A Construction Method of Coverage Times Distribution Map for Reflecting Terrain Features

Abstract

The invention discloses a method for constructing a coverage number distribution map for reflecting terrain features, comprising: constructing a spatial triangulation network according to the corresponding relationship between each point in the three-dimensional vector topographic map and each grid point in the horizontal plane; Calculate the area of ​​each triangle in the space triangulation network, and determine all target triangles; calculate the elevation angle value of each target triangle, and divide all target triangles into grades according to the calculated elevation angle value of each target triangle; Fit all target triangles into a plane, and calculate the elevation angle value of each plane; set the fill color of each plane according to the calculated elevation angle value of each plane, and fill the set fill color of each plane to the corresponding plane In all target triangles; calculate the average value of the three vertex coverage times of each target triangle, and paste the calculated average value of the three vertex coverage times of each target triangle into each target triangle corresponding to each plane.

Description

technical field [0001] The invention relates to the technical field of data quality monitoring and evaluation in the field of exploration, in particular to a method for constructing a coverage frequency distribution map for reflecting terrain features. Background technique [0002] With the continuous development of exploration technology, how to select the appropriate coverage times in the exploration process becomes more and more important. The number of coverage refers to the number of traces in each common-depth point gather, which can provide the common-depth point gather required for multiple stacking. Interference waves can be effectively suppressed and the signal-to-noise ratio can be improved through multiple stacking, so as to achieve high-precision exploration. Therefore, accurately displaying the distribution of coverage times in the exploration area can provide a good analysis basis for the multiple stacking effects, and then achieve good exploration results. ...

AI Technical Summary

Problems solved by technology

However, this method cannot reflect the terrain characteristics, let alone accurately show the distribution of coverage times on the undulating terrain.

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