Method for cutting block model of three-dimensional ore body with attribute to generate two-dimensional profile map

A profile and model technology, applied in 2D image generation, image data processing, graphic image conversion, etc., can solve the problems of good image quality, low precision, time and space consumption, etc., achieve flexible and convenient operation, and improve production Accuracy and efficiency, the effect of improving the data processing mechanism

Active Publication Date: 2016-02-03
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

The intersection-based cutting algorithm needs to test more voxels and save the generated polygon data, which consumes a lot of time and space, but the generated image quality is good
Therefore, this method is suitable for the situation where the amount of volu...

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  • Method for cutting block model of three-dimensional ore body with attribute to generate two-dimensional profile map
  • Method for cutting block model of three-dimensional ore body with attribute to generate two-dimensional profile map
  • Method for cutting block model of three-dimensional ore body with attribute to generate two-dimensional profile map

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with drawings and embodiments.

[0024] The present invention provides a method for generating a two-dimensional profile by cutting a block model of a three-dimensional ore body with attributes, referring to figure 1 , including the following steps:

[0025] (1) Divide the 3D ore body model into a group of unit blocks filled with the 3D ore body model: based on the minimum bounding box model of the 3D ore body model, use cube-shaped unit blocks to fill the bounding box, and use the 3D ore body model as the Constraint conditions check the intersection between the unit block in the bounding box and the 3D ore body model, and select the unit block by determining whether the unit block is inside or outside the 3D ore body model: the unit block located inside the 3D ore body model remains ; The unit block located outside is discarded; the unit block intersecting with the surface of the 3D ore body model is...

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Abstract

The invention relates to a method for cutting a block model of a three-dimensional ore body with an attribute to generate a two-dimensional profile map. The method comprises steps of: establishing a bounding box model according to the azimuth angle of the ore body and the maximum coordinate value and the minimum coordinate value of the ore body in a three-dimensional space; on the basis of the bounding box model, filling the ore body by using a cell block and a secondary graded cell block on the premise of a block coefficient method while using the block model as a constraint condition; performing Kriging interpolation on the block model to compute reserves; selecting the cutting direction in order to cut the block model subjected to the Kriging interpolation; and automatically drawing and outputting the profile map in a two-dimensional program. The method utilizes multiple new ways and new techniques including cell block and secondary graded cell block mixed filling bounding box technology, Kriging interpolation technology, block cutting technology, and fast two-dimensional reserves profile map forming technology so as to rapidly and highly efficiently cut the block, generate a two-dimensional reserves profile map, and achieve linked switching of two-dimensional and three-dimensional data.

Description

technical field [0001] The invention relates to a method for generating a two-dimensional section diagram by cutting a block model of a three-dimensional ore body with attributes, and belongs to the field of geological structure display. Background technique [0002] Cutting analysis is a perspective analysis method to understand the internal structure of the 3D model through the cutting surface. The cutting analysis can be regarded as that the operator cuts the space object with a knife and observes the internal structure of the 3D object presented on the cutting surface through a specific expression. Object selection and feature recognition are carried out on the parts of interest according to the needs. The two-dimensional profile of DEM is the original application of this method. Plane cutting technology can link 2D and 3D together, the information displayed on the 2D section can be associated with the 3D model, and the attributes in the 3D model can also be displayed on...

Claims

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Application Information

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IPC IPC(8): G06T11/00G06T3/00
Inventor 张夏林吴冲龙李章林陈俊良李俊杰
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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