first commit

.gitignore

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+build
+*.pro.user*
+*/third_party
+!*/third_party/.gitkeep

210/210.pro

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+QT       += core gui widgets
+
+CONFIG += c++17
+
+# You can make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+    main.cpp
+
+HEADERS +=
+
+FORMS +=
+
+INCLUDEPATH += $$PWD/third_party/include
+LIBS += -L$$PWD/third_party/lib -losgViewerd \
+                    -losgd \
+                    -losgDBd \
+                    -losgUtild \
+                    -losgGAd \
+                    -losgEarthd \
+                    -losgEarthUtild \
+                    -lOpenThreadsd \
+                    -losgTextd \
+                    -losgEarthSymbologyd \
+                    -losgEarthAnnotationd \
+                    -losgEarthFeaturesd \
+                    -losgFXd \
+                    -losgWidgetd \
+                    -losgManipulatord
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

210/main.cpp

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+#include <osgEarth/Map>
+#include <osgEarthDrivers/gdal/GDALOptions>
+#include <osgEarthDrivers/mbtiles/MBTilesOptions>
+#include <osgEarthUtil/EarthManipulator>
+#include <osgViewer/Viewer>
+#include <QString>
+#include <QtGlobal>
+
+int main(int argc, char *argv[])
+{
+    Q_UNUSED(argc);
+    Q_UNUSED(argv);
+
+    osgViewer::Viewer viewer;
+
+    viewer.setUpViewInWindow(0, 100, 800, 600);
+
+    viewer.setReleaseContextAtEndOfFrameHint(false);
+
+    // 添加操作器
+    viewer.setCameraManipulator(new osgEarth::Util::EarthManipulator());
+
+    /// 在旧版本的osgEarth中需通过options来指定使用的哪种ImageLayer
+
+    // 创建GDAL图层
+    osgEarth::Drivers::GDALOptions options;
+    options.url() = osgEarth::URI("D:/Code/freespace/JGisEngine/data/image_3d_globel.tif");
+    osg::ref_ptr<osgEarth::ImageLayer> imagelayer = new osgEarth::ImageLayer(
+        osgEarth::ImageLayerOptions("gdal", options));
+
+    // 创建MB图层
+    osgEarth::Drivers::MBTilesTileSourceOptions mbOpt;
+    mbOpt.filename()
+        = "D:/Share/Map/MBTiles/satellite-google-gcj02-zxy-all-9-sc-15-cd-18-3h-21.mbtiles";
+    mbOpt.format() = "png";
+    mbOpt.computeLevels() = false;
+    mbOpt.maxDataLevel() = 21;
+    mbOpt.minValidValue() = 4;
+
+    osg::ref_ptr<osgEarth::ImageLayer> MBImagelayer = new osgEarth::ImageLayer(
+        osgEarth::ImageLayerOptions("mb", mbOpt));
+
+    //    string mbtilesFilename = "D:/codes/osgEarth-Projects/osgearth3.4/data/world_countries.mbtiles";
+
+    //    osg::ref_ptr<MBTilesImageLayer> mbtLayer = new MBTilesImageLayer();
+
+    //    mbtLayer->setURL(osgEarth::URI(mbtilesFilename));
+
+    //    osgEarth::GeoExtent mbtExtent = mbtLayer->getExtent();
+
+    // 添加图层到Map
+    osg::ref_ptr<osgEarth::Map> map = new osgEarth::Map();
+
+    //    map->addImageLayer(imagelayer);
+    map->addImageLayer(MBImagelayer);
+
+    // 添加Map到Node
+    osg::ref_ptr<osgEarth::MapNode> mapNode = new osgEarth::MapNode(map);
+
+    // 添加到场景
+    viewer.setSceneData(mapNode);
+
+    viewer.realize();
+
+    return viewer.run();
+}

320/320.pro

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+QT       += core gui widgets
+
+CONFIG += c++17
+
+HEADERS +=
+
+SOURCES += \
+    main.cpp
+
+INCLUDEPATH += $$PWD/third_party/include
+LIBS += -L$$PWD/third_party/lib -losgViewerd \
+                                -losgd \
+                                -losgDBd \
+                                -losgUtild \
+                                -losgGAd \
+                                -losgFXd \
+                                -losgEarthd \
+                                -lOpenThreadsd \
+                                -losgTextd \
+                                -losgManipulatord

320/main.cpp

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+
+
+int main() {}

readme.md

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+# OSG与OE学习项目
+
+由于种种原因需还有旧版的项目，故此添加210（即OE2.10）版本

startOSG.pro

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+TEMPLATE = subdirs
+
+SUBDIRS = 210 \
+    320
+
+DEFINES += readme.md