CN112748919B - BIM technology-based visual programming modeling method and device - Google Patents
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Abstract
The invention discloses a visual programming modeling method and a visual programming modeling device based on a BIM (building information modeling) technology, wherein the visual programming modeling method comprises the following steps: establishing parameters for the variable information according to the design elements, and automatically generating a parameter element table; setting input conditions of the model, establishing a corresponding structural model, associating parameters with the model through a formula, and setting rules for the model; deploying the custom attribute packages into a database, and setting different specialized attribute packages according to different types of structures; endowing a parameterized model with a corresponding attribute package, packaging the model into a template, and setting input conditions, parameter variables and attribute variables; establishing a project assembly model file, building a resource table, mapping the parameter element table and the model template to the resource table, programming an automatic instantiation program, automatically calling parameters in the parameter element table to a corresponding model, and generating a model of a corresponding position. The invention realizes the visualization, parameterization and automatic programming modeling of the BIM model in the field of infrastructure and the self-defined expansion function of the attribute.
Description
Technical Field
The invention relates to the technical field of expansion application of BIM in the field of highways, in particular to a visual programming modeling method and device based on BIM technology.
Background
In the highway industry, the BIM technology simulates real information of a structure through digital information, and the BIM technology is applied on the basis of a three-dimensional model. Therefore, how to quickly and efficiently establish the three-dimensional BIM model is a basic guarantee for realizing BIM application. At present, many scholars make relevant researches on a BIM modeling method, and Zheng Yang and the like (thought and method of highway engineering full-line bridge modeling, bridge engineering, 9 th year 2019, 149-; the method and the system preliminarily realize the automatic modeling of the model by a parameterization and assembly design method in the flood and martial arts and so on (CN 201510047670-BIM-based highway parameterization automatic modeling method and system); the invention discloses a bridge three-dimensional design method by utilizing the idea of skeleton lines (CN 201510374884-a bridge three-dimensional design method based on BIM technology); wangchen et al (CN 201610752703-a method for modeling and designing BIM model of overhead structure) realized an easily modifiable BIM model generation method of overhead structure based on the route.
It can be seen that the existing methods still have many disadvantages, which are as follows: 1. a complete three-dimensional model solution can be realized only by the cooperative work of a plurality of pieces of software; 2. the attribute of the model is fixed, the professional customization of the attribute is insufficient, and the self-definition and expansion of the attribute are difficult; 3. the existing method has the defects of insufficient automation, incapability of realizing visual programming, insufficient modeling efficiency and difficult change.
Disclosure of Invention
The invention aims to solve the technical problem of providing a BIM technology-based high-visualization, parameterization and automation programming modeling method and device, realizing the custom expansion of attributes and the automatic attribute addition function, and finally realizing a visualization programming modeling method capable of quickly establishing a BIM model in the field of infrastructure; the defects that the combination of the current BIM modeling software is difficult, the model attribute is difficult to customize and expand, the modeling automation degree is insufficient and the like are overcome.
In order to solve the technical problems, the invention adopts the following technical scheme:
a visual programming modeling method based on BIM technology comprises the following steps:
s1: establishing parameters for the variable information according to the design elements of the highway engineering structure, and automatically generating a corresponding parameter element table;
s2: setting input conditions of the model, establishing a corresponding structural model, and associating parameters with the model through a formula to form a parameterized model; meanwhile, setting rules for the model;
s3: according to the information granularity requirement, deploying a custom attribute package into a database to complete product custom attribute expansion, and setting different specialized attribute packages according to different types of structures;
s4: endowing the established parameterized model with corresponding attribute packages, packaging the model into a model template, and setting input conditions, parameter variables and attribute variables corresponding to the parameter element table;
s5: establishing a project assembly model file, building a resource table, mapping the parameter element table and the model template to the resource table, programming an automatic instantiation program, automatically calling parameters in the parameter element table to a corresponding model, automatically generating a model at a corresponding position according to the number of set rules, input conditions, parameters and attribute information, and automatically filling corresponding information in a model attribute column; and the generated model is still correlated with the parameter element table.
As a further improvement of the present invention, in S1, the design elements of the road engineering structure are: parameters associated with the model that affect structural morphology, size, color, spatial location, number, attributes during the modeling process, excluding names, inherent attributes, and custom additional attributes.
Further, in S1, automatically generating a corresponding parameter element table as follows: and automatically collecting and automatically generating a form which can be directly called subsequently according to a set template by establishing the design parameters of the model.
Further, in S2, the input conditions of the model are: in the example project assembly file, the reference condition for accurately positioning the project can be used as the highest parent level in the model, and all the subsequent steps are subsets of the input conditions.
Further, in S2, setting rules for the model, for implementing triggering the rule to run through a specific operation, and checking whether the feature created in the component meets the requirement through the rules; the specific operation comprises model form selection, input condition selection and/or parameter conversion.
Further, in S3, the deploying the custom property bag to the database specifically includes:
s31: accessing the model database by using the identity of an administrator and inquiring the model attribute module;
s32: selecting a parent program package according to the relationship of the parent and child program packages, and adding a specialized program package name;
s33: carrying out attribute expansion on the object type of the created specialized program package or the object type of the parent program package;
s34: adding a corresponding attribute list under the created attribute expansion set, wherein the attribute list comprises an attribute name and an attribute type;
s35: and deploying the completed extension program package, downloading the extended deployment file, and replacing the original deployment file package of the modeling client with the deployment file to complete attribute extension.
Further, in S4, the model template has recognizable input conditions, distributable parameters, attachable resource set names and example graph function requirements, and has attribute distribution function.
Further, in S5, the resource table is a configuration file for invoking the parameter element table and the model template, and the invoking is performed by a visual programming program, and includes:
s51: entering a visual programming program module;
s52: entering an operation guide, selecting a model template to be instantiated and a corresponding parameter element table, and determining a mapping relation between parameters and attributes of the parameter element table and the model template;
s53: selecting a preset expansion attribute packet which needs to be added correspondingly according to the type of the instantiated model, and adding a plurality of expansion attribute packets to the same model, wherein one expansion attribute packet comprises a plurality of attribute columns;
s54: entering a three-dimensional parameter design interface, selecting a model instantiation position, an input condition and an instance number in a three-dimensional visualization mode, and adding a rule program needing to be added;
s55: calling the parameter element table and the model template, starting model instantiation, and displaying the number of models to be instantiated and the number of currently instantiated models on an interface; after the model instantiation is finished, entering a model parameterized design selection interface again;
s56: selecting whether the model is further deepened or not, and if not, finishing the intelligent visual programming modeling process; if so, further generating a reference surface for the model, further splitting the model, and finishing the intelligent visual programming modeling process.
Further, in S56, the reference plane may be automatically generated according to the input condition, and the reference plane is automatically hidden after the model is determined to be split.
The invention also provides a visual programming modeling device based on the BIM technology, which comprises: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the visualization programming modeling method based on the BIM technique described above.
By adopting the technical scheme, the invention at least has the following advantages:
1. by applying the visual programming modeling method based on the BIM technology, the customized expansion of the model attribute is realized based on the technology of deploying the customized attribute package to the model database at the bottom layer under the same modeling platform. According to the method for customizing the extended attribute package in a specialized manner, a plurality of feature attributes are deployed in the same package, so that the corresponding specialized attribute package can be conveniently selected according to needs in the modeling process, and the extended attributes can be automatically appended through rules in the visual programming process.
2. The method for modeling by utilizing visual programming is matched with the deepening function of the model, so that the modeling efficiency is greatly improved, the modeling automation is improved, the synchronous visual function is realized, the expression is visual, and the use and problem finding of designers are facilitated.
3. By applying the modeling method based on the parameter element table, the generated model is still associated with the parameter element table, parameters in the parameter table are modified, and the model is adjusted according to the corresponding mapping parameters, so that the model is convenient to modify, change and maintain.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic flow chart of a visual programming modeling method based on BIM technology according to the present invention;
FIG. 2 is a schematic diagram of a custom property expansion;
FIG. 3 is a schematic diagram of a custom expansion relationship between a package and an object type to which the package belongs;
FIG. 4 is a schematic diagram illustrating a flow of use of a visual programming interface.
Detailed Description
The present invention is described in further detail below with reference to exemplary bridge examples and embodiments. 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 will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 provides a visual programming modeling method based on a BIM technology, and the basic idea is as follows: and accessing semantic information and geometric information attribute packages of the BIM data, and deploying the custom attribute packages to the model database. A plurality of characteristic attributes are deployed in the same package through a mode of specializing, customizing and expanding the attribute packages, and corresponding professional attribute packages are convenient to select according to needs in a modeling process. And calling the configured parameter element table and model template by using a visualization program, automatically instantiating the model by matching with rules, and automatically segmenting the model according to the reference surface. Finally, for the model which is well implemented, the model can be automatically corrected by modifying the parameters in the parameter element table, and the model changing efficiency is improved.
As shown in fig. 1, a visual programming modeling method based on the BIM technology using a small box girder as an embodiment of a bridge superstructure is as follows:
s1: according to the design elements of the highway engineering structure, parameters are established for variable information (such as the information of size, gradient, angle, volume and the like which can be changed), and a corresponding parameter element table is automatically generated; the design elements of the highway engineering structure refer to parameters which are related to the model and influence the structural form, size, color, spatial position, quantity and attribute in the modeling process, and do not comprise name, inherent attribute and custom additional attribute. The automatic generation of the corresponding parameter element table refers to the automatic collection and automatic generation of a subsequent form which can be directly called according to a set template by establishing the design parameters of the model.
Specific to this example are:
and establishing geometric design parameters, rule parameters and attribute parameters associated with the geometric dimensions and characteristics of the design model according to the design elements, automatically generating corresponding parameter element list headers, and finishing the input of parameter contents of each row according to design requirements. The classification, name and type of the parameters of the small box girder in the embodiment are shown in table 1. The geometric parameters are used for controlling the size and structural form of the model, the rule parameters are used for controlling the color, spatial position, number and the like of the model, and the attribute parameters are used for controlling the attribute of the model and are subsequently associated with the extended attribute through rules.
TABLE 1 parameters of the small box girder model
S2: setting input conditions of the model, establishing a corresponding structural model, and associating parameters with the model through a formula to form a parameterized model so as to fulfill the aim of parameterization of the component; meanwhile, rules are set for the model to realize that the running of the rules is triggered through specific operations, and whether the characteristics created in the component meet the requirements or not is checked through the rules. The input conditions of the model refer to reference conditions for accurately positioning the project in the example project assembly file, and generally serve as the highest parent level in the model, and all the subsequent steps are subsets of the input conditions. The set model rule refers to a trigger for a condition such as model form selection, input condition selection, model component feature check, parameter conversion, and the like. The rules can be triggered through parameters, the reusability of the model can be improved by utilizing the rules, and the rationality of the model can be automatically judged according to the rules. It should be noted that too many rule sets may affect the instantiation efficiency of the model.
Specific to this example are:
and setting input conditions of the small box girder model, wherein the input conditions are a road center line and a road starting point, and controlling the design position of the model through starting and ending point position parameters. Establishing a small box girder structure model, and associating parameters with the model through a formula to achieve the purpose of parameterization of the component; meanwhile, rules are set for the small box girder model, so that the rules are triggered to run through specific operations. The example controls the color, space positioning, quantity and the like of the small box girder through rules, realizes the mapping of attribute parameters and model expansion attributes by using the rules, and checks whether the characteristics created in the part meet the requirements or not by using set control conditions in the process of generating the model.
S3: and deploying the custom attribute package into a database according to the information granularity requirement to finish the product custom attribute expansion. And configuring a specialized property package according to the characteristics of the upper structure small box girder, and deploying the customized specialized property package to the database, wherein the flow is shown in FIG. 2. The method comprises the following specific steps:
s31: accessing the model database by using the identity of an administrator and inquiring the model attribute module;
s32: selecting a parent program package according to the relationship of the parent and child program packages, and adding a specialized program package name;
s33: carrying out attribute expansion on the created specialized program package, wherein the Type of a parent-level package can be selected, and the Type of the current specialized package can also be selected for carrying out attribute expansion;
s34: and adding a corresponding attribute list under the created attribute expansion set, wherein the attribute list comprises an attribute name and an attribute type. Attribute types include, but are not limited to, string, integer, boolean, date, real, volume, area, length, angle, percentage, and the like. For the present example, the attribute types mainly include a String (String), a Length (Length), a Real number (Real), a Rate (Rate), and a Gravity (Gravity). The attributes to be included in the specialized attribute package of the upper-structure small box girder are shown in table 2, and the name of the attribute is English in consideration of programming compatibility;
TABLE 2 example Small case Beam extended Property Table
S35: and deploying the completed extension program package, downloading the extended deployment file, and replacing the original deployment file package of the modeling client with the deployment file to complete attribute extension.
Wherein Type is the object Type, and geometric element (point-line face) is essential Type, and the characteristic is also essential Type, and the object Type all has two essential features: certain attributes are attached and certain function methods are supported. The user can define the Type by self and give a certain extension set, which is called a Specialization Package (Specialization Package); correspondingly, the system native packet is called the OOTB Package; after the custom Package is deployed to a database, the custom Package is called a delivery Package; because of this inheritance relationship, a certain extension of the user-specialized package definition can be chosen to act on the Type object to which it belongs under the parent package (i.e., parent package), and the overall relationship is as shown in FIG. 3.
S4: and giving a corresponding attribute package to the established small box girder parameterized model, packaging the model into a model template, and setting input conditions, parameter variables corresponding to the parameter element table and attribute variables. The trabecular model template has the functional requirements of recognizable input conditions, distributable parameters, attachable resource set names, example graphs and the like. And the model template has the attribute publishing function, so that the aim of calling the parameter element list and automatically filling the attribute bar by using the rule is fulfilled in the visual programming modeling process of S5.
S5: establishing a small box girder project general assembly model file of the embodiment, building a resource table, mapping a small box girder parameter element table and a model template to the resource table, programming an automatic instantiation program, automatically calling parameters in the parameter element table to a corresponding model, automatically generating a small box girder model at a corresponding position according to the quantity of set rules, input conditions, parameters and attribute information, and automatically filling corresponding information in a model attribute column to achieve the purpose of visual programming modeling. As shown in fig. 4, the following is specifically explained:
s51: after configuring the resource table, entering a visual programming module;
s52: entering an operation guide, selecting a small box girder model template to be instantiated and a corresponding parameter element table, and determining the mapping relation between parameters and attributes of the parameter element table and the model template;
s53: selecting an expansion attribute package of the upper structure small box girder preset in the step S3, wherein expansion attributes contained in the expansion attribute package are shown in a table 2;
s54: entering a three-dimensional parameter design interface, selecting a road center line and a road starting point as input conditions under the condition that a small box girder model template is instantiated into a small box girder project assembly model file of an embodiment in the selection of the three-dimensional interface, selecting the number of small box girders to be instantiated, calling rules for controlling the color, the space positioning and the number of the small box girders, and setting a mapping rule of attribute parameters and model expansion attributes (adding a rule program required to be added).
S55: calling the small box girder parameter element table and the model template, starting model instantiation, and displaying the number of models to be instantiated and the number of currently instantiated models on an interface. After the model instantiation is finished, entering a model parameterized design selection interface again;
s56: selecting whether the model is further deepened or not, and if the small box girder does not need to be further split, selecting whether the intelligent visual programming modeling process is completed or not; if the model needs to be further processed deeply, the selection is that a reference surface is further generated for the generated small box girder instantiation model, the model is further split, and the intelligent visual programming modeling process is completed. The reference surface generation can be divided according to distance and proportion according to input conditions, the reference surface is automatically generated by inputting information such as quantity, angle and the like, and the reference surface is automatically hidden after the model is confirmed to be split.
The generated model is still correlated with the parameter element table, the corresponding parameters are modified, and the position parameters corresponding to the parameter element table mapped by the parameters are also synchronously changed. Similarly, if the model needs to be further adjusted and modified in the later stage, the model can be modified only by modifying the corresponding parameter value of the corresponding beam piece in the parameter element table and updating the model without changing the structural form.
The embodiment also provides a visual programming modeling device based on the BIM technology, which is characterized by comprising: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the visualization programming modeling method based on the BIM technique described above. Since the hardware part of the device belongs to the conventional technology in the field, the description is not provided herein.
In conclusion, based on the BIM technology, the invention realizes high visualization, parameterization and automatic programming modeling, realizes the custom expansion of the attributes and the automatic attribute addition function, and finally realizes the visualization programming modeling method capable of quickly establishing the BIM model in the field of infrastructure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (9)
1. A visual programming modeling method based on BIM technology is characterized by comprising the following steps:
s1: establishing parameters for the variable information according to the design elements of the highway engineering structure, and automatically generating a corresponding parameter element table;
s2: setting input conditions of the model, establishing a corresponding structural model, and associating parameters with the model through a formula to form a parameterized model; meanwhile, setting rules for the model;
s3: according to the information granularity requirement, deploying a custom attribute package into a database to complete product custom attribute expansion, and setting different specialized attribute packages according to different types of structures;
in S3, deploying the custom property bag to the database specifically includes:
s31: accessing the model database by using the identity of an administrator and inquiring the model attribute module;
s32: selecting a parent program package according to the relationship of the parent and child program packages, and adding a specialized program package name;
s33: carrying out attribute expansion on the object type of the created specialized program package or the object type of the parent program package;
s34: adding a corresponding attribute list under the created attribute expansion set, wherein the attribute list comprises an attribute name and an attribute type;
s35: deploying the completed expansion program package, downloading the expanded deployment file, replacing the original deployment file package of the modeling client with the deployment file, and completing attribute expansion;
s4: endowing the established parameterized model with corresponding attribute packages, packaging the model into a model template, and setting input conditions, parameter variables and attribute variables corresponding to the parameter element table;
s5: establishing a project assembly model file, building a resource table, mapping the parameter element table and the model template to the resource table, programming an automatic instantiation program, automatically calling parameters in the parameter element table to a corresponding model, automatically generating a model at a corresponding position according to the number of set rules, input conditions, parameters and attribute information, and automatically filling corresponding information in a model attribute column; and the generated model is still correlated with the parameter element table.
2. The BIM technology-based visual programming modeling method according to claim 1, wherein in S1, the road engineering structure design elements are: parameters associated with the model that affect structural morphology, size, color, spatial location, number, attributes during the modeling process, do not include names, inherent attributes, and custom additional attributes.
3. The visual programming modeling method based on BIM technique as claimed in claim 1, wherein in said S1, the corresponding parameter element table is automatically generated as follows: and automatically collecting and automatically generating a form which can be directly called subsequently according to a set template by establishing the design parameters of the model.
4. A visual programming modeling method based on BIM technique as claimed in claim 1, wherein in S2, the input conditions of the model are: in the example project assembly file, the reference condition for accurately positioning the project can be used as the highest parent level in the model, and all the subsequent steps are subsets of the input conditions.
5. A visual programming modeling method based on the BIM technology as claimed in claim 1, wherein in S2, rules are set for the model for implementing triggering of the rules by specific operations, and whether the features created in the component satisfy the requirements is checked by the rules; the specific operation comprises model form selection, input condition selection and/or parameter conversion.
6. The BIM-technology-based visual programming modeling method of claim 1, wherein in S4, the model template has recognizable input conditions, distributable parameters, attachable resource set names and example graph function requirements, and has attribute distribution function.
7. The BIM-technology-based visual programming modeling method of any one of claims 1 to 6, wherein in the S5, the resource table is a configuration file for invoking the parameter element table and the model template, and the invoking is performed by a visual programming program, which includes:
s51: entering a visual programming program module;
s52: entering an operation guide, selecting a model template to be instantiated and a corresponding parameter element table, and determining a mapping relation between parameters and attributes of the parameter element table and the model template;
s53: selecting a preset expansion attribute packet which needs to be added correspondingly according to the type of the instantiated model, and adding a plurality of expansion attribute packets to the same model, wherein one expansion attribute packet comprises a plurality of attribute columns;
s54: entering a three-dimensional parameter design interface, selecting a model instantiation position, an input condition and an instance number in a three-dimensional visualization mode, and adding a rule program needing to be added;
s55: calling the parameter element table and the model template, starting model instantiation, and displaying the number of models to be instantiated and the number of currently instantiated models on an interface; after the model instantiation is finished, entering a model parameterized design selection interface again;
s56: selecting whether the model is further deepened or not, and if not, finishing the intelligent visual programming modeling process; if so, further generating a reference surface for the model, further splitting the model, and finishing the intelligent visual programming modeling process.
8. The BIM-technology-based visual programming modeling method of claim 7, wherein in S56, the reference plane is automatically generated according to the input conditions, and the reference plane is automatically hidden after the model is disassembled.
9. A visual programming modeling device based on BIM technology is characterized by comprising:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the BIM technique-based visual programming modeling method of any of claims 1 to 8.
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