Node-based geographic routing map identification method

Abstract

The invention discloses a node-based geographic path-finding map identification method, including an establishment method and a display method, and the establishment method includes inputting all river vector data R of the corresponding identification level Layers(i) b , converting it into a river vector path R i ; Input the set M of managers identifying Layers(i) i , for the manager set M i Each manager M of ij , input the corresponding river management point set P ij ; For the river management point set P ij Find the corresponding center point C ij ; Create a set of manager management points T ij , to establish the river management data set E of the identification layer Layers(i) i ;Display the river management data set E generated by the establishment method i ;Generate the management section of the manager and perform coloring and display. The present invention uses a multi-level node tree and a method for generating river sections by the shortest path, thereby solving the problem of map display for river section management in terms of generation and presentation methods, and facilitating managers to better manage rivers.

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

Images