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EICAD and IFC route data automatic conversion method, medium and system

A technology of automatic conversion and data, applied in geometric CAD, image data processing, 2D image generation, etc., can solve the problems of incompatibility with BIM core modeling software, and achieve the effect of simple operation, guaranteed accuracy, and strong compatibility

Active Publication Date: 2021-03-16
TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Liang Xiaolong's paper "Interactive Data Interface Program between EICAD Route Design Software and Bentley Platform" ("Highway", No. 12, 2019) discloses the interface design between EICAD route data and Bentley platform, which can meet the data transfer requirements of EICAD and Bentley platforms, but It is highly targeted and is only applicable to a specific BIM software platform such as the Bentley platform, and cannot be compatible with other BIM core modeling software

Method used

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  • EICAD and IFC route data automatic conversion method, medium and system
  • EICAD and IFC route data automatic conversion method, medium and system
  • EICAD and IFC route data automatic conversion method, medium and system

Examples

Experimental program
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Embodiment 1

[0054] Such as figure 1 As shown, the present embodiment provides a method for automatic conversion of route data between EICAD and IFC, comprising the following steps:

[0055] Step 1. Data input and packaging.

[0056] Such as image 3 , Figure 4 and Figure 5 As shown, extract EICAD's horizontal and vertical curve design files and broken link design files in the form of byte streams, and encapsulate the line type data of horizontal curves and vertical curves with pre-created data model classes.

[0057] According to the route data structure of EICAD and IFC, the pre-created data model classes include straight line data model classes for horizontal and vertical curves, circular arc (or circular curve) data model classes, and transitional curve data model classes for flat curves.

[0058] Step 2, data processing.

[0059] During data processing, the data of horizontal curves and vertical curves are processed separately. The linear unit types of horizontal curves include...

Embodiment 2

[0095] Such as figure 2 As shown, the present embodiment provides a route data automatic conversion system between EICAD and IFC, including an input device 1, a data processing center 2 and an output device 3, wherein the input device 1 is used to obtain the horizontal and vertical curve design files of the EICAD route data And the broken link design file, which encapsulates the line data of the horizontal curve and the vertical curve with the pre-created data model class; the data processing center 2 is used for the line data of the EICAD horizontal curve, and adopts the building block method route design idea and the route continuity principle , obtain the line element parameters of each line type unit in the IFC horizontal curve, and according to the line type data of the EICAD vertical curve and the broken link design file, adopt the intersection method route design idea and the route continuity principle to obtain each line type in the IFC vertical curve The line element...

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Abstract

The invention relates to an EICAD and IFC route data automatic conversion method, medium and system, and the method comprises the following steps: obtaining a horizontal and vertical curve design fileand a broken link design file of EICAD route data, and packaging the line type data of a horizontal curve and a vertical curve through a pre-created data model class; according to the line type dataof the EICAD flat curve, adopting a building block method route design idea and a route continuity principle to obtain line element parameters of each line type unit in the IFC flat curve; according to the line type data of the EICAD vertical curve and the broken link design file, obtaining line element parameters of each line type unit in the IFC vertical curve by adopting an intersection point method route design thought and a route continuity principle; and creating an IFC route entity, integrating the obtained line element parameters into the attribute values of the IFC line element description statements, and outputting an IFC file. Compared with the prior art, the method is easy to operate, and the route file has editability and compatibility.

Description

technical field [0001] The invention belongs to the field of municipal road and bridge design, in particular to a method, medium and system for automatic conversion of route data between EICAD and IFC. Background technique [0002] With the rapid development of computer information technology, its application in the field of engineering technology has become the lifeblood of the sustainable development of the construction industry in the new economic situation. BIM (Building Information Modelling, Building Information Modeling) technology, as a means of building information, has gradually expanded to the field of infrastructure in recent years, and has been well popularized and applied. Using BIM core modeling software to carry out forward design or reverse modeling of roads and bridges is the most common BIM application direction in the design stage. In order to avoid repeated route drawing work, it is necessary to import existing route design data into 3D modeling software...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06T11/20
CPCG06F30/13G06T11/203
Inventor 曹炳勇欧阳智魁施新欣陈莎莎董冰龚辉崔小建
Owner TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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