Tunnel advanced geological forecast abnormal body three-dimensional marking and drawing method and system

The invention provides a tunnel advanced geological forecast abnormal body three-dimensional marking and drawing method and system. The method comprises the steps of conducting the two-dimensional marking on forecast body slices; connecting the marked discrete points to draw a two-dimensional graph...

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Bibliographic Details
Main Authors NIE LICHAO, MA ZHAO, WANG KAI, ZHOU WEI, CHEN ANTAI, ZUO ZHIWU, SUN FAHE
Format Patent
LanguageChinese
English
Published 09.02.2021
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The invention provides a tunnel advanced geological forecast abnormal body three-dimensional marking and drawing method and system. The method comprises the steps of conducting the two-dimensional marking on forecast body slices; connecting the marked discrete points to draw a two-dimensional graph consisting of triangular patches according to the marks on the two-dimensional slices; searching boundary points of the graph according to the drawn two-dimensional graph; automatically judging the type of the two-dimensional graph according to the side length of the triangle corresponding to the two-dimensional boundary point, if the two-dimensional graph is concave, solving the concave boundary point, if the two-dimensional boundary point is convex, directly solving the boundary point; performing polar coordinate sorting on the searched boundary points, including all boundary points, and uniformly collecting a plurality of points on an included curve to serve as points connected with different sections; sequentia
Bibliography:Application Number: CN202011102204