Method and system for extracting two-dimensional electric construction drawing from digitized three-dimensional model

Abstract

The invention discloses a method and a system for extracting a two-dimensional electric construction drawing from a digitized three-dimensional model. The method for extracting the two-dimensional electric construction drawing from the digitized three-dimensional model comprises the following steps of: obtaining identifying information of electrical equipment quoted in the digitized three-dimensional model; filtering the electrical equipment in the digitized three-dimensional model when the identifying information of the electrical equipment is identical with that in a two-dimensional block database and obtaining a first two-dimensional graph according to the digitized three-dimensional model of the remaining portion; finding two-dimensional blocks corresponding to identifying information of the electrical equipment from the two-dimensional block database when the identifying information of the electrical equipment is identical with that in the two-dimensional block database to obtain a second two-dimensional graph; synthesizing the two-dimensional electric construction drawing according to the first two-dimensional graph and the second two-dimensional graph. According to the method and the system for extracting the two-dimensional electric construction drawing from the digitized three-dimensional model, the drawing efficiency and drawing depth can be effectively improved through the calling of drawing data of the database.

Description

【Technical field】 [0001] The invention relates to the technical field of substation design, in particular to a method and system for extracting a two-dimensional electrical construction drawing from a digital three-dimensional model. 【Background technique】 [0002] After the technical means of domestic substation design has transitioned from the original manual drawing to two-dimensional CAD design, it is now changing to three-dimensional digital design. The 3D digital design technology of power substation is a digital tool applied to the design and construction management of power substation projects. It integrates relevant information of various equipment through 3D visualization models, and shares and coordinates information during the whole life cycle of project planning, operation and maintenance. Transmission, so that engineers and technicians can correctly understand and efficiently respond to various equipment information, provide a basis for collaborative work for t...

AI Technical Summary

Problems solved by technology

[0011] At present, in the process of substation design, most equipment manufacturers can only provide two-dimensional drawings. Generally, design units directly use the manufacturer's two-dimensional drawings for processing and design. In three-dimensional design, the three-dimensional model is blanked and projected to obtain Because the plane graphics have not undergone secondary processing, the details are not handled properly, and the depth of the construction drawing is often not reached, and a large number of manual adjustments are required

[0012] On the other hand, when the 3D model is large, it takes a lot of time and computer resources to display the 3D model, and the subsequent blanking and projection operations are often inefficient due to insufficient computer resources, and frequent operations are required during the operation. Switch memory pages, so the quality requirements for the drawing application are quite high, a little carelessness will cause the software to crash and exit, and all previous efforts will be wasted

According to the existing general standards, when the 3D model is large, it takes half an hour, sometimes even more than an hour, to generate drawings normally, and the drawing efficiency is very low

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