CN111063030A - Dynamo-based BIM (building information modeling) parameterized modeling method and device - Google Patents
Dynamo-based BIM (building information modeling) parameterized modeling method and device Download PDFInfo
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Abstract
The invention discloses a BIM (building information modeling) parameterized modeling method and a device based on Dynamo, wherein the method comprises the following steps: dividing a road or a bridge provided by a project construction drawing into components; extracting the position coordinate information and the cross section profile parameter information of the member to an EXCEL table; reading position coordinate information of all components in the EXCEL table, and generating space entity models of all coordinate points; sequentially connecting the coordinate points of all the components into a line to obtain the center line of the fitted road or bridge; converting and acquiring reference position information of all the cross sections of the members according to the position information corresponding to all the cross sections of the members in the EXCEL table; reading the cross section profile parameter information in the EXCEL table, and loading the cross section profile parameter information into the reference position point of the corresponding component; and (4) scanning the profile of the cross section along the central line to obtain a solid model of the corresponding road or bridge. The invention can realize rapid parametric modeling and improve the working efficiency.
Description
Technical Field
The invention relates to the technical field of road and bridge modeling, in particular to a BIM (building information modeling) parameterized modeling method and device based on Dynamo.
Background
The BIM technology refers to a visual digital Building model (BIM for short) constructed based on an advanced three-dimensional digital design solution. The BIM technology is applied to the design stages of bridges, roads, tunnels and the like, can realize rapid modeling, model calculation, drawing output, engineering quantity statistics, collaborative design, digital information construction, construction simulation and creation of a three-dimensional digital model containing complete engineering information, and is completely consistent with a construction site. Dynamo is an efficient computer aided design tool in parameterized building design software, and is an open-source plug-in based on an Autodesk Dynamo information management platform. A set of progressive program flow is set at a predefined node connected with a working interface aiming at a certain problem through a computational design method and a visual programming language, and the problem is solved through basic logic of input, processing and output.
In the field of construction engineering, a parameterized model is one of essential basic models in the field of BIM application, BIM technology is taken as a brand new working idea, and the concepts of comprehensive auxiliary management and full life cycle follow-up bring brand new opportunity for development of the road and bridge industry. On the BIM working platform, the project is decomposed into an informatization and visualization unit, and then a complete virtual reality project model is assembled. The model contains all information of project design, not only can provide bases in the processes of planning, designing, changing and the like for designers through accurate calculation and analysis, but also can be changed and automatically output through drawing linkage, so that the working efficiency is improved, and the repeated labor of the designers is reduced.
Revit, as a main BIM platform software in the industry, is widely applied, but the support of municipal engineering which is designed by relying on a center line concept is relatively weak. In the municipal project, the model quality is greatly influenced by human factors, the repeated labor is more, and the working efficiency is lower in the building period of the BIM model; the informatization degree of the model is not enough and the controllability is not high; the modeling process is not standardized enough, and the precision cannot meet the requirement.
Disclosure of Invention
In order to solve the technical problems, the invention provides a BIM (building information modeling) parameterized modeling method and device based on Dynamo, a computer storage medium and intelligent terminal equipment. Specifically, the technical scheme of the invention is as follows:
on one hand, the invention discloses a BIM (building information modeling) parameterized modeling method based on Dynamo, which comprises the following steps: s1, dividing the road or bridge provided by the project construction drawing into components; s2, extracting the position coordinate information and the cross section profile parameter information of the road or bridge member from the project construction drawing into an EXCEL table; s3, reading the position coordinate information of all the members of the road or the bridge in the EXCEL table by adopting a Dynamo writing program, and generating a space entity model of all coordinate points; s4, sequentially connecting all coordinate points in the step S3 into a line through the Dynamo writing program to obtain a fitted center line of the road or the bridge; s5, converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table; s6, reading the cross section profile parameter information in the EXCEL table by adopting the Dynamo writing program, and loading the cross section profile parameter information into the reference position points of the corresponding components; and S7, driving the cross section profile in the step S6 to scan along the center line in the step S4 through the Dynamo writing program, and acquiring a solid model of the corresponding road or bridge.
Preferably, the Dynamo-based BIM parametric modeling method further includes: s81, when a hole needs to be opened or a hollow model needs to be established, determining a part needing to be opened or the hollow model needs to be established as a target body; s82, obtaining the entity model of the object according to the steps S1-S7; and S83, performing Boolean operation on the entity model of the road or the bridge and the entity model of the target body to generate a BIM model of the corresponding road or the bridge.
Preferably, the step S1 specifically includes: s11, dividing the road plane curve and the road vertical section curve provided by the project construction drawing into N sections respectively; each segment serves as a member of the road.
Preferably, the step S2 specifically includes: s21, extracting three-dimensional coordinate values of all end points of the divided plane curve and road longitudinal section curve of the road by using drawing software, and importing the three-dimensional coordinate values into the EXCEL table; s22, creating corresponding cross section profiles of roads and bridges in Revit according to the project construction drawing, and performing parameter constraint; and then listing all the cross section profile parameters of the road and the bridge into the EXCEL table to form a cross section profile parameter table.
Preferably, the Dynamo-based BIM parametric modeling method further includes: s91, when the position coordinate information of the road or bridge member needs to be modified, modifying the coordinate position information of the corresponding member in the road or bridge in the EXCEL, and reading the parameters in the EXCEL table through the Dynamo program to realize parameterization and rapid adjustment of the solid model or BIM model of the road or bridge; and S92, when the cross section profile parameter information of the road or bridge member needs to be modified, modifying the cross section profile parameter information of the corresponding member in the road or bridge in the EXCEL, reading the parameters in the EXCEL table through the Dynamo program, and realizing the parameterization and rapid adjustment of the solid model or BIM model of the road or bridge.
In a second aspect, the present invention also discloses a BIM parameterized modeling apparatus based on Dynamo, which includes: the construction dividing module is used for dividing the road or the bridge provided by the project construction drawing into components; the information extraction module is used for extracting the position coordinate information and the cross section profile parameter information of the road or bridge member from the project construction drawing into an EXCEL table; the model generation module is used for reading the position coordinate information of all members of the roads or bridges in the EXCEL table by adopting a Dynamo writing program and generating a space entity model of all coordinate points; the fitting module is used for sequentially connecting the coordinate points of all the components into a line to obtain the center line of the fitted road or bridge; the position conversion module is used for converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table; the information loading module is used for reading the cross section profile parameter information in the EXCEL table by adopting the Dynamo compiling program and loading the cross section profile parameter information into the reference position point of the corresponding component; and the model generation module is also used for driving the cross section profile loaded by the information loading module to scan along the center line fitted by the fitting module through the Dynamo compiling program to obtain the entity model corresponding to the road or the bridge.
Preferably, the construction and division module comprises a road division submodule for dividing the road plane curve and the road vertical section curve provided by the project construction drawing into N sections respectively; each segment serves as a member of the road.
Preferably, the information extraction module specifically includes: the coordinate extraction submodule is used for extracting three-dimensional coordinate values of all end points of the segmented plane curve and the segmented road longitudinal section curve of the road by using drawing software and importing the three-dimensional coordinate values into the EXCEL table; the section contour extraction submodule is used for creating corresponding cross section contours of roads and bridges in Revit according to the project construction drawing and carrying out parameter constraint; and then listing all the cross section profile parameters of the road and the bridge into the EXCEL table to form a cross section profile parameter table.
In a third aspect, the present invention further discloses a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, where the computer program, when running, controls a device in which the computer-readable storage medium is located to execute the steps of performing any one of the above-mentioned BIM parametric modeling method based on Dynamo.
In a fourth aspect, the present invention also discloses an intelligent terminal device, including: a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor; the processor is connected with the memory; the processor, when executing the computer program, implements any one of the above-mentioned Dynamo-based BIM parametric modeling method steps.
The invention at least comprises the following technical effects:
(1) the BIM parameterized modeling method and device based on Dynamo can realize rapid parameterized modeling of BIM models of municipal engineering projects, achieve good visualization and improve modeling efficiency and precision.
(2) The BIM parametric modeling method and device based on Dynamo can realize the controllability of the component, particularly can realize the readability and the alterability of the position and the cross section profile parameters of the component, are digital information models in the true sense, and provide great convenience and possibility for the extraction of the engineering quantity, the calculation and the analysis of stress and the like in the deep design of subsequent municipal projects.
(3) According to the modeling method provided by the invention, a modeling worker can complete the establishment of the BIM model of the municipal engineering project only by having the image recognition capability and the Excel summary statistical capability, so that the threshold of the application of the BIM modeling technology is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a flow chart of one embodiment of a Dynamo-based BIM parameterized modeling method of the present invention;
FIG. 2 is a technical roadmap of another embodiment of the Dynamo-based BIM parameterized modeling method of the present invention;
FIG. 3 is a block diagram of the BIM parameterized modeling apparatus based on Dynamo according to an embodiment of the present invention;
fig. 4 is a block diagram of another embodiment of the Dynamo-based BIM parametric modeling apparatus according to the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
The invention discloses a BIM (building information modeling) parameterized modeling method based on Dynamo, which is mainly applied to modeling of upper structures of municipal roads, expressways and various bridges in municipal engineering projects, and the like, and specifically, the modeling method is shown in figure 1 and comprises the following steps:
s1, dividing the road or bridge provided by the project construction drawing into components; specifically, for example, a road is divided into N sections, and each section is a component of the road, for example, a section 1, a section 2, and a section 3.; all the components of the road together constitute the road. Similarly, the bridge superstructure may be divided into N sections, each section representing one member of the bridge.
Preferably, the road plane curve and the road vertical section curve provided by the project construction drawing are respectively divided into N sections; each segment serves as a member of the road. The numerical value of N determines the accuracy of parametric modeling, and the larger the value of N is, the higher the accuracy is.
S2, extracting the position coordinate information and the cross section profile parameter information of the road or bridge member from the project construction drawing into an EXCEL table;
specifically, for example, in the previous step, the road plane curve and the road longitudinal plane curve are divided into N segments, each segment serves as a member of the road, and then the coordinate data of all the divided end points can be selected as the position coordinates of the member. For example, the coordinate values of all end points after the road plane curve and the road vertical section curve are divided, namely (X, Y, Z), are extracted by using Autocad software, and the coordinate values are imported into Excel, namely, the first row of X coordinate values, the second row of Y coordinate values and the third row of Z coordinate values.
In addition, according to a municipal project construction drawing, corresponding cross section profiles of roads and bridges are created in Revit, parameter constraint is carried out, and all parameters of the profile family are listed into Excel to form a profile parameter table. The contour must conform to the boolean rule.
S3, reading the position coordinate information of all the members of the road or the bridge in the EXCEL table by adopting a Dynamo writing program, and generating a space entity model of all coordinate points; specifically, coordinate points in the Excel file are read by using a Dynamo writing program, and a spatial entity model of all the coordinate points can be generated in Dynamo through the step.
S4, sequentially connecting all coordinate points in the step S3 into a line through the Dynamo writing program to obtain a fitted center line of the road or the bridge; that is, all the points generated in step S3 are sequentially connected into a line, again using the Dynamo writer, by which all the fitted road center lines can be generated in Dynamo.
S5, converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table; specifically, the positions corresponding to all cross sections are sorted out in Excel, a position starting point is set to be represented by a number 0, a position end point is represented by a number 1, and a middle point difference value is calculated to obtain position information.
S6, reading the cross section profile parameter information in the EXCEL table by adopting the Dynamo writing program, and loading the cross section profile parameter information into the reference position points of the corresponding components;
and S7, driving the cross section profile in the step S6 to scan along the center line in the step S4 through the Dynamo writing program, and acquiring a solid model of the corresponding road or bridge.
The Dynamo plug-in is a piece of parameterized design software, and the principle is that a visual programming mode is utilized, so that a user can easily call the API of Revit, design a script by himself, and develop corresponding functions according to engineering requirements. The function of Revit can be realized in Dynamo, and the realization mode is more flexible. The construction unit can utilize Dynamo software to introduce concepts such as coordinates, central lines and the like into Revit to assist in modeling of municipal engineering.
According to the method, the rapid parameterization modeling of the BIM model of the municipal engineering project can be realized, good visualization is achieved, and the modeling efficiency and precision are improved.
In another embodiment of the present invention, a basic route map of the BIM parametric modeling method based on Dynamo is shown in fig. 2, and specifically includes:
1. the road plane curve and the road vertical section curve provided by the municipal project construction drawing are respectively divided into N sections, the numerical value of N determines the accuracy of parametric modeling, and the higher the value of N is, the higher the accuracy is.
2. And (3) extracting coordinate values of all end points, namely (X, Y, Z), of the road plane curve and the road longitudinal section curve after being segmented in the step (1) by using Autocad software, and importing the coordinate values into Excel, wherein the coordinate values comprise a first row of X coordinate values, a second row of Y coordinate values and a third row of Z coordinate values.
3. Coordinate points in the Excel file are read by using a Dynamo writing program, and a spatial entity model of all the coordinate points can be generated in Dynamo through the step.
4. And (3) connecting all the points generated in the step (3) into a line in sequence by using a Dynamo writing program again, and generating all the fitted road center lines in Dynamo through the step.
5. According to a municipal project construction drawing, corresponding cross section profiles of roads and bridges are created in Revit, parameter constraint is carried out, and all parameters of the profile family are listed into Excel to form a profile parameter table. The contour must conform to the boolean rule.
6. The positions corresponding to all the cross sections are sorted out in Excel, the number 0 represents a position starting point, the number 1 represents a position end point, and the difference value of the middle point position is calculated to obtain position information.
7. The program written in Dynamo reads the Revit profile family file in step 5 and loads the profile family to the specific point in step 6.
8. The municipal project solid model can be generated once again by Dynamo programming, driving the cross-sectional profile of step 7 to scan along the centerline of step 4.
9. When a hole is required to be opened or a hollow model is required to be established, a corresponding hole opening or hollow part model is required to be established according to the steps 1-8, then Dynamo programming is utilized, and Boolean operation is carried out on the models in the steps 8 and 9, so that a BIM model which is consistent with the reality can be generated.
10. When the coordinate point location parameters need to be modified, only the corresponding Excel coordinate table in the step 2 needs to be modified; when the cross section profile parameters are needed, the parameters corresponding to the step 5 are only needed to be modified, and then the Dynamo program is used for reading the parameters in the Excel table, so that the BIM model can be parameterized and rapidly adjusted.
11. And finally, importing the built BIM model into Revit by utilizing Dynamo programming.
The step numbers in this embodiment do not represent a strict step execution order, for example, step 5 may be executed at any step position after step 1 and before step 7. On the basis of the above embodiment, the present embodiment is improved as follows:
(1) when a hole needs to be drilled or a hollow model needs to be established, determining a part needing to be drilled or the hollow model is established as a target body; then obtaining the entity model of the target body according to the previous steps 1-8; and finally, performing Boolean operation on the entity model of the road or the bridge and the entity model of the target body to generate a corresponding BIM model of the road or the bridge.
(2) When the position coordinate information of the member of the road or the bridge needs to be modified, modifying the coordinate position information of the corresponding member in the road or the bridge in the EXCEL, reading the parameters in the EXCEL table through the Dynamo program, and realizing the parameterization and rapid adjustment of the solid model or the BIM model of the road or the bridge.
(3) When the cross section profile parameter information of the member of the road or the bridge needs to be modified, modifying the cross section profile parameter information of the corresponding member in the road or the bridge in the EXCEL, reading the parameters in the EXCEL table through the Dynamo program, and realizing the parameterization and rapid adjustment of the solid model or the BIM model of the road or the bridge.
The BIM parametric modeling method and device based on Dynamo can realize the controllability of the component, particularly can realize the readability and the alterability of the position and the cross section profile parameters of the component, are digital information models in the true sense, and provide great convenience and possibility for the extraction of the engineering quantity, the calculation and the analysis of stress and the like in the deep design of subsequent municipal projects.
Based on the same technical concept, the invention also discloses a BIM parameterized modeling device based on Dynamo, and the specific embodiment is shown in fig. 3 and comprises the following steps:
the construction and division module 10 is used for dividing the road or bridge provided by the project construction drawing into components; specifically, for example, the road is divided into M sections, each section is a member, and the greater the M value is, the higher the modeling accuracy is.
An information extraction module 20, configured to extract, from the project construction drawing, position coordinate information and cross-sectional profile parameter information of a component of the road or bridge into an EXCEL table; the cross section profile parameter information of the position information of the component is extracted into an EXCEL table, so that subsequent reading, calling and modification are facilitated, and the efficiency of parametric modeling is improved.
The model generation module 30 is configured to read position coordinate information of all members of the road or the bridge in the EXCEL table by using a Dynamo writing program, and generate a spatial entity model of all coordinate points;
the fitting module 40 is used for sequentially connecting the coordinate points of all the components into a line to obtain the center line of the fitted road or bridge;
the position conversion module 50 is used for converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table; for example, a reference position starting point of the road or the bridge is set to be represented by 0, and a reference position ending point of the road or the bridge is set to be represented by 1; specifically, the position conversion module is mainly used for performing position conversion, the total length of the road or the bridge marked in the drawing is regarded as 1, and the position information of each member of the road or the bridge with the total length of 1 is calculated in an equal proportion according to the total length of the road or the bridge and the position information of each member.
An information loading module 60, configured to read the cross-sectional profile parameter information in the EXCEL table by using the Dynamo writing program, and load the cross-sectional profile parameter information into a reference position point of a corresponding component;
the model generating module 30 is further configured to drive, through the Dynamo writing program, the cross-sectional profile loaded by the information loading module to scan along the center line fitted by the fitting module, so as to obtain the solid model corresponding to the road or the bridge.
The rapid parameterization modeling of the BIM model of the municipal engineering project can be realized, good visualization is achieved, and the modeling efficiency and precision are improved. In addition, the parameterized modeling device is adopted for modeling, the operation is simple, modeling personnel can complete the establishment of the BIM model of the municipal engineering project only by the graph recognition capability and the Excel summary statistical capability, and the threshold of the application of the BIM modeling technology is reduced.
In another embodiment of the apparatus of the present invention, as shown in fig. 4, on the basis of the above apparatus embodiment, the building and dividing module 10 includes:
the road division submodule 11 is used for dividing a road plane curve and a road vertical section curve provided by the project construction drawing into N sections respectively; each segment serves as a member of the road. Specifically, a road plane curve and a road vertical section curve provided by a municipal project construction drawing are respectively divided into N sections, the numerical value of N determines the accuracy of parametric modeling, and the higher the value of N is, the higher the accuracy is.
Preferably, the information extraction module 20 specifically includes:
the coordinate extraction submodule 21 is configured to extract three-dimensional coordinate values of all end points of the segmented road surface curve and road longitudinal section curve by using mapping software, and introduce the three-dimensional coordinate values into the EXCEL table; for example, the coordinate values of all end points after the road plane curve and the road vertical section curve are divided, namely (X, Y, Z), are extracted by using Autocad software, and the coordinate values are imported into Excel, namely, the first row of X coordinate values, the second row of Y coordinate values and the third row of Z coordinate values.
The section profile extraction submodule 22 is used for creating corresponding cross section profiles of roads and bridges in Revit according to the project construction drawing and carrying out parameter constraint; and then listing all the cross section profile parameters of the road and the bridge into the EXCEL table to form a cross section profile parameter table. Namely, according to a municipal project construction drawing, corresponding cross section profiles of roads and bridges are created in Revit, parameter constraint is carried out, and all parameters of the profile family are listed into Excel to form a profile parameter table. The contour must conform to the boolean rule.
In another embodiment of the parametric modeling apparatus according to the present invention, based on any one of the above embodiments of the apparatus, the apparatus further includes:
and the target determining module is used for determining the part needing to be drilled or the hollow model is built as a target body when the hole drilling or the hollow model building is needed.
After the target body is determined, the target body can be subjected to component division through the construction and division module in the embodiment, and then the position information and the cross section profile parameters of each component of the target body are extracted from the construction drawing by the information extraction module to an EXCEL table; then, a model generation module reads all constructed position coordinate information of the target in the EXCEL table to generate a space entity model of all coordinate points; the fitting module sequentially connects the coordinate points of all the components of the target body to form a line, and obtains the center line of the fitted target body; the position conversion module converts reference position information of all member cross sections of the target body according to the position information corresponding to all the member cross sections of the target body in the EXCEL table; the information loading module reads the cross section profile parameter information of each component of the target body in the EXCEL table and loads the cross section profile parameter information into the corresponding constructed reference position coordinate point; finally, the cross section profile loaded by the information loading module is driven by the model generation module to scan along the central line fitted by the fitting module, so that the entity model of the target body is obtained; and finally, performing Boolean operation on the entity model of the road or the bridge and the entity model of the target body to generate a corresponding BIM model of the road or the bridge.
In this embodiment, the cross-sectional profile parameters of each component must conform to the boolean operation rule, and thus, by performing boolean operation on each obtained entity model, a BIM model that conforms to reality can be obtained.
In addition, in the parametric modeling device, the position coordinate information and the cross section profile parameter information of each component are extracted and stored into the EXCEL table, and when the coordinate or profile parameter needs to be modified subsequently, the coordinate information or the cross section profile parameter information of the corresponding component only needs to be modified in the EXCEL table, so that the parametric modeling device is convenient and quick, and the difficulty and the complexity of model modification are greatly reduced.
Based on the same technical concept, the present invention further discloses a computer-readable storage medium, and specifically, the computer-readable storage medium of this embodiment includes a stored computer program, where when the computer program runs, the computer-readable storage medium is controlled by a device to execute the Dynamo-based BIM parameterized modeling method according to any of the above method embodiments.
For example, a computer program stored in a computer-readable storage medium of this embodiment, where the computer program, when running, controls an apparatus in which the computer-readable storage medium is located to execute the following method steps:
s1, dividing the road or bridge provided by the project construction drawing into components;
s2, extracting the position coordinate information and the cross section profile parameter information of the road or bridge member from the project construction drawing into an EXCEL table;
s3, reading the position coordinate information of all the members of the road or the bridge in the EXCEL table by adopting a Dynamo writing program, and generating a space entity model of all coordinate points;
s4, sequentially connecting all coordinate points in the step S3 into a line through the Dynamo writing program to obtain a fitted center line of the road or the bridge;
s5, converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table;
s6, reading the cross section profile parameter information in the EXCEL table by adopting the Dynamo writing program, and loading the cross section profile parameter information into the reference position points of the corresponding components;
and S7, driving the cross section profile in the step S6 to scan along the center line in the step S4 through the Dynamo writing program, and acquiring a solid model of the corresponding road or bridge.
Similarly, the present invention also discloses an intelligent terminal device, specifically, the intelligent terminal device of this embodiment includes: a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor; the processor is connected with the memory; the processor, when executing the computer program, implements the Dynamo-based BIM parametric modeling method steps of any of the method embodiments described above.
The Dynamo-based BIM parameterized modeling method corresponds to the Dynamo-based BIM parameterized modeling device, the computer-readable storage medium and the intelligent terminal equipment, and the technical concept is basically consistent; technical details of the embodiments of the Dynamo-based BIM parametric modeling method of the present invention are also applicable to the embodiments of the Dynamo-based BIM parametric modeling apparatus, the computer-readable storage medium, and the terminal intelligent device of the present invention, and are not described again for reducing repetition.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A BIM parameterization modeling method based on Dynamo is characterized by comprising the following steps:
s1, dividing the road or bridge provided by the project construction drawing into components;
s2, extracting the position coordinate information and the cross section profile parameter information of the road or bridge member from the project construction drawing into an EXCEL table;
s3, reading the position coordinate information of all the members of the road or the bridge in the EXCEL table by adopting a Dynamo writing program, and generating a space entity model of all coordinate points;
s4, sequentially connecting all coordinate points in the step S3 into a line through the Dynamo writing program to obtain a fitted center line of the road or the bridge;
s5, converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table;
s6, reading the cross section profile parameter information in the EXCEL table by adopting the Dynamo writing program, and loading the cross section profile parameter information into the reference position points of the corresponding components;
and S7, driving the cross section profile in the step S6 to scan along the center line in the step S4 through the Dynamo writing program, and acquiring a solid model of the corresponding road or bridge.
2. A BIM parameterization modeling method based on Dynamo is characterized by further comprising the following steps:
s81, when a hole needs to be opened or a hollow model needs to be established, determining a part needing to be opened or the hollow model needs to be established as a target body;
s82, obtaining the entity model of the object according to the steps S1-S7;
and S83, performing Boolean operation on the entity model of the road or the bridge and the entity model of the target body to generate a BIM model of the corresponding road or the bridge.
3. The Dynamo-based BIM parametric modeling method as recited in claim 1, wherein said step S1 specifically comprises:
s11, dividing the road plane curve and the road vertical section curve provided by the project construction drawing into N sections respectively; each segment serves as a member of the road.
4. The Dynamo-based BIM parametric modeling method as recited in claim 2, wherein said step S2 specifically comprises:
s21, extracting three-dimensional coordinate values of all end points of the divided plane curve and road longitudinal section curve of the road by using drawing software, and importing the three-dimensional coordinate values into the EXCEL table;
s22, creating corresponding cross section profiles of roads and bridges in Revit according to the project construction drawing, and performing parameter constraint; and then listing all the cross section profile parameters of the road and the bridge into the EXCEL table to form a cross section profile parameter table.
5. The Dynamo-based BIM parametric modeling method according to any one of claims 1 to 4, further comprising:
s91, when the position coordinate information of the road or bridge member needs to be modified, modifying the coordinate position information of the corresponding member in the road or bridge in the EXCEL, and reading the parameters in the EXCEL table through the Dynamo program to realize parameterization and rapid adjustment of the solid model or BIM model of the road or bridge;
and S92, when the cross section profile parameter information of the road or bridge member needs to be modified, modifying the cross section profile parameter information of the corresponding member in the road or bridge in the EXCEL, reading the parameters in the EXCEL table through the Dynamo program, and realizing the parameterization and rapid adjustment of the solid model or BIM model of the road or bridge.
6. A Dynamo-based BIM parametric modeling device, comprising:
the construction dividing module is used for dividing the road or the bridge provided by the project construction drawing into components;
the information extraction module is used for extracting the position coordinate information and the cross section profile parameter information of the road or bridge member from the project construction drawing into an EXCEL table;
the model generation module is used for reading the position coordinate information of all members of the roads or bridges in the EXCEL table by adopting a Dynamo writing program and generating a space entity model of all coordinate points;
the fitting module is used for sequentially connecting the coordinate points of all the components into a line to obtain the center line of the fitted road or bridge;
the position conversion module is used for converting and acquiring reference position information of all member cross sections of the road or the bridge according to the position information corresponding to all the member cross sections of the road or the bridge in the EXCEL table;
the information loading module is used for reading the cross section profile parameter information in the EXCEL table by adopting the Dynamo compiling program and loading the cross section profile parameter information into the reference position point of the corresponding component;
and the model generation module is also used for driving the cross section profile loaded by the information loading module to scan along the center line fitted by the fitting module through the Dynamo compiling program to obtain the entity model corresponding to the road or the bridge.
7. The Dynamo-based BIM parametric modeling apparatus according to claim 6, wherein the construction partitioning module comprises:
the road division submodule is used for dividing a road plane curve and a road vertical section curve provided by the project construction drawing into N sections respectively; each segment serves as a member of the road.
8. The Dynamo-based BIM parametric modeling device as recited in claim 7, wherein the information extraction module specifically comprises:
the coordinate extraction submodule is used for extracting three-dimensional coordinate values of all end points of the segmented plane curve and the segmented road longitudinal section curve of the road by using drawing software and importing the three-dimensional coordinate values into the EXCEL table;
the section contour extraction submodule is used for creating corresponding cross section contours of roads and bridges in Revit according to the project construction drawing and carrying out parameter constraint; and then listing all the cross section profile parameters of the road and the bridge into the EXCEL table to form a cross section profile parameter table.
9. A computer-readable storage medium, comprising a stored computer program, wherein the computer-readable storage medium, when being executed, controls an apparatus in which the computer-readable storage medium is located to execute the steps of the Dynamo-based BIM parametric modeling method according to any one of claims 1 to 6.
10. An intelligent terminal device, comprising: a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor; the processor is connected with the memory; the processor, when executing the computer program, implements the Dynamo-based BIM parametric modeling method steps of any of claims 1 to 6.
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