CN111444571B - BIM-based electromechanical air duct flange batch processing and drawing method - Google Patents
BIM-based electromechanical air duct flange batch processing and drawing method Download PDFInfo
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Abstract
The invention provides a BIM-based electromechanical air duct flange batch processing and drawing method, and relates to the technical field of data processing. The method comprises the following steps in sequence: s1, establishing a Revit project template file; s2, drawing an air pipe; s3, drawing a flange self-adaptive family; s4, compiling Dynamo program codes for establishing a refined air duct model: (1) model import, (2) model parameterization, (3) model dimensionality reduction, (4) automatic family batch addition, and (5) data export. When the method is used for drawing, a two-dimensional air pipe line segment is formed by connecting all end points of the three-dimensional air pipe, so that the dimension reduction of the air pipe is realized, and the computer force requirement is reduced; then, setting segmentation parameters based on Dynamo, and automatically adding segmentation points through a computer to realize automatic segmentation of the two-dimensional air pipe line segment; then replacing the segmentation points with self-adaptive flange families based on Dynamo to realize automatic batch flange addition; the heavy drawing task is lightened, and the fineness of the BIM model is improved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a BIM-based electromechanical air duct flange batch processing and drawing method.
Background
With the improvement of computer hardware, the imagination of skyscraping of designers can be better represented. Therefore, the Building is more beautiful and more complex, the traditional two-dimensional drawing cannot intuitively reflect the construction form, and the Building Information Modeling (BIM) technology is developed accordingly. The BIM technology is widely used in the electromechanical industry, and particularly, the BIM technology is basically popularized and used in the electromechanical industry of large key public buildings because the characteristics (visualization, coordination, simulation, optimization and drawing) of the BIM are well matched with the requirements of the electromechanical industry.
BIM is an information management tool for architecture, engineering and civil engineering, and is a technical regression from two-dimensional drawing to three-dimensional model drawing in the building industry.
However, when the electric air pipe flange of the BIM drawing machine is utilized, drawing work needs to be carried out one by one, and the drawing task is very heavy, so that the model fineness is often reduced by designers in the design stage, and the data loss of the flange model is caused.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a BIM-based electromechanical air duct flange batch processing and drawing method, which solves the problem that electric air duct flanges are required to be drawn one by one when a BIM is used for drawing.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a BIM-based electromechanical air duct flange batch processing drawing method comprises the following steps in sequence:
s1, establishing a Revit project template file
Determining related information of air pipe types, air pipe materials and air pipe appearances according to a design drawing, classifying the air pipes according to the information, establishing an air pipe system family through Revit and establishing a project template file;
s2, drawing an air duct
Determining the position and the geometric dimension of the air pipe according to a design drawing, and drawing the air pipe in a Revit project template file;
s3, drawing a flange self-adaptive family
According to the requirements of design drawings, drawing a self-adaptive flange family of which the flange section dimension is changed according to the air pipe section dimension, and establishing a project air pipe flange family library for facilitating later hanging;
s4, compiling Dynamo program codes for establishing refined wind pipe model
The operation flow of the program is as follows:
(1) model import: opening Dynamo and introducing a Revit model;
(2) model parameterization: carrying out parameterization processing on the air pipe model based on Dynamo, and extracting the coordinates of the end points of the air pipe; setting a segmentation line according to the air pipe processing requirement, and extracting the coordinates of the starting point and the end point of the segmentation line;
(3) and (3) reducing the dimension of the model: based on the air pipe endpoint coordinates extracted by Dynamo, automatically drawing a multi-segment line to form a two-dimensional segment of a section of a three-dimensional model of the air pipe, reducing the dimension of the air pipe, forming a two-dimensional multi-segment line of an air pipe path, and reducing the computational force requirement on a computer; automatically segmenting the two-dimensional multi-segment line of the air pipe path according to the segmentation line parameters, and extracting the starting point, the end point and the segmentation point coordinates of the two-dimensional multi-segment line of the air pipe path;
(4) automatic family batch addition: based on Dynamo, the coordinates of the segmentation points are numbered, the segmentation points are replaced by adaptive flange families, and automatic batch addition of the adaptive flange families is realized; based on Revit, the adaptive flange family collides with the three-dimensional air pipe model to realize the segmentation of the three-dimensional model and the automatic batch addition of the air pipe adaptive flange family;
(5) data export: counting the number of flange families in Revit to obtain the size of the flange needing to be processed and the number of the flanges with corresponding sizes; and (4) guiding the length of the air pipe sections in Revit, so as to obtain the model, the size and the length of the air pipe to be processed for guiding the processing.
Preferably, in the step (3) of S4, in the process of automatically segmenting the two-dimensional multi-segment line of the air duct path according to the segmentation line parameters, the segmentation line parameters are set based on Dynamo, and then segmentation points are automatically added by the computer according to the segmentation line parameters, so as to implement automatic batch segmentation of the two-dimensional multi-segment line of the air duct path.
Preferably, in the step S1, the duct types include: the air supply pipe, the air return pipe and the smoke exhaust pipe; the tuber pipe material includes: metals and non-metals; the tuber pipe appearance includes: circular cross-section and square cross-section.
Preferably, in the step S2, in the air duct drawing process, the elevation of the air duct is drawn first, then the axis network of the air duct is drawn, and after the axis network and the elevation are drawn, the air duct is drawn again.
Preferably, in the step S2, in the process of drawing the air duct, the air duct is drawn from bottom to top according to floors, and the single-layer air duct is drawn from top left to bottom right, so that omission is avoided.
Preferably, in the step S2, when other BIM software is used for modeling, the data thereof needs to meet "IFC building engineering data exchange standard", and Revit can be imported and identified as a wind pipe system family by Revit.
Preferably, in the step (1) of S4, in the process of introducing the Revit model into Dynamo, the model is subjected to approach screening based on Dynamo, and an air duct model that needs to be segmented and flange-added is selected.
Preferably, in the step (2) of S4, the set segment line attribute includes: maximum length MAX, minimum length MIX, step.
(III) advantageous effects
The invention provides a BIM-based electromechanical air duct flange batch processing and drawing method. Compared with the prior art, the method has the following beneficial effects:
when the method is used for drawing, a two-dimensional air pipe line segment is formed by connecting all end points of the three-dimensional air pipe, so that the dimension reduction of the air pipe is realized, and the computer force requirement is reduced; then, setting segmentation parameters based on Dynamo, and automatically adding segmentation points through a computer to realize automatic segmentation of the two-dimensional air pipe line segment; then replacing the segmentation points with self-adaptive flange families based on Dynamo to realize automatic batch flange adding; the heavy drawing task is lightened, and the fineness of the BIM model is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart of a batch processing charting method for electromechanical air duct flanges in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides an electromechanical air pipe flange batch processing and drawing method based on BIM, and solves the problem that when the electromechanical air pipe flange of a BIM drawing machine is utilized, drawing needs to be carried out one by one.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
in the prior art, there are two methods for segmenting the air duct based on Revit: one is to adopt an interruption command to perform interruption operation on each subsection point and input the interruption length to realize the parameterized subsection process; the other method is to adopt copying and array commands to add self-adaptive flange family collision air pipes to carry out three-dimensional model segmentation, and the method needs to carry out repeated operation on each air pipe and set various complex parameter rules to realize parameterized segmentation. The addition of the above two types of air pipe flange families based on the three-dimensional model can be realized only by a computer with higher calculation force, and all the addition needs to be segmented firstly, and then the parameter attribute of each segment can be set, so that the automatic segmentation cannot be performed, and the batch processing and the automatic addition cannot be realized, and the drawing task is very heavy.
In the drawing process, the method adopted by the embodiment of the invention forms a two-dimensional air duct line segment by connecting all end points of the three-dimensional air duct, realizes air duct dimension reduction and reduces the computer computing force requirement; then, setting segmentation parameters based on Dynamo, and automatically adding segmentation points through a computer to realize automatic segmentation of the two-dimensional air pipe line segment; then replacing the segmentation points with self-adaptive flange families based on Dynamo to realize automatic batch flange adding; the heavy drawing task is lightened, and the fineness of the BIM model is improved. Secondly, the embodiment of the invention simplifies the drawing process and improves the working efficiency of construction managers. In addition, the embodiment of the invention can obtain a refined BIM model which can be exported as a CAD drawing, is convenient for material ordering and air pipe processing, and saves materials.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example (b):
as shown in fig. 1, the invention provides a BIM-based electromechanical air duct flange batch processing and drawing method, which sequentially comprises the following steps:
s1, establishing a Revit project template file
Determining related information such as air pipe types (air supply, air return, smoke exhaust and the like), air pipe materials (metal and nonmetal), air pipe appearances (circular section, square section and the like) and the like according to a design drawing, classifying the air pipes according to the information, establishing an air pipe system family and establishing a project template file through Revit;
s2, drawing an air duct
According to design drawings, the position and the geometric dimension of the air pipe are determined, the air pipe is drawn in a Revit 'project template file', the elevation is drawn firstly, then the shaft network is drawn, after the shaft network and the elevation are drawn, the air pipe is drawn according to floors from bottom to top, the single layer is drawn from top left to bottom right, and omission is avoided. When other BIM software is adopted for modeling, the data of the BIM software needs to meet the IFC (information exchange standard) of the building engineering data, revit can be imported and identified as a wind pipe system family by the Revit;
s3, drawing a flange self-adaptive family
According to the requirements of design drawings, drawing an adaptive flange family which changes the section size of a flange according to the section size of an air pipe, and establishing an item of an air pipe flange family library, so as to facilitate later hanging;
s4, compiling Dynamo program codes for establishing refined wind pipe model
The operation flow of the program is as follows:
(1) model import: opening Dynamo, introducing a Revit model, performing entrance screening on the model based on the Dynamo, and selecting an air pipe model needing to be segmented and added with a flange;
(2) model parameterization: carrying out parameterization processing on the air pipe model based on Dynamo, and extracting the coordinates of the end points of the air pipe; setting a segmentation line according to the air pipe processing requirement, wherein the attributes of the segmentation line comprise a maximum length MAX, a minimum length MIX and a step pitch, and extracting the coordinates of a starting point and an end point of the segmentation line;
(3) and (3) reducing the dimension of the model: based on the air pipe endpoint coordinates extracted by Dynamo, a multi-segment line (pline) is automatically drawn to form a two-dimensional line segment of the section of the three-dimensional model of the air pipe, the dimension of the air pipe is reduced, a two-dimensional multi-segment line of an air pipe path is formed, and the computational power requirement on a computer is reduced; then, setting segmentation line parameters based on Dynamo, automatically adding segmentation points through a computer according to the segmentation line parameters, automatically segmenting the two-dimensional multi-segment line of the air pipe path, and extracting the starting point, the end point and the segmentation point coordinates of the two-dimensional multi-segment line of the air pipe path;
(4) automatic family batch addition: based on Dynamo, the coordinates of the segmentation points are numbered, the segmentation points are replaced by adaptive flange families, and automatic batch addition of the adaptive flange families is realized; based on Revit, the self-adaptive flange family collides with the three-dimensional air pipe model to realize the segmentation of the three-dimensional model and the automatic batch addition of the self-adaptive flange family of the air pipe;
(5) data export: counting the number of flange families in Revit to obtain the size of the flange needing to be processed and the number of the flanges with corresponding sizes; and (4) guiding the length of the air pipe sections in Revit, so as to obtain the model, the size and the length of the air pipe to be processed for guiding the processing.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. when the method provided by the embodiment of the invention is adopted for drawing, a two-dimensional air duct line segment is formed by connecting all end points of the three-dimensional air duct, so that the dimension reduction of the air duct is realized, and the computer force requirement is reduced; then, setting segmentation parameters based on Dynamo, and automatically adding segmentation points through a computer to realize automatic segmentation of the two-dimensional air pipe line segment; then replacing the segmentation points with self-adaptive flange families based on Dynamo to realize automatic batch flange adding; the heavy drawing task is lightened, and the fineness of the BIM model is improved.
2. By adopting the method provided by the embodiment of the invention, the drawing process is simplified, and the working efficiency of construction managers is improved.
3. By adopting the method provided by the embodiment of the invention, a refined BIM model can be obtained and can be exported as a CAD drawing, so that the ordering of materials and the processing of the air duct are facilitated, and the materials are saved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A BIM-based electromechanical air duct flange batch processing and drawing method is characterized by sequentially comprising the following steps:
s1, establishing a Revit project template file
Determining related information of air pipe types, air pipe materials and air pipe appearances according to a design drawing, classifying the air pipes according to the information, establishing an air pipe system family through Revit and establishing a project template file;
s2, drawing an air duct
Determining the position and the geometric dimension of the air pipe according to a design drawing, and drawing the air pipe in a Revit project sample file;
s3, drawing a flange self-adaptive family
According to the requirements of design drawings, drawing a self-adaptive flange family of which the flange section dimension is changed according to the air pipe section dimension, and establishing a project air pipe flange family library for facilitating later hanging;
s4, compiling Dynamo program codes for establishing refined wind pipe model
The operation flow of the program is as follows:
(1) model import: opening Dynamo and introducing a Revit model;
(2) model parameterization: carrying out parameterization processing on the air pipe model based on Dynamo, and extracting the coordinates of the end points of the air pipe; setting a segmentation line according to the air pipe processing requirement, and extracting the coordinates of the starting point and the end point of the segmentation line;
(3) and (3) reducing the dimension of the model: based on the air pipe end point coordinates extracted by Dynamo, automatically drawing a multi-segment line to form a two-dimensional line segment of the section of the three-dimensional model of the air pipe, reducing the dimension of the air pipe, forming a two-dimensional multi-segment line of an air pipe path, and reducing the computational power requirement on a computer; automatically segmenting the two-dimensional multi-segment line of the air pipe path according to the segmentation line parameters, and extracting the starting point, the end point and the segmentation point coordinates of the two-dimensional multi-segment line of the air pipe path;
(4) automatic family batch addition: based on Dynamo, the coordinates of the segmentation points are numbered, the segmentation points are replaced by adaptive flange families, and automatic batch addition of the adaptive flange families is realized; based on Revit, the adaptive flange family collides with the three-dimensional air pipe model to realize the segmentation of the three-dimensional model and the automatic batch addition of the air pipe adaptive flange family;
(5) data export: counting the number of flange families in Revit to obtain the size of the flange needing to be processed and the number of the flanges with corresponding sizes; and (4) guiding the length of the air pipe sections in Revit, so as to obtain the model, the size and the length of the air pipe to be processed for guiding the processing.
2. The BIM-based electromechanical air duct flange batch drawing method of claim 1, wherein in the step (3) of S4, in the process of automatically segmenting the two-dimensional multi-segment line of the air duct path according to the segmentation line parameters, the segmentation line parameters are set based on Dynamo, and then segmentation points are automatically added through a computer according to the segmentation line parameters, so as to realize automatic batch segmentation of the two-dimensional multi-segment line of the air duct path.
3. The BIM-based electromechanical air duct flange batch charting method of claim 1, wherein in the step S1, the air duct types comprise: the air supply pipe, the air return pipe and the smoke exhaust pipe; the tuber pipe material includes: metals and non-metals; the tuber pipe appearance includes: circular cross-section and square cross-section.
4. The BIM-based electromechanical air duct flange batch drawing method is characterized in that in the S2 step, in the air duct drawing process, the elevation of the air duct is drawn firstly, then the axis network of the air duct is drawn, and after the axis network and the elevation are drawn, the air duct is drawn again.
5. The BIM-based electromechanical air duct flange batch drawing method according to claim 1, wherein in the step S2, in the air duct drawing process, the air duct drawing is drawn from bottom to top according to floors, and is drawn from top left to bottom right in a single layer, so that omission is avoided.
6. The BIM-based electromechanical air duct flange batch charting method of claim 1, wherein in the step S2, when other BIM software is adopted for modeling, the data of the BIM-based electromechanical air duct flange batch charting method needs to meet the IFC building engineering data exchange standard, and Revit can be imported and identified as an air duct system family by the Revit.
7. The BIM-based electromechanical air duct flange batch drawing method of claim 1, wherein in the step (1) of S4, the Revit model is introduced into a Dynamo process, the model is subjected to approach screening based on the Dynamo, and an air duct model which needs to be segmented and added with flanges is selected.
8. The BIM-based electromechanical air duct flange batch drawing method according to claim 1, wherein in the step (2) of S4, the set segment line attribute comprises: maximum length MAX, minimum length MIX, step.
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| CN112464328B (en) * | 2020-09-29 | 2024-07-26 | 中国建筑第八工程局有限公司 | Deep design method and system based on BIM technology and atlas |
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| CN114398694A (en) * | 2021-11-29 | 2022-04-26 | 中冶天工集团有限公司 | Method for realizing rapid building information model based on Dynamo program |
| CN115203805B (en) * | 2022-07-20 | 2023-06-13 | 中国建筑西南设计研究院有限公司 | BIM technology-based air duct model generation method, device and readable medium |
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