CN117274500B - Method for building house by building boundary point coordinates - Google Patents
Method for building house by building boundary point coordinates Download PDFInfo
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- CN117274500B CN117274500B CN202311438768.2A CN202311438768A CN117274500B CN 117274500 B CN117274500 B CN 117274500B CN 202311438768 A CN202311438768 A CN 202311438768A CN 117274500 B CN117274500 B CN 117274500B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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- G06F16/29—Geographical information databases
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/41—User authentication where a single sign-on provides access to a plurality of computers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
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- G06T2207/30181—Earth observation
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Abstract
The invention provides a house construction method through a building boundary point coordinate, which comprises the following steps: s1, acquiring building boundary point coordinate data, and generating a house contour according to the building boundary point coordinate data; s2, acquiring house information according to the house outline in the step S1. The method and the device can obtain the data information of the house according to the uploaded building boundary point coordinate data, and ensure the safety of three-dimensional cadastral data in the uploading process.
Description
Technical Field
The invention relates to the technical field of cadastral information, in particular to a house construction method through building boundary point coordinates.
Background
A building is an artificial, fixed object relative to the ground. Patent application number 202310683604X, entitled "a method, apparatus, system, and medium for classifying and extracting a destination boundary line", discloses that boundary line data is first acquired, and the acquired boundary line is classified to obtain a house boundary line and a destination boundary line corresponding to the house boundary line, wherein the house boundary line and the destination boundary line include boundary points and the sequence of boundary points; deleting repeated boundary points in the house boundary line and the house boundary line, updating the boundary points and generating a house boundary line and a house boundary line according to the sequence of the boundary points; and finally, correcting the position of the house boundary line according to the position relationship between the house boundary line and the house base boundary line. The patent application of the invention does not give house information.
Disclosure of Invention
The invention aims at least solving the technical problems in the prior art, and particularly creatively provides a house construction method through building boundary point coordinates.
In order to achieve the above object of the present invention, the present invention provides a house construction method by building boundary point coordinates, comprising the steps of:
s1, acquiring building boundary point coordinate data, and generating a house contour according to the building boundary point coordinate data;
s2, acquiring house information according to the house outline in the step S1.
In a preferred embodiment of the invention, the method for generating a house contour from building boundary point coordinate data in step S1 comprises the following steps:
s1-1, arranging coordinates of building boundary points in the coordinate data of the building boundary points in sequence from a starting point to an end point or from the end point to the starting point, wherein the coordinates are respectively (x) 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) Wherein (x) 1 ,y 1 ,z 1 ) Representing the 1 st coordinates of a building boundary point, (x) 2 ,y 2 ,z 2 ) Representing the 2 nd coordinates of the building boundary point, (x) 3 ,y 3 ,z 3 ) Representing the 3 rd coordinates of a building boundary point, (x) ζ ,y ζ ,z ζ ) Zeta represents the number of building boundary point coordinates in the building boundary point coordinate data; when it sequentially arranges the building boundary point coordinates in the building boundary point coordinate data in order of starting point to ending point, (x) 1 ,y 1 ,z 1 ) Also representing the building boundary point starting point coordinates, (x) ζ ,y ζ Zζ) also represents the building boundary point endpoint coordinates; when it sequentially arranges the building boundary point coordinates in the building boundary point coordinate data in the order of end point to start point, (x) 1 ,y 1 ,z 1 ) Also representing building boundary point endpoint coordinates, (x) ζ ,y ζ ,z ζ ) Also representing building boundary point starting point coordinates;
s1-2, coordinates (x) of the building boundary point in step S1-1 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) Marking on a three-dimensional map;
s1-3, according to the coordinates (x) 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) And connecting the marking points in turn to obtain the house outline.
In a preferred embodiment of the invention, the house information comprises a house floor area or/and a house perimeter in step S1.
In a preferred embodiment of the invention, the method for calculating the floor area of the house comprises the following steps:
s2-1, converting the three-dimensional coordinates into two-dimensional coordinates, and converting the three-dimensional coordinates into the two-dimensional coordinates by the following steps:
wherein,representing the building boundary point->Coordinates; />2、3、……、ζ；
Representing a three-dimensional to two-dimensional projection symbol;
two-dimensional +.about.representing building boundary point>Coordinates;
namely, the method comprises the following steps: (x) 1 ,y 1 ,z 1 )→(x 1 ,y 1 )，(x 1 ,y 1 ) A two-dimensional 1 st coordinate representing a building access point;
(x 2 ,y 2 ,z 2 )→(x 2 ,y 2 )，(x 2 ,y 2 ) A two-dimensional 2 nd coordinate representing a building access point;
(x 3 ,y 3 ,z 3 )→(x 3 ,y 3 )，(x 3 ,y 3 ) A two-dimensional 3 rd coordinate representing a building access point;
……；
(x ζ ,y ζ ,z ζ )→(x ζ ,y ζ )，(x ζ ,y ζ ) A two-dimensional zeta coordinate representing a building access point;
s2-2, at any point in the house contour line, denoted as (x) 0 ,y 0 )，(x 0 ,y 0 ) Representing any point within the house contour line;
s2-3, according to any point (x 0 ,y 0 ) And ζ two-dimensional coordinates to obtain a house area, wherein the house floor area algorithm is as follows:
wherein S represents the floor space of the house;
ζ represents the number of building boundary point coordinates in the building boundary point coordinate data;
||a i i represents the two-dimensional i-th coordinate (x i ,y i ) And (x) 0 ,y 0 ) A straight line a formed between i Distance value of (2);
||a i+1 i represents the two-dimensional i+1 coordinate (x i+1 ,y i+1 ) And (x) 0 ,y 0 ) A straight line a formed between i+1 Distance value of (2);
<a i ,a i+1 >representing straight line a i From straight line a i+1 An included angle between the two;<a i ,a i+1 >∈[0,π]；
wherein, ||a i,i+1 I represents the two-dimensional i-th coordinate (x i ,y i ) Two-dimensional i+1 coordinates (x i+1 ,y i+1 ) A distance value between the straight lines formed therebetween;
in a preferred embodiment of the invention, the calculation method of the house floor circumference is as follows:
s2-1, converting the three-dimensional coordinates into two-dimensional coordinates, and converting the three-dimensional coordinates into the two-dimensional coordinates by the following steps:
wherein,representing the building boundary point->Coordinates; />2、3、……、ζ；
Representing a three-dimensional to two-dimensional projection symbol;
two-dimensional +.about.representing building boundary point>Coordinates;
namely, the method comprises the following steps: (x) 1 ,y 1 ,z 1 )→(x 1 ,y 1 )，(x 1 ,y 1 ) A two-dimensional 1 st coordinate representing a building access point;
(x 2 ,y 2 ,z 2 )→(x 2 ,y 2 )，(x 2 ,y 2 ) A two-dimensional 2 nd coordinate representing a building access point;
(x 3 ,y 3 ,z 3 )→(x 3 ,y 3 )，(x 3 ,y 3 ) A two-dimensional 3 rd coordinate representing a building access point;
……；
(x ζ ,y ζ ,z ζ )→(x ζ ,y ζ )，(x ζ ,y ζ ) A two-dimensional zeta coordinate representing a building access point;
s2-2, obtaining the perimeter of the house according to zeta two-dimensional coordinates on the outline of the house, wherein the algorithm of the perimeter of the house occupied by the house is as follows:
wherein L represents a house circumference;
ζ represents the number of building boundary point coordinates in the building boundary point coordinate data;
||a i,i+1 i represents the two-dimensional i-th coordinate (x i ,y i ) Two-dimensional i+1 coordinates (x i+1 ,y i+1 ) The distance between the straight lines formed therebetween.
In a preferred embodiment of the invention, the method for acquiring the coordinates of the building boundary point in step S1 comprises the following steps:
s11, using an office computer provided by a workplace to enter a three-dimensional cadastre interface;
and S12, uploading the coordinate data of the building address point to be uploaded to a three-dimensional cadastre management platform at the three-dimensional cadastre interface.
In summary, by adopting the technical scheme, the invention can obtain the data information of the house according to the uploaded building boundary point coordinate data, and ensure the safety of three-dimensional cadastral data in the uploading process.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
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The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic block diagram of a flow of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The invention provides a house construction method through a building boundary point coordinate, which is shown in figure 1 and comprises the following steps:
s1, acquiring building boundary point coordinate data, and generating a house contour according to the building boundary point coordinate data;
s2, acquiring house information according to the house outline in the step S1.
In a preferred embodiment of the invention, the method for generating a house contour from building boundary point coordinate data in step S1 comprises the following steps:
s1-1, arranging coordinates of building boundary points in the coordinate data of the building boundary points in sequence from a starting point to an end point or from the end point to the starting point, wherein the coordinates are respectively (x) 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) Wherein (x) 1 ,y 1 ,z 1 ) Representing the 1 st coordinates of a building boundary point, (x) 2 ,y 2 ,z 2 ) Representing the 2 nd coordinates of the building boundary point, (x) 3 ,y 3 ,z 3 ) Representing the 3 rd coordinates of a building boundary point, (x) ζ ,y ζ ,z ζ ) Zeta represents the number of building boundary point coordinates in the building boundary point coordinate data; when it sequentially arranges the building boundary point coordinates in the building boundary point coordinate data in order of starting point to ending point, (x) 1 ,y 1 ,z 1 ) Also representing the building boundary point starting point coordinates, (x) ζ ,y ζ ,z ζ ) Also representing building boundary point endpoint coordinates; when it sequentially arranges the building boundary point coordinates in the building boundary point coordinate data in the order of end point to start point, (x) 1 ,y 1 ,z 1 ) Also representing building boundary point endpoint coordinates, (x) ζ ,y ζ ,z ζ ) Also representing building boundary point starting point coordinates;
s1-2, coordinates (x) of the building boundary point in step S1-1 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) Marking on a three-dimensional map;
s1-3, according to the coordinates (x) 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) And connecting the marking points in turn to obtain the house outline.
In a preferred embodiment of the invention, the house information comprises a house floor area or/and a house perimeter in step S1.
In a preferred embodiment of the invention, the method for calculating the floor area of the house comprises the following steps:
s2-1, converting the three-dimensional coordinates into two-dimensional coordinates, and converting the three-dimensional coordinates into the two-dimensional coordinates by the following steps:
wherein,representing the building boundary point->Coordinates; />2、3、……、ζ；
Representing a three-dimensional to two-dimensional projection symbol;
two-dimensional +.about.representing building boundary point>Coordinates;
namely, the method comprises the following steps: (x) 1 ,y 1 ,z 1 )→(x 1 ,y 1 )，(x 1 ,y 1 ) A two-dimensional 1 st coordinate representing a building access point;
(x 2 ,y 2 ,z 2 )→(x 2 ,y 2 )，(x 2 ,y 2 ) A two-dimensional 2 nd coordinate representing a building access point;
(x 3 ,y 3 ,z 3 )→(x 3 ,y 3 )，(x 3 ,y 3 ) A two-dimensional 3 rd coordinate representing a building access point;
……；
(x ζ ,y ζ ,z ζ )→(x ζ ,y ζ )，(x ζ ,y ζ ) A two-dimensional zeta coordinate representing a building access point;
s2-2, at any point in the house contour line, denoted as (x) 0 ,y 0 )，(x 0 ,y 0 ) Representing any point within the house contour line;
s2-3, according to any point (x 0 ,y 0 ) And ζ two-dimensional coordinates to obtain a house area, wherein the house floor area algorithm is as follows:
wherein S represents the floor space of the house;
ζ represents the number of building boundary point coordinates in the building boundary point coordinate data;
||a i i represents the two-dimensional i-th coordinate (x i ,y i ) And (x) 0 ,y 0 ) A straight line a formed between i Distance value of (2);
||a i+1 i represents the two-dimensional i+1 coordinate (x i+1 ,y i+1 ) And (x) 0 ,y 0 ) A straight line a formed between i+1 Distance value of (2);
<a i ,a i+1 >representing straight line a i From straight line a i+1 An included angle between the two;<a i ,a i+1 >∈[0,π]；
wherein, ||a i,i+1 I represents the two-dimensional i-th coordinate (x i ,y i ) Two-dimensional i+1 coordinates (x i+1 ,y i+1 ) A distance value between the straight lines formed therebetween;
in a preferred embodiment of the invention, the calculation method of the house floor circumference is as follows:
s2-1, converting the three-dimensional coordinates into two-dimensional coordinates, and converting the three-dimensional coordinates into the two-dimensional coordinates by the following steps:
wherein,representing the building boundary point->Coordinates; />2、3、……、ζ；
Representing a three-dimensional to two-dimensional projection symbol;
two-dimensional +.about.representing building boundary point>Coordinates;
namely, the method comprises the following steps: (x) 1 ,y 1 ,z 1 )→(x 1 ,y 1 )，(x 1 ,y 1 ) A two-dimensional 1 st coordinate representing a building access point;
(x 2 ,y 2 ,z 2 )→(x 2 ,y 2 )，(x 2 ,y 2 ) A two-dimensional 2 nd coordinate representing a building access point;
(x 3 ,y 3 ,z 3 )→(x 3 ,y 3 )，(x 3 ,y 3 ) A two-dimensional 3 rd coordinate representing a building access point;
……；
(x ζ ,y ζ ,z ζ )→(x ζ ,y ζ )，(x ζ ,y ζ ) A two-dimensional zeta coordinate representing a building access point;
s2-2, obtaining the perimeter of the house according to zeta two-dimensional coordinates on the outline of the house, wherein the algorithm of the perimeter of the house occupied by the house is as follows:
wherein L represents a house circumference;
ζ represents the number of building boundary point coordinates in the building boundary point coordinate data;
||a i,i+1 i represents the two-dimensional i-th coordinate (x i ,y i ) Two-dimensional i+1 coordinates (x i+1 ,y i+1 ) The distance between the straight lines formed therebetween.
In a preferred embodiment of the present invention, the method of classifying buildings according to the height of the buildings in step S2 further comprises the steps of:
s2-1, extracting all coordinate points from the three-dimensional cadastral data, respectively (X) 1 ,Y 1 ,Z 1 )、(X 2 ,Y 2 ,Z 2 )、(X 3 ,Y 3 ,Z 3 )、……、(X K ,Y K ,Z K ) K represents the number of coordinate points in the three-dimensional cadastral data, (X) 1 ,Y 1 ,Z 1 ) Representing the 1 st coordinate point in three-dimensional cadastral data, (X) 2 ,Y 2 ,Z 2 ) Representing the 2 nd coordinate point in the three-dimensional cadastral data, (X) 3 ,Y 3 ,Z 3 ) Representation three3 rd coordinate point in the Vicada data, (X) K ,Y K ,Z K ) Representing a K coordinate point in the three-dimensional cadastral data; let k=1;
s2-2, determining a coordinate point (X k ,Y k ,Z k ) Whether or not it exists in the three-dimensional cadastral database:
if coordinate point (X) k ,Y k ,Z k ) Exists in the three-dimensional cadastral database, the coordinate point (X k ,Y k ,Z k ) Upper limit coordinate point (X) max,k ,Y max,k ,Z max,k ) And a lower limit coordinate point (X min,k ,Y min,k ,Z min,k ) The method comprises the steps of carrying out a first treatment on the surface of the Obtaining building height according to the upper and lower limit coordinate points, and further judging the type of the uploaded three-dimensional cadastral data building; executing the next step;
if coordinate point (X) k ,Y k ,Z k ) If the data do not exist in the three-dimensional cadastral database, executing the next step;
s2-3, judging the size relation between K and K:
if K is more than K, ending;
if K is less than or equal to K, executing step S2-2.
In a preferred embodiment of the present invention, the following steps are included in step S2-2:
s2-2-1, calculating the building height, wherein the building height calculating method comprises the following steps:
there are constraints: x is X min,k ＝X max,k ，Y min,k ＝Y max,k ；
Wherein H represents a building height value;
(X max,k ,Y max,k ,Z max,k ) Representing an upper limit coordinate point of a building;
(X min,k ,Y min,k ,Z min,k ) Representing a lower limit coordinate point;
the absolute value is taken;
s2-2-2, judgment H, H 1 、H 2 、H 3 Relationship between:
if H is less than or equal to H 1 The building is a single-storey building;
if H 1 ＜H≤H 2 The building is a multi-story building;
if H 2 ＜H≤H 3 The building is a high-rise building;
if H is less than or equal to H 3 The building is a super high-rise building;
h represents a building height value;
H 1 representing a preset first height threshold;
H 2 representing a preset second height threshold;
H 3 representing a preset third height threshold; constraint conditions: h 3 ＞H 2 ＞H 3 。
Generally, a single-storey building is a building with a height below 7 m; the multi-storey building is 7-27 m building; the high-rise building is a 27-100 m building; super high-rise building: building of over 100 meters.
In a preferred embodiment of the invention, the method for acquiring the coordinates of the building boundary point in step S1 comprises the following steps:
s11, using an office computer provided by a workplace to enter a three-dimensional cadastre interface;
and S12, uploading the coordinate data of the building address point to be uploaded to a three-dimensional cadastre management platform at the three-dimensional cadastre interface.
In a preferred embodiment of the present invention, the method for entering a three-dimensional cadastre interface using an office computer provided at a workplace in step S11 includes the steps of:
s111, inputting a website in a browser address bar, and entering a three-dimensional cadastre login interface after inputting the website in the browser address bar;
s112, respectively inputting an account number and a password in an account number input box and a password input box of the login interface, respectively inputting the account number and the password in the account number input box and the password input box of the login interface, and then obtaining the account number and the password respectively input in the account number input box and the password input box of the login interface;
s113, performing account password processing on the acquired account and password, and transmitting the processed account and password to a three-dimensional cadastral management platform for verification after performing the account password processing on the account and password.
In a preferred embodiment of the present invention, the following steps are included in step S113:
s1131, the office computer judges whether a login request trigger signal is received:
if a login request trigger signal is received, executing the next step;
if the login request trigger signal is not received, continuing to wait, and executing step S1131;
s1132, the office computer acquires the link mark and the key;
s1133, the office computer respectively encrypts the account number and the password according to the key, and obtains a safe account number and a safe password after processing; transmitting the secured account number, the secured password and the link mark to a three-dimensional cadastre management platform;
s1134, after receiving the safe account number, the safe password and the link mark sent by the office computer, the three-dimensional cadastral management platform acquires a key corresponding to the link mark from the search database through the link mark;
s1135, the three-dimensional cadastre management platform decrypts the safe account number and the safe password according to the key obtained in the step S1134, and obtains the account number and the password after the decryption; after the verification is passed, the office computer successfully logs in the three-dimensional cadastre management platform.
In a preferred embodiment of the present invention, the method for successfully logging in the three-dimensional cadastre management platform by the office computer in step S1135 includes the following steps:
s11351, inquiring whether the account exists on the three-dimensional cadastre management platform or not by using the account obtained through processing in the step S1135:
if the account number obtained after the processing in step S1135 is found to exist on the three-dimensional cadastral management platform, executing the next step;
if the account number obtained after the processing in step S1135 is not found on the three-dimensional cadastral management platform, the office computer is unsuccessful in logging in the three-dimensional cadastral management platform;
s11352, inquiring whether the password obtained by processing in the step S1135 is consistent with the password corresponding to the account on the three-dimensional cadastral management platform by using the account obtained by processing in the step S1135:
if the password obtained by processing in the step S1135 is consistent with the password corresponding to the account number on the three-dimensional cadastral management platform by using the account number obtained by processing in the step S1135, the office computer successfully logs in the three-dimensional cadastral management platform;
if the password obtained by processing in step S1135 is inconsistent with the password corresponding to the account number on the three-dimensional cadastral management platform by using the account number obtained by processing in step S1135, the office computer login to the three-dimensional cadastral management platform is unsuccessful.
In a preferred embodiment of the present invention, the method for obtaining the link flag and key in step S1132 includes the steps of:
s11321, the office computer requests a public key from the three-dimensional cadastral management platform, at least one pair of public and private pairs is stored on the three-dimensional cadastral management platform, and each public and private pair comprises a public key (the public key is an asymmetric public key) and a private key (the private key is an asymmetric private key);
s11322, after receiving the public key request sent by the office computer, the three-dimensional cadastre management platform sends the public key to the office computer;
s11323, after the office computer receives the public key sent by the three-dimensional cadastre management platform, the office computer generates a key (the key is a symmetric key) and stores the generated key on the office computer;
s11324, encrypting the key through the public key, obtaining a security key of the key after the encryption, and sending the security key to the three-dimensional cadastre management platform;
s11325, after receiving the security key sent by the office computer, the three-dimensional cadastre management platform decrypts the received security key through the private key to obtain the key, and meanwhile, a link mark is generated;
s11326, forming a search pair by the link mark and the key and storing the search pair in a search database; the link mark is encrypted through a key, a safe link mark is obtained after the encryption, and the safe link mark is sent to an office computer;
s11327, after the office computer receives the safe link mark sent by the three-dimensional cadastre management platform, decrypting the received safe link mark through a key, obtaining the link mark after the decryption, and storing the link mark on the office computer.
In a preferred embodiment of the present invention, the method for uploading the coordinate data of the building boundary point to be uploaded to the three-dimensional cadastre management platform in step S12 is as follows:
s121, carrying out cadastral number calculation on the building boundary point coordinate data to be uploaded to obtain cadastral numbers;
s122, acquiring a link mark and a key, and encrypting the building boundary point coordinate data to be uploaded by utilizing the acquired key, so as to obtain building boundary point coordinate safety data to be uploaded after the encryption;
s123, uploading the building boundary point coordinate safety data to be uploaded, the link mark and the cadastral number to a three-dimensional cadastral management platform;
s124, after receiving the building boundary point coordinate safety data, the link mark and the cadastral number sent by the computer, the three-dimensional cadastral management platform acquires a key corresponding to the link mark from the search database through the link mark;
s125, the three-dimensional cadastre management platform decrypts the building boundary point coordinate safety data according to the key obtained in the step S124, and obtains the building boundary point coordinate data after the decryption;
s126, carrying out platform cadastral number calculation on the building boundary point coordinate data obtained in the step S125 to obtain a platform cadastral number; judging whether the platfonn number is consistent with the cadastral number in step S123:
if the platfonn number is consistent with the cadastre number in the step S123, the building boundary point coordinate data obtained in the step S125 is the building boundary point coordinate data to be uploaded in one of the steps S121 to S123; at the moment, the three-dimensional cadastre management platform obtains coordinate data of a building boundary point to be uploaded;
if the platfonn number is inconsistent with the cadastre number in step S123, the computer is re-requested to send the building address point coordinate data to be uploaded in one of steps S121 to S123, and step S121 is executed.
In a preferred embodiment of the present invention, the cadastral number calculation method in step S121 is as follows:
Boundariescode＝Boundariescodecalculationway<Boundariesdata>，
wherein, boundariescode represents that the cadastral number is calculated on the coordinate data of the building address point to be uploaded, and the cadastral number is obtained;
boundriescode calculation routing </SUB > represents a cadastral calculation method; preferably adopting an MD5 digest calculation method;
boundariesdata represents building boundary point coordinate data to be uploaded;
in step S126, the calculation method of the platfonn number includes:
BoundariesPlatformcode＝BoundariesPlatformcodecalculationway<PlatformBoundariesdata>，
wherein, boundariesPlatform code represents the platform cadastral number obtained by carrying out platform cadastral number calculation on the building boundary point coordinate data obtained in the step S125;
BoundariesPlatformcodecuationway represents a platform cadastral calculation method; preferably adopting an MD5 digest calculation method;
platform Boundariesdata represents the building boundary point coordinate data in step S125.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. A method of building a building from building boundary point coordinates comprising the steps of:
s1, acquiring building boundary point coordinate data, and generating a house contour according to the building boundary point coordinate data;
s2, acquiring house information according to the house outline in the step S1, wherein the house information comprises house occupation area, and the house occupation area calculating method comprises the following steps:
s2-1, converting the three-dimensional coordinates into two-dimensional coordinates, and converting the three-dimensional coordinates into the two-dimensional coordinates by the following steps:
wherein,representing the building boundary point->Coordinates; />
Representing a three-dimensional to two-dimensional projection symbol;
two-dimensional +.about.representing building boundary point>Coordinates;
namely, the method comprises the following steps: (x) 1 ,y 1 ,z 1 )→(x 1 ,y 1 )，(x 1 ,y 1 ) A two-dimensional 1 st coordinate representing a building access point;
(x 2 ,y 2 ,z 2 )→(x 2 ,y 2 )，(x 2 ,y 2 ) A two-dimensional 2 nd coordinate representing a building access point;
(x 3 ,y 3 ,z 3 )→(x 3 ,y 3 )，(x 3 ,y 3 ) A two-dimensional 3 rd coordinate representing a building access point;
(x ζ ,y ζ ,z ζ )→(x ζ ,y ζ )，(x ζ ,y ζ ) A two-dimensional zeta coordinate representing a building access point;
s2-2, at any point in the house contour line, denoted as (x) 0 ,y 0 )，(x 0 ,y 0 ) Representing any point within the house contour line;
s2-3, according to any point (x 0 ,y 0 ) And ζ two-dimensional coordinates to obtain a house area, wherein the house floor area algorithm is as follows:
wherein S represents the floor space of the house;
ζ represents the number of building boundary point coordinates in the building boundary point coordinate data;
||a i i represents the two-dimensional i-th coordinate (x i ,y i ) And (x) 0 ,y 0 ) A straight line a formed between i Distance value of (2);
||a i+1 i represents the two-dimensional i+1 coordinate (x i+1 ,y i+1 ) And (x) 0 ,y 0 ) A straight line a formed between i+1 Distance value of (2);
<a i ,a i+1 >representing straight line a i From straight line a i+1 An included angle between the two;<a i ,a i+1 >∈[0,π]；
wherein, ||a i,i+1 I represents the two-dimensional i-th coordinate (x i ,y i ) Two-dimensional i+1 coordinates (x i+1 ,y i+1 ) A distance value between the straight lines formed therebetween;
2. the house construction method by building boundary point coordinates according to claim 1, wherein the method of generating a house outline from the building boundary point coordinate data in step S1 comprises the steps of:
s1-1, arranging coordinates of building boundary points in the coordinate data of the building boundary points in sequence from a starting point to an end point or from the end point to the starting point, wherein the coordinates are respectively (x) 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) Wherein (x) 1 ,y 1 ,z 1 ) Representing the 1 st coordinates of a building boundary point, (x) 2 ,y 2 ,z 2 ) Representing the 2 nd coordinates of the building boundary point, (x) 3 ,y 3 ,z 3 ) Representing the 3 rd coordinates of a building boundary point, (x) ζ ,y ζ ,z ζ ) Zeta represents the number of building boundary point coordinates in the building boundary point coordinate data; when it sequentially arranges the building boundary point coordinates in the building boundary point coordinate data in order of starting point to ending point, (x) 1 ,y 1 ,z 1 ) Also representing the building boundary point starting point coordinates, (x) ζ ,y ζ ,z ζ ) Also representing building boundary point endpoint coordinates; when it sequentially arranges the building boundary point coordinates in the building boundary point coordinate data in the order of end point to start point, (x) 1 ,y 1 ,z 1 ) Also representing building boundary point endpoint coordinates, (x) ζ ,y ζ ,z ζ ) Also representing building boundary point starting point coordinates;
s1-2, coordinates (x) of the building boundary point in step S1-1 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) Marking on a three-dimensional map;
s1-3, according to the coordinates (x) 1 ,y 1 ,z 1 )、(x 2 ,y 2 ,z 2 )、(x 3 ,y 3 ,z 3 )、……、(x ζ ,y ζ ,z ζ ) And connecting the marking points in turn to obtain the house contour line.
3. The method of building a house by building boundary point coordinates according to claim 1, wherein the house information further includes a house perimeter in step S2.
4. The method for building a house through building boundary point coordinates according to claim 3, wherein the calculation method of house occupation circumference is:
s2-1, converting the three-dimensional coordinates into two-dimensional coordinates, and converting the three-dimensional coordinates into the two-dimensional coordinates by the following steps:
wherein,representing the building boundary point->Coordinates; />
Representing a three-dimensional to two-dimensional projection symbol;
two-dimensional +.about.representing building boundary point>Coordinates;
namely, the method comprises the following steps: (x) 1 ,y 1 ,z 1 )→(x 1 ,y 1 )，(x 1 ,y 1 ) A two-dimensional 1 st coordinate representing a building access point;
(x 2 ,y 2 ,z 2 )→(x 2 ,y 2 )，(x 2 ,y 2 ) A two-dimensional 2 nd coordinate representing a building access point;
(x 3 ,y 3 ,z 3 )→(x 3 ,y 3 )，(x 3 ,y 3 ) A two-dimensional 3 rd coordinate representing a building access point;
……；
(x ζ ,y ζ ,z ζ )→(x ζ ,y ζ )，(x ζ ,y ζ ) A two-dimensional zeta coordinate representing a building access point;
s2-2, obtaining the perimeter of the house according to zeta two-dimensional coordinates on the outline of the house, wherein the algorithm of the perimeter of the house occupied by the house is as follows:
wherein L represents a house circumference;
ζ represents the number of building boundary point coordinates in the building boundary point coordinate data;
||a i,i+1 i represents the two-dimensional i-th coordinate (x i ,y i ) Two-dimensional i+1 coordinates (x i+1 ,y i+1 ) The distance between the straight lines formed therebetween.
5. The house construction method by building boundary point coordinates according to claim 1, wherein the method of acquiring building boundary point coordinates in step S1 comprises the steps of:
s11, using an office computer provided by a workplace to enter a three-dimensional cadastre interface;
and S12, uploading the coordinate data of the building address point to be uploaded to a three-dimensional cadastre management platform at the three-dimensional cadastre interface.
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