Three-dimensional model monomer implementation method

Abstract

The embodiment of the invention provides a three-dimensional model monomer implementation method. The method comprises the following steps that an octree structure is used for dividing an inclined model; vector data extraction is carried out on the divided eight molecular nodes through a ray method; and inputting the extracted vector data into a database, and layering and monomerizing the inclined model building according to the information in the database. According to the embodiment of the invention, the tilt model triangular grids are combined to reduce the calling times of the rendering pipeline, so that the problem of low rendering efficiency of the tilt model when the data size of the tilt model is relatively large is solved; the method can solve the time-consuming, labor-consuming and precision problems existing in current tilt model vector data extraction, and realizes tilt model layering monomerization.

Description

technical field [0001] The various embodiments of the present application belong to the field of big data technology, and in particular relate to a method for realizing a three-dimensional model singulation. Background technique [0002] The simplification of oblique models is a new requirement that emerges with the development of oblique photography technology to solve the problem of the application of oblique photography data in GIS. At present, the methods of individualization of tilted models are mainly divided into two categories: physical individualization methods and vector individualization methods. Physical singulation methods include model reconstruction singulation and cutting singulation, and vector singulation methods include vector ID singulation and vector dynamic singulation. [0003] Vector dynamic singulation is to superimpose the vector surface corresponding to the singulated object on the inclined model, which is similar to a bounding box, which complete...

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Problems solved by technology

[0006] The purpose of the embodiments of the present application is to provide a method, system, device, and computer-readable medium for realizing a three-dimensional model singulation, and the method is used to solve the problems of long data loading scheduling time and low smoothness of tilted model browsing; The oblique model triangle grid is merged to reduce the number of calls of the rendering pipeline, which is used to solve the problem of low rendering efficiency of the oblique model when the data volume of the oblique model is large; the method of vector data extraction of the oblique model based on the ray method is used to solve the current oblique model The time-consuming, labor-intensive and precision problems of vector data extraction; according to the extracted vector data, the model bounding box is constructed using primitives in Cesium and superimposed on the tilted model, realizing the layering and singulation of the tilted model, thereby solving the problems in the background technology question

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