Grid method for drawing city map and application thereof

Abstract

The invention relates to a grid method for drawing a city map and an application thereof, which introduces a method for drawing the city map by the grid method. The method is characterized by increasing the information amount and functions of a grid map by tens of times through the function match of a series of assisted diagrams and also supplying a new space for the digital and intelligent management of a city. The map is drawn on the basis of a longitude and a latitude of the earth, but because the city area is even smaller than the surface area of the earth and an error generated by simulating and replacing the longitude and the latitude of the earth by a grid line is infinitesimal, the method is feasible. The method sets the area that 1km multiplies 1km is equal to 1km to be a grid basic unit, 100 basic units of 10*10 form a grid cell, the city map is drawn on the grid cell, a street, a community and a building of the city map are all relative with the basic units (grids), and each basic unit has regular and non-repeating name signs, thereby bringing convenience for searching and positioning each place name. In order to improve positioning accuracy, smaller grids, such as a subunit, an ultra-fine unit, and the like can be used as a calibration, and the accuracy can be improved within 10m, 100m, and the like. When the grid cell area of a big city is not enough, the grid cell expansion of grade 1, grade 2, and the like can be used, and orient expansion can be also adopted according to a city shape.

Description

Technical field: [0001] Belongs to the subject of geography, professional map drawing. technical background: [0002] There are many types of map drawing, such as world map drawing, country map drawing, provincial map drawing, city map drawing, ---. Longitude and latitude lines are generally marked for large-scale map drawing, and most of the small-area city maps are not marked, but they all abide by the rule of going up north and down south. The area is too large, there are many streets and place names, and the bus line network is dense, so that the map is so dense that it is difficult to find out the direction of the bus route with a magnifying glass. It is also difficult to find blocks and place names, which brings inconvenience to citizens. The outsiders are even more miserable---! The above photo is still a case where a large amount of information has been deleted. There are many large companies and sub-important public facilities that should be on the map, but due to...

AI Technical Summary

Problems solved by technology

Longitude and latitude lines are generally marked for large-scale map drawing, and most of the small-area city maps are not marked, but they all abide by the rule of going up north and down south. The area is too large, there are many streets and place names, and the bus line network is dense, so that the map is so dense that it is difficult to find out the direction of the bus route with a magnifying glass. It is also difficult to find blocks and place names, which brings inconvenience to citizens. The outsiders are even more miserable---! The above photo is still a case where a large amount of information has been deleted. There are many large companies and sub-important public facilities that should be on the map, but due to the limited map surface, the wish cannot be realized. As for a large number of commercial addresses, there is no chance for the city map. ---

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