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Generation method and device of electronic map, and display method and device of the electronic map

An electronic map and map technology, applied in 2D image generation, image data processing, electrical digital data processing, etc., can solve the problems of reduced efficiency of route planning query and generation of a large number of road sections, so as to improve the efficiency of query and simplify the hierarchy structure effect

Active Publication Date: 2016-07-27
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a method and device for generating and displaying an electronic map, which is used to solve the problem that the existing road storage method will generate a large number of road sections, which will lead to a decrease in query efficiency in route planning

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  • Generation method and device of electronic map, and display method and device of the electronic map

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Embodiment Construction

[0049] Embodiments of the present invention provide a method and device for generating and displaying an electronic map. Since it is organized according to the tile where the starting point of the road is located, that is, the road information in the tile of the tile where the starting point of the road is located The data information of the road is stored in the table. Therefore, when performing operations on the topological structure of the road, the information in the road information table in the tile of the tile can be directly used. Compared with the existing road storage method, a large number of In terms of road sections, which lead to a decrease in query efficiency in path planning, the query efficiency is improved, and, since the cross-tile road index is not required to represent the connection relationship between different road sections in the same road, the organization of the road is simplified Hierarchy of relationships.

[0050] The specific implementation mann...

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Abstract

The embodiment of the invention provides a generation method and device of an electronic map, and a display method and device of the electronic map. The methods and the devices are used for solving the problems that a great deal of road segments are generated through adoption of the existing road storage method, and the search efficiency when paths are planned is reduced. The method comprises following steps of for one road, determining the start point of the road according to the shape point information of the road; storing the data information of the road in the intra-tile road information table of a tile at which the start point of the road is located, wherein the data information of the road at least comprises the shape point information of the road. The embodiment of the invention also provides a generation device of the electronic map, and a display method and device of the electronic map.

Description

technical field [0001] The invention relates to the technical field of electronic map data, in particular to a method and device for generating and displaying an electronic map. Background technique [0002] Satellite positioning technology and mobile Internet technology have been widely used, which has also driven the development of navigation and location service related industries. At present, the navigation software is developing in the direction of intelligence, convenience, and personalization, and the most important element in the information of the navigation map is the road, so a key point in the navigation application is the organization of the road information. [0003] Since the main requirement of navigation applications for roads is fast and accurate retrieval, the current method of organizing road information is mainly to establish spatial indexes. The so-called spatial index refers to a data structure arranged in a certain order according to the position and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F40/00
CPCG01C21/36G06F17/00G06F40/00G06T11/00
Inventor 贾双成陈岳叶旻
Owner ALIBABA (CHINA) CO LTD