CN115423993A - Three-dimensional GIS-based layered household monomer method and system - Google Patents
Three-dimensional GIS-based layered household monomer method and system Download PDFInfo
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Abstract
The application discloses a three-dimensional GIS-based layered household-based monomer method and a system, wherein the method comprises the following steps: importing a three-dimensional model of a building based on three-dimensional GIS software; generating a plurality of different projection surfaces according to the three-dimensional model, and merging vector elements in the same projection surface to generate a vector surface; carrying out polygon segmentation processing and three-dimensional stretching processing on the combined vector surface elements; copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of a preset floor, reading preset layered household parameter information, respectively setting the attributes of the vector surface elements corresponding to the layered household parameters according to the layered household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a single model of the layered household. The application greatly improves the working efficiency and reduces the input errors caused by manual processing.
Description
Technical Field
The application relates to the technical field of building model monomer, in particular to a three-dimensional GIS-based layered household monomer method and system.
Background
Three-dimensional models are currently very widely used in various fields due to their intuitiveness. For oblique photography and 3DMAX modeling, a generated model is a single building unit, the single building is an object, and the model needs to be processed in a plurality of business scenes to be locally and singly displayed.
The existing processing method mainly comprises the steps of manually drawing a vector surface based on a model contour, and when a building has a plurality of different cross sections in the longitudinal direction, drawing a plurality of vector surface elements with different cross sections. And adding the name, bottom elevation and height attributes of the single object into the corresponding element attribute table. The manually drawn vector surface elements then need to be copied in multiple copies by the number of current floors, depending on the number of singulated objects. And acquiring the information of the bottom elevation and the height of each monomer through the model, and then sequentially filling the name, the bottom elevation and the height attribute information of the monomer element corresponding to each element into each element attribute table. And then, stretching and filling are carried out on the three-dimensional GIS desktop software according to the three-dimensional vector surface, the bottom elevation uses the bottom elevation of the vector surface manually drawn in the front, and the stretching height uses the height attribute of the vector surface. This is done by a number of manual operations. Attribute input errors easily result due to the fact that vector planes are comparatively many.
Disclosure of Invention
Aiming at least one defect or improvement requirement in the prior art, the invention provides a three-dimensional GIS-based layered household monomer method and a system, which greatly improve the working efficiency and reduce the input errors caused by manual processing.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a layered household-based singulation method based on a three-dimensional GIS, the method including:
importing a three-dimensional model of a building based on three-dimensional GIS software;
generating a plurality of different projection surfaces according to the three-dimensional model, and merging vector elements in the same projection surface to generate a vector surface;
carrying out polygon segmentation processing and three-dimensional stretching processing on the combined vector surface elements;
copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of a preset floor, reading preset layered household parameter information, respectively setting the attributes of the vector surface elements corresponding to the layered household parameters according to the layered household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a single model of the layered household.
Further, the above hierarchical household-based singulation method based on a three-dimensional GIS, where the generating a plurality of different projection planes according to the three-dimensional model and combining vector elements in the projection planes to generate a vector plane specifically includes:
analyzing a three-dimensional model of the building based on attribute characteristics of the building which is formed by layering, dividing and individualizing to obtain a plurality of different cross sections;
performing section analysis on the cross section to generate a plurality of different projection surfaces;
and merging the vector elements based on the projection plane, removing redundant lines and planes in the cross section, and generating a vector plane corresponding to the projection plane.
Further, the three-dimensional GIS-based hierarchical household-based singulation method includes the following specific steps:
stretching and amplifying the vector surface element;
carrying out polygon segmentation processing on the vector surface elements according to the part which needs to be singled actually;
collecting the vector surface elements subjected to polygon segmentation processing into a vector file, and performing three-dimensional stretching processing on the vector file to wrap a model area needing to be individualized;
and inspecting the stretched three-dimensional image, and adjusting the size and the position of the vector surface element according to an inspection result.
Further, the three-dimensional GIS-based hierarchical household individualization method includes the steps of copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of a preset floor, reading preset hierarchical household parameter information, respectively setting attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain an individualization model of the hierarchical household, and specifically includes:
reading preset layered household parameter information, and setting the attribute of the vector surface element corresponding to the layered household parameter according to the layered household parameter information;
exporting the vector file through three-dimensional GIS software, and importing the exported vector file into a vector data processing tool;
further, the three-dimensional GIS-based hierarchical household individualization method includes at least: the information of the height of the bottom of each hierarchical household, the height of the top of each hierarchical household, the information of the highest floor, the information of the lowest floor, the information of the building number, the information of the unit number and the information of the house number.
Further, the three-dimensional GIS-based hierarchical household individualization method includes the steps of copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of a preset floor, reading preset hierarchical household parameter information, respectively setting attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain an individualization model of the hierarchical household, and further includes:
traversing the vector data in the vector file by the vector data processing tool, and reading bottom height information of each hierarchical household, top height information of each hierarchical household, highest floor information and lowest floor information;
calculating floor information according to the highest floor information and the lowest floor information, and calculating floor height information according to the bottom height information and the top height information;
the lowest floor number is assigned to the floor attribute through the vector data processing tool, the floor height information is assigned to the floor height attribute, the bottom elevation information is assigned to the vector bottom attribute, the floor number is assigned to the floor attribute, and the name attribute is 'building number + unit number + floor number +0+ room number'.
Further, the three-dimensional GIS-based hierarchical household individualization method may further include:
copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors;
the corresponding floor information is assigned to the floor attribute of each vector surface element through a vector data processing tool, the floor height information is assigned to the floor height attribute, the bottom elevation of each floor is calculated according to the floor number information, the lowest floor number information, the floor height information and the bottom elevation information, the floor height is assigned to the bottom attribute of each vector surface element, the floor number is assigned to the floor attribute, and the name attribute is 'building number + unit number + floor number +0+ room number'.
Further, the three-dimensional GIS-based hierarchical household individualization method may further include:
exporting the processed vector file;
and stretching the vector surface element in the vector file, stretching the attribute bottom according to the bottom attribute of the vector surface element, and stretching the height according to the layer height attribute of the vector surface element to obtain a single model of layered household division.
According to the second aspect of the present invention, there is also provided a three-dimensional GIS-based hierarchical household-based singulation system, including:
the three-dimensional model importing module is used for importing a three-dimensional model of a building;
the vector plane construction module is used for generating a plurality of different projection planes according to the three-dimensional model, and merging vector elements in the same projection plane to generate a vector plane;
the dividing and stretching processing module is used for performing polygon dividing processing and three-dimensional stretching processing on the combined vector surface elements;
and the vector data processing module is used for copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors, reading preset hierarchical household parameter information, respectively setting the attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a single body model of the hierarchical household.
According to a third aspect of the present invention, there is also provided a hierarchical, user-individual device based on a three-dimensional GIS, comprising at least one processing unit and at least one storage unit, wherein the storage unit stores a computer program, which, when executed by the processing unit, causes the processing unit to perform any of the method steps described above.
According to a fourth aspect of the present invention, there is also provided a storage medium storing a computer program executable by a three-dimensional GIS-based hierarchical singulating device, the computer program causing the three-dimensional GIS-based hierarchical singulating device to perform the steps of any one of the above-mentioned methods when the computer program is run on the three-dimensional GIS-based hierarchical singulating device.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
according to the three-dimensional GIS-based layered household-based monomer method, vector graphs projected by different cross sections are obtained by using three-dimensional GIS software, and a vector plane does not need to be drawn manually based on a model contour; vector surface elements are copied by adopting a vector data automatic processing tool based on the number of layers, each vector surface element attribute is automatically assigned according to the hierarchical user classifying data, the assigned vector surface elements are stretched, a single-body model of the hierarchical user is directly obtained, the working efficiency is greatly improved, and meanwhile, input errors caused by manual processing are reduced.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of a layered household-based singulation method based on a three-dimensional GIS according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a three-dimensional GIS-based hierarchical household-based singleization system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The terms "first," "second," "third," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between different elements and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
On one hand, the present application provides a layered household-based singulation method based on a three-dimensional GIS, and fig. 1 is a schematic flow diagram of the layered household-based singulation method based on the three-dimensional GIS according to the embodiment of the present application, please refer to fig. 1. The method comprises the following steps:
(1) Importing a three-dimensional model of a building based on three-dimensional GIS software;
in a specific embodiment, the three-dimensional GIS software supports import and viewing of three-dimensional model data, cross-section analysis and projection plane analysis of a three-dimensional model, merging and segmentation of vector planes and editing of attributes, import and export of vector data, and stretching operation of the vector planes.
(2) Generating a plurality of different projection surfaces according to the three-dimensional model, and merging vector elements in the same projection surface to generate a vector surface;
specifically, whether a plurality of different cross sections exist in a three-dimensional model of the building is analyzed based on attribute characteristics of the building which is formed by layering, individual household and single-body building, and a plurality of different cross sections are obtained; performing section analysis on the cross section to generate a plurality of different projection surfaces; and merging the vector elements based on the projection plane, removing redundant lines and surfaces in the cross section, and generating a vector plane with only an outer contour corresponding to the projection plane.
(3) Carrying out polygon segmentation processing and three-dimensional stretching processing on the merged vector surface elements;
specifically, the vector surface element is stretched and amplified up, down, left, right and through three-dimensional GIS software, and it is determined that the stretched vector surface element can contain the original vector surface element. The purpose of the enlargement is mainly that after the solid stretching, the stretched geometric body can completely contain the model area to be individualized; and carrying out polygon segmentation processing on the vector elements subjected to the merging processing according to the part to be actually singulated. The cross-section is based primarily on the entire floor area of the architectural model. In the task of layered, individual and single-processing, each layer needs to be divided into different single-processing objects, so that the vector plane needs to be divided based on the task requirement. The vector surface elements after polygon segmentation processing are collected into a vector file, the vector file is subjected to three-dimensional stretching processing, whether the stretched three-dimensional body can wrap a single model area or not is checked, and the size and the position of the vector elements are finely adjusted according to a detection result, so that the single model area where the current cross section is located can be completely wrapped after the vector elements are stretched.
(4) Copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors, reading preset hierarchical household parameter information, respectively setting the attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a single model of the hierarchical household.
Checking the layered household parameter information through three-dimensional GIS software, at least comprising the following steps: the information of the height of the bottom of each hierarchical household, the height of the top of each hierarchical household, the information of the highest floor, the information of the lowest floor, the information of the number of buildings, the information of the number of units and the information of the number of rooms. Filling corresponding parameters in the vector surface element attributes generated by different cross-sectional diagrams; vector files are exported through three-dimensional GIS software, and vector data files are imported through a vector data processing tool.
In a specific embodiment, the vector data processing tool is used for importing a vector file, automatically copying elements through vector element attributes, and automatically generating the bottom height, the elevation and the name of each vector element according to attribute data of the imported vector elements.
Traversing vector data in the vector file by a vector data processing tool, and reading bottom height information of layered households, top height information of the layered households, highest layer number information and lowest layer number information; calculating (highest layer-lowest layer + 1) layer number information according to the highest layer number information and the lowest layer number information, and calculating ((top height-bottom height)/layer number) layer height information according to the bottom height information and the top height information; the lowest floor number is assigned to the floor attribute through the vector data processing tool, the floor height information is assigned to the floor height attribute, the bottom elevation information is assigned to the vector bottom attribute, the floor number is assigned to the floor attribute, and the name attribute is 'building number + unit number + floor number +0+ room number'.
And copying the vector surface elements to obtain a plurality of vector surface elements with the same number as the preset number of floors, namely copying the number of floors for-1 time. The corresponding floor information is assigned to the floor attribute of each vector surface element through a vector data processing tool, the floor height information is assigned to the floor height attribute, the bottom elevation of each floor is calculated according to the floor number information, the lowest floor number information, the floor height information and the bottom elevation information, the bottom attribute of each vector surface element is assigned, the floor number is assigned to the floor attribute, and the number of the floor, the number of the unit, the number of the floor, the number of the 0 and the house number are used as name attributes.
Exporting the processed vector file by a vector data processing tool, and importing the vector file processed by the vector surface data processing tool by using three-dimensional GIS software; and stretching the vector surface element in the vector file, selecting the bottom attribute of the vector surface element at the bottom of the pull-up attribute, and stretching the vector surface element at the height selected by the pull-up attribute to obtain a single-body model of layered household division. And checking whether the fitting relation between the model after the vector surface element is stretched and the actual building and the corresponding attribute information are consistent with the actual building or not, and if not, performing stretching adjustment again.
On the other hand, the present application provides a three-dimensional GIS-based hierarchical household individualization system, and fig. 2 is a schematic diagram of the three-dimensional GIS-based hierarchical household individualization system provided in the embodiment of the present application. Referring to fig. 2, the system includes: the system comprises a three-dimensional model importing module, a vector plane constructing module, a segmentation and stretching processing module and an attribute assignment and stretching module.
The three-dimensional model importing module is used for importing a three-dimensional model of a building;
the vector surface construction module is used for generating a plurality of different projection surfaces according to the three-dimensional model, and merging vector elements in the same projection surface to generate a vector surface;
the segmentation and stretching processing module is used for carrying out polygon segmentation processing and three-dimensional stretching processing on the combined vector surface elements;
the vector data processing module is used for copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors, reading preset hierarchical household parameter information, respectively setting the attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the vector surface element attributes, and stretching the assigned vector surface elements to obtain a single body model of the hierarchical household.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method. The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
It should be noted that for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some service interfaces, indirect coupling or communication connection of devices or units, and may be electrical or in other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program, which is stored in a computer-readable memory, and the memory may include: flash disks, read-Only memories (ROMs), random Access Memories (RAMs), magnetic or optical disks, and the like.
The above description is merely an exemplary embodiment of the present disclosure, and the scope of the present disclosure is not limited thereto. It is intended that all equivalent variations and modifications made in accordance with the teachings of the present disclosure be covered thereby. Embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.
Claims (10)
1. A three-dimensional GIS-based layered household-based monomer method is characterized by comprising the following steps:
importing a three-dimensional model of a building based on three-dimensional GIS software;
generating a plurality of different projection surfaces according to the three-dimensional model, and merging vector elements in the same projection surface to generate a vector surface;
carrying out polygon segmentation processing and three-dimensional stretching processing on the combined vector surface elements;
copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors, reading preset hierarchical household parameter information, respectively setting the attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the vector surface element attributes, and stretching the assigned vector surface elements to obtain a single model of the hierarchical household.
2. The three-dimensional GIS-based hierarchical household singulation method according to claim 1, wherein the generating a plurality of different projection planes according to the three-dimensional model, and merging vector elements in the projection planes to generate a vector plane specifically includes:
analyzing a three-dimensional model of the building based on attribute characteristics of the building which is formed by layering, individual household and single body, and obtaining a plurality of different cross sections;
performing section analysis on the cross section to generate a plurality of different projection surfaces;
and merging the vector elements based on the projection plane, removing redundant lines and planes in the cross section, and generating a vector plane corresponding to the projection plane.
3. The three-dimensional GIS-based hierarchical household singulation method according to claim 2, wherein the performing polygon segmentation processing and stereo stretching processing on the merged vector surface elements specifically comprises:
stretching and amplifying the vector surface element;
performing polygon segmentation processing on the vector surface elements according to the part which needs to be individualized actually;
collecting the vector surface elements subjected to polygon segmentation processing into a vector file, and performing three-dimensional stretching processing on the vector file to wrap a model area needing to be individualized;
and inspecting the stretched stereo, and adjusting the size and the position of the vector surface element according to an inspection result.
4. The three-dimensional GIS-based hierarchical household singulation method according to claim 3, wherein the copying the vector surface elements to obtain a plurality of vector surface elements with the same number as a preset number of floors, reading preset hierarchical household parameter information, respectively setting attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a singulation model of the hierarchical household, specifically comprises:
reading preset layered household parameter information, and setting the attribute of the vector surface element corresponding to the layered household parameter according to the layered household parameter information;
exporting the vector file through three-dimensional GIS software, and importing the exported vector file into a vector data processing tool.
5. The three-dimensional GIS-based hierarchical household individualization method according to claim 4, wherein the hierarchical household parameter information at least includes: the information of the height of the bottom of each hierarchical household, the height of the top of each hierarchical household, the information of the highest floor, the information of the lowest floor, the information of the number of buildings, the information of the number of units and the information of the number of rooms.
6. The three-dimensional GIS-based hierarchical and individual household method according to claim 5, wherein the copying of the vector surface elements to obtain a plurality of vector surface elements with the same number as that of a preset floor, reading preset hierarchical and individual household parameter information, setting attributes of the vector surface elements corresponding to the hierarchical and individual household parameters according to the hierarchical and individual household parameter information, assigning the vector surface element attributes, and performing stretching processing on the assigned vector surface elements to obtain an individual model of the hierarchical and individual household, further comprises:
traversing the vector data in the vector file by the vector data processing tool, and reading bottom height information of each hierarchical household, top height information of each hierarchical household, highest floor information and lowest floor information;
calculating floor number information according to the highest floor number information and the lowest floor number information, and calculating floor height information according to the bottom height information and the top height information;
the lowest floor number is assigned to the floor attribute through the vector data processing tool, the floor height information is assigned to the floor height attribute, the bottom elevation information is assigned to the vector bottom attribute, the floor number is assigned to the floor attribute, and the name attribute is 'building number + unit number + floor number +0+ room number'.
7. The three-dimensional GIS-based hierarchical household singulation method according to claim 6, wherein the method further comprises the steps of copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of preset floors, reading preset hierarchical household parameter information, respectively setting attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a singulation model of the hierarchical household, and further comprises:
copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors;
the corresponding floor information is assigned to the floor attribute of each vector surface element through a vector data processing tool, the floor height information is assigned to the floor height attribute, the bottom elevation of each floor is calculated according to the floor number information, the lowest floor number information, the floor height information and the bottom elevation information, the floor height is assigned to the bottom attribute of each vector surface element, the floor number is assigned to the floor attribute, and the name attribute is 'building number + unit number + floor number +0+ room number'.
8. The three-dimensional GIS-based hierarchical household singulation method according to claim 7, wherein the method further comprises the steps of copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of preset floors, reading preset hierarchical household parameter information, respectively setting attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a singulation model of the hierarchical household, and further comprises:
exporting the processed vector file;
and stretching the vector surface element in the vector file, stretching the attribute bottom according to the bottom attribute of the vector surface element, and stretching the height according to the layer height attribute of the vector surface element to obtain a single model of layered households.
9. A three-dimensional GIS-based layered household monomer system is characterized by comprising:
the three-dimensional model importing module is used for importing a three-dimensional model of a building;
the vector plane construction module is used for generating a plurality of different projection planes according to the three-dimensional model, and merging vector elements in the same projection plane to generate a vector plane;
the segmentation and stretching processing module is used for carrying out polygon segmentation processing and three-dimensional stretching processing on the combined vector surface elements;
and the vector data processing module is used for copying the vector surface elements to obtain a plurality of vector surface elements with the same number as that of the preset floors, reading preset hierarchical household parameter information, respectively setting the attributes of the vector surface elements corresponding to the hierarchical household parameters according to the hierarchical household parameter information, assigning the attributes of the vector surface elements, and stretching the assigned vector surface elements to obtain a single body model of the hierarchical household.
10. A storage medium storing a computer program executable by a three-dimensional GIS-based hierarchical household-singleton device, the computer program causing the three-dimensional GIS-based hierarchical household-singleton device to perform the steps of the method of any one of claims 1 to 8 when the computer program is run on the three-dimensional GIS-based hierarchical household-singleton device.
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|---|---|---|---|---|
| CN115880438A (en) * | 2023-01-06 | 2023-03-31 | 中国民航大学 | Head model construction method and system, electronic device and storage medium |
| CN117475095A (en) * | 2023-10-11 | 2024-01-30 | 吉奥时空信息技术股份有限公司 | Layered household modeling method and system for live-action three-dimensional building |
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2022
- 2022-09-15 CN CN202211120724.0A patent/CN115423993A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115880438A (en) * | 2023-01-06 | 2023-03-31 | 中国民航大学 | Head model construction method and system, electronic device and storage medium |
| CN117475095A (en) * | 2023-10-11 | 2024-01-30 | 吉奥时空信息技术股份有限公司 | Layered household modeling method and system for live-action three-dimensional building |
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