Map building method and map system

A technology for establishing methods and maps, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems affecting user experience, slowing down database access speed, etc., to reduce storage space, increase usage rate, and speed up positioning speed effect
CN102103600BInactive Publication Date: 2013-04-03CHINA MOBILE COMM GRP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA MOBILE COMM GRP CO LTD
Publication Date
2013-04-03
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a map building method and a map system. The method comprises the following steps of: dividing map elements into multiple map layers according to the attributes of the map elements; setting different visual fields, and determining the map layers seen in the different visual fields; sequentially adopting coordinate units from big to small according to the high-to-low visual field heights; when an element is added in the map, determining the map layer of the element, determining the visual field of the map layer, converting the absolute coordinate of the element into the relative coordinate on the map in the visual field according to the original point and the coordinate unit of the map in the visual field, and storing the corresponding relationship among the visual field identification, the absolute coordinate of the element and the relative coordinate of the element; and adding the element to the map in the visual field according to the relative coordinate of the element. The method reduces the storage space occupied by the map data, and improves the utilization rate of the map to a great extent.
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Description

technical field

[0001] The invention relates to the technical field of digital maps, in particular to a map establishment method and a map system. Background technique

[0002] Urban management components refer to various facilities in urban management public areas, including municipal public facilities, road traffic facilities, city appearance and sanitation facilities, landscaping, and other categories such as: sewer covers, referred to as components. Urban management incidents refer to the general term for events and behaviors that affect or destroy the urban environment and environmental order caused by human or natural factors, and need to be dealt with by the urban management department and restored to normal. The new model of digital city management refers to the combination of the 10,000-meter unit grid management method and the urban component and event management method, and the application and integration of multiple digital city technologies to achieve a digital ...

Claims

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