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Minimum distance sorting method assisted by digital mapping brief spelling coding method and internal sorting method

A digital surveying and shortest-distance technology, applied in the field of surveying and mapping science, can solve the problems of slow coding speed, difficult operation of the method of coding and connection information, and difficult memory of coding, so as to achieve the effect of less workload and saving field time

Inactive Publication Date: 2012-05-23
王尚奇 +1
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Problems solved by technology

[0003] A. Purpose of the invention: the shortest distance sorting method supplemented by the Jianpin coding method and the internal sorting method is to solve the difficulty in remembering the codes in the various coding schemes in use above, and the slow input coding speed in the field, which cannot fully satisfy the crossover of multiple instruments. It is carefully developed due to the needs of the operation, there is no clear coding connection information, or there is a method of clearly coding the connection information but it is difficult to operate.

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  • Minimum distance sorting method assisted by digital mapping brief spelling coding method and internal sorting method
  • Minimum distance sorting method assisted by digital mapping brief spelling coding method and internal sorting method
  • Minimum distance sorting method assisted by digital mapping brief spelling coding method and internal sorting method

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Embodiment Construction

[0035] A. The specific realization process of field measurement data coding: When measuring the ground object data in the field, in the case of determining the realization method of the connection relationship between the ground object data points according to the shortest distance sorting method with the internal sorting method as the auxiliary method, follow Table 1 (Simplified spelling and coding structure table of various feature elements) Encode various features respectively. Table 2 lists some specific feature elements and their abbreviated spelling codes to facilitate readers' understanding.

[0036] Table 2 Part of the overall coding table representing feature elements

[0037]

[0038] In the process of encoding linear data, the internal sorting method is used to encode the complicated segment, and the distance sorting method can be used again when it is not complicated. The two kinds of encoding can be carried out interactively. In use, it is necessary to ensure that the...

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Abstract

The invention discloses a minimum distance sorting method assisted by a digital mapping brief spelling coding method and an internal sorting method, which is directly applied in the technical field of the total field digital mapping. The brief spelling coding method is composed of a type code+ (a series number)+ (a descriptor)+ (a feature code)+ (-an attribute code)(contents in the brackets are selectable), wherein the measured data is sorted by the minimum distance sorting method assisted by the brief spelling coding method. The minimum distance sorting method is as follows: sequentially calculating distances between the base point and the rest points from the starting point of the surface feature data point and taking the starting point of the surface feature data point as the base point, and selecting the data point with the shortest distance as the connection point with the base point, and taking the selected point with the shortest distance as the base point again, and sequentially calculating the distances between the base point and the rest points, and selecting the data point with the shortest distance as the connection point with the base point, and repeating the steps until no rest points are left; finally, sorting the data points with the shortest distances from each selection based on the precedence such that the sequence fully ensures the connection relationship between each surface feature data point and the other points. The minimum distance sorting method can achieve full automation on field mapping fast coding and interior data processing and map making.

Description

Technical field: [0001] The patented technical scheme of the present invention belongs to the category of surveying and mapping science and is directly applied to the technical field of digital mapping in the whole field. The shortest distance sorting method using the simplified spelling coding method in the patent and the internal sorting method as an auxiliary method can realize field mapping Fast coding and complete automation of internal data processing and drawing. Background technique: [0002] In the field of full-field digital mapping, the complexity of field information determines the diversity of data coding schemes in the current full-field digital mapping software used in surveying and mapping circles. Currently, the more widely used data coding schemes are: 1. Block structure coding scheme. The mainstream software that uses the block structure coding scheme is the EPSW electronic tablet system of Tsinghua Sunway. Although the block structure coding scheme is simple t...

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Application Information

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IPC IPC(8): G06F17/30G01C7/00G09B29/00
Inventor 不公告发明人
Owner 王尚奇
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