使用QT Creator新建一个窗口项目。
编辑pro文件
cpp
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
CONFIG += c++11
DEFINES += QT_DEPRECATED_WARNINGS
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
main.cpp \
mainwindow.cpp
HEADERS += \
mainwindow.h
FORMS += \
mainwindow.ui
#osg osgQt
INCLUDEPATH += "D:\coding\osgearth\osgearth-vcpkg-installed\installed\x86-windows\include"
INCLUDEPATH += "D:\coding\osgearth\osgQt-master\include"
INCLUDEPATH += "D:\coding\osgearth\osgQt-master\build-win32\src"
INCLUDEPATH += "D:\coding\osgearth\osgQt-master\build-win32\include"
INCLUDEPATH += "D:\coding\osgearth\osgQt-master\build-win32\include"
LIBS += -L"D:\coding\osgearth\osgearth-vcpkg-installed\installed\x86-windows\lib" -losg -losgUtil -losgViewer -losgGA -losgDB -lOpenThreads -lopengl32
LIBS += -L"D:\coding\osgearth\osgQt-master\build-win32\lib" -losgQOpenGL
#osgEarth
INCLUDEPATH += "D:\coding\osgearth\osgearth-vcpkg-installed\installed\x86-windows\include"
LIBS += -L"D:\coding\osgearth\osgearth-vcpkg-installed\installed\x86-windows\lib" -losgEarth
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
编辑main.cpp
cpp
#include "mainwindow.h"
#include <QApplication>
#include <osgQOpenGL/osgQOpenGLWidget>
#include <osgDB/ReadFile>
#include <osgUtil/Optimizer>
#include <osg/CoordinateSystemNode>
#include <osg/Switch>
#include <osg/Types>
#include <osgText/Text>
#include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgGA/KeySwitchMatrixManipulator>
#include <osgGA/StateSetManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/TerrainManipulator>
#include <osgGA/SphericalManipulator>
#include <osgGA/Device>
#include <QSurfaceFormat>
#include <iostream>
using std::cout;
using std::endl;
#include <string>
using std::string;
//osgEarth
#include <osgViewer/Viewer>
#include <osgEarth/Notify>
#include <osgEarth/EarthManipulator>
#include <osgEarth/ExampleResources>
#include <osgEarth/MapNode>
#include <osgEarth/Threading>
#include <osgEarth/GDAL>
#include <osgEarth/ImageLayer>
using namespace osgEarth;
using namespace osgEarth::Util;
#include <osgEarth/Metrics>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
osgEarth::initialize();
osg::ArgumentParser arguments(&argc, argv);
osgQOpenGLWidget widget(&arguments);
QObject::connect(&widget, &osgQOpenGLWidget::initialized,[&arguments,&widget]
{
widget.getOsgViewer()->setCameraManipulator( new EarthManipulator(arguments) );
widget.getOsgViewer()->getCamera()->setSmallFeatureCullingPixelSize(-1.0f);
string tifFile = "D:/coding/osgearth/world.tif";
osgEarth::Map* map = new osgEarth::Map() ;
osgEarth::GDALImageLayer::Options gdalOpt ;
gdalOpt.url() = tifFile ;
osgEarth::GDALImageLayer* imgLayer = new osgEarth::GDALImageLayer(gdalOpt);
if( imgLayer==0 ){
return 20 ;
}else{
cout<<"good gdal layer."<<endl;
}
map->addLayer(imgLayer ) ;
MapNode* mapNode = new MapNode(map);
if(!mapNode)
{
std::cout << "bad map node." << std::endl;
return 1;
}
widget.getOsgViewer()->setSceneData(mapNode);
return 0;
});
MainWindow w;
w.setCentralWidget(&widget);
w.show();
return a.exec();
}
以Release模式编译执行,然后参考前一篇笔记,拷贝相关依赖项进入exe目录。再次运行。
此时运行会提示错误
FTH: (7640): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***
Error reading file .osgearth_engine_rex: file not handled
[osgEarth]* WARNING: Failed to load terrain engine driver for "rex"
[osgEarth]* FAILED to create a terrain engine for this map
原因是没有加载到osgEarth的plugins动态库,之前我们是osg的plugins都考过来了,现在到下面目录
把里面dll都拷贝到exe目录下的osgPlugins-3.6.5目录下即可。
运行结果如下: