CN116992547B - Three-dimensional building modeling method and system - Google Patents
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- CN116992547B CN116992547B CN202311237346.9A CN202311237346A CN116992547B CN 116992547 B CN116992547 B CN 116992547B CN 202311237346 A CN202311237346 A CN 202311237346A CN 116992547 B CN116992547 B CN 116992547B
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- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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Abstract
The invention relates to the technical field of computer aided design, and provides a three-dimensional building modeling method and a system, wherein the three-dimensional building modeling method comprises the following steps: s1, acquiring a plan: reading a building planning scheme from a database, and extracting building planning data from the building planning scheme; s2, generating parameters: obtaining a parameter form of the building component according to the building planning data by utilizing the parameter generation rule; s3, generating a component: generating a three-dimensional model of the building element according to the parameter form by using the generated model; s4, structural verification; s5, mechanical verification. According to the method, the three-dimensional model of the building component is generated, and the structural verification for the three-dimensional model and the mechanical verification for the building design are assisted to ensure the rationality of the design result, so that the labor cost in the building design process can be effectively reduced, the working efficiency is effectively improved, and the time consumption of the progress of the building design project is greatly reduced.
Description
Technical Field
The invention relates to a three-dimensional building modeling method and a system, belongs to the technical field of computer aided design, and particularly belongs to the technical field of computer aided building design related to houses, bridges, gardens, production factories or roads.
Background
For building designs, especially bridge and road related building designs, since there are a large number of existing designs, the design generally does not need to be started from scratch, so at present, a mode of splitting a component, applying a component template to modify the component model into a component model and splicing the component model is mostly adopted, but the mode also needs to consume a great deal of manpower to perform a series of operations such as selecting, modifying parameters, modifying details and the like with lower efficiency on the component template, the labor cost is high, the working efficiency is low, and participants must have enough knowledge of the applicable scene and modifying mode of the component template, which means higher learning cost, so that in practice project progress is often seriously delayed due to careless reworking and the like.
In order to solve the problems, the prior art provides a parameterized generation scheme, such as a parameterized generation type design method for building space disclosed in China patent with the application number of 202211239128.4, and a model is built through the parameterized method, so that intelligent evaluation and self optimization of the building space and the building design can be realized. However, the scheme still needs to select the basic components and the corresponding parameters thereof required by design, and in practice, a great deal of manpower is required to perform operations such as selecting types and modifying parameters with lower efficiency, which is basically, but the process of splicing component models is intelligentized, and compared with the scheme adopted at present, the scheme also has the problems of high manpower cost and low working efficiency, and is generally mainly suitable for the situation of lacking enough history data of the existing scheme.
Disclosure of Invention
In order to solve the technical problems, the invention provides a three-dimensional building modeling method and a system, which can effectively reduce the labor cost in the building design process and effectively improve the working efficiency by generating a three-dimensional model of a building member.
The invention is realized by the following technical scheme.
The invention provides a three-dimensional building modeling method, which comprises the following steps:
s1, acquiring a plan: reading a building planning scheme from a database, and extracting building planning data from the building planning scheme;
s2, generating parameters: obtaining a parameter form of the building component according to the building planning data by utilizing the parameter generation rule; the parameter forms of the building components comprise a component parameter form and a docking parameter form, wherein the component parameter form is a list of structural parameters and mechanical parameters of the building components, and the docking parameter form is a list of structural parameters and mechanical parameters of docking between the building components;
s3, generating a component: generating a three-dimensional model of the building component according to the component parameter form by using the generated model;
s4, structural verification: splicing the three-dimensional models of the building components according to the docking parameter form to obtain an overall three-dimensional model, performing collision detection and smoothness verification on the spliced positions in the overall three-dimensional model, entering the next step if the verification is successful, and backing to the step S3 if the verification is failed;
s5, mechanical verification: and (3) carrying out solid mechanical simulation and stress analysis on the integral three-dimensional model, judging whether the analysis result meets the requirements in the building planning data, if so, successfully verifying and returning to the simulated integral three-dimensional model, and if not, failing to verify and backing to step S3.
And the smoothness verification in the step S4 is to verify the smoothness of the curved surface of the outer surface of the splicing position in the integral three-dimensional model.
In step S4 and step S5, before the verification fails and the step S3 is returned, the method further includes the following steps:
s6, verifying the times: judging the return times of verification failure in the current round of flow, if the return times of verification failure are larger than a preset value, the times of verification failure, exiting and returning error information, if the times of verification failure are smaller than or equal to the preset value, the times of verification is successful and the step S3 is returned;
the preset value is 10-20.
The invention also provides a three-dimensional building modeling system, which comprises a flow controller, wherein the flow controller respectively sends control instructions to a data interface module, a component generation model module and a mechanical simulation system for control, the data interface module is used for realizing the step S1 in the three-dimensional building modeling method, the component generation model module is used for realizing the step S3 in the three-dimensional building modeling method, and the mechanical simulation system is used for realizing the step S5 in the three-dimensional building modeling method; the parameter generation rule module is respectively connected with the data interface and the component generation model module in data, and is used for realizing the step S2 in the three-dimensional building modeling method; and a three-dimensional modeling system is respectively connected with the component generating model module and the mechanical simulation system in data, and the three-dimensional modeling system is used for realizing the step S4 in the three-dimensional building modeling method.
The mechanical simulation system also acquires environmental parameters from the data interface for solid mechanical simulation and returns a simulated integral three-dimensional model through the data interface.
The flow controller is further configured to implement step S6 in the three-dimensional building modeling method as described above.
The invention has the beneficial effects that: the method for generating the three-dimensional model of the building component is assisted with the structural verification of the three-dimensional model and the mechanical verification of the building design to ensure the rationality of the design result, so that the labor cost in the building design process can be effectively reduced, the working efficiency is effectively improved, and the time consumption of the progress of the building design project is greatly reduced.
Drawings
FIG. 1 is a schematic flow diagram of at least one embodiment of the present invention;
fig. 2 is a schematic diagram of a modular connection in accordance with at least one embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
A first embodiment of the present invention relates to a three-dimensional building modeling method as shown in fig. 1, comprising the steps of:
s1, acquiring a plan: reading a building planning scheme from a database, and extracting building planning data from the building planning scheme;
s2, generating parameters: obtaining a parameter form of the building component according to the building planning data by utilizing the parameter generation rule;
s3, generating a component: generating a three-dimensional model of the building element according to the parameter form by using the generated model;
s4, structural verification: splicing the three-dimensional models of the building components according to the parameter form to obtain an overall three-dimensional model, performing collision detection and smoothness verification on the spliced positions in the overall three-dimensional model, entering the next step if the verification is successful, and returning to the step S3 if the verification is failed;
s5, mechanical verification: and (3) carrying out solid mechanical simulation and stress analysis on the integral three-dimensional model, judging whether the analysis result meets the requirements in the building planning data, if so, successfully verifying and returning to the simulated integral three-dimensional model, and if not, failing to verify and backing to step S3.
In general, the building planning scheme has specific specification indexes, which are expressed in numerical forms and in terms of degree words, but are generally defined texts, and the building planning data can be obtained by discretizing the indexes expressed by the degree words based on the existing text extraction technology. For example, for a bridge construction project, the bridge length, framing information, span combination parameters, beam height, pavement layer thickness, center support height, embedding depth and other information can be directly reflected from the construction planning scheme, and the information can be directly separated from the text as construction planning data.
The design parameters are required to meet the requirements of the building planning data, so that the design parameters can be regarded as being always corresponding to the building planning data, and the corresponding parameter generation rules can be obtained and coded based on experience summary. For example, the span combination parameter can be interpreted as the actual length of each span, and the design length parameter and the number of each span component can be obtained by combining the bridge length.
The generated model adopts a text 3D generated model, such as DreamFusion, prolificDreamer, and can be trained by means of the existing historical project data so as to realize targeted three-dimensional model generation. Compared with the integrally generated scheme, the fault tolerance rate can be obviously improved by simply generating the building components, the model training is easier, and the preparation of the training data set is more convenient.
The structure verification mainly detects three-dimensional structure conflicts of the three-dimensional model, which is an obvious problem of checking the generated three-dimensional model, and the adopted collision detection and smoothness verification are all common schemes in the prior art, especially in the field of game development, and are easy to realize and good in effect.
The mechanical verification is performed aiming at the characteristics of the building design on the basis that the three-dimensional model has no problem, and is realized mainly by calling the existing simulation platform.
The second embodiment of the present invention is substantially the same as the first embodiment, and mainly consists of a detailed preferred embodiment, wherein the parameter forms of the building elements include a component parameter form and a docking parameter form, the component parameter form is a list of structural parameters and mechanical parameters of the building elements, and the docking parameter form is a list of structural parameters and mechanical parameters of the docking between the building elements.
Further, the component parameter form is used to generate a three-dimensional model of the building component in step S3.
Further, the docking parameter form is used to splice the three-dimensional model of the building element in step S4.
Further, the smoothness verification in step S4 is to verify the surface smoothness of the outer surface of the spliced position in the whole three-dimensional model.
The third embodiment of the present invention is substantially the same as the first embodiment, and mainly includes the steps of, before step S4 and step S5 fail in verification and return to step S3:
s6, verifying the times: judging the return times of verification failure in the current round of flow, if the return times of verification failure are larger than a preset value, the times of verification failure, exiting and returning error information, if the times of verification failure are smaller than or equal to the preset value, the times of verification is successful and the step S3 is returned;
further, the preset value is 10-20.
Thereby avoiding unnecessary progress effects caused by excessive times. When the number of times of returning the verification failure is too large, it is easy to judge that the reasonable three-dimensional model result cannot be obtained even if the verification fails, so that the three-dimensional model generated in the previous time is adjusted and put into project use by manual intervention and the adjusted three-dimensional model is also used for carrying out supplementary training on the generated model.
A third embodiment of the present invention relates to a three-dimensional building modeling system as shown in fig. 2, including a flow controller, where the flow controller sends control instructions to a data interface module, a component generation model module and a mechanical simulation system, respectively, to control, where the data interface module is used to implement step S1 in the first embodiment or the second embodiment of the present invention, the component generation model module is used to implement step S3 in the first embodiment or the second embodiment of the present invention, and the mechanical simulation system is used to implement step S5 in the first embodiment or the second embodiment of the present invention; the parameter generation rule module is respectively connected with the data interface and the component generation model module in data, and is used for realizing the step S2 in the first embodiment or the second embodiment of the invention; and a three-dimensional modeling system is respectively connected with the component generating model module and the mechanical simulation system in a data mode, wherein the three-dimensional modeling system is used for realizing the step S4 in the first embodiment or the second embodiment of the invention.
Generally, the parameter generation rule module directly executes the parameter generation rule, no control on the flow and time sequence is necessary, meanwhile, the structure verification executed by the three-dimensional modeling system can be directly executed according to the result of the component generation model module, no control on the flow and time sequence is necessary, but the mechanical simulation system needs to call an external existing simulation platform, and process conflict can occur, so that the control on the flow is needed to be performed, smooth execution can be ensured, meanwhile, the component generation model needs to call a database, and the influence of the output time sequence on the three-dimensional modeling system is needed to be considered, so that the flow controller only needs to control the data interface module, the component generation model module and the mechanical simulation system.
Furthermore, the mechanical simulation system also acquires environmental parameters from the data interface for solid mechanical simulation, and returns a simulated integral three-dimensional model through the data interface.
Further, the flow controller is further configured to implement step S6 in the third embodiment of the present invention.
Claims (7)
1. A three-dimensional building modeling method, comprising the steps of:
s1, acquiring a plan: reading a building planning scheme from a database, and extracting building planning data from the building planning scheme;
s2, generating parameters: obtaining a parameter form of the building component according to the building planning data by utilizing the parameter generation rule; the parameter forms of the building components comprise a component parameter form and a docking parameter form, wherein the component parameter form is a list of structural parameters and mechanical parameters of the building components, and the docking parameter form is a list of structural parameters and mechanical parameters of docking between the building components;
s3, generating a component: generating a three-dimensional model of the building component according to the component parameter form by using the generated model;
s4, structural verification: splicing the three-dimensional models of the building components according to the docking parameter form to obtain an overall three-dimensional model, performing collision detection and smoothness verification on the spliced positions in the overall three-dimensional model, entering the next step if the verification is successful, and backing to the step S3 if the verification is failed;
s5, mechanical verification: and (3) carrying out solid mechanical simulation and stress analysis on the integral three-dimensional model, judging whether the analysis result meets the requirements in the building planning data, if so, successfully verifying and returning to the simulated integral three-dimensional model, and if not, failing to verify and backing to step S3.
2. The three-dimensional building modeling method according to claim 1, wherein the smoothness verification in step S4 is to verify the surface smoothness of the outer surface of the splice location in the overall three-dimensional model.
3. The three-dimensional building modeling method according to claim 1, further comprising the steps of, in step S4 and step S5, before the verification fails and the step S3 is rolled back:
s6, verifying the times: judging the return times of verification failure in the current round of flow, if the return times of verification failure are larger than a preset value, the times of verification failure, exiting and returning error information, if the times of verification failure are smaller than or equal to the preset value, the times of verification is successful and the step S3 is returned.
4. The three-dimensional building modeling method according to claim 3, wherein the preset value is 10-20.
5. A three-dimensional building modeling system, characterized by comprising a flow controller, wherein the flow controller respectively sends control instructions to a data interface module, a component generation model module and a mechanical simulation system for control, the data interface module is used for realizing step S1 in the three-dimensional building modeling method according to any one of claims 1-4, the component generation model module is used for realizing step S3 in the three-dimensional building modeling method according to any one of claims 1-4, and the mechanical simulation system is used for realizing step S5 in the three-dimensional building modeling method according to any one of claims 1-4; the parameter generation rule module is respectively connected with the data interface and the component generation model module in a data way, and the parameter generation rule module is used for realizing the step S2 in the three-dimensional building modeling method according to any one of claims 1-4; and the three-dimensional modeling system is respectively connected with the component generation model module and the mechanical simulation system in data, and is used for realizing the step S4 in the three-dimensional building modeling method according to any one of claims 1-4.
6. The three-dimensional building modeling system of claim 5, wherein the mechanical simulation system further obtains environmental parameters from the data interface for performing a solid mechanical simulation and returns a simulated overall three-dimensional model via the data interface.
7. The three-dimensional building modeling system of claim 5, wherein the flow controller is further configured to implement step S6 in the three-dimensional building modeling method of claim 3 or 4.
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