Construction of basic geospatial information framework in Huludao City

Based on the existing DWG data of Huludao City, the basic geospatial information framework of huludao city was established by using AutoCAD, FME and ArcGIS. Among them, after loading CASS, AutoCAD has a powerful graphics processing function, which makes it easy for the original data to meet the storage standards; As a data conversion software, FME completed the lossless conversion between DWG and MDB data and solved the biggest problem in this experiment. ArcGIS has powerful data processing, modeling and analysis functions. DEM is generated on this platform, and a series of operations such as lighting Angle, perspective setting, rendering and 3D analysis are carried out, which increases the readability and practicability of original DEM. In this process, the professional advantages of the three software are given full play to complete the establishment of DEM in a simple and effective way, which lays a foundation for the construction of “smart city” and even “ecological city”.