A GIS graphic entity parsing processing method based on a coal mine

Abstract

The present application relates to the technical field of figure analysis, and particularly relates to a GIS figure entity analysis processing method based on coal mines, which comprises the following steps: obtaining coal mine GIS original figure data, including a plurality of figure entities; preprocessing the original figure data, and extracting a boundary coordinate sequence of each figure entity; calculating a geometric characteristic parameter of each figure entity based on the boundary coordinate sequence, wherein the geometric characteristic parameter comprises an entity length and an entity direction angle; identifying the type of each figure entity according to the geometric characteristic parameter, wherein the type comprises a roadway, a working face or equipment; constructing a topological relation graph among the figure entities based on the type and the geometric characteristic parameter of the figure entities; and outputting the analyzed figure entity data, including the type of the figure entity and the topological relation graph. The present application sets an adjustable judgment threshold, and the system can be flexibly adapted to the figure characteristics of different coal mines, thereby improving the accuracy and automation degree of type identification.

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