OpenSceneGraph集成到应用hap
本库是在RK3568开发板上基于OpenHarmony3.2 Release版本的镜像验证的，如果是从未使用过RK3568，可以先查看润和RK3568开发板标准系统快速上手。
开发环境
编译三方库
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下载本仓库
git clone https://gitee.com/openharmony-sig/tpc_c_cplusplus.git --depth=1 -
三方库目录结构
tpc_c_cplusplus/thirdparty/OpenSceneGraph #三方库OpenSceneGraph的目录结构如下 ├── docs #三方库相关文档的文件夹 ├── HPKBUILD #构建脚本 ├── HPKCHECK #测试脚本 ├── SHA512SUM #三方库校验文件 ├── README.OpenSource #说明三方库源码的下载地址，版本，license等信息 ├── README_zh.md #三方库简介 ├── osg_test.patch #用于OpenSceneGraph库编译的补丁 -
在lycium目录下编译三方库
编译环境的搭建参考准备三方库构建环境
cd lycium ./build.sh OpenSceneGraph -
三方库头文件及生成的库
在lycium目录下会生成usr目录，该目录下存在已编译完成的32位和64位三方库
OpenSceneGraph/arm64-v8a OpenSceneGraph/armeabi-v7a
应用中使用三方库
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在IDE的cpp目录下新增thirdparty目录，将编译生成的头文件和库文件拷贝到该目录下，如下图所示：
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在最外层（cpp目录下）CMakeLists.txt中添加如下语句
#将三方库的头文件加入工程中 target_include_directories(OpenSceneGraph PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/include) #将三方库加入工程中 target_link_libraries(OpenSceneGraph PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libOpenThreads.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosg.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgAnimation.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgDB.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgFX.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgGA.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgManipulator.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgParticle.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgPresentation.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgShadow.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgSim.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgTerrain.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgText.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgUI.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgUtil.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgViewer.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgVolume.so.3.6.5 ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/OpenSceneGraph/${OHOS_ARCH}/lib/libosgWidget.so.3.6.5 )
测试三方库
进入到构建目录运行测试用例（注意arm64-v8a为构建64位的目录，armeabi-v7a为构建32位的目录），执行结果如图所示
# 进入对应架构的构建目录
cd OpenSceneGraph-OpenSceneGraph-3.6.5/armeabi-v7a-build/bin
# 设置动态链接库路径
export LD_LIBRARY_PATH=../lib:$LD_LIBRARY_PATH
# 运行所有测试模块
./osgunittests matrix && \
./osgunittests sizeof && \
./osgunittests quat && \
./osgunittests performance && \
./osgunittests "read-threads 4" && \
./osgunittests filenames && \
./osgunittests thread && \
./osgunittests polytope && \
./osgunittests qt && \
./osgunittests "quat_scaled 1.0 1.0 1.0"
## 参考资料
- [润和RK3568开发板标准系统快速上手](https://gitee.com/openharmony-sig/knowledge_demo_temp/tree/master/docs/rk3568_helloworld)
- [OpenHarmony三方库地址](https://gitee.com/openharmony-tpc)
- [OpenHarmony知识体系](https://gitee.com/openharmony-sig/knowledge)
- [OpenSceneGraph官方文档](https://openscenegraph.org/documentation/)