolly increment. The default value for OIV_WHEEL_DELTA is 120. So, for example, setting OIV_WHEEL_DELTA to 12 makes the mouse wheel dolly go 10X faster.

SEE ALSO

SoWinFullViewer, SoWinViewer, SoWinComponent, SoWinRenderArea, SoWinWalkViewer, SoWinFlyViewer, SoWinPlaneViewer

Definition at line 187 of file SoWinExaminerViewer.h.

Member Enumeration Documentation

ConstrainedViewingMode

enum SoWinExaminerViewer::ConstrainedViewingMode

Constrained viewing mode.

Enumerator
NONE	No axis constraints.
CONSTRAINED_VIEWING_MODE_X	Constrains camera rotation around X axis.
CONSTRAINED_VIEWING_MODE_Y	Constrains camera rotation around Y axis.
CONSTRAINED_VIEWING_MODE_Z	Constrains camera rotation around Z axis.

Definition at line 228 of file SoWinExaminerViewer.h.

ViewingMode

enum SoWinExaminerViewer::ViewingMode

Viewing mode.

Enumerator
VIEWING_MODE_SPIN	Rotate the camera around the point of interest.
VIEWING_MODE_SPIN_CONSTRAINED	Same as VIEWING_MODE_SPIN but add also constrained camera rotation. It modifies the viewer usage described previously as follow: Ctrl + Left Mouse : Rotation around the Z axis Shift + Left Mouse or : Rotation around the X or the Y axis. If the mouse movement is globally from the left to the right (resp. from up to down) the Y axis (resp. X axis) is chosen.
VIEWING_MODE_PAN	Translate the camera in the viewer plane.
VIEWING_MODE_ZOOM	Dolly/Zoom (move forward and backward) to get closer to or further away from the point of interest.

Definition at line 195 of file SoWinExaminerViewer.h.

Constructor & Destructor Documentation

SoWinExaminerViewer()

SoWinExaminerViewer::SoWinExaminerViewer	(	SoWidget	parent = NULL,
		const char *	name = NULL,
		SbBool	buildInsideParent = TRUE,
		SoWinFullViewer::BuildFlag	flag = SoWinFullViewer::BUILD_ALL,
		SoWinViewer::Type	type = SoWinViewer::BROWSER
	)

Constructor which specifies the viewer type.

Please refer to SoWinViewer for a description of the viewer types.

NOTES

On Windows, the constructor will not create a new top level window – you must pass a valid window handle for the parent parameter and pass TRUE for buildInsideParent .

~SoWinExaminerViewer()

SoWinExaminerViewer::~SoWinExaminerViewer

(

)

Destructor.

Member Function Documentation

activateDolly()

virtual void SoWinExaminerViewer::activateDolly ( const SbVec2s &  newLocator )

virtual

Sets the start locator for dolly camera animation.

This method should be called fisrt, before to start a dolly camera animation.

Parameters

newLocator

The start mouse position in pixels. The coordinates must be defined with x in the range [0,window width] and y in the range [0,window height] with min y at the bottom and min x on the left.

Since Open Inventor 9.2.1

activatePanning()

virtual void SoWinExaminerViewer::activatePanning ( const SbVec2s &  newLocator )

virtual

Sets the start locator for pan camera animation.

This method should be called fisrt, before to start a pan camera animation.

Parameters

newLocator

The start mouse position in pixels. The coordinates must be defined with x in the range [0,window width] and y in the range [0,window height] with min y at the bottom and min x on the left.

Since Open Inventor 9.2.1

activateRoll()

virtual void SoWinExaminerViewer::activateRoll ( const SbVec2s &  newLocator )

virtual

Sets the start locator for roll camera animation.

This method should be called fisrt, before to start a roll camera animation.

Parameters

newLocator

The start mouse position in pixels. The coordinates must be defined with x in the range [0,window width] and y in the range [0,window height] with min y at the bottom and min x on the left.

Since Open Inventor 9.2.1

activateSpinning()

virtual void SoWinExaminerViewer::activateSpinning ( const SbVec2s &  newLocator )

virtual

Sets the start locator for spin camera animation.

This method should be called fisrt, before to start a spin camera animation.

Parameters

newLocator

The start mouse position in pixels. The coordinates must be defined with x in the range [0,window width] and y in the range [0,window height] with min y at the bottom and min x on the left.

Since Open Inventor 9.2.1

addFunctionKeyBinding()

virtual void SoWinExaminerViewer::addFunctionKeyBinding ( SoKeyboardEvent::Key  key, const SoViewingFunction *  viewingFunc  )

virtual

Adds a new function key binding to the viewer.

This method allows you to associate a keyboard key with a viewing function, such as rotation or translation. The specified viewing function replaces any viewing function currently associated with the specified key. Any key may be used, not just "function keys".

A key cannot be associated with more than one viewing function at a time. However, more than one key can be associated with a single viewing function. For example, the S and T keys could each be used to invoke the seek operation.

addViewingMouseBinding()

virtual void SoWinExaminerViewer::addViewingMouseBinding ( SoKeyboardEvent::Key *  keys = NULL, int  numKey = 0, SoMouseButtonEvent::Button *  mouseBtn = NULL, int  numMouseBtn = 0, const SoViewingFunction *  viewingFunc = NULL  )

virtual

Adds a new mouse binding to the viewer.

This method allows you to associate an array of modifier keys (of length numKey) and an array of mouse buttons (of length numMouseBtn) with a viewing operation, such as rotation or translation. The specified viewing function replaces the viewing function currently associated with the specified key and mouse button sequence.

Modifier keys (CTRL, SHIFT, CTRL+SHIFT...) can be specified in addition to the mouse buttons chosen. There is no error for specifying non-modifier keys, but they have no effect. The order of the keys and the mouse buttons is important. For example, CTRL+SHIFT+BT1 is different from SHIFT+CTRL+BT1. Likewise, CTRL+BT1+BT2 is different from CTRL+BT2+BT1.

A key and mouse button sequence cannot be associated with more than one viewing function at a time. However, more than one key and mouse button sequence can be associated with a single viewing function.

Notes:

• Mouse button and key bindings are active in both viewing and selection mode. This means that bindings can be used to have viewing functions available in selection mode. But note that if a binding exists for a mouse button or key, then the corresponding event is not sent to the scene graph in selection mode.
• When one of the viewing functions, e.g. SoViewingDolly, is activated it will automatically set an appropriate cursor shape (if there is one) for that function.
• Many keyboards have Shift and Ctrl keys on the left side and the right side. The left and right keys, e.g. LEFT_SHIFT and RIGHT_SHIFT, are different for event handling. But for convenience, assigning either one to a mouse binding effectively assigns both keys.
• It is also possible to redefine any of the mouse buttons by handling the mouse button events before the viewer handles them (see setEventCallback()).
• Popup menu is automatically disable when Button3 is redefined.
• When one of the viewing functions is activated and the viewer is in "selection" mode, the viewer is switched to "viewing" mode when applying the function and then, returns in selection mode.

Limitations:

• It is not currently possible to redefine Button1 as selection (picking). However you can implement this behavior using setEventCallback() to always send Button1 events to the scene graph.
• In the default viewer behavior, pressing a modifier key during an LButton viewing operation will temporarily change the active viewing function. For example, while pressing LButton to spin, pressing the shift key temporarily switches to pan function. It is not currently possible to define such behavior using mouse bindings.

dollyCamera()

virtual void SoWinExaminerViewer::dollyCamera ( const SbVec2s &  newLocator )

virtual

Move the camera on the z axis based on cursor motion.

This corresponds to pressing left and middle mouse buttons, pressing control + shift + left mouse button or using the mouse wheel.

Parameters

newLocator

The new cursor position. The coordinates are in pixels with x in the range [0,window width-1] and y in the range [0,window height-1] with min y at the bottom and min x on the left.

getConstrainedViewingMode()

ConstrainedViewingMode SoWinExaminerViewer::getConstrainedViewingMode ( ) const

inline

Returns the current constrained viewing mode.

Definition at line 298 of file SoWinExaminerViewer.h.

getFeedbackSize()

int SoWinExaminerViewer::getFeedbackSize ( ) const

inline

Returns the point of rotation feedback size in pixels.

Definition at line 698 of file SoWinExaminerViewer.h.

getViewingMode()

ViewingMode SoWinExaminerViewer::getViewingMode ( ) const

inline

Gets the current viewing mode.

Definition at line 279 of file SoWinExaminerViewer.h.

isAnimating()

SbBool SoWinExaminerViewer::isAnimating ( )

inline

Queries if the viewer is currently animating.

Definition at line 722 of file SoWinExaminerViewer.h.

isAnimationEnabled()

SbBool SoWinExaminerViewer::isAnimationEnabled ( )

inline

Returns whether spin animation is enabled.

Definition at line 712 of file SoWinExaminerViewer.h.

isFeedbackVisible()

SbBool SoWinExaminerViewer::isFeedbackVisible ( ) const

inline

Returns the rotation feedback flag.

Definition at line 688 of file SoWinExaminerViewer.h.

panCamera()

virtual void SoWinExaminerViewer::panCamera ( const SbVec2f &  newLocator )

virtual

Pans the camera based on cursor motion.

Parameters

newLocator

The new cursor position. The coordinates are in normalized device coordinates with x and y in the range [0,1] with min y at the bottom and min x on the left.

removeFunctionKeyBinding()

virtual void SoWinExaminerViewer::removeFunctionKeyBinding ( SoKeyboardEvent::Key  functionKey )

virtual

Removes the specified function key binding (if it exists).

removeViewingMouseBinding()

virtual void SoWinExaminerViewer::removeViewingMouseBinding ( SoKeyboardEvent::Key *  keys = NULL, int  numKeys = 0, SoMouseButtonEvent::Button *  mouseBtn = NULL, int  numMouseBtn = 0  )

virtual

Removes a mouse binding (if it exists).

The key and button order is important. For example, CTRL+SHIFT+BT1 is different from SHIFT+CTRL+BT1. Likewise, CTRL+BT1+BT2 is different from CTRL+BT2+BT1.

resetToHomePosition()

virtual void SoWinExaminerViewer::resetToHomePosition ( )

virtual

Restores the camera values.

Reimplemented from SoWinViewer.

reverseDollyCamera()

virtual void SoWinExaminerViewer::reverseDollyCamera ( const SbVec2s &  newLocator )

virtual

Same as dollyCamera but reversed.

Parameters

newLocator

The new cursor position. The coordinates are in pixels with x in the range [0,window width-1] and y in the range [0,window height-1] with min y at the bottom and min x on the left.

rollCamera()

virtual void SoWinExaminerViewer::rollCamera ( const SbVec2s &  newLocator )

virtual

Roll the camera based on cursor motion.

Parameters

newLocator

The new cursor position. The coordinates are in pixels with x in the range [0,window width-1] and y in the range [0,window height-1] with min y at the bottom and min x on the left.

setAnimationEnabled()

void SoWinExaminerViewer::setAnimationEnabled

(

SbBool

onOrOff

)

Enables/disables the spin animation feature of the viewer (enabled by default).

The default value can be set using the environment variable OIV_VIEWER_ANIMATION (0 = OFF, 1 = ON).

setCamera()

virtual void SoWinExaminerViewer::setCamera ( SoCamera *  cam )

virtual

Sets the camera that will be controlled by the viewer.

Setting the camera is only needed if the first camera found in the scene when setting the scene graph isn't the one that should be controlled.

Reimplemented from SoWinFullViewer.

setConstrainedViewingMode()

void SoWinExaminerViewer::setConstrainedViewingMode

(

ConstrainedViewingMode

mode

)

Sets the constrained viewing mode.

This method is useful to associate a key combination with a constrained mode. Notes:

• There is no need to set the viewing mode to VIEWING_MODE_SPIN_CONSTRAINED to apply a constraint.
• When the constrained mode is set to NONE, the automatic constraints apply if VIEWING_MODE_SPIN_CONSTRAINED is set.
• This setting is a "one shot". It only applies to the next mouse button down event.

setCursorEnabled()

virtual void SoWinExaminerViewer::setCursorEnabled ( SbBool  onOrOff )

virtual

Sets whether the viewer is allowed to change the cursor over the renderArea window.

When disabled, the cursor is undefined by the viewer and will not change as the mode of the viewer changes. When re-enabled, the viewer will reset it to the appropriate icon.

Disabling the cursor enables the application to set the cursor directly on the viewer window or on any parent widget of the viewer. This can be used when setting a busy cursor on the application shell.

Reimplemented from SoWinViewer.

setFeedbackSize()

void SoWinExaminerViewer::setFeedbackSize

(

int

newSize

)

Sets the point of rotation feedback size in pixels (default 20 pix).

setFeedbackVisibility()

void SoWinExaminerViewer::setFeedbackVisibility

(

SbBool

onOrOff

)

Shows/hides the point of rotation feedback, which only appears while in viewing mode (default is off).

setSeekMode()

virtual void SoWinExaminerViewer::setSeekMode ( SbBool  onOrOff )

virtual

Externally set the viewer into/out off seek mode (default OFF).

Actual seeking will not happen until the viewer decides to (ex: mouse click).

Note: setting the viewer out of seek mode while the camera is being animated will stop the animation to the current location.

Reimplemented from SoWinViewer.

setViewing()

virtual void SoWinExaminerViewer::setViewing ( SbBool  onOrOff )

virtual

Sets whether the viewer is turned on or off.

When turned on, messages are consumed by the viewer. When viewing is off, messages are processed by the viewer's render area. This means messages will be sent down to the scene graph for processing (i.e. picking can occur). Note that if the application has registered a message callback , it will be invoked on every message, whether viewing is turned on or not. However, the return value of this callback (which specifies whether the callback handled the message or not) is ignored when viewing is on. That is, the viewer will process the message even if the callback already did. This is to ensure that the viewing paradigm is not broken (default viewing is on).

Reimplemented from SoWinFullViewer.

setViewingMode()

void SoWinExaminerViewer::setViewingMode

(

ViewingMode

viewingMode

)

Sets the viewing mode.

This method specifies what is the viewing behavior when the left mouse is pressed. The default value is SPIN_VIEWING_MODE.

spinCamera()

virtual void SoWinExaminerViewer::spinCamera ( const SbVec2f &  newLocator )

virtual

Spin the camera based on cursor motion.

Parameters

newLocator

The new cursor position. The coordinates are in normalized device coordinates with x and y in the range [0,1] with min y at the bottom and min x on the left.

spinConstrainedCamera()

virtual void SoWinExaminerViewer::spinConstrainedCamera ( const SbVec2f &  newLocator, int  axisIndex  )

virtual

Spin the constrained camera based on cursor motion.

Parameters

newLocator	The new cursor position. The coordinates are in normalized device coordinates with x and y in the range [0,1] with min y at the bottom and min x on the left.
axisIndex	the axis index: X = 0 Y = 1 Z = 2

stopAnimating()

void SoWinExaminerViewer::stopAnimating

(

)

Stops animation, if it is occurring.

viewAll()

virtual void SoWinExaminerViewer::viewAll ( )

virtual

Changes the camera position to view the entire scene (the camera zoom or orientation isn't changed).

The viewer applies an SoGetBoundingBoxAction to the scene graph to get bounding box of the entire scene. The bounding box will only include shapes that are actually traversed. For example the bounding box will not include shapes under an SoSwitch with whichChild set to SO_SWITCH_NONE. The action does not consider the visibility of shapes that are traversed. In other words the bounding box will include shapes that are invisible (SoDrawStyle), shapes that are clipped (SoClipPlane), etc. Use an SoBBox node to exclude shapes from the bounding box computation. Bounding boxes are automatically cached at SoSeparator nodes, so getting the bounding box is very fast when the scene graph has not been changed.

See all SoCamera::viewAll(). This method allows the application to adjust the camera based on a specific sub-graph or path in the scene graph.

Reimplemented from SoWinViewer.

---

The documentation for this class was generated from the following file:

• Inventor/Win/viewers/SoWinExaminerViewer.h