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Spatial visualization method of pipe network section based on ArcEngine and DWGdirect.net

Pipe network is a complex spatial distribution system. In order to define the internal structure of the pipe more, this article aims to analyze the section spatial topological structure of the pipe network from a 2-dimensional GIS pipe network map by using a generation algorithm of transverse section drawings and vertical section drawings. Based on C# and ArcEngine, this algorithm visualizes transverse section drawings and vertical section drawings of the pipe network by using of the 3 - dimensional coordinate information provided by GIS spatial vector data. It can also calculate and output related attribute data of the section drawings to achieve the section spatial topological analysis function. The function of vertical section spatial topological analysis is assisted by a connected analysis algorithm. The method of writing and saving the section drawings into a DWG format file is realized by DWGdirect.net technology according to the section drawing national standard, the generated section drawings can be edited in AutoCAD, so as to realize the interoperation of AutoCAD and GIS.