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

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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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

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