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Construction and display control method for floor and house division model of three-dimensional urban building

A display control method and technology of three-dimensional models, applied in the field of spatial information, can solve the problems of lack of detailed expression of internal elements and user interaction in three-dimensional building models, and achieve a more realistic and intuitive display effect, information expression and concentration, and in-depth information expression. Effect

Inactive Publication Date: 2012-03-28
BEIHANG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a construction and display control method of a three-dimensional urban building layered household model, which is used to solve the problem that the existing three-dimensional building model lacks the detailed expression of internal elements and user interaction

Method used

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  • Construction and display control method for floor and house division model of three-dimensional urban building
  • Construction and display control method for floor and house division model of three-dimensional urban building
  • Construction and display control method for floor and house division model of three-dimensional urban building

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Embodiment Construction

[0037] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0038] The invention relates to a construction and display control method of a three-dimensional urban building layered household model. Based on the existing multi-scale and multi-precision two-dimensional plane CAD surveying drawing, the present invention constructs a three-dimensional urban building layered household model, and performs display control on the model.

[0039] The construction and display control method flow of the three-dimensional urban building layered household model of the present invention is as follows figure 1 As shown, it specifically includes the following steps:

[0040] Step 1: Preparation of 2D CAD mapping and related data;

[0041] The data that needs to be prepared include: two-dimensional CAD surveying drawings such as real estate building plans, layered drawings, and household drawings. Such as Figure 2a , 2b ,...

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Abstract

The invention discloses a construction and a display control method for a floor and house division model of a three-dimensional urban building. By utilizing an existing two-dimensional plane CAD surveying drawing of an urban building and relevant data preparation, and by adopting 3D technology to establish a three-dimensional architectural element model, the invention achieves the display controlof the floor and house division model of the three-dimensional urban building and the user interaction in three-dimensional scene. The invention realizes multi-level display and operation based on structure details of the building, re-presents the internal and external structures of the real building in a method in accordance with the visual habits and mental habits of the observers, and achievesvisual interaction with users. Therefore, the method can be widely applied to architectural design, real estate exhibition, indoor navigation and other fields.

Description

technical field [0001] The invention belongs to the technical field of space information, and relates to a construction and display control method of a three-dimensional urban building layered household model. Background technique [0002] The use of 3D urban architectural models is increasingly becoming an important content in the construction of digital cities and digital earths. Compared with the application of two-dimensional spatial data, the three-dimensional model pays more attention to the detailed reproduction of the real world in a way that conforms to the observer's visual and psychological habits. The 3D modeling technology is mainly aimed at the 3D surface modeling of urban buildings. Users can only browse the external features of the building, which cannot meet the user's viewing and interaction needs for the internal details of the building. [0003] How to rationally abstract the internal and external structure of buildings from the perspective of multi-deta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T15/00
Inventor 翁敬农杨雪吕经纬
Owner BEIHANG UNIV
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