Urban pipe line detection data fast mapping method and system based on GIS platform

Abstract

The invention discloses an urban pipe line detection data fast mapping method and system based on a GIS platform. The method includes the steps that pipe line starting point and ending point coordinate fields are added, and value assignment is carried out on pipe line starting point and ending point coordinates; starting point and ending point coordinate information of pipe lines is directly read during pipe line mapping by carrying out value assignment on all endpoint spatial positions needed by the pipe lines so that the repeated operation of reading the pipe point coordinate information through the relation between the pipe lines and pipe points during mapping can be avoided; pipe line list mapping is carried out, wherein a pipe line list is read and traversed, the pipe lines are drawn, and pipe line attributes are read and assigned to pipe line elements; pipe point list mapping is carried out, wherein a pipe point list is read and traversed, pipe points are drawn according to point coordinate information, and pipe point attributes are read and assigned to pipe point elements; mapping is finished. According to the method, more work is completed before pipe line mapping on the basis that the pipe line mapping principle is understood, so that frequent database reading operation is simplified in the mapping process, especially for mapping with a large data volume.

Description

technical field [0001] The invention relates to a method and system for quickly forming maps of urban pipeline detection data based on a GIS platform. Background technique [0002] When pipeline mapping is performed from detection data (assuming that the data has been checked and corrected), the traditional mapping methods basically include the following types, and the overall operating efficiency is basically the same. The overall analysis is as follows: [0003] Traditional drawing method 1: such as figure 1 As shown, first map the pipe points: by traversing the pipe point data table, read the pipe point coordinate information to draw the pipe points, and at the same time assign the pipe point attribute information; The statement temporarily builds a table, and obtains the coordinates of the start and end points of the pipeline, and then draws the pipeline according to the coordinate information of the start point and end point of the pipeline (that is, the two end point...

AI Technical Summary

Problems solved by technology

[0012] Based on the above analysis, it is found that the bottleneck of traditional pipeline mapping is more time wasted on database association query and database reading operations

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