CN116126809A - Building information model data storage conversion method based on national standard - Google Patents
Building information model data storage conversion method based on national standard Download PDFInfo
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Abstract
The invention discloses a national standard-based building information model data storage and conversion method, which relates to the technical field of engineering industry and comprises the following steps: constructing a shared parameter file of a model, setting parameter groups and parameter types, selecting all categories, and binding parameter information; obtaining all three-dimensional views in the model, and deriving the model; defining geometric information, non-geometric information and attribute information, and deriving the information after definition; the stored geometric information is entered into a file. The building information model data storage conversion method based on national standards provided by the invention realizes screening of information data by means of designing information construction information, equipment operation and maintenance information classification and the like, each type of participants select data to view according to actual demands, data redundancy is avoided, the foundation of large data technology application in projects is facilitated, intelligent building is realized in engineering industry, and accumulation of single component level BIM data is the foundation of urban level CIM data.
Description
Technical Field
The invention relates to the technical field of engineering industry, in particular to a national standard-based building information model data storage and conversion method.
Background
The BIM technology is used as an informatization means for the strong promotion of engineering industry, has the initial effect in solving the aspects of engineering visualization, inter-specialty collaboration and work scheduling, and the visual roaming technology of BIM lightweight engines and models solves the problem that two-dimensional drawings of the traditional engineering industry are difficult to understand and not intuitive, and the BIM three-dimensional modeling software is used for realizing the collision detection and the clear height analysis of the spatial position relationship among different specialty models, so that the prior control before engineering implementation is realized, the change of the engineering implementation process is reduced, the risk that the drawing is not aligned to the later building is reduced, and the pre-arrangement of engineering management is realized through unit progress simulation and investment cost control. BIM+ technical field is widened gradually, and BIM technique combines with oblique photography, 3D printing, GIS technique, realizes that existing building is building, tear open and change the garden level city level CIM model of full coverage of building.
Along with the gradual maturation of application scenes of BIM technology, BIM technology standardized files applicable to markets are urgently needed. The method is used for standardizing the application of the building information model technology in the industry, classifying and coding standards and information delivery standards of the building information model, standardizing the process of information transmission among all participants and inside the participants, and providing guidelines for the establishment and delivery of the model in the engineering design process. The information coding standard divides the building information into 15 classification tables, classifies the building information into 15 classification tables according to building functions, building forms, space functions, space forms, building components, construction projects, construction stages, work activities, professional fields, building products, organization roles, tools, information, materials and attributes, provides systematic reference for informatization coding of engineering, and further standardizes the identification means of the building components. The delivery standard realizes diversification of model application scenes by differentiation of information bearing degrees of models with different precision, and realizes intelligent checking and digital filing of projects by using an expansion method of basic attributes.
The building model information standard classifies and codes the systems such as the structure, the components, the attributes and the like of the model, and the building is coded according to functions and forms, so that elements, work results, project stages, behaviors, professional fields, building products, organization roles and tool information attribute materials are orderly coded, and the whole life cycle information exchange sharing is standardized. However, the display of BIM models and the transfer between platforms are mainly used, and the storage, conversion and transfer of model information data are difficulties in the application process of BIM technology in combination with engineering service characteristics and engineering service requirements. The engineering industry process is divided into a decision-making stage, an implementation stage and an operation and maintenance stage, wherein the implementation stage comprises a construction stage and a completion delivery stage of a design stage, the information flow of the traditional engineering implementation process is not smooth, the information loss phenomenon in the process is serious, and the information flow and the gradual perfection of the three-stage construction process are achieved by utilizing a BIM information technology. Meanwhile, more engineering participants are involved in the construction process, professional engineering is complex, communication modes of different professions and different participants are original, unified system platforms and whole process result integration software are lacked, and transmission and circulation of data and flow among businesses in the construction process are realized. The core of BIM technology is the storage and organization of building information, and the combination of the BIM technology and database technology can help the engineering industry solve the dilemma of information circulation. In the current building implementation process, most models are not matched with actual construction sites, building components are taken as implementation units, component splitting of the models is achieved, and the twin relation between the digital models and the entity buildings is guaranteed to be key to BIM data splitting. Meanwhile, building information classification coding standards have begun to be put into practice, and few practices are currently combined with model coding standards in the BIM application market.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above-described problems.
Therefore, the technical problems solved by the invention are as follows: how to solve the problem of less practice in the current BIM application market combined with model coding standards.
In order to solve the technical problems, the invention provides the following technical scheme: a building information model data storage conversion method based on national standards comprises the following steps:
constructing a shared parameter file of a model, setting parameter groups and parameter types, selecting all categories, and binding parameter information;
obtaining all three-dimensional views in the model, and deriving the model;
defining geometric information, non-geometric information and attribute information, and deriving the information after definition;
the stored geometric information is entered into a file.
As a preferred scheme of the national standard-based building information model data storage conversion method of the present invention, the setting parameter grouping and parameter types include:
the parameter format is text format, and the parameter packet is DTdata packet;
the binding parameter information includes using the revit modeling software to correspond the defined encoding parameters to each component within the modeling software.
As a preferable scheme of the national standard-based building information model data storage conversion method, the method for acquiring all three-dimensional views in the model comprises the following steps:
judging the number of the three-dimensional views, if no three-dimensional view exists, creating a three-dimensional view in the model, traversing the model view type, selecting the view type of the ThreeDimensional, acquiring the view Id of the type, creating the three-dimensional view, and setting the three-dimensional view as the current active view;
the deriving model comprises determining model deriving fineness according to the use requirement of the later model, and customizing a model deriving path and a derived file name.
As a preferred scheme of the national standard-based building information model data storage and conversion method, the geometric information comprises:
the data structure of the geometric information comprises basic information, model scenes, scene nodes, node grids, node positions, binary data, buffer area indexes of vector scalar, abstract data sources, materials, textures and images, and the geometric information is composed of a geometric information index file, a position coordinate binary file and a material map file after being exported;
the non-geometric information comprises model file names, project information, floor lists, space area information, categories, types and instances, and the non-geometric information is exported in a JSON file.
As a preferred scheme of the national standard-based building information model data storage conversion method of the present invention, the deriving the information after the definition includes:
obtaining corresponding entity class information of the attribute, and using an Export method to refer to Newtonsft.Json.dll and serialize the entity class information.
As a preferred scheme of the national standard-based building information model data storage conversion method of the present invention, the defining geometric information includes:
reading a registry table to determine the material storage path information of a system, defining a scene and nodes, defining the face reduction degree of model information in a view correlation method, acquiring the instance information and the type information of the current attribute in an attribute correlation method, acquiring the material name, environment reflection, diffuse reflection and transparency data of the material in a material correlation method, traversing an attribute set to acquire the material storage path, acquiring vertex, UV coordinates and index information in a geometry correlation method, and finally writing the stored geometry information into a file.
As a preferred scheme of the national standard-based building information model data storage conversion method of the present invention, the defining non-geometric information includes:
matching the type of the revit component with the type in the coded information, and automatically judging the similarity between the name of the component type and the name in the coded information by comparing;
when the category names of the components in the modeling software are all the same as the names in the coding information, the codes corresponding to the names of the coding information are obtained, the matched names and codes are stored in a local directory after the modeling software is installed, the file is read through a plug-in unit, and the coding information of the components is assigned;
when the category names of the components in the modeling software are partially matched with the name professional information in the coding information, a partial matching information base is created, data cleaning is carried out, cleaned data are matched again after error data are removed, if the names are all the same, the coding information of the components is assigned according to the cleaned data, if the names are still partially matched, the cleaned data are compared with the information in the information base, and the assignment is carried out after modification according to the information in the information base;
when the category names of the components in the modeling software are different from the name professional information and the category information in the coding information, manually checking the information, if the manual checking results are still different, manually confirming the category and then assigning the coding information of the components, and recording the manually assigned construction information into a database of a local catalog.
As a preferred scheme of the national standard-based building information model data storage conversion method of the present invention, the attribute information includes:
the first-level node information is professional information, the second-level node information is category information, and the third-level node information is type information;
each level of node information comprises attribute names, attribute ID information and coding information, the attribute names and the attribute ID information are judged in double and compared with the coding information, and after the information is confirmed to be accurate, the first level of node information, the second level of node information and the third level of node information are generated in sequence;
the second-level node information and the third-level node information automatically read XML files to obtain attribute information according to different model precision in the table, if no mark label exists in the node information, the node information indicates that the precision does not need the attribute, if a hollow triangle label exists in the node information, the node information indicates that the precision is optional, if a solid triangle label in the node information indicates that the model precision must contain the attribute, finally, component attribute information is generated and divided into Rvt attribute, classification attribute and LOD attribute, and the format is JSON file;
if the geometric point-line-plane information of the model is needed, the geometric information is exported to a separate class and is distinguished and exported from the non-geometric information;
and if the geometric point-line-plane information is not needed, after the determination is completed, the model information is distinguished and extracted into different classifications according to the data structure.
A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method as described above when executing the computer program.
A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method as described above.
The invention has the beneficial effects that: the building information model data storage conversion method based on national standards provided by the invention realizes BIM model information redundancy, solves the dilemma that the information quantity of a revit model is large but the application is difficult, realizes classification of model data through separation of geometric information and attribute information, and realizes classification display application of multi-category information by forming model entities by using MESH data of a geometric information definition model and parameters of an attribute information definition component.
The binding of geometric information and attribute information is realized through the parameters of GUID and elementid, the problem that model data is separated from a revit environment and applied to a web end is solved, the separation and combination of data are realized, the classification coding parameters are utilized, the national standard classification coding standard is referenced, the combination of the model and the national standard is realized, the possibility is provided for the expansion application of the later-stage service, the BIM data based on the national standard building model classification coding standard is helpful for realizing the connection of the model and the practice in the traditional construction process, the realization of an autonomous format is facilitated, and the method is the basis for realizing independent intellectual property rights of engineering software.
Component-level BIM data based on building model classification coding standards is beneficial to project implementation and data management in operation and maintenance processes, double delivery of engineering project data assets and entity buildings is formed through addition, supplement and update of engineering data, equipment parameters and construction process information in the process, engineering mess such as construction process data loss, post-completion supplementary data and the like is improved, and application in engineering project management is beneficial to operation and maintenance management after project completion, so that overhaul risks caused by improper use of equipment are reduced, and risks of large loss due to data loss are reduced.
The method has the advantages that the cross-platform transmission of the model is realized through the recording and viewing of project component-level BIM data, the service development is facilitated, the screening of information data is realized through the modes of designing information construction information, equipment operation and maintenance information classification and the like, all types of participants select data viewing according to actual demands, the data redundancy and mess are avoided, the foundation of large data technology application in projects is facilitated, the intelligent construction is facilitated in the engineering industry, the accumulation of single component-level BIM data is the foundation of urban-level CIM data, the regional-level and urban-level safety management and early warning monitoring are realized through the analysis statistics of BIM data, the risk of manually inputting data is reduced, the application of error data in practice is avoided, and the risk of unordered and complicated data or data loss is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is an overall flowchart of a building information model data storage and conversion method based on national standards according to a first embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
While the embodiments of the present invention have been illustrated and described in detail in the drawings, the cross-sectional view of the device structure is not to scale in the general sense for ease of illustration, and the drawings are merely exemplary and should not be construed as limiting the scope of the invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Also in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper, lower, inner and outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first, second, or third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected, and coupled" should be construed broadly in this disclosure unless otherwise specifically indicated and defined, such as: can be fixed connection, detachable connection or integral connection; it may also be a mechanical connection, an electrical connection, or a direct connection, or may be indirectly connected through an intermediate medium, or may be a communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1, for one embodiment of the present invention, there is provided a method for storing and converting building information model data based on national standards, including:
constructing a shared parameter file of a model, setting parameter groups and parameter types, selecting all categories, and binding parameter information;
the setting of the parameter group and the parameter type comprises: the parameter format is text format, and the parameter packet is DTdata packet; binding parameter information includes using the revit modeling software to correspond the defined coding parameters to each component within the modeling software.
Obtaining all three-dimensional views in the model, and deriving the model;
defining geometric information, non-geometric information and attribute information, and deriving the information after definition;
acquiring all three-dimensional views within the model includes: judging the number of the three-dimensional views, if no three-dimensional view exists, creating a three-dimensional view in the model, traversing the model view type, selecting the view type of the ThreeDimensional, acquiring the view Id of the type, creating the three-dimensional view, and setting the three-dimensional view as the current active view;
according to the use requirement of the later model, dragging the sliding bar, determining the model to export fineness, the smaller the numerical value is, the faster the model exporting speed is, the model fineness is lower, the numerical value is larger, the model exporting fineness is higher, the model exporting speed is lower, the model exporting path and the exported file name are customized, the model fineness is a numerical value between 1 and 15, the default setting is 8, when the model fineness exceeds 8, the model fineness is improved, but the slower the model exporting speed is, when the model fineness is lower than 8, the model fineness is lower, and the exporting speed is high.
The precision attribute information is defined as a first precision when the fineness is 1-3, a second precision when the fineness is 4-6, a third precision when the fineness is 7-9, a fourth precision when the fineness is 10-12, and a fifth precision when the fineness is 13-15.
The geometric information includes: the data structure of the geometric information comprises basic information, model scenes, scene nodes, node grids, node positions, binary data, buffer area indexes of vector scalar, abstract data sources, materials, textures and images, and the geometric information is composed of a geometric information index file, a position coordinate binary file and a material map file after being exported;
the non-geometric information comprises model file names, project information, floor lists, space region information, categories, types and instances, and the non-geometric information is exported in a JSON file.
Deriving the information after definition includes: defining a bid-winning attribute of a floor entity class; defining a floor ID attribute and a boundingbox attribute in the space class; defining ID and name attributes in a category class; defining an attribute family name in an instance type class, traversing derived attributes in a revit, acquiring corresponding entity class information of the attributes, and using an Export derivation method to refer to newtonsft.json.dll and serializing the entity class information.
The method comprises the steps of reading local registry information, finding an installation path of modeling software, determining system material storage path information, defining a scene and nodes, setting fineness of a model view, obtaining instance information and type information of a current element, obtaining all elements with the types being model types, recording the names of the instance elements, the names of the type elements and the names of host elements, obtaining geometric information of the elements, obtaining a solid entity, traversing a solid surface, obtaining an edge array, traversing an edge line array, obtaining vertexes, storing a designated set, removing repeated points through an algorithm, obtaining material names, environmental reflection, diffuse reflection and transparency data of materials through a material correlation method, traversing a ssetProperty to obtain a material storage path, obtaining vertexes, UV coordinates and index information through a geometric information correlation method, obtaining a vertex set of the current mesh, realizing coordinate system conversion of points through recorded transformation information, traversing the point coordinates, UV coordinates and vertexes, and finally writing the stored geometric information into a file.
Defining non-geometric information includes: matching the type of the revit component with the type in the coded information, and automatically judging the similarity between the name of the component type and the name in the coded information by comparing;
when the category names of the components in the modeling software are all the same as the names in the coding information, the codes corresponding to the names of the coding information are obtained, the matched names and codes are stored in a local directory after the modeling software is installed, the file is read through a plug-in unit, and the coding information of the components is assigned;
when the category names of the components in the modeling software are partially matched with the name professional information in the coding information, a partial matching information base is created, data cleaning is carried out, cleaned data are matched again after error data are removed, if the names are all the same, the coding information of the components is assigned according to the cleaned data, if the names are still partially matched, the cleaned data are compared with the information in the information base, and the assignment is carried out after modification according to the information in the information base;
when the category names of the components in the modeling software are different from the name professional information and the category information in the coding information, manually checking the information, if the manual checking results are still different, manually confirming the category and then assigning the coding information of the components, and recording the manually assigned construction information into a database of a local catalog.
The attribute information includes: the first-level node information is professional information, the second-level node information is category information, and the third-level node information is type information; each level of node information comprises attribute names, attribute ID information and coding information, the attribute names and the attribute ID information are judged in double and compared with the coding information, and after the information is confirmed to be accurate, the first level of node information, the second level of node information and the third level of node information are generated in sequence;
as shown in table 1, the second-level node information and the third-level node information automatically read the XML file to obtain attribute information according to the difference of model precision in the table, if no label mark in the node information indicates that the precision does not need the attribute, if a hollow triangle mark in the node information indicates the optional precision attribute, if a solid triangle mark in the node information indicates the attribute which the model precision must contain, the attribute information of the component is finally generated and divided into Rvt attribute, classification attribute and LOD attribute, and the format is JSON file.
Rvt attributes are defined attributes in the modeling process of modeling software, classification attributes are attribute information carried by the attribution category of the component, and LOD attributes are attributes added to the component by users according to different model finesses.
If the geometric point-line-plane information of the model is needed, the geometric information is exported to a separate class and is distinguished and exported from the non-geometric information; if the geometric point-line-plane information is not needed, after the determination is completed, the model information is distinguished and extracted into different classifications according to the data structure, and the stored geometric information is input into a file.
Example 2
An embodiment of the present invention, which is different from the previous embodiment, is that:
the functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random AccessMemory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Example 3
For one embodiment of the invention, a national standard-based building information model data storage and conversion method is provided, and in order to verify the beneficial effects of the invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.
As shown in table 1, the second-level node information and the third-level node information automatically read the XML file to obtain attribute information according to the difference of model precision in the table, if no label mark in the node information indicates that the precision does not need the attribute, if a hollow triangle mark in the node information indicates the optional precision attribute, if a solid triangle mark in the node information indicates the attribute which the model precision must contain, the attribute information of the component is finally generated and divided into Rvt attribute, classification attribute and LOD attribute, and the format is JSON file.
Table 1 definition table of different precision attribute information
Table 1 definition table for different precision attribute information
Table 1 definition table for different precision attribute information
As shown in tables 2 to 3, in the storage conversion test performed according to the method of the present invention, the simulation test was performed 10 times according to the conventional method and the method of the present invention, respectively, the conventional method did not perform the definition of the attribute information, the method of the present invention defined the precision attribute information as the first precision when the fineness is 1 to 3, the precision attribute information as the second precision when the fineness is 4 to 6, the precision attribute information as the third precision when the fineness is 7 to 9, the precision attribute information as the fourth precision when the fineness is 10 to 12, the precision attribute information as the fifth precision when the fineness is 13 to 15, and as seen from the test results of tables 2 to 3, the conversion was performed after the division according to the model precision, the improvement of the method of the present invention by the simulation test was remarkable in terms of the conversion frame rate, and the classification according to the precision was performed while reducing the conversion time, and the model conversion time was shorter when the fineness was 1 to 8 compared with the conventional method.
Table 2 conversion load time vs. table
Table 3 conversion frame rate vs. table
In this embodiment, a specific use experiment is performed on the method of the present invention, and in a preset equivalent experimental environment, 3 groups of experiments are performed on the existing conventional method and the method of the present embodiment, where specific experimental results are shown in tables 4 and 5.
Table 4 store conversion time consumption comparison table
Table 5 stores a conversion accuracy comparison table
The comparison experiment can confirm that the method provided by the invention has the advantages that the time consumption of storage and conversion is reduced, the speed is obviously improved, the efficiency of storage and conversion operation is obviously improved compared with the prior art, and the time consumption is reduced; meanwhile, the method has real-time performance and greatly reduces the error rate.
In actual use, the method meets the actual production operation requirement, solves the dilemma that the information quantity of the revit model is large but the application is difficult, realizes the classification of model data through the separation of geometric information and attribute information, and realizes the classification display application of multi-category information by forming model entities and defining parameters of components by the geometric information and the MESH data of the model.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. The building information model data storage conversion method based on national standard is characterized by comprising the following steps:
constructing a shared parameter file of a model, setting parameter groups and parameter types, selecting all categories, and binding parameter information;
obtaining all three-dimensional views in the model, and deriving the model;
defining geometric information, non-geometric information and attribute information, and deriving the information after definition;
the stored geometric information is entered into a file.
2. The national standard based building information model data storage conversion method of claim 1, wherein the setting parameter group and parameter type comprises:
the parameter format is text format, and the parameter packet is DTdata packet;
the binding parameter information includes using the revit modeling software to correspond the defined encoding parameters to each component within the modeling software.
3. A method for converting national standard based building information model data storage as claimed in claim 1 or 2, wherein said obtaining all three-dimensional views in the model comprises:
judging the number of the three-dimensional views, if no three-dimensional view exists, creating a three-dimensional view in the model, traversing the model view type, selecting the view type of the ThreeDimensional, acquiring the view Id of the type, creating the three-dimensional view, and setting the three-dimensional view as the current active view;
the deriving model comprises determining model deriving fineness according to the use requirement of the later model, and customizing a model deriving path and a derived file name.
4. A national standard based building information model data storage conversion method as claimed in claim 3, wherein the geometric information comprises:
the data structure of the geometric information comprises basic information, model scenes, scene nodes, node grids, node positions, binary data, buffer area indexes of vector scalar, abstract data sources, materials, textures and images, and the geometric information is composed of a geometric information index file, a position coordinate binary file and a material map file after being exported;
the non-geometric information comprises model file names, project information, floor lists, space area information, categories, types and instances, and the non-geometric information is exported in a JSON file.
5. The method for data storage and conversion of national standard based building information model as claimed in claim 4, wherein said deriving said information after definition comprises:
obtaining corresponding entity class information of the attribute, and using an Export method to refer to Newtonsft.Json.dll and serialize the entity class information.
6. The method for data storage and conversion of national standard based building information model as claimed in claim 5, wherein the defining geometrical information comprises:
reading a registry table to determine the material storage path information of a system, defining a scene and nodes, defining the face reduction degree of model information in a view correlation method, acquiring the instance information and the type information of the current attribute in an attribute correlation method, acquiring the material name, environment reflection, diffuse reflection and transparency data of the material in a material correlation method, traversing an attribute set to acquire the material storage path, acquiring vertex, UV coordinates and index information in a geometry correlation method, and finally writing the stored geometry information into a file.
7. The method for data storage and conversion of national standard based building information model as claimed in claim 6, wherein defining the non-geometric information comprises:
matching the type of the revit component with the type in the coded information, and automatically judging the similarity between the name of the component type and the name in the coded information by comparing;
when the category names of the components in the modeling software are all the same as the names in the coding information, the codes corresponding to the names of the coding information are obtained, the matched names and codes are stored in a local directory after the modeling software is installed, the file is read through a plug-in unit, and the coding information of the components is assigned;
when the category names of the components in the modeling software are partially matched with the name professional information in the coding information, a partial matching information base is created, data cleaning is carried out, cleaned data are matched again after error data are removed, if the names are all the same, the coding information of the components is assigned according to the cleaned data, if the names are still partially matched, the cleaned data are compared with the information in the information base, and the assignment is carried out after modification according to the information in the information base;
when the category names of the components in the modeling software are different from the name professional information and the category information in the coding information, manually checking the information, if the manual checking results are still different, manually confirming the category and then assigning the coding information of the components, and recording the manually assigned construction information into a database of a local catalog.
8. The national standard based building information model data storage conversion method of claim 7, wherein the attribute information comprises:
the first-level node information is professional information, the second-level node information is category information, and the third-level node information is type information;
each level of node information comprises attribute names, attribute ID information and coding information, the attribute names and the attribute ID information are judged in double and compared with the coding information, and after the information is confirmed to be accurate, the first level of node information, the second level of node information and the third level of node information are generated in sequence;
the second-level node information and the third-level node information automatically read XML files to obtain attribute information according to different model precision in the table, if no mark label exists in the node information, the node information indicates that the precision does not need the attribute, if a hollow triangle label exists in the node information, the node information indicates that the precision is optional, if a solid triangle label in the node information indicates that the model precision must contain the attribute, finally, component attribute information is generated and divided into Rvt attribute, classification attribute and LOD attribute, and the format is JSON file;
if the geometric point-line-plane information of the model is needed, the geometric information is exported to a separate class and is distinguished and exported from the non-geometric information;
and if the geometric point-line-plane information is not needed, after the determination is completed, the model information is distinguished and extracted into different classifications according to the data structure.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 8 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 8.
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