VCTravel

#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[0], osg::X_AXIS, vec_rotation[1], osg::Y_AXIS, vec_rotation[2], 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[0], osg::X_AXIS, vec_rotation[1], osg::Y_AXIS, vec_rotation[2], osg::Z_AXIS));
}