Abstract
In the era of big data, after the devastating earthquake, the amount of information required for earthquake emergency has increased geometrically. In order to display various geological, environmental and meteorological information more intuitively, network 3D visualization has become the Core technologies that were indispensable in terms of Geographic process dynamic simulation, visual analysis and synergistic decision. This paper introduced WebGL+HTML5 technology as the underlying development platform, ArcGIS API for JavaScript as the map access interface, and realized the WebGL-based seismic rapid report 3D visualization platform. The coordinate conversion algorithm has been used to realize the latitude and longitude coordinate offset algorithm, which solved the position error caused by the secondary encryption of Baidu map and Google map during positioning location. The 3D measurement function in ArcGIS API for JavaScript realized the display of the distance, area and attribute information in 3D environment, used ECharts and memory optimization technology to improve the browsing efficiency of the platform on the mobile terminal and optimize the display interface. The implementation of this system could provide technical and decision support for earthquake workers in earthquake emergency response.
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