CN109902387B - Method and device for sectioning or isolating based on small map - Google Patents
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Abstract
A method and apparatus for map-based sectioning and isolation, the method comprising the steps of: receiving and storing a three-dimensional model; converting different three-dimensional models into unified three-dimensional lightweight format data, wherein the three-dimensional lightweight format data comprise attribute information, and the attribute information comprises a small map, shaft network information and floor elevation information of each floor; providing a cut-away, isolated operational function. The method and the device can hide the API calling details, can interactively edit in the small map, then select corresponding sectioning or isolating operation, have simple and visual whole using process, and are suitable for users without programming foundations.
Description
Technical Field
The invention belongs to the technical field of building design, and particularly relates to a small map-based sectioning or isolation method and device.
Background
The Building Information Model (BIM) is a complete information model, and can integrate engineering information, processes and resources of engineering projects at different stages in a full life cycle into one model, so that the engineering project is conveniently used by all engineering participants. The real information of the building is simulated by the three-dimensional digital technology, and an information model which is mutually coordinated and internally consistent is provided for engineering design and construction, so that the model achieves the integration of design and construction, and all professions work cooperatively, thereby reducing the engineering production cost and ensuring the timely and quality-based completion of the engineering. BIM is not simply an integration of digital information, but rather an application of digital information, and can be used in a digital method of design, construction, and management. The method supports the integrated management environment of the building engineering, and can obviously improve the efficiency and greatly reduce the risks of the building engineering in the whole process.
Model design is a fundamental and premier step in BIM technology. The three-dimensional model design software which is mature in the aspect of building design at present comprises Revit series software of Autodesk and Bentley BIM Suite series software of Bentley company, and the three-dimensional model design software is modeled in a visual mode. With the development of cloud technology, more and more application programs start to web, and users can conveniently use the application programs through web pages or mobile phones. Three-dimensional model lightweight applications generally include model data conversion, web-side rendering, and model data consumption. The model data conversion extracts lightweight geometric data and important information for secondary consumption from a huge original model, so that the data volume of the model is greatly compressed, and a foundation is laid for web end display and editing; the web end rendering mainly renders geometrical data such as a dotted line and a plane and presents the geometrical data to a user; the model data consumption stage is the most concerned part of the user, and the user can perform online interactive operation, component attribute browsing and the like on the model at the web end.
In the online interactive operation part, two operations which are relatively frequently used by a user are cut or isolated. The user can separate the model part concerned by himself by the sectioning operation and then make further consumption on the basis of this. Isolation behaves like sectioning, except that the isolation is of two types, one is isolation hidden and the other is isolation translucent. The traditional sectioning or isolating method is explicitly set by calling an API, so that a user not only needs to have a certain programming basis, but also is cumbersome and not intuitive to operate.
Disclosure of Invention
The application provides a method and a device for sectioning or isolating based on a small map, which can hide API call details, interactively edit operation in the small map, then select corresponding sectioning or isolating operation, and is simple and visual in the whole using process and suitable for users without programming foundations.
The invention provides a method for sectioning or isolating based on a small map, which comprises the following steps:
receiving and storing a three-dimensional model;
converting different three-dimensional models into unified three-dimensional lightweight format data, wherein the three-dimensional lightweight format data comprise attribute information, and the attribute information comprises a small map, shaft network information and floor elevation information of each floor;
providing cut-out or isolation of operational functions, including in particular:
calculating the size of a split box formed by a rectangular frame, wherein x, y component coordinates of the split box are x, y component coordinates of the rectangular frame under a world coordinate space obtained based on the axis network information, and z component coordinates of the split box are obtained from the floor elevation information;
providing a sectioning operation: the components that coincide with the split box are shown, the other components are hidden;
or, providing an isolation operation: filtering components not in the split box with the split box and returning a component id set contained in the split box, wherein components in the component id set are normally displayed, and other components are isolated.
Further, the x, y component coordinates of the rectangular frame in world coordinate space are obtained based on the axis network information, specifically:
and calculating a bounding box of the floor by utilizing the axis network information, and mapping local coordinates of the rectangular frame to a world coordinate space through the bounding box to obtain x, y component coordinates of the rectangular frame in the world coordinate space.
Further, the three-dimensional lightweight format data also includes geometric information that stores face information with a polygonal mesh.
Further, upon receiving an operation of drawing a rectangular frame by a user, the operation function of cutting or isolating is provided.
Further, the isolation includes both translucent isolation and hidden isolation states.
The invention also provides a small map-based sectioning or isolating device, which comprises a storage module, a conversion module and a model data consumption module:
the storage module is used for receiving and storing the three-dimensional model;
the conversion module is used for converting different three-dimensional models into unified three-dimensional lightweight data, wherein the three-dimensional lightweight data comprise attribute information, and the attribute information comprises a small map, shaft network information and floor elevation information of each floor;
the model data consumption module is used for providing a sectioning or isolating operation function;
the operation functions for providing sectioning or isolation specifically comprise:
calculating the size of a split box formed by a rectangular frame, wherein x, y component coordinates of the split box are x, y component coordinates of the rectangular frame under a world coordinate space obtained based on the axis network information, and z component coordinates of the split box are obtained from the floor elevation information;
providing a sectioning operation: the components that coincide with the split box are shown, the other components are hidden;
or, providing an isolation operation: filtering components not in the split box with the split box and returning a component id set contained in the split box, wherein components in the component id set are normally displayed, and other components are isolated.
Further, the x, y component coordinates of the rectangular frame in world coordinate space are obtained based on the axis network information, specifically:
and calculating a bounding box of the floor by utilizing the axis network information, and mapping local coordinates of the rectangular frame to a world coordinate space through the bounding box to obtain x, y component coordinates of the rectangular frame in the world coordinate space.
Further, the three-dimensional lightweight format data also includes geometric information that stores face information with a polygonal mesh.
Further, upon receiving an operation of drawing a rectangular frame by a user, a cut-off or isolation operation function is provided.
Further, the isolation includes both translucent isolation and hidden isolation states.
The application also provides an electronic device, which is characterized in that the electronic device comprises: a storage device and one or more processors;
the storage device is configured to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the methods described above.
The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed, implements the above-described method.
Compared with the prior art, the method and the device for sectioning or isolating based on the small map perform business operation on the basis of the small map, fully utilize attribute information in model data, interactively edit operation in the small map, select a corresponding sectioning or isolating operation as an interactive simple and direct mode, provide good model editing experience for users, and are convenient which cannot be achieved by the traditional mode of calling an API, and are suitable for users without programming basis.
Drawings
In order to facilitate an understanding and a complete description of the technical solutions of the present application by a person skilled in the art, reference is made to the accompanying drawings, it being apparent that the described embodiments are only some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
FIG. 1 is a flow chart of a minimap-based sectioning or isolation method of the present application.
Fig. 2 is a process schematic of the present application providing cut-away or isolated operational functionality.
Fig. 3 is a schematic block diagram of a split or isolator based on a minimap 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 traditional sectioning or isolating method of the online interactive operation part is explicitly set by calling an API, and is cumbersome and not intuitive to operate. The split or isolation technical scheme based on the small map is a new interactive scheme, and no similar mature technology exists in the prior art. The scheme can hide the API call details, provide a visual and concise mode for users, and is used for operating and editing the online model. The key points of the technical scheme of the application comprise two parts: firstly, attribute information comprising floor elevation information and axis network information is obtained when the three-dimensional model is converted, so that subsequent sectioning or isolation is facilitated; and secondly, sectioning or isolating in a small map mode, and sectioning or isolating by means of floor elevation information and shaft network information.
Embodiment one:
as shown in fig. 1, a first embodiment of the present application provides a method for sectioning or isolation based on a small map, the method running in a cloud, the method comprising the steps of:
(1) And receiving and storing a three-dimensional model, wherein the three-dimensional model is uploaded to the cloud by a user.
(2) And converting different three-dimensional models into data in a unified three-dimensional lightweight format, and storing the converted results. Different three-dimensional models are converted into data in a unified three-dimensional lightweight format, so that the model data volume can be reduced, and meanwhile, the model data format is unified, so that cloud deployment is facilitated.
The converted data in the three-dimensional lightweight format comprises geometric information and attribute information, and the geometric information and the attribute information are used for representing components in a three-dimensional model. Wherein the geometric information stores the information of the face with a polygon mesh, and the attribute information is stored through a database. The attribute information includes a small map, axis network information, and floor elevation information for each floor. The shaft net information has a positioning function, the shaft net is a main body frame of a building drawing, and main supporting members of the building are positioned and arranged according to the shaft net, so that the shaft net information is orderly. The floor elevation information enables two-dimensional frame selection in the small map to be converted into a space of an actual building model, and possibility is provided for sectioning or isolation of the model.
(3) Providing a cut-away or isolated operational function. Upon receiving an operation of drawing a rectangular frame by a user, an operation function of sectioning or isolation is provided.
The user draws a rectangular frame in the small map, and selects subsequent sectioning or isolation operation, and the step can provide the user with required data-based functions including functions of model attribute browsing, component tree, small map functions and the like.
Referring to fig. 2, the operation functions for providing sectioning or isolation include:
(1) Calculating a bounding box (recorded as a FloorBox) of the floor by utilizing the axis network information, and mapping local coordinates of a rectangular frame drawn in a panel to a world coordinate space through the bounding box FloorBox to obtain x, y component coordinates of the rectangular frame in the world coordinate space;
(2) And calculating the size of a split box formed by the rectangular frame, wherein the x, y component coordinates of the split box are the x, y component coordinates of the rectangular frame in the world coordinate space, and the z component coordinates of the split box are obtained from the floor elevation information of the model. Thus, the three-dimensional split box corresponding to the split rectangular frame is calculated.
(3) For the sectioning operation, only the part of the member that coincides with the sectioning box is shown, the other part of the member being hidden.
(4) For the isolation operation, the components not in the split box are filtered by the split box obtained after calculation, and the id set of the components contained in the split box is returned, wherein the components in the id set are normally displayed, and the components of other ids are isolated. The isolation comprises two selectable states, one is a semi-transparent isolation and the other is a hidden isolation.
In actual operation, when browsing the light-weight model formed by the data in the three-dimensional light-weight data format, a user can open the small map function in the corresponding toolbar, a small map panel can appear at the moment, only a floor small map is in an initial state, the shaft network information is not loaded, and meanwhile, the split or isolation operation cannot be performed. If the user opens the minimap panel, the minimap and the axis information will be loaded. When the mouse moves on the panel, if the mouse touches the intersection point of the axis net, the axis net number and the coordinates are highlighted. When a user clicks a certain area on the panel, a mouse response event is triggered, and the view angle of the model is correspondingly changed. The user can also draw a rectangular frame on the small map panel, and after completion, a cut or an isolation and cancel button can appear below the rectangular frame. The user selects corresponding operation according to the actual demand of the user.
Embodiment two:
as shown in fig. 3, a second embodiment of the present application provides a device for sectioning or isolating based on a small map, where the device includes a storage module, a conversion module, and a model data consumption module located in a cloud platform.
The storage module is used for storing the three-dimensional model uploaded by the user.
The conversion module is used for converting different three-dimensional models into data in a unified three-dimensional lightweight format, and the converted results are stored in the storage module. The conversion module converts different three-dimensional models into data in a unified three-dimensional lightweight format, so that the model data volume can be reduced, and meanwhile, the model data format is unified, so that cloud deployment is facilitated.
The converted data in the three-dimensional lightweight format includes geometric information and attribute information, which together represent components in a three-dimensional model. Wherein the geometric information stores the information of the face with a polygon mesh, and the attribute information is stored through a database. The attribute information includes a small map, axis network information, and floor elevation information for each floor. The shaft net information has a positioning function, the shaft net is a main body frame of a building drawing, and main supporting members of the building are positioned and arranged according to the shaft net, so that the shaft net information is orderly. The floor elevation information enables two-dimensional frame selection in the small map to be converted into a space of an actual building model, and possibility is provided for sectioning or isolation of the model.
The model data consumption module is used for receiving the operation of drawing a rectangular frame and providing the operation functions of sectioning or isolation. When the user draws a rectangular box in the minimap, then selects a subsequent cut or isolation operation. The model data consumption module provides data-based functions required by users, including model attribute browsing, component tree, small map functions, and the like.
The operation functions for cutting or isolating for users comprise:
(1) Calculating a bounding box (recorded as a FloorBox) of the floor by utilizing the axis network information, and mapping local coordinates of a rectangular frame drawn in a panel to a world coordinate space through the bounding box FloorBox to obtain x, y component coordinates of the rectangular frame in the world coordinate space;
(2) And calculating the size of a split box formed by the rectangular frame, wherein the x, y component coordinates of the split box are the x, y component coordinates of the rectangular frame in the world coordinate space, and the z component coordinates of the split box are obtained from the floor elevation information of the model. Thus, the three-dimensional split box corresponding to the split rectangular frame is calculated.
(3) For the sectioning operation, only the part of the member that coincides with the sectioning box is shown, the other part of the member being hidden.
(4) For the isolation operation, the components not in the split box are filtered by the split box obtained after calculation, and the id set of the components contained in the split box is returned, wherein the components in the id set are normally displayed, and the components of other ids are isolated. The isolation comprises two selectable states, one is a semi-transparent isolation and the other is a hidden isolation.
In actual operation, when browsing the light-weight model formed by the data in the three-dimensional light-weight data format, a user can open the small map function in the corresponding toolbar, a small map panel can appear at the moment, only a floor small map is in an initial state, the shaft network information is not loaded, and meanwhile, the split or isolation operation cannot be performed. If the user opens the minimap panel, the minimap and the axis information will be loaded. When the mouse moves on the panel, if the mouse touches the intersection point of the axis net, the axis net number and the coordinates are highlighted. When a user clicks a certain area on the panel, a mouse response event is triggered, and the view angle of the model is correspondingly changed. The user can also draw a rectangular frame on the small map panel, and after completion, a cut or an isolation and cancel button can appear below the rectangular frame. The user selects corresponding operation according to the actual demand of the user.
In addition, the embodiment of the application also discloses an electronic device, which comprises a storage device and one or more processors, wherein the storage device is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the method as in the embodiment.
The embodiment of the application also discloses a computer readable storage medium, on which a computer program is stored, which when executed, implements the method as in the first embodiment.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods, apparatuses, and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams may represent a unit, module, segment, or portion of code, which comprises one or more computer-executable instructions for implementing the logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. It will also be noted that each block or combination of blocks in the block diagrams and flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The present application is not limited to any specific form of combination of hardware and software. In summary, the above embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. A method of map-based sectioning or isolation, the method comprising the steps of:
receiving and storing a three-dimensional model;
converting different three-dimensional models into unified three-dimensional lightweight format data, wherein the three-dimensional lightweight format data comprise attribute information, and the attribute information comprises a small map, shaft network information and floor elevation information of each floor;
providing cut-out or isolation of operational functions, including in particular:
when receiving the operation of drawing a rectangular frame in the small map by a user, calculating the size of a splitting box formed by the rectangular frame, wherein x, y component coordinates of the splitting box are x, y component coordinates of the rectangular frame under a world coordinate space obtained based on the axis network information, and z component coordinates of the splitting box are obtained from the floor elevation information;
providing a sectioning operation: the components that coincide with the split box are shown, the other components are hidden;
or, providing an isolation operation: filtering components not in the split box with the split box and returning a component id set contained in the split box, wherein components in the component id set are normally displayed, and other components are isolated.
2. The method for sectioning or isolating based on the small map according to claim 1, wherein x, y component coordinates of the rectangular frame in world coordinate space are obtained based on the axis network information, specifically:
and calculating a bounding box of the floor by utilizing the axis network information, and mapping local coordinates of the rectangular frame to a world coordinate space through the bounding box to obtain x, y component coordinates of the rectangular frame in the world coordinate space.
3. A method of map-based sectioning or isolation according to claim 1, wherein the three-dimensional lightweight format data further includes geometric information that stores face information with a polygonal mesh.
4. A method of map-based sectioning or isolation according to any of claims 1-3, wherein said isolation comprises both semi-transparent isolation and hidden isolation states.
5. A map-based sectioning or isolation device, the device comprising a storage module, a conversion module, and a model data consumption module:
the storage module is used for receiving and storing the three-dimensional model;
the conversion module is used for converting different three-dimensional models into unified three-dimensional lightweight data, wherein the three-dimensional lightweight data comprise attribute information, and the attribute information comprises a small map, shaft network information and floor elevation information of each floor;
the model data consumption module is used for providing a sectioning or isolating operation function;
the operation functions for providing sectioning or isolation specifically comprise:
when receiving the operation of drawing a rectangular frame in the small map by a user, calculating the size of a splitting box formed by the rectangular frame, wherein x, y component coordinates of the splitting box are x, y component coordinates of the rectangular frame under a world coordinate space obtained based on the axis network information, and z component coordinates of the splitting box are obtained from the floor elevation information;
providing a sectioning operation: the components that coincide with the split box are shown, the other components are hidden;
or, providing an isolation operation: filtering components not in the split box with the split box and returning a component id set contained in the split box, wherein components in the component id set are normally displayed, and other components are isolated.
6. The small map-based sectioning or isolating device of claim 5, wherein x, y component coordinates of the rectangular box in world coordinate space are obtained based on the axis network information, specifically:
and calculating a bounding box of the floor by utilizing the axis network information, and mapping local coordinates of the rectangular frame to a world coordinate space through the bounding box to obtain x, y component coordinates of the rectangular frame in the world coordinate space.
7. A map-based sectioning or isolating device, as defined in claim 5, wherein the three-dimensional lightweight format data further includes geometric information that stores face information with a polygonal mesh.
8. A map-based sectioning or isolating device, according to any of claims 5-7, wherein said isolation comprises both semi-transparent and hidden isolation states.
9. An electronic device, the electronic device comprising:
a storage device;
one or more processors;
the storage means is for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method of one of claims 1-4.
10. A computer readable storage medium having stored thereon a computer program which, when executed, implements the method of one of claims 1-4.
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