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NAME
SoTrackballManip -
The SoTrackballManip wraps an SoTrackballDragger for convenience.
SYNOPSIS
#include <Inventor/manips/SoTrackballManip.h>
Inherits SoTransformManip.
Public Member Functions
virtual SoType getTypeId (void) const
Returns the type identification of an object derived from a class inheriting SoBase. This is used for
run-time type checking and 'downward' casting.
SoTrackballManip (void)
Static Public Member Functions
static SoType getClassTypeId (void)
static void initClass (void)
Protected Member Functions
virtual const SoFieldData * getFieldData (void) const
virtual ~SoTrackballManip (void)
Static Protected Member Functions
static const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members
Detailed Description
The SoTrackballManip wraps an SoTrackballDragger for convenience.
The manipulator class takes care of wrapping up the SoTrackballDragger in a simple and convenient API for
the application programmer, making it automatically surround the geometry it influences and taking care
of the book-keeping routines for it's interaction with the relevant fields of an SoTransformation node.
Here's a dead simple, stand-alone example on how to set up an SoTrackballManip in a scenegraph:
#include <Inventor/Qt/SoQt.h>
#include <Inventor/Qt/viewers/SoQtExaminerViewer.h>
#include <Inventor/nodes/SoCone.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/manips/SoTrackballManip.h>
int
main(int argc, char* argv[])
{
QWidget * mainwin = SoQt::init(argv[0]);
SoSeparator * root = new SoSeparator;
root->ref();
SoTrackballManip * manip = new SoTrackballManip;
root->addChild(manip);
root->addChild(new SoCone);
SoQtExaminerViewer * viewer = new SoQtExaminerViewer(mainwin);
viewer->setSceneGraph(root);
SoQt::show(mainwin);
SoQt::mainLoop();
root->unref();
return 0;
}
Compile and hit 'ESC' to go into scenegraph interaction mode in the examinerviewer, then change the
rotation of the cone by interacting with the dragger bands.
Constructor & Destructor Documentation
SoTrackballManip::SoTrackballManip (void)
Default constructor. Allocates an SoTrackballDragger and an SoSurroundScale node to surround the geometry
within our part of the scenegraph.
SoTrackballManip::~SoTrackballManip (void) [protected], [virtual]
Destructor.
Member Function Documentation
SoType SoTrackballManip::getTypeId (void) const [virtual]
Returns the type identification of an object derived from a class inheriting SoBase. This is used for
run-time type checking and 'downward' casting. Usage example:
void foo(SoNode * node)
{
if (node->getTypeId() == SoFile::getClassTypeId()) {
SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type
}
}
For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or
others: this method needs to be overridden in all subclasses. This is typically done as part of setting
up the full type system for extension classes, which is usually accomplished by using the pre-defined
macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and
SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.
For more information on writing Coin extensions, see the class documentation of the toplevel superclasses
for the various class groups.
Reimplemented from SoTransformManip.
const SoFieldData * SoTrackballManip::getFieldData (void) const [protected], [virtual]
Returns a pointer to the class-wide field data storage object for this instance. If no fields are
present, returns NULL.
Reimplemented from SoTransformManip.
Author
Generated automatically by Doxygen for Coin from the source code.
Version 4.0.0a Wed Feb 26 2014 SoTrackballManip(3)