OsgEarth开发笔记：Qt5.15.2在QtCreator集成Osg3.6.3+OsgEarth3.1+OsgQt的vs2019x64版本开发环境搭建

Posted 2022-01-15 长沙红胖子

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本文章博客地址：https://blog.csdn.net/qq21497936/article/details/122105565
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OSG、OSGEARTH三维开发专栏

上一篇：《OsgEarth开发笔记（三）：Osg3.6.3+OsgEarth3.1+vs2019x64开发环境搭建(下)》
下一篇：敬请期待…

前言

  本篇非常麻烦，博主用QtCreator作为IDE，因为Osg3.6.3放弃对osgQt的支持，集成起来比较繁琐。

前提

  基于前面三篇的基础上，才可以进行本篇。

Demo演示：Qt5.15.2+OSG3.6.3+OsgEarth3.1的QtCreator下的msvc2019x64版本

  

Demo运行程序下载

  QQ群：1047134658（点击“文件”搜索“osgEarth v1.0.0”，群内与博文同步更新）

OsgQt下载

  OsgQt地址：https://github.com/openscenegraph/osgQt
  QQ群：1047134658（点击“文件”搜索“osgQt”，群内与博文同步更新）

osgQt编译

步骤一：下载解压

  

步骤二：CMake配置

  

步骤三：CMake配置添加osg环境

  

步骤四：CMake配置添加Qt环境  

  

步骤五：CMake修改CMakeLists文件内容：

  
  还是出现错误：
  
  检查，并未发现错误
  
  继续深入    有一个路径填错了：  
  过了，继续配置：
  

  
  填入其他Qt路径：
  
  

步骤六：配置通过

  

步骤七：生成成功

  

步骤八：打开工程，进行编译

  
  编译各种问，尝试过多次后放弃，看其他博客是可以的。
  
  （后面的复杂，博主直接修改源码开始移植过去，直接加入工程方式，过程比较艰难，如果能编译好osgQt是最好的，改源码问题较多，需要的可联系博主获取，但是不免费，尊重劳动成果，禁止白嫖）

模块化

  

配置文件

OsgEarthWidget.pri

INCLUDEPATH += $$PWD
DEPENDPATH += $$PWD

QT += opengl

FORMS += \\
    $$PWD/OsgWidget.ui

HEADERS += \\
    $$PWD/OsgViewerWidget.h \\
    $$PWD/OsgWidget.h \\
    $$PWD/define.h \\
    $$PWD/osgQt/include/osgQOpenGL/Export.h

SOURCES += \\
    $$PWD/OsgViewerWidget.cpp \\
    $$PWD/OsgWidget.cpp \\
    $$PWD/define.cpp

# osg
INCLUDEPATH += $$PWD/osg3.6.3-vs2019/include
DEPENDPATH += $$PWD/osg3.6.3-vs2019/include

LIBS += -L$$PWD/osg3.6.3-vs2019/lib
LIBS += -lOpenThreads \\
        -losg \\
        -losgAnimation \\
        -losgDB \\
        -losgFX \\
        -losgGA \\
        -losgManipulator \\
        -losgParticle \\
        -losgPresentation \\
        -losgShadow \\
        -losgText \\
        -losgUI \\
        -losgUtil \\
        -losgViewer \\
        -losgVolume \\
        -losgWidget \\
#        -losgQt \\
        -losgSim \\
        -losgTerrain

# osgQt
INCLUDEPATH += $$PWD/osgQt/include
DEPENDPATH += $$PWD/osgQt/include

HEADERS += \\
    $$PWD/osgQt/include/osgQOpenGL/CullVisitorEx \\
    $$PWD/osgQt/include/osgQOpenGL/GraphicsWindowEx \\
    $$PWD/osgQt/include/osgQOpenGL/OSGRenderer \\
    $$PWD/osgQt/include/osgQOpenGL/RenderStageEx \\
    $$PWD/osgQt/include/osgQOpenGL/StateEx \\
    $$PWD/osgQt/include/osgQOpenGL/osgQOpenGLWidget \\
    $$PWD/osgQt/include/osgQOpenGL/osgQOpenGLWindow

SOURCES += \\
    $$PWD/osgQt/include/osgQOpenGL/CullVisitorEx.cpp \\
    $$PWD/osgQt/include/osgQOpenGL/GraphicsWindowEx.cpp \\
    $$PWD/osgQt/include/osgQOpenGL/OSGRenderer.cpp \\
    $$PWD/osgQt/include/osgQOpenGL/RenderStageEx.cpp \\
    $$PWD/osgQt/include/osgQOpenGL/StateEx.cpp \\
    $$PWD/osgQt/include/osgQOpenGL/osgQOpenGLWidget.cpp \\
    $$PWD/osgQt/include/osgQOpenGL/osgQOpenGLWindow.cpp


# osgEarth
INCLUDEPATH += $$PWD/osgearth3.1-vs2019/include

LIBS += -L$$PWD/osgearth3.1-vs2019/lib
LIBS += -losgEarth

Demo源码

osg::ref_ptr<osg::Node> OsgWidget::getEarthSphiere()

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

    osgEarth::initialize();

    const char* styles_css =
    R"(
        p 
            altitude-clamping: terrain-drape;
            render-backface-culling: false;
        
        p1: p fill: #ff3f3f9f; 
        p2: p fill: #3fff3f9f; 
        p3: p fill: #3f3fff9f; 
        p4: p fill: #ff3fff9f; 
        p5: p fill: #ffff3f9f; 
    )";

    const char* script_source =
    R"(
        function getStyleClass()
        
            // Exclude any countries beginning with the letter A:
            if ( feature.properties.name.charAt(0) === 'A' )
                return null;

            // If it starts with the letter C, return an inline style:
            if ( feature.properties.name.charAt(0) == 'C' )
                return ' _fill: #ffc838; stroke: #8f8838; extrusion-height: 250000; ';

            // Otherwise, return a named style based on some calculations:
            var pop = parseFloat(feature.properties.pop);
            if      ( pop <= 14045470 )  return "p1";
            else if ( pop <= 43410900 )  return "p2";
            else if ( pop <= 97228750 )  return "p3";
            else if ( pop <= 258833000 ) return "p4";
            else                         return "p5";
        
    )";


    osg::ref_ptr<Map> map = new Map();

    GDALImageLayer* basemap = new GDALImageLayer();
    basemap->setURL("world.tif");
    map->addLayer(basemap);

    // Next we add a layer to provide the feature data.
    OGRFeatureSource* features = new OGRFeatureSource();
    features->setName("vector-data");
    features->setURL("world.shp");
    map->addLayer(features);

    Style style;

    LineSymbol* ls = style.getOrCreateSymbol<LineSymbol>();
    ls->stroke()->color() = Color::Yellow;
    ls->stroke()->width() = 2.0f;
    ls->tessellationSize()->set(100, Units::KILOMETERS);

    FeatureModelLayer* layer = new FeatureModelLayer();
    layer->setFeatureSource(features);

    StyleSheet* styleSheet = new StyleSheet();
    styleSheet->addStyle(style);

    layer->setStyleSheet(styleSheet);
    map->addLayer(layer);


    LayerVector layers;
    map->getLayers(layers);
    for (LayerVector::const_iterator i = layers.begin(); i != layers.end(); ++i)
    
        Layer* layer = i->get();
        if (layer->getStatus().isError() &&
            layer->getEnabled())
        
            OE_WARN << layer->getName() << " : " << layer->getStatus().toString() << std::endl;
        
    

    MapNode* mapNode = new MapNode(map.get());

    _pViewer->setCameraManipulator(new EarthManipulator());

    pGroup->addChild(mapNode);

    return pGroup.get();

工程模板

  osgEarthDemo_工程模板_v1.0.0_搭建好Qt+OSG+EARTH环境显示地球_QtCreaotr下的msvc2019x64版本.rar

上一篇：《OsgEarth开发笔记（三）：Osg3.6.3+OsgEarth3.1+vs2019x64开发环境搭建(下)》
下一篇：敬请期待…

若该文为原创文章，转载请注明原文出处
本文章博客地址：https://blog.csdn.net/qq21497936/article/details/122105565