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Simplified DWG two-dimensional engineering drawing implementation method

A technology of engineering drawings and implementation methods, which is applied in the generation of 2D images, geometric CAD, image data processing, etc., can solve the problems of long download time, laborious transmission, large files, etc., and achieve the effect of convenient transmission

Active Publication Date: 2022-02-01
中筑创联建筑科技(北京)有限公司
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Problems solved by technology

The traditional drawing is more commonly used in DWG format, which is usually drawn or modified on the engineer’s computer. After completion, the DWG drawing is uploaded to the OA or design collaboration system, and then downloaded for review by the superior. The existing drawing format is roughly divided into picture format, pdf format, DWF format, and DWG format, but the image format and pdf format cannot be edited and modified interactively with graphics, so most of the drawings in the prior art are still stored and transmitted in DWG format. Due to the large content of architectural drawings, the file occupies The memory is large, and the file is too large to be transmitted, sent, and received through ordinary software, and the transmission and download take a long time, and the overall transmission is laborious

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  • Simplified DWG two-dimensional engineering drawing implementation method

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Embodiment Construction

[0017] 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 some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...

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Abstract

The invention relates to the technical field of drawing data compression, and discloses a simplified DWG two-dimensional engineering drawing implementation method, which comprises the following steps: publishing a DWG file in a DWF format, and adding ID information to a graphic object in the DWF file; extracting information of the graphic objects and respectively storing the information; decompressing the DWF file, extracting a .w2d format text file, performing data analysis on the .w2d format text file, compressing coordinate data, and generating a lightweight graphic binary file. According to the method, the graphic object coordinate values in the text file are compressed and converted, the graphic object coordinates correspond to the attribute information through the ID information, the size of the drawing file is reduced, meanwhile, the data consistency is guaranteed, existing AutoCAD software is well compatible, and the drawing file is convenient to transmit.

Description

technical field [0001] The invention relates to the technical field of drawing data compression, in particular to a method for realizing simplified DWG two-dimensional engineering drawings. Background technique [0002] DWG is a proprietary file format used by computer-aided design software AutoCAD and AutoCAD-based software to save design data. Autodesk owns, develops and updates the DWG file format. Usually, DWG will be updated every few years. Updates come as the company adds new features to AutoCAD. [0003] With the continuous improvement of the field of construction engineering informatization, engineers in the field of construction rely more and more on online collaborative work, and in the field of construction engineering design, one of the main communication media is drawings. The traditional drawing is more commonly used in DWG format, which is usually drawn or modified on the engineer’s computer. After completion, the DWG drawing is uploaded to the OA or design ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00G06F30/10
CPCG06T11/00G06F30/10
Inventor 王锦银廖启隆郑则芳
Owner 中筑创联建筑科技(北京)有限公司
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