Interactive 3D digital city construction and display method

Abstract

The invention discloses an interactive 3D digital city construction and display method. The method is realized via live-action 3D digital city construction and display and modeling 3D digital city construction and display. According to live-action 3D digital city construction and display, a panoramagram shot by a camera is used, and pasted to a 3D spherical surface, the moving track of people is simulated according to the spatial sequence, the panoramagram at a corresponding coordinate position in the spherical surface is replaced in real time and displayed for users. According to modeling 3D digital city construction and display, pre-compiled CAD standard segments are used to draft 2D CAD as-built drawings of present and newly built buildings, the corresponding segments are assigned with values, and 2D graphs and 3D models of the buildings are output, integrated into 2D and 3D spaces according to coordinates, and displayed for the users, The low-cost, high-efficiency, standardized and platform type 3D digital city construction and display method is provided.

Description

[0001] 1. Technical field [0002] The invention belongs to the technical field of spatial information, and relates to a construction method and a display method of a three-dimensional digital city. [0003] 2. Background technology [0004] The use of 3D urban building models and street view maps is increasingly becoming an important part of digital city construction. Compared with 2D maps, 3D models and street view maps are more intuitive, but the current 3D models can only browse the external features of buildings, and cannot Internal detail viewing and human-computer interaction cannot be managed uniformly in the database. [0005] The current street view map is mainly to switch the panoramas of different locations by clicking the arrows in the picture. It is a three-dimensional space simulated by a two-dimensional plane, without the sense of depth of a three-dimensional space, and there is no interactive function. [0006] 3. Contents of the invention [0007] The princi...

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Problems solved by technology

[0004] The use of 3D urban building models and street view maps is increasingly becoming an important part of digital city construction. Compared with 2D maps, 3D models and street view maps are more intuitive, but the current 3D models can only browse the external features of buildings, and cannot Internal detail viewing and human-computer interaction cannot be managed uniformly in the database

[0005] The current street view map is mainly to switch the panoramas of different locations by clicking the arrows in the picture. It is a three-dimensional space simulated by a two-dimensional plane. There is no sense of depth in a three-dimensional space, and there is no interactive function.

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