#ifdef _WIN32

#include <Windows.h>

#endif // _WIN32

#include<iostream>

#include <osgViewer/Viewer>

#include <osgViewer/ViewerEventHandlers>

#include <osgViewer/CompositeViewer> 

#include <osgDB/ReadFile>

#include <osg/Geode>

#include <osg/Node>

#include <osg/Geometry>

#include <osg/GraphicsContext>

#include <osg/ShapeDrawable>

#include <osg/Material>

#include <osg/Image>

#include <osg/Texture2D>

#include <osg/TexEnv>

#include <osg/TexGen>

#include <osg/NodeVisitor>

#include <osg/MatrixTransform>

#include <osg/PositionAttitudeTransform>

#include <osg/AnimationPath>

#include <osg/Matrixd>

#include <osg/PagedLOD>

#include <osg/Camera>

#include <osgGA/TrackballManipulator>

#include <osgGA/GUIEventHandler>

#include <osgGA/CameraManipulator>

#include <osgGA/StandardManipulator>

#include <osgGA/OrbitManipulator>

#include <osgGA/TrackballManipulator>

#include <osgUtil/IntersectionVisitor>

#include <osgUtil/LineSegmentIntersector>

osg::ref_ptr<osg::Group> createCameras(osg::ref_ptr<osg::Node> node1)

{

    osg::ref_ptr<osg::Group> group1 = new osg::Group;

    unsigned int width, height;

    osg::ref_ptr<osg::Camera> camera1 = new osg::Camera;

    //osg::ref_ptr<osg::Node> node1 = osgDB::readNodeFile("D:\\参考手册\\BIM\\osg\\build20190628.osgb");

    //camera1->setGraphicsContext(graphics1);

    camera1->addChild(node1);

    camera1->setViewport(, , , );

    camera1->setClearColor(osg::Vec4(1.0, 1.0, 1.0, 0.0));

    camera1->setName("camera1");

    osg::ref_ptr<osg::Camera> cameraRight = new osg::Camera;

    osg::Vec3d eyeRight, centerRight, upRight;

    //修改相机参数

    eyeRight = osg::Vec3d(0.0, 0.0, 0.0);

    centerRight = osg::Vec3d(0.0, 1.0, 0.0);

    upRight = osg::Vec3d(0.0, 0.0, 0.0);

    cameraRight->addChild(node1);

    cameraRight->setViewport(, , , );

    cameraRight->setClearColor(osg::Vec4(1.0, 1.0, 1.0, 0.0));

    cameraRight->setName("camera2");

    //viewer->getCamera()->setViewMatrixAsLookAt(eye, center, up);

    //cameraRight->setViewMatrixAsLookAt(eyeRight, centerRight, upRight);

    cameraRight->setViewMatrix(osg::Matrix::rotate(osg::DegreesToRadians(-90.0),0.0,0.0,1.0));

    //viewer1->addSlave(camera1.get());

    group1->addChild(camera1.get());

    group1->addChild(cameraRight.get());

    return group1;

}

int main()

{

    osg::ref_ptr<osgViewer::Viewer> viewer1 = new osgViewer::Viewer;

    osg::ref_ptr<osg::Group> group1 = new osg::Group;

    //osg::ref_ptr<osg::Camera> camera1 = new osg::Camera;

    osg::ref_ptr<osg::Node> node1 = osgDB::readNodeFile("D:\\参考手册\\BIM\\osg\\build20190628.osgb");

    //osg::ref_ptr<osg::Node> node2 = osgDB::readNodeFile("D:\\参考手册\\BIM\\osg\\build20190628.osgb");

    //camera1->addChild(node1);

    //camera1->setViewport(0, 0, 300, 220);

    //camera1->setClearColor(osg::Vec4(0.0,0.0,0.0,0.0));

    group1->addChild(node1.get());

    //group1->addChild(camera1.get());

    group1->addChild(createCameras(node1));

    //createCameras1(node1, viewer1);

    viewer1->setSceneData(group1.get());

    //createCamera(viewer1);

    viewer1->setUpViewInWindow(, , , , );

    viewer1->run();

}