FGFS-4.1/OpenSceneGraph
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Added support for recording camera animation paths in osgGLUT::Viewer, and fixed

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the osgGA::AnimationPathManipulator to handle it.

Added a new Drawable::ConstAttributeFunctor and make the accept(PrimitiveFunctor)
be a const method so can disallows modification.  Added Drawable::supports(...) methods
for each of the AttributeFunctor, ConstAttributeFunctor and PrimitiveFunctor so
that programs can querry whether it is possible to use functors with that object type.
This commit is contained in:
Robert Osfield
2002-11-06 10:24:33 +00:00
parent afa27a13ec
commit 5eb65f65cc
21 changed files with 422 additions and 115 deletions
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45
src/osgGA/AnimationPathManipulator.cpp
View File

@@ -6,6 +6,8 @@ using namespace osgGA;
AnimationPathManipulator::AnimationPathManipulator(osg::AnimationPath* animationPath)
{
_animationPath = animationPath;
_timeOffset = 0.0f;
_timeScale = 1.0f;
}
AnimationPathManipulator::AnimationPathManipulator( const std::string& filename )
@@ -35,6 +37,19 @@ AnimationPathManipulator::AnimationPathManipulator( const std::string& filename
fclose(fp);
}
void AnimationPathManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter&)
{
if (_animationPath.valid())
{
_timeOffset = _animationPath->getFirstTime()-ea.time();
}
}
void AnimationPathManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& aa)
{
home(ea,aa);
}
bool AnimationPathManipulator::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& us)
{
if( !valid() ) return false;
@@ -49,6 +64,15 @@ bool AnimationPathManipulator::handle(const osgGA::GUIEventAdapter& ea,osgGA::GU
retval = true;
break;
case GUIEventAdapter::KEYBOARD:
if (ea.getKey()==' ')
{
home(ea,us);
us.requestRedraw();
us.requestContinuousUpdate(false);
return true;
}
return false;
retval = false;
break;
default:
@@ -60,17 +84,14 @@ bool AnimationPathManipulator::handle(const osgGA::GUIEventAdapter& ea,osgGA::GU
void AnimationPathManipulator::handleFrame( double time )
{
osg::AnimationPath::ControlPoint cp;
_animationPath->getInterpolatedControlPoint( time, cp );
_animationPath->getInterpolatedControlPoint( (time+_timeOffset)*_timeScale, cp );
osg::Matrix mat;
cp.getMatrix( mat );
osg::Vec3 eye(mat(3,0), mat(3,1), mat(3,2));
mat(3,0) = 0.0;
mat(3,1) = 0.0;
mat(3,2) = 0.0;
osg::Vec3 look = eye + (osg::Vec3(0,1,0) * mat);
osg::Vec3 up = osg::Vec3(0,0,1) * mat;
if( _camera.valid() )
_camera->setView( eye, look, up );
osg::Matrix matrix;
cp.getMatrix( matrix );
if (_camera.valid())
{
_camera->home();
_camera->transformLookAt(matrix);
}
}