Automatic generation method of stratum boundary map layer

A stratum and boundary technology, applied in the field of geographic information technology and application, can solve the problems of low identification efficiency, easy introduction of human errors, and large workload.

Inactive Publication Date: 2016-06-22
NANJING NORMAL UNIVERSITY
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Problems solved by technology

[0005] For this reason, the present invention mainly aims at problems such as heavy workload, low recognition efficiency, and easy introduction of human errors when artificially making stratigraphic boundary layers, and pr

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  • Automatic generation method of stratum boundary map layer
  • Automatic generation method of stratum boundary map layer
  • Automatic generation method of stratum boundary map layer

Examples

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Embodiment Construction

[0060] The effects of the present invention will be further described below in conjunction with the accompanying drawings and by describing an example of automatic generation of stratum boundary layers. In this example, the 1:50000 Lushan sedimentary and volcanic stratigraphic unit layer, metamorphic stratigraphic unit layer, fault layer and occurrence layer are selected as experimental data, such as figure 2 shown.

[0061] The specific implementation process is as follows:

[0062] (1) Build SARG

[0063] Step 11: Load the Lushan sedimentary and volcanic stratigraphic unit layers, metamorphic stratigraphic unit layer data, such as figure 2 shown. And read the corresponding stratigraphic elements into the set S={s i |i=1, 2, ..., 419}, this example contains a total of 419 stratum layer elements;

[0064] Step 12: Read out each stratum element s i The vertex set v i , and for each stratigraphic element s i The vertex set is preprocessed to stratum layer features s 1...

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Abstract

The invention discloses an automatic generation method of a stratum boundary map layer. The method comprises the following steps of (1) based on deposition, a volcanic stratum boundary map layer and a metamorphic stratum unit map layer, searching all the adjacent stratums in the map layers and constructing a stratum adjacency relation map; (2) based on the stratum adjacency relation map, extracting a common boundary of the adjacent stratums and generating a stratum boundary; (3) based on a faultage map layer, identifying a faultage contact relation; (4) based on a occurrence map layer, identifying a basic contact relation and completing automatic generation of the stratum boundary map layer. Compared to a manually-made method, by using the method in the invention, the generated stratum boundary map layer is high-efficient and fast; through reducing a manual participation degree, introducing of a manual error is avoided as far as possible; and a need of geologic map space database stratum boundary map layer making is satisfied.

Description

technical field [0001] The invention belongs to the field of geographic information technology and application, and specifically relates to a method for automatically generating stratigraphic boundary layers based on sedimentary and volcanic stratigraphic unit layers, metamorphic stratum unit layers, occurrence layers and fault layers. Background technique [0002] In the construction process of geological map spatial database, the preparation of stratigraphic boundary layer is an essential work. In the industry standard "Digital Geological Map Layer and Attribute File Format [DZ / T0197-1997]" formulated by the China Geological Survey Bureau, the attribute data of the stratigraphic boundary layer is clearly stipulated. [0003] At present, the production of stratigraphic boundary layers is mainly realized by manual production. The production method mainly includes two aspects of work: one is to scan and vectorize the existing geological map to obtain the stratum boundary, an...

Claims

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Application Information

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IPC IPC(8): G06T11/00
CPCG06T11/001
Inventor 姚蒙蒙李安波陈楹李梦圆吴春莹
Owner NANJING NORMAL UNIVERSITY
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