Construction method for fold distribution map for reflecting topographic features

Abstract

The invention discloses a construction method for a fold distribution map for reflecting topographic features, and the method comprises the steps: constructing a spatial triangulation network according to the corresponding relation between all points in a three-dimensional vector topographic map and all grid points in a plane; calculating the area of each triangle in the spatial triangulation network, and determining all target triangles; calculating the elevation angle of each target triangle, and carrying out the grading of all target triangles according to the calculated elevation angles ofall target triangles; carrying out the fitting of all target triangles at each level to form a plane, and calculating the elevation angle of each plane; setting filling colors of all planes accordingto the calculated elevation angles of all planes, and enabling the filling color of each plane which is set well to be placed in all target triangles in the corresponding plane; calculating the meanvalue of the folds of three points of each target triangle, and pasting the mean value of the folds of three points of each target triangle into the corresponding target triangles in 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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