CN116310251A - Automatic coordinate registration method and device for house property IFC model and building vector boundary - Google Patents
Automatic coordinate registration method and device for house property IFC model and building vector boundary Download PDFInfo
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Abstract
The invention provides a method and a device for automatically registering coordinates of a house property IFC model and a building vector boundary. The automatic coordinate registration method for the house property IFC model and the building vector boundary comprises the following steps: building a corresponding relation between building boundary data and a house property IFC model; acquiring a minimum circumscribed rectangle of a building boundary and a house property IFC model plane range based on the corresponding relation; and carrying out coordinate affine transformation based on the minimum circumscribed rectangle, and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is located. The coordinate conversion control points are determined through the IFC model and the minimum circumscribed rectangle corresponding to the building vector boundary, and the problem of registering the IFC model and the building vector boundary in batches is rapidly and automatically achieved, so that the aims of improving the working efficiency and reducing the manual workload are achieved.
Description
Technical Field
The invention belongs to the technical field of building datamation, and particularly relates to a method and a device for registering automatic coordinates of a house property IFC model and a building vector boundary.
Background
When the visual display application is carried out on the building data, the sitting position of the building in the urban level or global three-dimensional scene and detailed building component information are required to be checked under a geographic coordinate system, and the IFC model under the local coordinate system is required to be automatically registered to the building vector boundary under the geographic coordinate system, namely the house is required to be dropped, so that the IFC model and the corresponding building vector boundary data are coordinated and consistent in coordinate position and direction.
At present, the requirements of registering the house property IFC model and the building vector boundary coordinate are basically completed by manpower, and the method is relatively low in efficiency by finding out the corresponding control point and then adjusting the direction; in addition, the data volume of the urban building is very large, and the manual arrangement method is huge in cost and almost impossible to realize.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method and a device for automatically registering the coordinates of the boundary of a house property IFC model and a building vector, which at least partially solve the problems of large manual workload and low efficiency in the prior art.
In a first aspect, an embodiment of the present disclosure provides a method for automatically registering a real estate IFC model and a building vector boundary, including:
building a corresponding relation between building boundary data and a house property IFC model;
acquiring a minimum circumscribed rectangle of a building boundary and a house property IFC model plane range based on the corresponding relation;
and carrying out coordinate affine transformation based on the minimum circumscribed rectangle, and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is located.
Optionally, the building the correspondence between the building boundary data and the house property IFC model includes:
and establishing a corresponding relation based on the building ID.
Optionally, the obtaining the minimum circumscribed rectangle of the building boundary and the room property IFC model plane range based on the correspondence includes:
the coordinate points rotate according to the set direction and the set angle by taking the set coordinate points as reference points to obtain new coordinate points;
rotating within a set angle range to obtain a rotating original polygon, solving a simple external rectangle of the polygon rotated by each degree, and recording the rotation degree of the simple external rectangle;
comparing all simple circumscribed rectangles obtained by rotating the original polygon in the rotating process to obtain a simple circumscribed rectangle with the smallest area, and recording the vertex coordinates and the rotating angles of the simple circumscribed rectangle with the smallest area;
and rotating the obtained simple circumscribed rectangle with the smallest area by the same angle according to the direction opposite to the set direction to obtain the smallest circumscribed rectangle, wherein the same angle is the rotating angle of the simple circumscribed rectangle with the smallest area.
Optionally, the rotating in the set angle range to obtain a rotated original polygon, and obtaining a simple circumscribed rectangle of the rotated polygon after each degree includes:
the area, vertex coordinates and degree of rotation of the simple circumscribed rectangle are recorded.
Optionally, the coordinate affine transformation based on the minimum bounding rectangle transforms the real estate IFC model into a geographic coordinate system where the building vector boundary is located, including:
and selecting the starting points of the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle of the house property IFC model, and taking the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle point of the house property IFC model as reference control points of coordinate affine in the clockwise direction to carry out coordinate affine transformation.
Optionally, selecting a starting point of a minimum bounding rectangle of the building boundary bounding rectangle and a minimum bounding rectangle of the house property IFC model includes:
and respectively selecting the corner point of the left lower corner of the minimum circumscribed rectangle of the building boundary and the corner point of the left lower corner of the minimum circumscribed rectangle of the house property IFC model as starting points.
In a second aspect, embodiments of the present disclosure further provide a device for automatically registering a real estate IFC model with a building vector boundary, including: the relation module is used for establishing a corresponding relation between the building boundary data and the house property IFC model;
the acquisition module is used for acquiring a minimum circumscribed rectangle of the building boundary and the house property IFC model plane range based on the corresponding relation;
and the transformation module is used for carrying out coordinate affine transformation based on the minimum circumscribed rectangle and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is positioned.
Optionally, the obtaining the minimum circumscribed rectangle of the building boundary and the room property IFC model plane range based on the correspondence includes:
the coordinate points rotate according to the set direction and the set angle by taking the set coordinate points as reference points to obtain new coordinate points;
rotating within a set angle range to obtain a rotating original polygon, solving a simple external rectangle of the polygon rotated by each degree, and recording the rotation degree of the simple external rectangle;
comparing all simple circumscribed rectangles obtained by rotating the original polygon in the rotating process to obtain a simple circumscribed rectangle with the smallest area, and recording the vertex coordinates and the rotating angles of the simple circumscribed rectangle with the smallest area;
and rotating the obtained simple circumscribed rectangle with the smallest area by the same angle according to the direction opposite to the set direction to obtain the smallest circumscribed rectangle, wherein the same angle is the rotating angle of the simple circumscribed rectangle with the smallest area.
In a third aspect, embodiments of the present disclosure further provide an electronic device, including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the house property IFC model and building vector boundary automatic coordinate registration method of any of the first aspects.
In a fourth aspect, embodiments of the present disclosure also provide a computer-readable storage medium storing computer instructions for causing a computer to perform the method of automatic co-ordinate registration of a property IFC model with a building vector boundary of any one of the first aspects.
According to the room property IFC model and building vector boundary automatic coordinate registration method and device, coordinate conversion control points are determined through the IFC model and the minimum circumscribed rectangle corresponding to the building vector boundary, and the problem of batch IFC model and building vector boundary registration is rapidly and automatically achieved, so that the purposes of improving working efficiency and reducing manual workload are achieved.
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The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the disclosure.
FIG. 1 is a flowchart of a method for automatic coordinate registration of a property IFC model and a building vector boundary provided in an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a minimum bounding rectangle of GIS data and an IFC model plane provided by embodiments of the present disclosure;
FIG. 3 is a schematic diagram illustrating an effect of automatic coordinate matching between an IFC model and GIS data according to an embodiment of the present disclosure;
FIG. 4 is a schematic block diagram of a device for automatic coordinate registration of a property IFC model and a building vector boundary provided in an embodiment of the present disclosure;
fig. 5 is a schematic block diagram of an electronic device according to an embodiment of the present disclosure.
Detailed Description
Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
It should be appreciated that the following specific embodiments of the disclosure are described in order to provide a better understanding of the present disclosure, and that other advantages and effects will be apparent to those skilled in the art from the present disclosure. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the disclosure by way of illustration, and only the components related to the disclosure are shown in the illustrations, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The abbreviation of IFC, industry Foundation Class, means industry basic class, the IFC standard describes the standard format commonly used by BIM, is a public standard which is not controlled by any supplier, is the most comprehensive data model standard in the construction industry of building engineering, and comprises engineering data definition required by each stage of the field of the building engineering. The core of the house property IFC model is to provide a complete building engineering information base consistent with the actual situation for the model by establishing a virtual building engineering three-dimensional model and utilizing a digitizing technology, wherein the building engineering information base comprises geometric information, professional attributes, state information and the like for describing building components. Typically a local coordinate system.
Building vector boundaries are boundary range vector data of ground buildings and express range information of the buildings. Typically a geographic coordinate system.
For easy understanding, as shown in fig. 1, the embodiment discloses a method for automatically registering coordinates of a house property IFC model and a building vector boundary, which includes:
step S101: building a corresponding relation between building boundary data and a house property IFC model;
step S102: acquiring a minimum circumscribed rectangle of a building boundary and a house property IFC model plane range based on the corresponding relation;
step S103: and carrying out coordinate affine transformation based on the minimum circumscribed rectangle, and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is located.
Optionally, the building the correspondence between the building boundary data and the house property IFC model includes:
and establishing a corresponding relation based on the building ID.
Optionally, the obtaining the minimum circumscribed rectangle of the building boundary and the room property IFC model plane range based on the correspondence includes:
the algorithm of a simple circumscribed rectangle of the polygon is realized first. A simple circumscribed rectangle refers to a circumscribed rectangle with sides parallel to the x-axis or y-axis. The simple bounding rectangle is most likely not the smallest bounding rectangle, but rather a bounding rectangle that is very easy to find.
The coordinate points rotate according to the set direction and the set angle by taking the set coordinate points as reference points to obtain new coordinate points;
let the point on the plane, (x 1, y 1) rotate counterclockwise by an angle θ around another point, (x 0, y 0) be, (x 2, y 2), then there are:
x2＝(x1-x0)cosθ-(y1-y0)sinθ+x0；
y2＝(x1-x0)sinθ+(y1-y0)cosθ+y0；
continuing to rotate to obtain (x 3, y 3) … … (xn, yn);
rotating within a set angle range to obtain a rotating original polygon, solving a simple external rectangle of the polygon rotated by each degree, and recording the rotation degree of the simple external rectangle; i.e. connecting (x 1, y 1), (x 0, y 0), (x 2, y 2) gives a polygon, then connecting (x 1, y 1), (x 0, y 0), (x 2, y 2), (x 3, y 3) gives another polygon, and so on.
The original polygon is rotated (circulation, -90 degrees, the distance can be adjusted by weighing accuracy and operation efficiency), the simple external rectangle of the polygon after each degree of rotation is calculated, and the area, vertex coordinates and the degree of rotation at the moment of the simple external rectangle are recorded. As shown in fig. 2.
Comparing all simple circumscribed rectangles obtained by rotating the original polygon in the rotating process to obtain a simple circumscribed rectangle with the smallest area, and recording the vertex coordinates and the rotating angles of the simple circumscribed rectangle with the smallest area;
and rotating the obtained simple circumscribed rectangle with the smallest area by the same angle according to the direction opposite to the set direction to obtain the smallest circumscribed rectangle, wherein the same angle is the rotating angle of the simple circumscribed rectangle with the smallest area.
Traversing-90 deg. is time consuming in a particular embodiment, with an edge co-linear with the edge of the original polygon for a circumscribed rectangle of the polygon. The possible range of rectangles is limited. It is not necessary to detect all possible directions, only the same direction as the polygon side length angle.
Optionally, the rotating in the set angle range to obtain a rotated original polygon, and obtaining a simple circumscribed rectangle of the rotated polygon after each degree includes:
the area, vertex coordinates and degree of rotation of the simple circumscribed rectangle are recorded.
Optionally, the coordinate affine transformation based on the minimum bounding rectangle transforms the real estate IFC model into a geographic coordinate system where the building vector boundary is located, including:
and selecting the starting points of the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle of the house property IFC model, and taking the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle point of the house property IFC model as reference control points of coordinate affine in the clockwise direction to carry out coordinate affine transformation.
Optionally, selecting a starting point of a minimum bounding rectangle of the building boundary bounding rectangle and a minimum bounding rectangle of the house property IFC model includes:
and respectively selecting the corner point of the left lower corner of the minimum circumscribed rectangle of the building boundary and the corner point of the left lower corner of the minimum circumscribed rectangle of the house property IFC model as starting points. As shown in fig. 3.
As shown in fig. 4, this embodiment further discloses an automatic coordinate registration device for a house property IFC model and a building vector boundary, including: the relation module is used for establishing a corresponding relation between the building boundary data and the house property IFC model;
the acquisition module is used for acquiring a minimum circumscribed rectangle of the building boundary and the house property IFC model plane range based on the corresponding relation;
and the transformation module is used for carrying out coordinate affine transformation based on the minimum circumscribed rectangle and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is positioned.
Optionally, the building the correspondence between the building boundary data and the house property IFC model includes:
and establishing a corresponding relation based on the building ID.
Optionally, the obtaining the minimum circumscribed rectangle of the building boundary and the room property IFC model plane range based on the correspondence includes:
the coordinate points rotate according to the set direction and the set angle by taking the set coordinate points as reference points to obtain new coordinate points;
rotating within a set angle range to obtain a rotating original polygon, solving a simple external rectangle of the polygon rotated by each degree, and recording the rotation degree of the simple external rectangle;
comparing all simple circumscribed rectangles obtained by rotating the original polygon in the rotating process to obtain a simple circumscribed rectangle with the smallest area, and recording the vertex coordinates and the rotating angles of the simple circumscribed rectangle with the smallest area;
and rotating the obtained simple circumscribed rectangle with the smallest area by the same angle according to the direction opposite to the set direction to obtain the smallest circumscribed rectangle, wherein the same angle is the rotating angle of the simple circumscribed rectangle with the smallest area.
Optionally, the rotating in the set angle range to obtain a rotated original polygon, and obtaining a simple circumscribed rectangle of the rotated polygon after each degree includes:
the area, vertex coordinates and degree of rotation of the simple circumscribed rectangle are recorded.
Optionally, the coordinate affine transformation based on the minimum bounding rectangle transforms the real estate IFC model into a geographic coordinate system where the building vector boundary is located, including:
and selecting the starting points of the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle of the house property IFC model, and taking the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle point of the house property IFC model as reference control points of coordinate affine in the clockwise direction to carry out coordinate affine transformation.
Optionally, selecting a starting point of a minimum bounding rectangle of the building boundary bounding rectangle and a minimum bounding rectangle of the house property IFC model includes:
and respectively selecting the corner point of the left lower corner of the minimum circumscribed rectangle of the building boundary and the corner point of the left lower corner of the minimum circumscribed rectangle of the house property IFC model as starting points.
The detailed description of the present embodiment may refer to the corresponding description in the foregoing embodiments, and will not be repeated herein.
The electronic device disclosed in the embodiment includes a memory and a processor. The memory is for storing non-transitory computer readable instructions. In particular, the memory may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM) and/or cache memory (cache), and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like.
The processor may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities, and may control other components in the electronic device to perform the desired functions. In one embodiment of the present disclosure, the processor is configured to execute the computer readable instructions stored in the memory to cause the electronic device to perform all or part of the steps of the method for automatic coordinate registration of a property IFC model with a building vector boundary of the embodiments of the present disclosure described above.
It should be understood by those skilled in the art that, in order to solve the technical problem of how to obtain a good user experience effect, the present embodiment may also include well-known structures such as a communication bus, an interface, and the like, and these well-known structures are also included in the protection scope of the present disclosure.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure. A schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure is shown. The electronic device shown in fig. 5 is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.
As shown in fig. 5, the electronic device may include a processing means (e.g., a central processing unit, a graphic processor, etc.) that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) or a program loaded from a storage means into a Random Access Memory (RAM). In the RAM, various programs and data required for the operation of the electronic device are also stored. The processing device, ROM and RAM are connected to each other via a bus. An input/output (I/O) interface is also connected to the bus.
In general, the following devices may be connected to the I/O interface: input means including, for example, sensors or visual information gathering devices; output devices including, for example, display screens and the like; storage devices including, for example, magnetic tape, hard disk, etc.; a communication device. The communication means may allow the electronic device to communicate wirelessly or by wire with other devices, such as edge computing devices, to exchange data. While fig. 5 shows an electronic device having various means, it is to be understood that not all of the illustrated means are required to be implemented or provided. More or fewer devices may be implemented or provided instead.
In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a non-transitory computer readable medium, the computer program comprising program code for performing the method shown in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from ROM. All or part of the steps of the house property IFC model and building vector boundary automatic coordinate registration method of embodiments of the present disclosure are performed when the computer program is executed by the processing device.
The detailed description of the present embodiment may refer to the corresponding description in the foregoing embodiments, and will not be repeated herein.
A computer-readable storage medium according to an embodiment of the present disclosure has stored thereon non-transitory computer-readable instructions. When executed by a processor, perform all or part of the steps of the house property IFC model and building vector boundary automatic coordinate registration method of the various embodiments of the disclosure described previously.
The computer-readable storage medium described above includes, but is not limited to: optical storage media (e.g., CD-ROM and DVD), magneto-optical storage media (e.g., MO), magnetic storage media (e.g., magnetic tape or removable hard disk), media with built-in rewritable non-volatile memory (e.g., memory card), and media with built-in ROM (e.g., ROM cartridge).
The detailed description of the present embodiment may refer to the corresponding description in the foregoing embodiments, and will not be repeated herein.
The basic principles of the present disclosure have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present disclosure are merely examples and not limiting, and these advantages, benefits, effects, etc. are not to be considered as necessarily possessed by the various embodiments of the present disclosure. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, since the disclosure is not necessarily limited to practice with the specific details described.
In this disclosure, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the block diagrams of devices, apparatuses, devices, systems involved in this disclosure are merely illustrative examples and are not intended to require or implicate that connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
In addition, as used herein, the use of "or" in the recitation of items beginning with "at least one" indicates a separate recitation, such that recitation of "at least one of A, B or C" for example means a or B or C, or AB or AC or BC, or ABC (i.e., a and B and C). Furthermore, the term "exemplary" does not mean that the described example is preferred or better than other examples.
It is also noted that in the systems and methods of the present disclosure, components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered equivalent to the present disclosure.
Various changes, substitutions, and alterations are possible to the techniques described herein without departing from the teachings of the techniques defined by the appended claims. Furthermore, the scope of the claims of the present disclosure is not limited to the particular aspects of the process, machine, manufacture, composition of matter, means, methods and acts described above. The processes, machines, manufacture, compositions of matter, means, methods, or acts, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or acts.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the disclosure to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (10)
1. An automatic coordinate registration method for a house property IFC model and a building vector boundary is characterized by comprising the following steps:
building a corresponding relation between building boundary data and a house property IFC model;
acquiring a minimum circumscribed rectangle of a building boundary and a house property IFC model plane range based on the corresponding relation;
and carrying out coordinate affine transformation based on the minimum circumscribed rectangle, and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is located.
2. The method for automatically registering a property IFC model and a building vector boundary according to claim 1, wherein the establishing a correspondence between building boundary data and the property IFC model comprises:
and establishing a corresponding relation based on the building ID.
3. The method for automatically registering a building vector boundary with a building IFC model according to claim 1, wherein the obtaining a minimum bounding rectangle of a building boundary and a building IFC model plane range based on the correspondence relation comprises:
the coordinate points rotate according to the set direction and the set angle by taking the set coordinate points as reference points to obtain new coordinate points;
rotating within a set angle range to obtain a rotating original polygon, solving a simple external rectangle of the polygon rotated by each degree, and recording the rotation degree of the simple external rectangle;
comparing all simple circumscribed rectangles obtained by rotating the original polygon in the rotating process to obtain a simple circumscribed rectangle with the smallest area, and recording the vertex coordinates and the rotating angles of the simple circumscribed rectangle with the smallest area;
and rotating the obtained simple circumscribed rectangle with the smallest area by the same angle according to the direction opposite to the set direction to obtain the smallest circumscribed rectangle, wherein the same angle is the rotating angle of the simple circumscribed rectangle with the smallest area.
4. The method for automatically registering the coordinates of the boundary between the IFC model of the real estate and the building vector according to claim 3, wherein the rotating within the set angle range obtains the original rotated polygon, and the simple circumscribing rectangle of the rotated polygon after each degree is obtained, comprising:
the area, vertex coordinates and degree of rotation of the simple circumscribed rectangle are recorded.
5. The method for automatically registering a property IFC model and a building vector boundary according to claim 1, wherein the transforming the property IFC model into a geographic coordinate system in which the building vector boundary is located by performing coordinate affine transformation based on a minimum bounding rectangle comprises:
and selecting the starting points of the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle of the house property IFC model, and taking the minimum circumscribed rectangle of the building boundary and the minimum circumscribed rectangle point of the house property IFC model as reference control points of coordinate affine in the clockwise direction to carry out coordinate affine transformation.
6. The method of automatic coordinate registration of a property IFC model and a building vector boundary of claim 5, wherein selecting a starting point for a minimum bounding rectangle of the building boundary bounding rectangle and a minimum bounding rectangle of the property IFC model comprises:
and respectively selecting the corner point of the left lower corner of the minimum circumscribed rectangle of the building boundary and the corner point of the left lower corner of the minimum circumscribed rectangle of the house property IFC model as starting points.
7. An automatic coordinate registration device for a house property IFC model and a building vector boundary, comprising:
the relation module is used for establishing a corresponding relation between the building boundary data and the house property IFC model;
the acquisition module is used for acquiring a minimum circumscribed rectangle of the building boundary and the house property IFC model plane range based on the corresponding relation;
and the transformation module is used for carrying out coordinate affine transformation based on the minimum circumscribed rectangle and transforming the house property IFC model into a geographic coordinate system where the building vector boundary is positioned.
8. The apparatus for automatically registering a building vector boundary with a building IFC model according to claim 7, wherein the acquiring a minimum bounding rectangle of a building boundary and a building IFC model plane range based on the correspondence relation comprises:
the coordinate points rotate according to the set direction and the set angle by taking the set coordinate points as reference points to obtain new coordinate points;
rotating within a set angle range to obtain a rotating original polygon, solving a simple external rectangle of the polygon rotated by each degree, and recording the rotation degree of the simple external rectangle;
comparing all simple circumscribed rectangles obtained by rotating the original polygon in the rotating process to obtain a simple circumscribed rectangle with the smallest area, and recording the vertex coordinates and the rotating angles of the simple circumscribed rectangle with the smallest area;
and rotating the obtained simple circumscribed rectangle with the smallest area by the same angle according to the direction opposite to the set direction to obtain the smallest circumscribed rectangle, wherein the same angle is the rotating angle of the simple circumscribed rectangle with the smallest area.
9. An electronic device, the electronic device comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the house property IFC model and building vector boundary automatic coordinate registration method of any one of claims 1-6.
10. A computer readable storage medium storing computer instructions for causing a computer to perform the method of automatic co-ordinate registering of a property IFC model with a building vector boundary as claimed in any one of claims 1 to 6.
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| CN116664455A (en) * | 2023-08-01 | 2023-08-29 | 武汉天恒信息技术有限公司 | Method for processing boundary non-conforming between two-dimensional vector graphics |
| CN116664455B (en) * | 2023-08-01 | 2023-11-14 | 武汉天恒信息技术有限公司 | Method for processing boundary non-conforming between two-dimensional vector graphics |
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