Qt Components(3) SoQt Qt Components(3)NAME
Qt Components -
Classes
class SoQtGLWidget
The SoQtGLWidget class manages OpenGL contexts.
This is the basic, abstract component class which sets up an OpenGL canvas for its subclasses. "
class SoQtRenderArea
The SoQtRenderArea class adds scenegraph handling and event management.
The SoQtRenderArea class is a component that adds scenegraph management and input device event handling to the SoQtGLWidget component. "
class SoQtConstrainedViewer
The SoQtConstrainedViewer class is the superclass for viewers with constrains on the viewpoint.
This abstract viewer class adds new methods to keep the camera in an upright position according to some arbitrary up-direction. The up-
direction can be decided by either the application programmer (by using SoQtConstrainedViewer::setUpDirection()) or the end-user, through
interaction mechanisms defined by the subclasses. "
class SoQtExaminerViewer
The SoQtExaminerViewer class is a 3D-model examination viewer.
This class is the viewer considered to be the most 'general purpose' viewer, and it is often used in rapid prototyping to examine simple
models aswell as complete scenes (although for the latter, you might be better off with one of the other viewer classes). "
class SoQtFullViewer
The SoQtFullViewer class adds some user interface components to the viewer canvas.
The SoQtFullViewer is an abstract viewer class which extends it's superclass (the basic SoQtViewer class) with two major user interface
additions: "
class SoQtPlaneViewer
The SoQtPlaneViewer class is for examining 3D models by moving the camera in orthogonal planes.
The SoQtPlaneViewer is a viewer that is useful for 'CAD-style' applications, where you want the end-user to examine your model with the
viewpoint set from one of the three principal axes. "
class SoQtViewer
The SoQtViewer class is the top level base viewer class.
This is an abstract class, which adds the following features to it's SoQtRenderArea superclass: convenient methods for camera handling, an
automatic headlight configuration. "
Author
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Version 1.5.0 Sun Dec 11 2011 Qt Components(3)
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SoQtConstrainedViewer(3) SoQt SoQtConstrainedViewer(3)NAME
SoQtConstrainedViewer -
The SoQtConstrainedViewer class is the superclass for viewers with constrains on the viewpoint.
This abstract viewer class adds new methods to keep the camera in an upright position according to some arbitrary up-direction. The up-
direction can be decided by either the application programmer (by using SoQtConstrainedViewer::setUpDirection()) or the end-user, through
interaction mechanisms defined by the subclasses.
SYNOPSIS
#include <Inventor/Qt/viewers/SoQtConstrainedViewer.h>
Inherits SoQtFullViewer.
Inherited by SoQtFlyViewer.
Public Member Functions
void setUpDirection (const SbVec3f &dir)
const SbVec3f & getUpDirection (void) const
virtual void setCamera (SoCamera *newcam)
virtual void saveHomePosition (void)
virtual void resetToHomePosition (void)
Protected Member Functions
SoQtConstrainedViewer (QWidget *parent, const char *const name, SbBool embed, SoQtFullViewer::BuildFlag flag, SoQtViewer::Type type, SbBool
build)
~SoQtConstrainedViewer ()
virtual void tiltCamera (float delta)
virtual void bottomWheelMotion (float value)
virtual void leftWheelMotion (float value)
virtual void changeCameraValues (SoCamera *camera)
void findUpDirection (SbVec2s mouselocation)
void checkForCameraUpConstrain (void)
Detailed Description
The SoQtConstrainedViewer class is the superclass for viewers with constrains on the viewpoint.
This abstract viewer class adds new methods to keep the camera in an upright position according to some arbitrary up-direction. The up-
direction can be decided by either the application programmer (by using SoQtConstrainedViewer::setUpDirection()) or the end-user, through
interaction mechanisms defined by the subclasses.
Constructor &; Destructor Documentation
SoQtConstrainedViewer::SoQtConstrainedViewer (QWidget *parent, const char *constname, SbBoolembed, SoQtFullViewer::BuildFlagflag,
SoQtViewer::Typetype, SbBoolbuild) [protected] Constructor.
References SoQtFullViewer::buildWidget(), SoQtComponent::getParentWidget(), SoQtComponent::setBaseWidget(),
SoQtFullViewer::setBottomWheelString(), SoQtComponent::setClassName(), SoQtFullViewer::setLeftWheelString(), and
SoQtFullViewer::setRightWheelString().
SoQtConstrainedViewer::~SoQtConstrainedViewer () [protected] Virtual destructor.
Member Function Documentation
void SoQtConstrainedViewer::setUpDirection (const SbVec3f &dir) Set up-direction vector for the camera viewpoint.
References checkForCameraUpConstrain(), and SoQtViewer::getCamera().
Referenced by findUpDirection().
const SbVec3f & SoQtConstrainedViewer::getUpDirection (void) const Return up-direction vector for the camera viewpoint.
Referenced by tiltCamera().
void SoQtConstrainedViewer::setCamera (SoCamera *cam) [virtual] Set the camera we want the viewer to manipulate when interacting with the
viewer controls.
The camera passed in as an argument to this method must already be part of the viewer's scenegraph. You do not inject viewpoint cameras to
the viewer with this method.
You should rather insert a camera into the scene graph first (if necessary, often one will be present already), then register it as the
camera used by the viewer controls with this method.
If the application code doesn't explicitly set up a camera through this method, the viewer will automatically scan through the scenegraph
to find a camera to use. If no camera is available in the scenegraph at all, it will set up it's own camera.
See also:
getCamera()
Reimplemented from SoQtViewer.
Reimplemented in SoQtFlyViewer.
References checkForCameraUpConstrain().
void SoQtConstrainedViewer::saveHomePosition (void) [virtual] Store the current camera settings for later retrieval with resetToHomePosition().
See also:
resetToHomePosition()
Reimplemented from SoQtViewer.
void SoQtConstrainedViewer::resetToHomePosition (void) [virtual] Restore the saved camera settings.
See also:
saveHomePosition()
Reimplemented from SoQtViewer.
Reimplemented in SoQtFlyViewer.
void SoQtConstrainedViewer::tiltCamera (floatdelta) [protected, virtual] This method tilts the camera delta degrees closer to the up direction.
References SoQtViewer::getCamera(), and getUpDirection().
Referenced by leftWheelMotion().
void SoQtConstrainedViewer::bottomWheelMotion (floatvalue) [protected, virtual] Called repeatedly as the user drags the thumbwheel in the
bottom frame. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.
See also:
bottomWheelStart(), bottomWheelFinish()
leftWheelStart(), rightWheelStart()
Reimplemented from SoQtFullViewer.
References SoQtFullViewer::getBottomWheelValue().
void SoQtConstrainedViewer::leftWheelMotion (floatvalue) [protected, virtual] Called repeatedly as the user drags the thumbwheel in the left
frame. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.
See also:
leftWheelStart(), leftWheelFinish()
bottomWheelStart(), rightWheelStart()
Reimplemented from SoQtFullViewer.
References SoQtFullViewer::getLeftWheelValue(), and tiltCamera().
void SoQtConstrainedViewer::changeCameraValues (SoCamera *camera) [protected, virtual] Copies the settings of camera into our current camera.
Cameras must be of the same class type.
Reimplemented from SoQtViewer.
References checkForCameraUpConstrain().
void SoQtConstrainedViewer::findUpDirection (SbVec2smouselocation) [protected] Executes a raypick at the given mousepointer location and sets
the viewer's camera up-vector direction to the normal vector of the picked geometry.
References SoQtRenderArea::getSceneManager(), SoQtRenderArea::getViewportRegion(), and setUpDirection().
void SoQtConstrainedViewer::checkForCameraUpConstrain (void) [protected] If necessary, 'tilts' the camera sideways so the up-direction is
heeded.
References SoQtViewer::getCamera().
Referenced by changeCameraValues(), setCamera(), and setUpDirection().
Author
Generated automatically by Doxygen for SoQt from the source code.
Version 1.5.0 Sun Dec 11 2011 SoQtConstrainedViewer(3)