A node-based geographic route finding map identification method

Abstract

The invention discloses a node-based geographic route finding map identification method, comprising a establishing method and a displaying method. The establishing method comprises: inputting all river vector data Rb corresponding to the identification level Layers (i) and converting the input data Rb into a river vector path Ri; Inputting a set of managers Mi of the identification hierarchy Layers (i), and inputting a corresponding set of river management points Pij for each manager Mij of the set of managers Mi; Finding a corresponding center point Cij for the river management point set Pij;Establishing a management point set Tij of a manager, and establishing a river management data set Ei identifying a hierarchy of Layers (i); Displaying a river management data set Ei generated by themethod according to the establishment method; Generating, color and display the managed reach of the manager. The invention uses the multi-level node tree and the shortest path to generate the riversection, thereby solving the map display problem of the river section management from the generation and expression mode, and facilitating the administrator to better manage the river.

Description

technical field [0001] The invention belongs to the technical field of electronic maps, and in particular relates to a node-based geographical routing map identification method. Background technique [0002] Rivers in traditional electronic maps usually use vector (Shp / KM, etc.) or bitmap slices to represent and display rivers. Among them, vector polygons and vector line segments are the main representation methods, and their advantages are that they support stepless zooming of maps and are easy to edit. But the vector polygon / line segment is a whole, and it needs to be loaded at one time and displayed as a whole. It is difficult to represent the different reaches of a river and the refinement of the jurisdiction area. [0003] Defects of the existing electronic map: the existing electronic map directly loads and displays the entire river at one time, without considering finer-grained issues such as river sections and river section management, and cannot express and color ...

AI Technical Summary

Problems solved by technology

[0003] Defects of the existing electronic map: the existing electronic map directly loads and displays the entire river at one time, without considering finer-grained issues such as river sections and river section management, and cannot express and color multi-level rivers, river sections and management data, and this is very important in vertical application fields, such as: river chief system, road section management system

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