Method for constructing three-dimensional terrain scene model of road

A technology of scene model and road 3D, applied in 3D modeling, structured data retrieval, geographic information database, etc., can solve the problems of high cost and low accuracy of terrain model, save time and labor cost, low cost, convenient Effects of disaster simulation

Inactive Publication Date: 2020-01-24
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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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 highl

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  • Method for constructing three-dimensional terrain scene model of road
  • Method for constructing three-dimensional terrain scene model of road
  • Method for constructing three-dimensional terrain scene model of road

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Embodiment

[0049] Such as Figure 1-Figure 4 As shown, a method for constructing a road three-dimensional terrain scene model includes the following steps:

[0050] (1) Data collection.

[0051] Data collection is the primary task of establishing a highway digital terrain model, including the collection of terrain data along the highway, the collection of tunnel and roadbed engineering drawings, and the collection of remote sensing image maps.

[0052] Topographic data is mainly a two-dimensional topographic map represented by contour lines. Engineering drawings of tunnels and subgrades should include cross-section data, longitudinal section data, and horizontal curve information of the center line. Topographic maps and engineering drawings are provided by relevant departments.

[0053] The remote sensing image map uses the map download software to download the image map of the corresponding area through four-point coordinates, etc., and saves it as a tiff format image. At this point, t...

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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...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06F16/29G06Q50/26
CPCG06Q50/26G06T17/05G06F16/29
Inventor 牟瑞芳向文杰于秀珍黄湘
Owner SOUTHWEST JIAOTONG UNIV
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