Method and device for constructing geological section three-dimensional model

A geological section and three-dimensional model technology, applied in the field of geological section three-dimensional model construction, can solve problems that are difficult to meet user scientific research and application needs

Pending Publication Date: 2021-09-14
NANJING NORMAL UNIVERSITY
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Problems solved by technology

[0003] However, with the continuous maturity of 3D GIS technology and the increasing expansion of 3D geoscience application systems, the traditional 2D geological profile cannot meet the scientific research and application needs of users in many aspects such as 3D visualization expression and 3D spatial analysis.

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  • Method and device for constructing geological section three-dimensional model
  • Method and device for constructing geological section three-dimensional model
  • Method and device for constructing geological section three-dimensional model

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Embodiment Construction

[0068] The technical scheme of the present invention is described in further detail below, what the experimental data of the present embodiment adopted is the geological profile of a certain research area ( figure 1 ) and section line and DEM data ( figure 2 ), the projected coordinate system adopted by the section line and DEM data is WGS_1984_UTM_Zone_50N. Further explanation will be given below by describing a specific embodiment in conjunction with the accompanying drawings.

[0069] like image 3 As shown, the present invention provides a method for building a three-dimensional model of a geological section, including:

[0070] (1) Form the profile set SP, the stratigraphic profile set S, the profile line set SL and the grid set GEoDEM according to the two-dimensional graph cut profile vector data, profile line vector data and DEM respectively.

[0071] This step specifically includes:

[0072] (1-1) Read the vector data of the two-dimensional geological section and ...

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Abstract

The invention discloses a method and a device for constructing a geological section three-dimensional model. The method comprises the following steps: (1) loading two-dimensional data to form a section set SP, a stratigraphic section set S, a section line set SL and a grid set GEoDEM; (2) reading any section spo from the SP, and constructing a surface line GL and a reference line RL; (3) reading any stratigraphic section of the section spo, and performing spatial geometric transformation on the stratigraphic section and the ground surface line GL to obtain a transformed stratigraphic section and a transformed ground surface line; (4) converting the transformed stratigraphic section into three dimensions to obtain a three-dimensional stratigraphic section; (5) based on the three-dimensional stratigraphic section, creating a parallel stratigraphic section according to a preset strip width w, and constructing a stratigraphic three-dimensional model by using the two stratigraphic sections; and (6) circularly executing the steps until all stratums of all sections are traversed to obtain three-dimensional entity models of all stratums, and inlaying to obtain a three-dimensional geological section model. The method for quickly constructing the three-dimensional section model based on the two-dimensional geological section map is realized.

Description

technical field [0001] The invention relates to the field of geology, in particular to a method and device for constructing a three-dimensional model of a geological section. Background technique [0002] A geological section is a map that reflects the strata and geological structures of a certain direction on the surface and at a certain depth underground, and is the basic data for studying strata, rock masses and structures. In addition, the combination of the geological section map and the plane geological map can also obtain the three-dimensional concept of the geological structure, reflecting the spatial relationship between the geological body and the geological structure and the geological evolution relationship. Based on the important value of geological profiles in research and application, geoscientists have produced and accumulated a large number of geological profiles for a long time. [0003] However, with the continuous maturity of 3D GIS technology and the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 李安波沈言根黄键初
Owner NANJING NORMAL UNIVERSITY
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