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QT+OSG+osg-earth显示一个球

article 2024/9/22 10:00:10

1、环境配置

2、在QT Creator导入相关的库

3、代码部分

4、运行过程中的问题

5、相关参考

重要衔接：QT+OSG显示一个三维模型-CSDN博客

1、环境配置

系统：windows10系统

QT:版本5.15.2 编译器：MSVC2019_64bit 编辑器：QT Creator

OSG版本：3.7.0 64位为MSVC环境下编译

osgQt:为第三方编译的库，OSG因为版本不同已经不提供osgQt的封装。

osg-earth版本: 3.6.0

2、在QT Creator导入相关的库

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/osg370MSVC2019_64bit/OSG/lib/ -losg  -losgDB -losgUtil  -losgViewer  -losgGA   -losgWidget   -lOpenThreads
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/osg370MSVC2019_64bit/OSG/lib/ -losgd  -losgDBd -losgUtild  -losgViewerd  -losgGAd  -losgWidgetd -lOpenThreadsd
else:unix: LIBS += -L$$PWD/osg370MSVC2019_64bit/OSG/lib/ -losg  -losgDB -losgUtil  -losgViewer  -losgGA  -losgWidget   -lOpenThreads

INCLUDEPATH += $$PWD/osg370MSVC2019_64bit/OSG/include
DEPENDPATH += $$PWD/osg370MSVC2019_64bit/OSG/include



win32:CONFIG(release, debug|release): LIBS += -L$$PWD/osgQtVC2019_64bit/vs2019_x64_osgQt/osgQt/lib/ -losgQOpenGL
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/osgQtVC2019_64bit/vs2019_x64_osgQt/osgQt/lib/ -losgQOpenGLd
else:unix: LIBS += -L$$PWD/osgQtVC2019_64bit/vs2019_x64_osgQt/osgQt/lib/ -losgQOpenGL

INCLUDEPATH += $$PWD/osgQtVC2019_64bit/vs2019_x64_osgQt/osgQt/include
DEPENDPATH += $$PWD/osgQtVC2019_64bit/vs2019_x64_osgQt/osgQt/include



win32:CONFIG(release, debug|release): LIBS += -L$$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/lib/ -losgEarth
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/lib/ -losgEarthd
else:unix: LIBS += -L$$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/lib/ -losgEarth

INCLUDEPATH += $$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/include
DEPENDPATH += $$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/include



win32:CONFIG(release, debug|release): LIBS += -L$$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/lib/ -losgEarth
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/lib/ -losgEarthd
else:unix: LIBS += -L$$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/lib/ -losgEarth

INCLUDEPATH += $$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/include
DEPENDPATH += $$PWD/vs2019_x64_osgearth_3.6.0/OSGEARTH/include

一个是osg的库，一个是osgQt的库，一个是osg-earth的库。

3、代码部分

main.cpp

#include <QCoreApplication>
#include <QApplication>
#include <QDir>
//#include "osgshowwidget.h"
#include <osgEarth/Map>
#include <osgEarth/MapNode>
#include <osgEarth/EarthManipulator>
#include <osgEarth/MapNode>
#include <osgEarth/TMS>
#include <osgEarth/EarthManipulator>
#include <osg/ArgumentParser>
#include <osgViewer/Viewer>

#include <QWidget>
#include <osgViewer/Viewer>
#include <osg/Node>
#include <osgDB/ReadFile>
#include <osgGA/TrackballManipulator>
#include<osgGA/FlightManipulator>
#include <osgViewer/View>
#include <osgQOpenGL/osgQOpenGLWidget>

#include <osg/Timer>
#include <osg/ArgumentParser>
#include <osgGA/CameraManipulator>

int main(int argc, char *argv[])
{
        QApplication a(argc, argv);

//    // 获取可执行文件的目录
        QString exeDir = QCoreApplication::applicationDirPath();
        QDir::setCurrent(exeDir);

   //osgShowWidget w;
  //  w.show();


    // 初始化osgViewer
    // 初始化osgEarth
    osgEarth::initialize();
    osg::ArgumentParser args(&argc, argv);

    // 创建Viewer实例
    osgViewer::Viewer viewer(args);

    // 使用相对于exe的相对路径来构建.earth文件的完整路径
    QString relativeEarthFilePath = "Maps/ocean.earth";  // 请替换为你实际的.earth文件相对路径
    QString earthFilePath = exeDir + "/" + relativeEarthFilePath;

    // 请替换为你实际的.earth文件路径
    osg::ref_ptr<osg::Node> earthNode = osgDB::readNodeFile(earthFilePath.toStdString());

    if (!earthNode) {
        std::cerr << "Failed to load .earth file: " << earthFilePath.toStdString() << std::endl;
        return -1;  // 如果加载失败，返回错误码
    }

    // 设置场景数据为加载的.earth文件
    viewer.setSceneData(earthNode.get());

    // 设置地球操控器
    viewer.setCameraManipulator(new osgEarth::Util::EarthManipulator(args));

    // 运行Viewer
    return viewer.run();



    //return a.exec();
}

运行结果：