Method for constructing three-dimensional data model based on real estate registration result

Abstract

The invention discloses a method for constructing a three-dimensional data model based on a real estate registration result. The method comprises the following steps: 1) converting a layered householdgraph in the real estate registration result into a shp format; 2) performing topology processing on the converted layered household graph data in the shp format; 3) creating a two-dimensional vectordata set formed by sequentially superposing a plurality of floor elements of the building from a base layer; 4) stretching the geometrical objects in the two-dimensional vector data set from the baselayer in sequence according to the layer number information, setting the stretching height according to the actual floor height of the building, and generating a building three-dimensional white moldwith a multi-layer structure; 5) performing style and texture mapping on the stretched three-dimensional white mold, and 6) associating the three-dimensional model of the building with business attribute data in a real estate registration result. According to the method, a three-dimensional data model meeting the real estate business management requirement can be constructed without additionallyconsuming a large amount of manpower and material resources to collect building field data.

Description

technical field [0001] The invention relates to the technical field of real estate registration, in particular to a method for building a three-dimensional data model based on real estate registration results. Background technique [0002] Build a data model based on real estate registration results, that is, based on existing real estate registration data, build a data model that meets the requirements of real estate business management without spending a lot of manpower and material resources to collect on-site data. [0003] In the past, real estate registration in my country was carried out by different departments according to different real estate management departments. It was in a state of decentralized management, and basically adopted a management system based on a two-dimensional plane. In order to further standardize the real estate market and related real estate management, the state has been implementing a unified real estate registration system. When the "Pro...

AI Technical Summary

Problems solved by technology

[0005] The current three-dimensional technology of building models stays on the shape and facade of the building. Through manual collection of photos and manual modeling, the external performance is consistent with the current situation, and the internal structure and apartment type of each building cannot be detailed. Information on the division and ownership of property rights, this status is inconsistent with the specific requirements of real estate business management

Moreover, in the existing real estate registration data, there are no photographs of the complete facade of the building

[0006] In addition, the traditional 3D building model data is stored in a file format based on 3D building model files such as 3dml, 3dmx and facade image files such as jpeg, which has problems such as difficult update and complicated model generation process

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