Hi,
class Compass : public osg::Camera
{
public:
Compass();
Compass( const Compass& copy, osg::CopyOp
copyop=osg::CopyOp::SHALLOW_COPY );
META_Node( osg, Compass );
void setPlate( osg::MatrixTransform* plate ) {_plateTransform = plate; }
void setNeedle( osg::MatrixTransform* needle ) {_needleTransform =
needle; }
void setMainCamera( osg::Camera* camera ) {_mainCamera = camera; }
virtual void traverse( osg::NodeVisitor& nv );
protected:
virtual ~Compass();
osg::ref_ptr<osg::MatrixTransform> _plateTransform;
osg::ref_ptr<osg::MatrixTransform> _needleTransform;
osg::observer_ptr<osg::Camera> _mainCamera;
};
Compass::Compass( const Compass& copy, osg::CopyOp copyop ):osg::Camera(copy,
copyop),
_plateTransform(copy._plateTransform),
_needleTransform(copy._needleTransform),
_mainCamera(copy._mainCamera)
{
}
void Compass::traverse( osg::NodeVisitor& nv )
{
if ( _mainCamera.valid()
&&nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR )
{
osg::Matrix matrix = _mainCamera->getViewMatrix();
matrix.setTrans( osg::Vec3() );
osg::Vec3 northVec = osg::Z_AXIS * matrix;
northVec.z() = 0.0f;
northVec.normalize();
osg::Vec3 axis = osg::Y_AXIS ^ northVec;
float angle = atan2(axis.length(),
osg::Y_AXIS*northVec);axis.normalize();
if ( _plateTransform.valid() )
_plateTransform->setMatrix( osg::Matrix::rotate(angle, axis) );
}
_plateTransform->accept( nv );
_needleTransform->accept( nv );
osg::Camera::traverse( nv );
}
compass class created but it is showing linker errors due to missing of
library.How can i get that library file in osg.
...
Thank you!
Cheers,
Rambabu
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=69390#69390
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