Building three-dimensional visual model construction method and system based on BIM
A construction method and construction technology, applied in the field of computer, can solve the problems of partial position offset, measurement error, unable to form building outline, etc., to achieve the effect of reducing errors and high reference value
Inactive Publication Date: 2022-03-29
武汉云合智汇科技有限公司
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[0003] The main purpose of the present invention is to provide a method and system for building a 3D visualization model based on BIM, aiming to solve the problems caused by measurement errors and data conversion, which will cause partial positions to shift and cannot form a complete model. The problem of building outlines
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[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0061] It should be noted that all directional indications (such as up, down, left, right, front, rear, etc.) If the positional relationship, movement conditions, etc. change, the directional indication will also change accordingly, and the connection may be a direct connection or an indirect connection.
[0062] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three rel...
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The invention provides a BIM-based building three-dimensional visual model construction method and system. The method comprises the following steps: acquiring a mass center of a specified building, and acquiring measurement data of the specified building; performing standardization processing on the measurement data; an outer wrapping ball of the designated building is constructed, and a first ray is led out; calculating a first distance value to obtain an eigenvalue vector of the specified building; emitting a series of second rays; acquiring a second distance value; calculating an average value of the second distance values, and calculating a standard deviation of each second distance based on the average value; calculating a shape-diameter function of each first target intersection point to obtain a shape-diameter function feature vector of the specified building; and inputting the data into a pre-trained extreme learning machine for three-dimensional modeling to obtain a three-dimensional model of the specified building, thereby establishing a complete building contour and reducing errors of the three-dimensional model.
Description
technical field [0001] The present invention relates to the field of computers, in particular to a BIM-based building three-dimensional visualization model building method and system. Background technique [0002] At present, in the traditional 3D model generation method, the coordinate measuring equipment is generally used to measure the 3D coordinates of the measured object, but due to the measurement error and the error caused by the data conversion, the position of the part will shift and cannot form a The complete building outline, resulting in a large error in the generated 3D model. Contents of the invention [0003] The main purpose of the present invention is to provide a method and system for building a 3D visualization model based on BIM, aiming to solve the problems caused by measurement errors and data conversion, which will cause partial positions to shift and cannot form a complete model. The problem of building outlines. [0004] The invention provides a ...
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Login to View More IPC IPC(8): G06F30/27G06T17/00G06N3/08G06F30/13
CPCG06F30/27G06T17/00G06N3/08G06F30/13
Inventor 郝庆锋万星
Owner 武汉云合智汇科技有限公司