Engineering excavation GIS (E 2 GIS) is a real-3D GIS serving for geosciences related to geo-engineering, civil engineering and mining engineering based on generalized tri-prism (GTP) model. As two instances of GTP mo...Engineering excavation GIS (E 2 GIS) is a real-3D GIS serving for geosciences related to geo-engineering, civil engineering and mining engineering based on generalized tri-prism (GTP) model. As two instances of GTP model, G\|GTP is used for the real\|3D modeling of subsurface geological bodies, and E\|GTP is used for the real\|3D modeling of subsurface engineering excavations.In the light of the discussions on the features and functions of E 2 GIS, the modeling principles of G\|GTP and E\|GTP are introduced. The two models couple together seamlessly to form an integral model for subsurface spatial objects including both geological bodies and excavations. An object\|oriented integral real\|3D data model and integral spatial topological relations are discussed.展开更多
变电站数字化和三维化是电力行业发展的重要内容,但现有的三维建模方式存在效率低、不真实、应用面窄等问题。本研究采用即时定位与地图构建(Simultaneous Localization And Mapping,SLAM)技术的移动扫描和倾斜摄影技术来获取变电站室...变电站数字化和三维化是电力行业发展的重要内容,但现有的三维建模方式存在效率低、不真实、应用面窄等问题。本研究采用即时定位与地图构建(Simultaneous Localization And Mapping,SLAM)技术的移动扫描和倾斜摄影技术来获取变电站室内外环境信息,实现快速、高精度的室内外一体化实景三维建模。在此基础上,采用WebGL技术构建变电站实景三维模型云平台,为多个场景应用提供服务。在教学培训上,在实景的展示和漫游基础上加入虚拟现实技术(Virtual Reality,VR),增强沉浸式体验,达到更好的效果;在设备管理中,通过感兴趣点(Point of Interest,POI)实现实景和属性的信息整合,提高设备管理水平。在变电站工程技改设计、建设验收中,通过地理连接实现二维平面地图、建筑信息模型(Building Information Modeling,BIM)等与实景三维的空间联动,真实反馈现场情况,减少现场勘测次数,节约人力物力。展开更多
文摘Engineering excavation GIS (E 2 GIS) is a real-3D GIS serving for geosciences related to geo-engineering, civil engineering and mining engineering based on generalized tri-prism (GTP) model. As two instances of GTP model, G\|GTP is used for the real\|3D modeling of subsurface geological bodies, and E\|GTP is used for the real\|3D modeling of subsurface engineering excavations.In the light of the discussions on the features and functions of E 2 GIS, the modeling principles of G\|GTP and E\|GTP are introduced. The two models couple together seamlessly to form an integral model for subsurface spatial objects including both geological bodies and excavations. An object\|oriented integral real\|3D data model and integral spatial topological relations are discussed.
文摘变电站数字化和三维化是电力行业发展的重要内容,但现有的三维建模方式存在效率低、不真实、应用面窄等问题。本研究采用即时定位与地图构建(Simultaneous Localization And Mapping,SLAM)技术的移动扫描和倾斜摄影技术来获取变电站室内外环境信息,实现快速、高精度的室内外一体化实景三维建模。在此基础上,采用WebGL技术构建变电站实景三维模型云平台,为多个场景应用提供服务。在教学培训上,在实景的展示和漫游基础上加入虚拟现实技术(Virtual Reality,VR),增强沉浸式体验,达到更好的效果;在设备管理中,通过感兴趣点(Point of Interest,POI)实现实景和属性的信息整合,提高设备管理水平。在变电站工程技改设计、建设验收中,通过地理连接实现二维平面地图、建筑信息模型(Building Information Modeling,BIM)等与实景三维的空间联动,真实反馈现场情况,减少现场勘测次数,节约人力物力。
