CN117407951A

CN117407951A - BIM model processing method, server and storage medium

Info

Publication number: CN117407951A
Application number: CN202311314288.5A
Authority: CN
Inventors: 魏跃武; 张涛; 张纯
Original assignee: Zhicheng Spacetime Technology Zhejiang Co ltd
Current assignee: Zhicheng Spacetime Technology Zhejiang Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-01-16

Abstract

The application relates to the field of building model data processing, in particular to a BIM model processing method, a server and a storage medium; the method comprises the steps of obtaining an IFC file corresponding to a BIM model; extracting attribute information and entity relations corresponding to each entity object in the IFC file; converting the attribute information corresponding to the entity object and the entity relation by using a conversion tool to generate a corresponding GLB file; and collecting GLB files corresponding to the entity objects, and storing the GLB files into a preset GLB model library. The method can be used for rapidly loading and displaying on a relevant platform, and can solve the problems of slow loading of BIM model files, stuck rendering of a three-dimensional visualization engine and the like.

Description

BIM model processing method, server and storage medium

Technical Field

The present application relates to the field of building model data processing, and in particular, to a BIM model processing method, a server, and a storage medium.

Background

BIM (Building Information Modeling, building information model) is widely used in operation management, and is a building model built based on various relevant information data of a building engineering project. The real information of the building is simulated through digital information simulation. BIM is an integrated flow constructed based on project information from design, construction to operation coordination, and has the characteristics of visualization, coordination, simulation, optimality and diagrammability 5. By using BIM, construction companies can innovate, design and draw unified information in the whole process, and can communicate better through authenticity simulation and building visualization, so that project parties can know project basic information such as construction period, site real-time conditions, cost, environmental influence and the like.

BIM model file format data can be unified into an IFC (Industry Foundation Class, industrial basic class) file according to building information model classification and coding standard (with the number of GB/T51269-2017). IFC files are an open, neutral file format that describes the construction of physical entities such as buildings, infrastructure, and plant equipment. This file format is an international standard (ISO 16739:2013) intended to facilitate data exchange and collaboration during construction, construction and operation. The BIM model can realize transmission and storage through an IFC file format; however, in the IFC file, any entity (such as IFC Beam and IFC Wall) describes its own information through attributes, and because of the triangle network structure, the complex entity object, the rich colors and the variety of materials, the data size of the attribute description is extremely large, so that the loading and displaying of the model on the relevant platform are very slow, even there is a compatibility problem, and the display precision is low or the display cannot be performed.

Disclosure of Invention

In order to solve the above problems, the present application provides a BIM model processing method, a server, and a storage medium.

In a first aspect, the method for processing a BIM model provided in the present application adopts the following technical scheme:

a BIM model processing method, comprising:

acquiring an IFC file corresponding to the BIM;

extracting attribute information IFCPropertyDefinitions and entity relation IFCReleationshift corresponding to each entity object IFCObjectDefinitions in the IFC file;

converting the attribute information IFCPropertyDefinitions and the entity relationship IFCReleationshift corresponding to the entity object IFCObjectDefinitions by using a conversion tool IFCConvert to generate a corresponding GLB file; the GLB file comprises GLB model data and model relative position attributes;

and collecting the GLB files corresponding to the entity objects IFCObjectdefinition, and storing the GLB files into a preset GLB model library.

By adopting the technical scheme, the IFC file is split and analyzed to extract the relevant attributes (attribute information IFCPropertyDefinion and entity relation IFCReleationshift) of each entity object (namely one or more building components such as a door, a window, a floor, a wall and the like), and the entity objects are used as targets to be converted into GLB files, so that independent encapsulation of the entity objects is realized, and a corresponding GLB monomerization model is obtained; based on the light weight characteristic of the GLB monomer model, the BIM model file can be rapidly loaded and displayed on a relevant platform, and the problems of slow loading, rendering and blocking of a three-dimensional visualization engine and the like can be solved; meanwhile, the three-dimensional scene has clear layers, more vivid and strong sense of reality and more immersion sense.

Optionally, the converting the attribute information IFCPropertyDefinition corresponding to the entity object IFCObjectDefinition and the entity relationship ifcrelanoship by using the conversion tool IFCConvert includes:

generating a conversion task, wherein the conversion task carries at least one attribute information IFCPropertyDefinitions and an entity relationship IFCReleationshift corresponding to the entity object IFCObjectDefinitions;

distributing the conversion task to a target computing node, so that the target computing node executes the conversion task, and converting the attribute information IFCPropertyDefinitions and the entity relationship IFCReleationshift corresponding to the entity object IFCObjectDefinitions by using a conversion tool IFCConvert to generate corresponding GLB files;

and receiving a task execution result fed back by the target computing node aiming at the conversion task to obtain a GLB file corresponding to the entity object IFCObjectdefinition.

By adopting the technical scheme, decoupling of tasks and computing resources is realized, and the task distribution strategy is flexible to change; meanwhile, each computing node in the distributed network is utilized, so that the high-efficiency processing of the conversion task can be realized; in addition, the system has stronger expansibility (the computing nodes can be flexibly deployed, and the actual demands can be better met) and fault tolerance (if the conversion task of one computing node fails to execute, the conversion task can be distributed to other computing nodes for processing).

Optionally, the receiving a task execution result fed back by the target computing node for the conversion task to obtain a GLB file corresponding to the entity object IFCObjectDefinition includes:

receiving a task execution result fed back by the target computing node aiming at the conversion task, and analyzing the task execution result to obtain a file storage path;

and accessing the file storage path to obtain the GLB file corresponding to the entity object IFCObjectDefinitions.

By adopting the technical scheme, the calculation node stores the converted GLB file to the relevant position, the task execution result is fed back in the form of a file storage path, the data volume of the message packet is small, and the analysis efficiency and the communication stability of the two parties to the message packet are improved.

Optionally, the task execution result further includes: GLB model identification ID, transition time spent, transition status identification code; wherein the conversion state identification code comprises a first identification code corresponding to a conversion success state and a second identification code corresponding to a conversion failure state;

the BIM model processing method further comprises the following steps:

acquiring an entity identification ID corresponding to the entity object IFCObjectdefinition;

and storing the entity identification ID corresponding to the entity object IFCObjectdefinition and the GLB model identification ID in the preset GLB model library in a correlated way.

Optionally, the attribute information IFCPropertyDefinition includes: at least one of three-dimensional model elements, structural elements, materials, textures, specifications, light effects and animations.

Optionally, the BIM model processing method further includes:

and acquiring a GIS three-dimensional map scene as a base map, and loading and superposing GLB models corresponding to the GLB files into the GIS three-dimensional map scene to realize real space simulation display of the BIM models.

Optionally, the loading and overlaying the GLB model corresponding to each GLB file into the GIS three-dimensional map scene includes:

acquiring real geographic space information of a target GLB model; the target GLB model is one model in each GLB file; the real geographic space information represents space-time information of a model displayed in the GIS three-dimensional map scene;

determining the real geographic space information of other GLB models based on the real geographic space information of the target GLB model and the model relative position attribute in other GLB files; the other GLB files comprise GLB files except GLB files corresponding to the target GLB model;

and loading and overlaying each GLB model into the GIS three-dimensional map scene based on the real geographic space information of each GLB model.

Optionally, the real geospatial information includes: longitude, latitude, angle, altitude, and time.

In a second aspect, the server provided in the present application adopts the following technical scheme:

a server comprising a processor, a memory and a computer program stored in the memory and executable on the processor, the processor implementing the above described BIM model processing method when executing the computer program.

In a third aspect, the present application provides a computer readable storage medium, which adopts the following technical scheme:

a computer-readable storage medium storing a computer program; the computer program, when executed by a processor, implements the above-described BIM model processing method.

By adopting the technical scheme, a carrier of a computer program of the BIM model processing method is provided.

In summary, the present application includes at least the following beneficial technical effects:

1. the method can be used for rapidly loading and displaying on a related platform, and can be used for solving the problems of slow loading of BIM model files, stuck rendering of a three-dimensional visualization engine and the like; meanwhile, the three-dimensional scene has clear layers, more vivid and strong sense of reality and more immersion sense.

2. Decoupling of tasks and computing resources is achieved, and task distribution strategies are flexible to change; meanwhile, by utilizing each computing node in the distributed network, the high-efficiency processing of the conversion task can be realized.

Drawings

FIG. 1 is a block flow diagram of a BIM model processing method in an embodiment of the application;

FIG. 2 is a schematic diagram of an example of an IFC file format in an embodiment of the present application;

FIG. 3 is a flow chart of a file format conversion method in an embodiment of the present application;

FIG. 4 is a flow chart of another BIM model processing method in an embodiment of the application;

FIG. 5 is a block diagram of a network architecture of a BIM model processing system in an embodiment of the present application;

FIG. 6 is a block diagram of a BIM model processing device in an embodiment of the present application;

fig. 7 is a block diagram of a server in an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The embodiment of the application discloses a BIM model processing method.

Referring to fig. 1, a BIM model processing method includes the steps of:

s101, acquiring an IFC file corresponding to the BIM model.

The IFC standard is an IAI (International Alliance forlnteroperability, international interoperability union) which defines all data in the expess language for data exchange standards specifically formulated for BIM technology for architectural engineering characteristics.

The IFC file is used to define a unified data format for extensible building information so that interactions between building, engineering and construction software applications in engineering projects can occur when multiple software applications are required to cooperatively complete tasks, with the need for data exchange and sharing between different systems. At this point, the engineering personnel want to be able to import work results (here, engineering data) from one piece of software to another, and this process may be repeated. This is a very complex technical problem if a large number of software systems are involved. The problem is greatly simplified if there is a standard, published data representation and storage method, each software can import and export engineering data in this format. IFCs are such standard, published data representation and storage methods.

IFC files are a plain text file format that can be viewed and edited using a conventional text editor. Referring to FIG. 2, the file starts with "ISO-10303-21" and ENDs with "END-ISO-10303-21" with two parts in between: a file header section and a data section. The file HEADER starts with "HEADER" and ends with "ENDSEC", which contains information about the neutral file itself. Such as file description, IFC standard version used, etc. The DATA segment starts with "DATA" and ends with "ENDSEC"; the solid object information of the BIM model is contained in the BIM model, such as walls, columns, plates, beams, doors, windows and the like.

The generation of the IFC file can be generated by directly editing text, but the editing process is complex; alternatively, modeling can be performed inside the software Revit, or in open source BIM software such as OpenCAD, and then exported as an IFC file.

In an alternative embodiment, the platform or the server may obtain the IFC file corresponding to the BIM model by uploading the IFC file to the receiving terminal.

S102, extracting attribute information IFCPropertyDefinitions and entity relation IFCReleationshift corresponding to each entity object IFCObjectDefinitions in the IFC file.

In alternative embodiments, the IFC file includes IFCObjectDefinitions, IFCPropertyDefinitions, IFCReleationship.

It should be appreciated that IFCObjectDefinition is used to describe the definition of an entity object, such as information about the type of entity object (e.g., IFC Wall, defining the entity object as a "Wall") and an identity unique identifier (e.g., global ID). IFCPropertyDefinition is used to describe characteristics/attributes of an entity object, reflecting specific information of the entity object in a specific project, including but not limited to information of component model elements, materials, specification sizes, and the like. Ifcrelearation shift is used to describe interrelationships between entity objects, including but not limited to positional relationships, connectivity relationships, and the like.

Wherein the attribute information IFCPropertyDefinition may include at least one of a three-dimensional model element, a structural element, a material, a texture, a specification, a light effect, and an animation.

In an alternative embodiment of the present application, the root components may be obtained by querying the objects of the IfcProduct class, where the root components refer to components that have no other components referencing them. Traversing the root member list and recursively acquiring sub-members of each root member. Specifically, for each root component, its subcomponent may be obtained by querying the ifcrelaggroups relationship. The method described above can be used again when traversing the sub-components, with the same operation being performed on each sub-component, so that all levels of sub-components can be obtained. Then, the attribute of each component (i.e., the attribute information IFCPropertyDefinition corresponding to the physical object IFCObjectDefinition) is acquired, for example, the wall width, the column section size, and the like are acquired. And analyzing the relationship (namely the entity relationship IFCReleationshift) among the components, wherein a certain father-son relationship or association relationship exists between each component and other components. Such as the relationship between the wall and the floor on which it is located. Optionally, a tree structure of all the components of the IFC file may be generated, and the global IDs of the components may be cached in a preset IFC component library.

In an alternative embodiment of the present application, any existing suitable parsing tool may be used for parsing and extracting the IFC file, so long as the relevant information of each entity object in the file can be parsed and obtained.

S103, converting the attribute information IFCPropertyDefinitions and the entity relationship IFCReleationshift corresponding to the entity object IFCObjectDefinitions by using a conversion tool IFCConvert to generate a corresponding GLB (GL Transmission Format Binary ) file; the GLB file contains GLB model data and model relative position attributes.

In an alternative embodiment of the present application, the server may implement file format conversion according to the callable conversion tool IFCConvert. However, to better meet the conversion requirement of the large data volume file, a conversion manner is provided to decouple the conversion task from the computing resource, and referring to fig. 3, the method includes:

s301, generating a conversion task; the conversion task carries attribute information IFCPropertyDefinitions and an entity relation IFCReleationshift corresponding to at least one entity object IFCObjectDefinitions;

s302, distributing a conversion task to a target computing node, so that the target computing node executes the conversion task, and converting attribute information IFCPropertyDefinitions and entity relationship IFCReleationshift corresponding to the entity object IFCObjectDefinitions by using a conversion tool IFCConvert to generate corresponding GLB files;

and after the target computing task is executed, feeding back a task execution result to the server. It should be appreciated that the server maintains any existing communication network connection with the computing nodes, including but not limited to mobile communication networks.

It should be appreciated that the target computing node belongs to a computing node that is screened out of the distributed network for performing the conversion task. The screening policy of the target computing node may be any existing method, including but not limited to a polling method, load balancing, etc.

S303, receiving a task execution result fed back by the target computing node aiming at the conversion task, so as to obtain a GLB file corresponding to the entity object IFCObjectdefinition.

In an alternative embodiment of the present application, the task execution result carries the storage path of the GLB file. The server receives a task execution result fed back by the target computing node aiming at the conversion task, and analyzes the task execution result to obtain a file storage path; and the server accesses the file storage path to obtain the GLB file corresponding to the relevant entity object IFCObjectDefinitions.

By adopting the conversion mode, the server builds a neutral task scheduling system, does not need to care about the resource condition of the bottom layer, and only needs to submit the task to a task distribution bus; the resource scheduler does not need to relate to the task details of the upper layer, and only needs to acquire executable tasks from the task distribution bus and allocate computing resources for execution. This abstract scheduling pattern decouples the conversion tasks from the computing resources.

Since the task distribution bus processes the collection and distribution of tasks in a neutral manner, the resource scheduler can select different types or priorities of tasks to execute distribution according to its own scheduling policy. If the task distribution strategy is changed, no change is needed to be made to the task submitting flow, so that the change cost of the system scheduling strategy can be simplified.

Secondly, the task distribution bus conceals the isomerism of the bottom computing resources and provides a unified task submission interface for an upper task submitter. Thus, even though the bottom computing resources come from different heterogeneous systems, the bottom computing resources can be well integrated in the same task distribution platform, and the task is distributed to the proper computing resources for execution through the resource scheduler.

In addition, in the task distribution bus mode, the new computing resources are deployed without affecting the original task submitting flow or the execution of other computing resources on the task, so that the system can be conveniently and efficiently expanded, and has strong expandability.

Finally, when a certain computing resource fails, the task distribution bus can detect the task with failure execution and redistribute the conversion task to other computing nodes to execute the task so as to meet the final completion of the task, and a certain fault tolerance capability is provided for the system.

It should be noted that, in this embodiment, instead of converting the entire IFC file, each entity object is extracted separately, and conversion is performed with the entity object as a target, so as to obtain a monomerized GLB model, so as to implement GLB model encapsulation for a single building member; compared with the IFC file, the converted GLB file can reduce the loading rendering time and improve the loading speed; moreover, control screening can be performed on each GLB model respectively, and the model is more realistic when the model is fused into a three-dimensional scene to perform high-precision simulation display. At present, BIM and three-dimensional scenes are not really fused, only the relative positions are shown, and the fusion effect is poor; or the simple rough splicing scene mode of superposing a three-dimensional scene and loading a BIM model by taking an image map, an electronic map and a CAD drawing as a base map, so that the precision, the fidelity and the precision of the BIM model are directly reduced, and the serious distortion phenomenon exists in the scene corresponding to the restored BIM; there is a split screen rendering of the explicit model demarcating the GIS (Geographic Information System ).

Optionally, the task execution result further includes: GLB model identification ID, transition time spent, transition state identification code. Wherein the transition state identification code includes a first identification code corresponding to a transition success state and a second identification code corresponding to a transition failure state. The server can determine whether the conversion task is successfully executed by analyzing and identifying the conversion state code; when execution fails, the forwarding task may be redistributed.

In an optional embodiment of the present application, the BIM model processing method further includes:

acquiring an entity identification ID corresponding to the entity object IFCObjectdefinition; and storing the entity identification ID corresponding to the entity object IFCObjectdefinition and the GLB model identification ID in a preset GLB model library in a correlated manner. Therefore, the association of the relevant information of the IFC file and the GLB file is realized, the storage and the retrieval of the integral model, the classification model and the physical layering model are supported, and the GIS application can be conveniently and rapidly loaded and the space analysis of the corresponding service is facilitated.

S104, collecting GLB files corresponding to the IFCObjectDefinitions of the entity objects, and storing the GLB files into a preset GLB model library.

By adopting the technical scheme, the relevant attribute of each entity object is extracted by splitting and analyzing the IFC file, the entity object is used as a target, the entity object is converted into the GLB file, the entity object is independently packaged, and a corresponding GLB monomer model is obtained; based on the light weight characteristic of the GLB monomer model, the BIM model file can be rapidly loaded and displayed on a relevant platform, and the problems of slow loading, rendering and blocking of a three-dimensional visualization engine and the like can be solved; meanwhile, the three-dimensional scene has clear layers, more vivid and strong sense of reality and more immersion sense.

After the conversion to obtain the corresponding GLB file, in an alternative embodiment of the present application, referring to fig. 4, the bim model processing method further includes:

s401, acquiring a GIS three-dimensional map scene as a base map;

and S402, loading and stacking GLB models corresponding to the GLB files into a GIS three-dimensional map scene to realize real space simulation display of the BIM models.

Specifically, acquiring real geographic space information of a target GLB model; wherein the target GLB model is one model in each GLB file; the real geographic space information represents space-time information of the model displayed in the GIS three-dimensional map scene.

In this embodiment, the real geospatial information includes: longitude, latitude, angle, altitude, and time. Wherein the angle includes at least one of pitch angle, heading angle, roll angle. Specifically, the device needs to be flexibly arranged according to actual requirements.

Determining the real geographic space information of other GLB models based on the real geographic space information of the target GLB model and the model relative position attribute in other GLB files; the other GLB files include GLB files other than the GLB file corresponding to the target GLB model.

It should be appreciated that after the determination of the real geospatial information of the target GLB model and the model relative location attributes in the other GLB files, the real geospatial information of the other GLB models may be calculated. For example, the model A is associated with the model B, the model B is associated with the model C, and after the real geographic space information of the model A is determined, the real geographic space information of the model B can be obtained by calculation based on the relative position attribute (including but not limited to the relative position relation, the connection relation and the like) between the model B and the model A; after the real geographic space information of the model B is determined, the real geographic space information of the model C can be obtained through calculation based on the relative position attribute between the model C and the model B; and the same is done so that the real geographic space information of all GLB models can be obtained.

And loading and overlaying each GLB model into the GIS three-dimensional map scene based on the real geographic space information of each GLB model. And generating a model GLB format file of standard three-dimensional data based on GIS application by using an IFC standard BIM data format conversion technology, performing accurate visual positioning by using high-precision basic space bottom layer mapping data, and realizing accurate matching positioning by using the real geographic space information of the GLB model and the high-precision coordinate view angle of the GIS three-dimensional map scene, thereby being beneficial to forming true three-dimensional scene fusion.

Referring to fig. 5, an embodiment of the present application further provides a BIM model processing system, which mainly includes:

the server 51 is mainly used for implementing the above BIM model processing method; and an IFC component library 52, a GIS database 53, an engineering materials database 54, a plurality of clients 55, a plurality of computing nodes 56, and a GLB model library 57 communicatively coupled to the server 51.

Wherein, the relevant user can upload the IFC file to the server 51 through the client 55; server 51 stores the relevant IFC components in IFC component library 52 via IFC component disassembly; and generates a conversion task to distribute to the corresponding computing node 56; the computing node 56 performs the conversion task and feeds back the task execution result to the server 51; the server 51 obtains a corresponding GLB model by processing the task execution result; and collecting and sorting the execution results of each task to store each GLB model in the GLB model library 57; the server 51 may also calculate the real geospatial information of other related GLB models based on the real geospatial information of the target GLB model indicated by the client 55, and obtain a GIS three-dimensional map scene from the GIS database 53 as a base map, so as to load and superimpose the related GLB models into the GIS three-dimensional map scene, so as to implement light-weight conversion of the BIM model, and implement high-precision simulation display in the three-dimensional map scene.

In this embodiment, the engineering material database 54 is used to store engineering files. Including engineering project process management control class documents, engineering documents, spreadsheets, engineering technical documents, various image video information, and the like. Planning, approval, contract, design document, construction management document, completion acceptance data and other engineering documents, wherein the data sources comprise owner provision, third party provision and the like so as to meet the requirements of engineering data process management, acceptance delivery, file delivery and subsequent operation maintenance, and the engineering documents comprise engineering original data acquisition and engineering electronic picture file management.

Optionally, the server 51 may further perform file service management according to the relationship between the basic engineering document and the BIM, including: and collecting, archiving and inquiring engineering files. The geographic information result catalog is compiled, the acquisition result is described according to the standard metadata, and a group of information which is ordered and classified according to a certain classification method is searched, positioned and acquired according to the described characteristics. And carrying out multidimensional display in a catalog form according to the types or topics of all resources in the GIS, and providing a resource catalog classified retrieval service for conveniently searching a geographic information system resource service list to obtain service contents required by a business application system.

At present, BIM format files cannot be directly loaded and displayed in GIS application. BIM data are only stored in a database after construction completion, the BIM data are rich in types, data calling of GIS application vectors is not supported, BIM building information cannot be accurately displayed in GIS by visual application, multi-platform and GIS platform switching display can be only used, two-dimensional or white-mode indication can be only used in GIS, technical support of BIM data on service application scenes is not realized, a large number of procedures such as data reconstruction, drawing, mapping and mold turning are needed in the BIM space data extraction process to carry out space information butt joint with a GIS platform, and rapid application of BIM data informatization and digitalization is seriously affected.

Through the BIM model processing system, application of BIM lightweight model conversion in the GIS field can be realized, the current application field relates to the fields of airport three-dimensional scene operation, urban dynamic management, three-dimensional pipe network system maintenance, indoor three-dimensional scene guidance and the like, an integrated three-dimensional scene simulation data management system integrating a designed, constructed and built three-dimensional scene and a geographic information platform is realized, BIM information in any stage or area can be subjected to management conversion and real-time fusion, dynamic building model information in different time and space can be fused into a real three-dimensional real environment, high-precision space-time holographic real scene integration based on intelligent and visual basic enabling management platform can be realized, visual basis is provided for each field, living, intelligent and monitoring precision and practical efficiency based on GIS application types are greatly improved, input cost is reduced, real-time extension of BIM information is realized, BIM dynamic processing is supported, and basic guarantee is provided for GIS foundation platform enrichment scene and intelligent city simulation.

In the embodiment of the application, through the fusion of the GIS and the BIM, the models of civil engineering, internal room layout (wall, door, window, column and the like), decoration, internal traffic channels, facilities, equipment, various pipelines, various marks and all entity objects are provided with the extraction models of related entity objects with high identifiability and the like, wherein the models are similar to the entity objects in performance. And can support spatial information attribute association (house use, equipment specific information, pipeline classification, etc.) for service use.

Through the above BIM model processing system, precise data model extraction and conversion are performed on BIM model (IFC format) data, the BIM internal structure is reserved to be rich, a realistic and high-precision three-dimensional scene model is constructed, structural components such as walls, doors, windows and the ground in standard components are independently extracted to form an IFC component library 52, the IFC is converted into a GLB format, and attributes and the converted GLB format model are associated to generate a GLB model library 57 based on a GIS geographic information system. Based on the Beidou high-precision basic data base diagram, the superposition component GLB model is used for accurately matching the real geographic space information (height, longitude and latitude, coordinates, pitch angle, course angle, roll angle and the like) of the model, and virtual simulation of the fusion of the model and the scene is truly realized.

Based on the same design concept, the embodiment also discloses a BIM model processing device.

Referring to fig. 6, a BIM model processing apparatus includes:

an obtaining module 61, configured to obtain an IFC file corresponding to the BIM model;

an extracting module 62, configured to extract attribute information IFCPropertyDefinition and an entity relationship ifCReleationshift corresponding to each entity object IFCObjectDefinition in the IFC file;

a conversion module 63, configured to convert attribute information IFCPropertyDefinition corresponding to the entity object IFCObjectDefinition and an entity relationship ifcrelionshift by using a conversion tool IFCConvert to generate a corresponding GLB file; the GLB file comprises GLB model data and model relative position attributes;

the processing module 64 is configured to collect the GLB files corresponding to the entity objects IFCObjectDefinition, and store the GLB files in a preset GLB model library.

The BIM model processing device provided in the embodiment of the present application is mainly used for implementing the steps of the above-mentioned BIM model processing method, and various changes and specific examples in the method provided in the above-mentioned embodiment are also applicable to the BIM model processing device of the present embodiment, and by the foregoing detailed description of the BIM model processing method, those skilled in the art can clearly know the implementation method of the BIM model processing device in the present embodiment, which is not described in detail herein for brevity of the specification.

In order to better execute the program of the above method, the embodiment of the present application further provides a server, as shown in fig. 7, which includes a processor 71 and a memory 72.

Wherein the memory 72 may be used to store instructions, programs, code sets, or instruction sets. The memory may include a storage program area and a storage data area, wherein the storage program area may store instructions for implementing an operating system, instructions for at least one function, instructions for implementing the BIM model processing method provided in the above embodiment, and the like; the storage data area may store data and the like involved in the BIM model processing method provided in the above embodiment.

Processor 71 may include one or more processing cores. The processor performs the various functions of the present application and processes the data by executing or executing instructions, programs, code sets, or instruction sets stored in memory, calling data stored in memory. The processor may be at least one of an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device, DSPD), a programmable logic device (Programmable Logic Device, PLD), a field programmable gate array (Field Programmable Gate Array, FPGA), a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic device for implementing the above-mentioned processor function may be other for different servers, and the embodiments of the present application are not specifically limited.

Embodiments of the present application provide a computer-readable storage medium, for example, comprising: a U-disk, a removable hard disk, a Read Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes. The computer readable storage medium stores a computer program that can be loaded by a processor and execute the BIM model processing method of the above embodiment.

The foregoing embodiments are only used for describing the technical solution of the present application in detail, but the descriptions of the foregoing embodiments are only used for helping to understand the method and the core idea of the present application, and should not be construed as limiting the present application. Variations or alternatives that are readily contemplated by those skilled in the art within the scope of the present disclosure are intended to be encompassed within the scope of the present disclosure.

Claims

1. A BIM model processing method, comprising:

acquiring an IFC file corresponding to the BIM;

2. The BIM model processing method of claim 1, wherein the converting, using a conversion tool IFCConvert, the attribute information IFCPropertyDefinition and the entity relationship ifcrelanoship corresponding to the entity object IFCObjectDefinition to generate the corresponding GLB file includes:

3. The BIM model processing method of claim 2, wherein the receiving the task execution result fed back by the target computing node for the conversion task to obtain the GLB file corresponding to the entity object IFCObjectDefinition includes:

4. The BIM model processing method of claim 3, wherein the task execution result further includes: GLB model identification ID, transition time spent, transition status identification code; wherein the conversion state identification code comprises a first identification code corresponding to a conversion success state and a second identification code corresponding to a conversion failure state;

the BIM model processing method further comprises the following steps:

5. The BIM model processing method of claim 1, wherein the attribute information IFCPropertyDefinition includes: at least one of three-dimensional model elements, structural elements, materials, textures, specifications, light effects and animations.

6. The BIM model processing method of any one of claims 1 to 4, further comprising:

7. The BIM model processing method of claim 6, wherein the loading and overlaying the GLB model corresponding to each GLB file into the GIS three-dimensional map scene includes:

8. The BIM model processing method of claim 7, wherein the real geospatial information includes: longitude, latitude, angle, altitude, and time.

9. A server comprising a processor, a memory and a computer program stored in the memory and executable on the processor, the processor implementing the BIM model processing method according to any one of claims 1 to 8 when the computer program is executed.

10. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program; the computer program, when executed by a processor, implements a BIM model processing method according to any one of claims 1 to 8.