Method for finely dividing hallway from large living room space of CAD drawing
A technology of fine division and large space, applied in the fields of instrument, calculation, character and pattern recognition, etc., can solve the problems of difficult separation of the entrance and no demarcation line.
Pending Publication Date: 2022-07-08
上海品览数据科技有限公司
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Problems solved by technology
[0003] The living room space often appears in CAD construction drawings, but in most living room drawings, the living room, entrance, and dining room will be drawn in the same area, and there is no obvious dividing line between them, so it is difficult to separate the entrance from the mixed large space
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[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0030] like Figure 1-2 As shown, the present invention provides a method for finely dividing a hallway from a large space of a living room in a CAD drawing, the method comprising the following steps:
[0031] S1. The large living room, corridor, stairwell, and front room are obtained by accurately dividing the residential space on the CAD drawing;
[0032] S2. By finding the largest inscribed rectangle in the large living room space, the remaining living room space and a large rectangular space are obtained;
[0033] S3. Step S2 is repeated until a complete large living room space is di...
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The invention discloses a method for finely dividing hallways from a large living room space of a CAD drawing. The method comprises the following steps that S1, the large living room space, a corridor, a staircase, a front room and a door are obtained from the drawing; s2, finding an inscribed rectangle with the largest living room large space, and obtaining the remaining living room space and a rectangular large space; s3, dividing the living room into n rectangles; s4, civil engineering connecting lines of all doors are obtained through steps in the method for precisely segmenting the residential space on a patent CAD drawing; s5, finding out a door separating the large space of the original living room from the corridor / staircase / front room, wherein the door is an entrance door; and S6, judging which rectangular space is adjacent to the obtained entrance door, wherein the adjacent rectangular space is the divided hallway space. According to the method, all the hallway spaces in the drawing frame can be efficiently and accurately divided, the technical blank of hallway space recognition in a CAD drawing is filled up, and a solid foundation is provided for follow-up hallway space research, examination and the like.
Description
technical field [0001] The invention relates to the technical field of CAD drawing recognition and traditional image processing, in particular to a method for finely dividing a hallway in a CAD drawing. Background technique [0002] CAD construction drawings are drawings that represent the overall layout of the project, the external shape, internal layout, structural structure, interior and exterior decoration, material practices, equipment, and construction of the building through AutoCAD software. CAD construction drawings have the characteristics of complete drawings, accurate expression, and specific requirements. They are the basis for engineering construction, preparation of construction drawing budgets, and construction organization design. They are also important technical documents for technical management. Before construction, it is necessary to carefully review the construction drawings. The review can only enter the construction stage, the purpose is to ensure th...
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Login to View More IPC IPC(8): G06V10/26G06V10/764G06K9/62
CPCG06F18/24
Inventor 郑宇虹李一帆彭靖田
Owner 上海品览数据科技有限公司