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A method for transforming the construction coordinate system from the bim arbitrary coordinate transformation system

A coordinate transformation and coordinate system technology, applied in special data processing applications, geometric CAD, design optimization/simulation, etc., can solve the problem of unification of arbitrary coordinate systems and on-site construction coordinate systems, and achieve simple and easy-to-understand calculation theory. Rotation and translation, the effect of programmatic calculation

Active Publication Date: 2020-08-21
THE 4TH CONSTR ENG CO LTD OF CHINA RAILWAY NO 4 ENG GRP +1
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Problems solved by technology

[0008] The invention provides a method for converting the construction coordinate system from any coordinate conversion system of BIM, which solves the problem that the arbitrary coordinate system and the on-site construction coordinate system cannot be unified when drawing the BIM building model, and at the same time ensures that the model is performing angle conversion and distance translation The accuracy of the process, and improve the accuracy of the converted coordinates and the efficiency of the conversion

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  • A method for transforming the construction coordinate system from the bim arbitrary coordinate transformation system
  • A method for transforming the construction coordinate system from the bim arbitrary coordinate transformation system
  • A method for transforming the construction coordinate system from the bim arbitrary coordinate transformation system

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Embodiment Construction

[0023] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] The present invention uses the known control points A, B in the construction coordinate system and the known axis intersection coordinates C, D in the construction plan layout to calculate the azimuth (included angle) and each The sides are long. Grasp any coordinate value of axis intersection 1 and 2 in any coordinate system of the BIM model, and calculate any azimuth and distance of axis intersection 1 and 2, and invert the coordinates of points A and B in any coordinate system. The arbitrary coordinate n of each structure captured in the BIM model and the arbitrary coordinate values ​​of A and B are back-calculated, and the values ​​such as the angle and side length between the arbitrary coordinate point n of each structure and the control points A and B are obtained based on the reverse calculation. Using the coordinates of control...

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Abstract

The invention provides a method for converting an arbitrary coordinate conversion system of BIM into a construction coordinate system. The method comprises the steps of calculating azimuth angles and various side lengths between known control points and axis intersections separately by using the known control points in the construction coordinate system and known axis intersection coordinates in a construction plane layout chart; grabbing arbitrary coordinate values of the axis intersections in the arbitrary coordinate system of a BIM model, calculating arbitrary azimuth angles and distances of the axis intersections and reversely deducing the coordinates of the control points in the arbitrary coordinate system; and carrying out back calculation on arbitrary coordinates of various structures grabbed in the BIM model and arbitrary coordinate values of the control points, calculating the numerical values, such as the included angles and the side lengths, between arbitrary coordinate points of the structures and the control points and calculating the coordinates of various structures grabbed in the BIM model, thereby meeting site construction layout.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a method for converting a construction coordinate system from a BIM arbitrary coordinate conversion system. Background technique [0002] With the rapid promotion and application of BIM technology in the field of building construction, because the BIM model is drawn at any position in the software, its coordinate system is an arbitrary coordinate system, and the coordinates of any coordinate system in the BIM model must be converted into the construction coordinate system. Only the structural feature points captured in the BIM model can be directly set out on the construction site. [0003] The current common method is: convert the BIM building model into DXF form, and then import it into CAD software, and convert the model into a plane view in CAD by calculating the rotation angle and translation distance, and rotate and translate the graphics according to the calc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06F30/20
CPCG06F30/13G06F30/20
Inventor 童鹏程刘坤王根杰韩飞落高媛陈小文刘奎詹涛涛
Owner THE 4TH CONSTR ENG CO LTD OF CHINA RAILWAY NO 4 ENG GRP
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