Road intersection three-dimensional model automatic generation method

A 3D model and automatic generation technology, applied in the field of 3D modeling, can solve the problems of low efficiency of 3D model generation methods, and achieve the effect of strong flexibility and timeliness

Active Publication Date: 2021-03-26
ZHEJIANG SUPCON INFORMATION TECH CO LTD
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Problems solved by technology

[0003] The present invention mainly solves the technical problem of low efficiency of the original three-dimensional model generation method of road intersections; provides an automatic generation method of three-dimensional model of road intersections, which can automatically generate three-dimensional models of road intersections in a parameterized manner, and the user It is only necessary to specify the basic parameters of the road intersection, and the corresponding 3D model can be automatically generated, which is convenient and fast, and greatly improves the modeling efficiency of the road intersection

Method used

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  • Road intersection three-dimensional model automatic generation method
  • Road intersection three-dimensional model automatic generation method
  • Road intersection three-dimensional model automatic generation method

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Embodiment

[0066] Embodiment: a kind of road intersection three-dimensional model automatic generation method of this embodiment, such as figure 1 shown, including the following steps:

[0067] S1. Obtain the basic parameters of road intersections. The basic parameters include the number of road surfaces at the intersection, the number of entering lanes, the number of exiting lanes, the rotation angle of the road surface, and the type of lane guidance;

[0068] S2. Disassemble the road intersection layer by layer according to the composition structure of the road intersection, and obtain the road surface model, sidewalk model, lane line model and lane guidance arrow model;

[0069] S3, calculating the vertex coordinates of all models in step S2;

[0070] S4. Use the vertex coordinates of the model as the triangle vertex coordinates to triangulate the model, construct a vertex index array according to the triangle vertex coordinates, and generate a triangle mesh model;

[0071] S5. Crea...

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Abstract

The invention discloses a road intersection three-dimensional model automatic generation method. The method comprises the following steps: acquiring basic parameters of the road intersection; disassembling the road intersection layer by layer according to the composition structure of the road intersection to obtain a pavement model, a sidewalk model, a lane line model and a lane guide arrow model;calculating vertex coordinates of the model; triangularizing the model by taking vertex coordinates of the model as vertex coordinates of a triangle, constructing a vertex index array according to the vertex coordinates of the triangle, and generating a triangular mesh model; creating different materials for the models respectively, and endowing the different materials to the corresponding triangular mesh models; and combining all the triangular mesh models to establish a road intersection model. According to the invention, the three-dimensional model of the road intersection can be automatically generated in a parameterized mode, a user only needs to specify basic parameters of the road intersection to automatically generate the corresponding three-dimensional model, convenience and rapidness are achieved, and the modeling efficiency of the road intersection is greatly improved.

Description

technical field [0001] The invention relates to the technical field of three-dimensional modeling, in particular to a method for automatically generating a three-dimensional model of a road intersection. Background technique [0002] Existing 3D roads generally adopt a manual modeling method, by using some 3D modeling software such as maya and 3dmax to manually build a triangular mesh model of the road. The manual modeling method can make the model very delicate and real, but its biggest disadvantage is that the manual modeling workload is heavy and the efficiency is extremely low, which is not conducive to improving productivity and production efficiency, and seriously affects the application of 3D road models in various fields . Contents of the invention [0003] The present invention mainly solves the technical problem of low efficiency of the original three-dimensional model generation method of road intersections; provides an automatic generation method of three-dime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
CPCG06T17/00Y02T10/40
Inventor 龚佑海戴强奚燕李亚仙檀莹莹钱高冉
Owner ZHEJIANG SUPCON INFORMATION TECH CO LTD
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