#pragma once

#include <osgViewer/Viewer>

#include <osgViewer/ViewerEventHandlers>

#include <osgViewer/CompositeViewer>

#include <osgDB/ReadFile>

#include <osg/Geode>

#include <osg/Node>

#include <osgGA/TrackballManipulator>

#include <osg/GraphicsContext>

#include <osg/ShapeDrawable>

#include <osg/Material>

#include <osg/Image>

#include <osg/Texture2D>

#include <osg/TexEnv>

#include <osg/TexGen>

#include <osg/MatrixTransform>

#include <osg/PositionAttitudeTransform>

#include <osg/AnimationPath>

#include <osg/Matrixd>

#include <osgGA/GUIEventHandler>

#include <osgGA/CameraManipulator>

#include <osgGA/StandardManipulator>

#include <osgGA/OrbitManipulator>

#include <osgGA/TrackballManipulator>

class VCTravel :

    //public MatrixManipulator

    public osgGA::CameraManipulator

{

public:

    VCTravel();

    ~VCTravel();

    //设置当前视口

    virtual void setByMatrix(const osg::Matrixd& matrix);

    //

    virtual void setByInverseMatrix(const osg::Matrixd& matrix);

    //获取

    virtual osg::Matrixd getMatrix() const;

    //得到矩阵逆

    virtual osg::Matrixd getInverseMatrix() const;

private:

    //视点

    osg::Vec3 vec_position;

    //方向

    osg::Vec3 vec_rotation;

};

#include "VCTravel.h"

VCTravel::VCTravel()

{

    vec_position = osg::Vec3(0.0,0.0,0.0);

    vec_rotation = osg::Vec3(0.0, 0.0, 0.0);

}

VCTravel::~VCTravel()

{

}

//设置当前视口

void VCTravel::setByMatrix(const osg::Matrixd& matrix)

{

}

//

void VCTravel::setByInverseMatrix(const osg::Matrixd& matrix)

{

}

//获取

osg::Matrixd VCTravel::getMatrix() const

{

    osg::Matrixd mat;

    mat.makeTranslate(vec_position);

    return mat*osg::Matrixd::rotate(vec_rotation[], osg::X_AXIS, vec_rotation[], osg::Y_AXIS, vec_rotation[], osg::Z_AXIS);

}

//得到矩阵逆

osg::Matrixd VCTravel::getInverseMatrix() const

{

    osg::Matrixd mat;

    mat.makeTranslate(vec_position);

    //return mat*osg::Matrixd::rotate(vec_rotation[0], osg::X_AXIS, vec_rotation[1], osg::Y_AXIS, vec_rotation[2], osg::Z_AXIS);

    return osg::Matrixd::inverse(mat*osg::Matrixd::rotate(vec_rotation[], osg::X_AXIS, vec_rotation[], osg::Y_AXIS, vec_rotation[], osg::Z_AXIS));

}