Method for constructing three-dimensional terrain scene model of road

Abstract

The invention discloses a method for constructing a three-dimensional terrain scene model of a road. The method comprises the following steps: 1) obtaining terrain data along the road, a tunnel, a bridge culvert, a roadbed engineering design drawing and a remote sensing image drawing through existing technical data; 2) mining required data from the acquired data; performing geometric correction onthe obtained remote sensing image map; (3) according to the processed data, constructing a high-precision original terrain curved surface, road section cross section assembling and manufacturing anda road curved surface in sequence by combining a Civil 3D technology; the road curved surface and the original terrain curved surface being subjected to superposition processing, completing filling and excavation processing of the original curved surface, merging the processed original curved surface into 3ds Max, and processing a tunnel and a bridge culvert according to an engineering design drawing and the original curved surface to obtain a digital terrain model; and 4) superposing the remote sensing image map and the digital terrain model to establish an integral terrain scene model. According to the method, the problems of high cost and low precision of an existing terrain model are solved.

Description

technical field [0001] The invention relates to the technical field of traffic facilities, in particular to a method for constructing a three-dimensional terrain scene model of a highway. Background technique [0002] With the continuous development of transportation infrastructure, higher requirements are put forward for operation management and maintenance. The comprehensive transportation infrastructure management platform based on BIM and GIS technology combines the spatial information, attribute information and topography and landform of transportation infrastructure and other large-scale macro scenes together, not only visually expresses the existing transportation infrastructure and its The route passes through the regional terrain and landform environment, and can also quickly and accurately obtain the required information, improving the efficiency of road operation and maintenance management. [0003] In the traffic infrastructure management information platform, i...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a method for constructing a road three-dimensional terrain scene model, which solves the problems of high cost and low precision of existing terrain models. The method of the present invention can realize highly automated and precise road three-dimensional terrain modeling, Then realize the seamless connection between the BIM model of the existing highway transportation infrastructure and the digital terrain model, so that the visualization effect of the BIM model is better

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