[osg-users] How to Control a 3D Point's Position with Mouse in a certain Plane.

[Mrs. Mister]

hello,

i worked with OSG 1.2 in the past. and the osgProducer had
function for obtaining the current position and rotation
(of the camera?). i used:

osgProducer::Viewer::getPosition()
osgProducer::Viewer::getOrientation()

and the relative mouse coordinates, obtained from:

osgGA::GUIEventHandler::handle(...)

with the help of:

osgGA::GUIEventAdapter
osgGA::GUIActionAdapter
.

now i updraded to osg 2.6 and i read trough the header files
of osgViewer::Viewer and View and osg::Camera. sadly i had
no idea where to start or how the procedure for obtaining
the position and orientation of the actual Camera, View is?

maybe some one can point me in the right direction ...

thx and bye
henry

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Re: [osg-users] How to Control a 3D Point's Position with Mouse in a certain Plane.

[Alberto Luaces]

Hi Henry,

El Jueves 23 Abril 2009ES 15:35:30 Mrs. Mister escribió:
 now i updraded to osg 2.6 and i read trough the header files
 of osgViewer::Viewer and View and osg::Camera. sadly i had
 no idea where to start or how the procedure for obtaining
 the position and orientation of the actual Camera, View is?

You could:

Viewer-getCamera(0)-getViewMatrix().decompose(translation, rotation, scale, 
scaleorientation);

See the method osg::Matrixd::decompose

HTH,

Alberto
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