CN114816381A - Construction engineering MBD three-dimensional labeling method, electronic equipment and storage medium - Google Patents
Construction engineering MBD three-dimensional labeling method, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a construction engineering MBD three-dimensional labeling method, electronic equipment and a storage medium, wherein the method comprises the following steps: s1, carrying out three-dimensional modeling through building design software; s2, importing the created model into the Rhino; s3, creating a label class node through Grasshopper; s4, picking up the corresponding model needing to be labeled and the model characteristics by using the static nodes in the Grasshopper; s5, determining a labeling plane according to the picked model; s6, processing the picked model, the model characteristics and the determined labeling plane according to different requirements of different labeling class nodes, inputting the processed model, the model characteristics and the determined labeling plane into the labeling class nodes created in the step S3, and setting labeling parameters; s7, compiling a function of calculating the angle between the view camera and the annotation plane by utilizing a Python node in Grasshopper, thereby automatically controlling the annotation display and hiding effect; s8, saving the Grasshopper result in the step S7, and packaging the Rhino file and the Grasshopper program file. The invention can realize the MBD three-dimensional labeling function of the three-dimensional model of the building on the common software platform for building design.
Description
Technical Field
The invention belongs to the technical field of computer aided design, and particularly relates to an architectural engineering MBD three-dimensional labeling method, electronic equipment and a storage medium.
Background
With the development of society and the continuous progress of science and technology, the digital reform has become the inevitable development trend of the building industry. Against this background, the development and planning of the building industry defines the direction of accelerating the cooperative development of intelligent construction and novel building industrialization, and BIM is an extremely important supporting technology.
The BIM three-dimensional design technology has been rapidly developed in recent years. However, the BIM three-dimensional design technology is still deficient and needs to be perfected due to factors such as element integration barrier, flow integration barrier and organization integration barrier in the building industry. At present, a mode of taking a two-dimensional drawing as a main mode and taking a three-dimensional model as an auxiliary mode is adopted for delivering BIM three-dimensional design results in the construction industry. Generally, a three-dimensional model is created first, and then a two-dimensional drawing is drawn for delivery, but the process cannot fully utilize three-dimensional effective information provided by the BIM three-dimensional model, and the process is not essentially different from the traditional mode on the whole.
With reference to past experience in the development of the construction industry, relevant experience can be drawn from the manufacturing industry closest to the construction industry. The manufacturing industry has higher digitalization degree and mature system, and the technical development of the manufacturing industry can provide some references for the building industry. Among them, MBD is one of the techniques that can be used for reference. The MBD is a product digital Definition technology oriented to computer application, and can integrate labeling information such as product dimension, geometric tolerance, reference and the like related to a three-dimensional Model into the three-dimensional Model.
Mainstream software supporting native MBD three-dimensional labeling in the market at present comprises UG, Catia and Solidwork, and is mainly applied to relevant flows of the manufacturing industry and is very different from common software in the building industry. Although the Rhino is originally applied to product design as a mainstream software of the current building design, the Rhino is generally accepted and applied in the building design industry at a later stage due to the high-freedom modeling capability and the expandability of a visual programming platform such as Grasshopper. In Rhino, a designer can directly perform space labeling in a conventional coordinate form, but cannot freely perform labeling on nonstandard space planes such as inclined planes, and the application range of the spatial labeling is limited.
Disclosure of Invention
The invention aims to provide a construction engineering MBD three-dimensional labeling method based on Rhino and Grasshopper, electronic equipment and a storage medium, and the MBD three-dimensional labeling function of a three-dimensional model of a building on a common software platform for building design is realized.
In order to achieve the aim, the invention provides an MBD three-dimensional labeling method for constructional engineering, which comprises the following steps:
s1, performing three-dimensional modeling through common building design software, such as Sketchup, Revit, Blender, Rhino and the like;
s2, importing the model created in the STEP S1 into the Rhino in a general format such as STEP, FBX and the like or directly opening the model created by the Rhino;
s3, creating a label node through Grasshopper;
s4, picking up the corresponding model to be marked and the model characteristics by using nodes such as static Point, Curve, Surface and Brep in Grasshopper;
s5, determining a labeling Plane according to the model picked in the step S4, and creating the labeling Plane by using a Plane node in Grasshopper;
s6, correspondingly inputting the data in the steps S4 and S5 to the marking node created in the step S3, and setting parameters such as marking offset size, character size and the like;
s7, compiling a view camera and marking plane angle function by utilizing a Python node in Grasshopper, thereby automatically controlling marking display and hiding effects and avoiding hedgehog phenomenon caused by excessive data;
s8, storing the Grasshopper result in the step S7, and packaging the Rhino file and the Grasshopper program file to be transmitted to the next flow.
Wherein, Grasshopper is visual programming software in the Rhino platform, and the functions of the Python compiler can be realized in the Grasshopper platform.
The invention also provides an electronic device comprising one or more processors and a memory; one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to perform the construction project MBD three-dimensional labeling method described above.
The invention also provides a computer readable storage medium, wherein a program code is stored in the computer readable storage medium, and when the program code runs, the building engineering MBD three-dimensional labeling method is executed.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the applicability is high, and the use threshold is reduced by using a common building design modeling software platform;
2. the controllability is strong, the visual programming function of the Grasshopper enables the model and the label to form logic linkage, the repeated labeling workload caused by model modification in the design process is greatly reduced, and the working efficiency is improved;
3. the expandability is strong, and the visual programming capability based on the Grasshopper can easily integrate multi-platform transmission data and carry out data transmission among different software, thereby perfecting the MBD technology workflow.
Drawings
FIG. 1 is a flow chart of a construction engineering MBD three-dimensional labeling method according to an embodiment of the invention;
FIG. 2 is a schematic view of a monolithic steel structure model according to an embodiment of the present invention;
FIG. 3 is a schematic view of a local node of a steel structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of three-dimensional labeling of a three-dimensional model according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the three-dimensional labeling "hedgehog" according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides a construction engineering MBD three-dimensional labeling method based on Rhino and Grasshopper, which can finish labeling on non-standard space planes such as inclined planes and the like, and provides a new technical path for realizing an MBD technology in the construction industry.
The invention utilizes Grasshopper to carry out MBD three-dimensional labeling on the building engineering model, avoids labeling the hedgehog phenomenon under the condition of realizing the three-dimensional labeling, and provides a new solution for the MBD three-dimensional labeling technology of the building engineering three-dimensional model. As shown in fig. 1, the construction engineering MBD three-dimensional labeling method based on Rhino and Grasshopper in the embodiment of the present invention includes the following steps:
and S1, performing three-dimensional modeling through common building design software, such as Sketchup, Revit, Blender, Rhino and the like, and creating a conventional three-dimensional model as far as possible in the Rhino platform.
Without limiting the software platform for creating the three-dimensional model, the method recommends the use of the Rhino platform for model creation.
And S2, importing the model created in the STEP S1 into the Rhino in a general format such as STEP, FBX and the like or directly opening the model created by the Rhino, and performing subsequent operations on the Rhino software platform.
If the model is the native Rhino model, the model can be directly used, models created by other software need to be exported into a universal format and then imported into the Rhino, the overall steel structure model result is shown in fig. 2, and the steel structure local node is shown in fig. 3.
And S3, creating a marking node through Grasshopper, wherein the marking node mainly comprises a straight line mark, an angle mark, a diameter mark, a radius mark and the like.
And e, creating a straight line marking and angle marking node according to the steel structure local node requirement in the step S2.
And S4, picking up the corresponding model and model characteristics to be labeled by using nodes such as static Point, Curve, Surface and Brep in Grasshopper.
And picking up the model features needing to be labeled, for example, picking up the edges needing to be labeled by using the Curve node.
And S5, determining a labeling Plane according to the model picked in the step S4, and creating the labeling Plane by using a Plane node in Grasshopper.
Because the model is a three-dimensional model and the spatial data of the model is complex, the label Plane is set through the Plane node in order to ensure the readability of the label.
And S6, processing the data in the steps S4 and S5 according to different requirements of different marking class nodes, inputting the processed data to the marking class node created in the step S3, and setting parameters such as marking offset size and character size.
After the Curve node data in the step S4 is processed into the start point data and the end point data, the start point data and the end point data and the Plane node in the step S5 are respectively and correspondingly input to the PointA, pointB and Plane interfaces of the Aligned Dimension, and parameters such as the marked cheap size and the character size are set.
S7, compiling a function of calculating the angle between the view camera and the marking plane by utilizing the Python node in the Grasshopper, thereby automatically controlling the marking display and hiding effect, and avoiding the hedgehog phenomenon caused by excessive data as shown in figure 4.
As shown in fig. 5, camera data, such as a normal direction of a line of sight, a coordinate position of a camera, and the like, in the Rhino active window is obtained through a Python node writing program, and an included angle between the normal direction of the line of sight and a marked plane is calculated, so as to determine whether to display content on the marked plane.
S8, saving the Grasshopper result in the step S7, packaging the Rhino file and the Grasshopper program file, and transmitting the package to the next process, wherein the Rhino file and the Grasshopper program file are files for others.
The invention also provides an electronic device comprising one or more processors and a memory; one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to perform the construction project MBD three-dimensional labeling method described above.
The invention also provides a computer readable storage medium, wherein a program code is stored in the computer readable storage medium, and when the program code runs, the building engineering MBD three-dimensional labeling method is executed.
In conclusion, the invention realizes the MBD three-dimensional labeling of the building engineering based on the Rhino and Grasshopper, reduces the use threshold of the MBD technology in the building engineering industry, improves the effective information use efficiency of the three-dimensional model of the building engineering, enriches the delivery content of BIM technical results and provides a new application method of the digital transformation technology in the building industry.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (8)
1. The construction engineering MBD three-dimensional labeling method is characterized by comprising the following steps:
s1, carrying out three-dimensional modeling through building design software;
s2, importing the created model into the Rhino;
s3, creating a label node through Grasshopper; the Grasshopper is visual programming software in the Rhino platform, and the labeling type nodes comprise straight line labeling, angle labeling, diameter labeling and radius labeling;
s4, picking up the corresponding model needing to be labeled and the model characteristics by using the static nodes in the Grasshopper;
s5, determining a labeling Plane according to the picked model, and creating the labeling Plane by using a Plane node in Grasshopper;
s6, processing the picked model, the model characteristics and the determined labeling plane according to different requirements of different labeling class nodes, inputting the processed model, the model characteristics and the determined labeling plane into the labeling class nodes created in the step S3, and setting labeling parameters;
s7, compiling a function of calculating the angle between the view camera and the annotation plane by utilizing a Python node in Grasshopper, thereby automatically controlling the annotation display and hiding effect;
s8, saving the Grasshopper result in the step S7, and packaging the Rhino file and the Grasshopper program file.
2. The construction engineering MBD three-dimensional labeling method according to claim 1, wherein the construction design software comprises Sketchup, Revit, Blender and Rhino.
3. The construction engineering MBD three-dimensional labeling method according to claim 2, wherein the step S2 is specifically as follows: the models created by the Rhino are directly opened by using the Rhino, and the models created by other building design software are imported into the Rhino in a general format.
4. The construction engineering MBD three-dimensional labeling method according to claim 3, wherein the common format comprises STEP and FBX.
5. The MBD three-dimensional labeling method for the constructional engineering according to claim 1, wherein the static nodes comprise Point, Curve, Surface and Brep.
6. The construction engineering MBD three-dimensional labeling method according to claim 1, wherein the labeling parameters comprise offset size and character size.
7. An electronic device comprising one or more processors and memory;
one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to perform the method for MBD three-dimensional labeling of construction projects of any of claims 1 to 6.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium has a program code stored therein, wherein the program code when executed performs the MBD three-dimensional labeling method for construction engineering according to any one of claims 1 to 6.
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| CN117932764A (en) * | 2024-03-15 | 2024-04-26 | 中南建筑设计院股份有限公司 | MBD-based component three-dimensional text annotation creation method and system |
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