CN115482310A - Room data generation method, device, equipment and medium based on building vector diagram - Google Patents

Abstract

The invention discloses a method, device, device and medium for generating room data based on building vector diagrams. The method includes acquiring building vector diagram data, and obtaining wall linear data according to the building vector diagram data; according to the wall linear data, The preset wall thickness parameters and the maximum length of the door are used to generate door data, and a line data set is constructed based on the door data and wall linear data; the line data set is decomposed into discrete line segments, and point sampling is performed on the discrete line segments to obtain discrete Point set; according to the preset circle diameter and discrete point set, multiple closed contour lines are obtained based on the rolling ball method; the vertices of the closed contour lines are determined according to the effective edges in the closed contour lines; wherein, the effective edges are each closed contour line The side whose middle side is longer than the diameter of the circle; restore according to all vertices to get the room polygon. This method can realize the generation of room data through wall linear data, without the need to analyze accurate door information to fill in the wall interval.

Description

Method, device, equipment and medium for generating room data based on architectural vector diagram

technical field

The present invention relates to the technical field of architectural vector graphics, in particular to a method, device, device and medium for generating room data based on architectural vector graphics.

Background technique

At present, the traditional 3D map room is usually manually drawn polygonal room and converted into 3D stereo data, which will waste a lot of labor costs and take a long time to draw the map, because it is drawn manually, prone to errors. A method for identifying rooms by walls provides the idea of restoring rooms through wall data, but this method needs to analyze accurate door, column, and window information to fill in the wall intervals and obtain closed room polygon data. In general, doors are arc-shaped data, which need to be parsed into walls that fit the surrounding environment to fill the wall data gap, and some areas without doors will be merged into other rooms or aisles. However, it is easy to be affected by corners such as pillars during the room generation process, and it is difficult to obtain seamless structural data, which does not meet actual needs.

Contents of the invention

The present invention provides a method, device, equipment and medium for generating room data based on architectural vector diagrams, so as to realize generating room data through wall linear data without analyzing accurate door information to fill in wall intervals.

In the first aspect, in order to solve the above-mentioned technical problems, the present invention provides a method for generating room data based on architectural vector graphics, including:

Obtaining architectural vector diagram data, and obtaining wall linear data according to the architectural vector diagram data;

Generate door data according to the wall linear data, preset wall thickness parameters and door maximum length, and construct a line data set according to the door data and the wall linear data;

Decomposing the line data set into discrete line segments, performing point sampling on the discrete line segments to obtain a discrete point set;

According to the preset circle diameter and the set of discrete points, multiple closed contour lines are obtained based on the rolling ball method;

Determining the vertices of the closed contour line according to the effective sides in the closed contour line; wherein, the effective side is a side whose side length is greater than the diameter of the circle in each of the closed contour lines;

Reduction is performed based on all said vertices to obtain the room polygon.

Preferably, the door data is generated according to the wall linear data, the preset wall thickness parameters and the maximum door length, and a line data set is constructed according to the door data and the wall linear data, include:

Traversing all sides of the wall linear data, converting each side of the wall linear data into discrete two-point line segments, and storing them in line segment groups;

Traverse the line segment group, select an input line segment within a preset thickness range from the line segment group and search with the input line segment as the center, and obtain all outputs whose distance from the input line segment is within the preset gate width line segment;

Select a target line segment that satisfies the parallel overlapping projection condition with the input line segment and is less than the maximum length of the gate from all the output line segments, generate gate data according to the input line segment and the target line segment, and generate gate data according to the gate data and the wall line data to construct a line data set.

Preferably, the decomposing the line data set into discrete line segments, and performing point sampling on the discrete line segments to obtain a set of discrete points includes:

Splitting the line data set into a set of line segments consisting of two discrete points;

uniform sampling on each line segment in the line segment set according to a preset sampling density to obtain point data;

A set of discrete points is constructed according to all the point data and the first and last two points of each line segment.

Preferably, the determining the vertices of the closed contour line according to the effective edges in the closed contour line includes:

When the number of effective sides in any of the closed contour lines is greater than 3, the closed contour line is determined as a valid polygon;

Performing an extension operation on every two adjacent valid sides in the valid polygon to obtain a valid side extension line;

The intersection of two adjacent effective side extension lines is determined as the vertex of the closed contour line.

Preferably, the method also includes:

When any two room polygons overlap, delete the polygons in the two room polygons that overlap with the wall or door data.

In a second aspect, the present invention provides a device for generating room data based on architectural vector graphics, including:

A data acquisition module, configured to acquire architectural vector diagram data, and obtain wall linear data according to the architectural vector diagram data;

A line set generating module, configured to generate door data according to the wall line data, preset wall thickness parameters and door maximum length, and construct line data according to the door data and the wall line data gather;

A vertex sampling module, configured to decompose the line data set into discrete line segments, and perform point sampling on the discrete line segments to obtain a set of discrete points;

A contour generation module, used to obtain multiple closed contours based on the rolling ball method according to the preset circle diameter and the set of discrete points;

A vertex determination module, configured to determine a vertex of the closed contour line according to an effective side in the closed contour line; wherein, the effective side is a side whose side length is greater than the diameter of the circle in each closed contour line;

The room generation module is used to perform restoration according to all the vertices to obtain the room polygon.

Preferably, the line set generation module includes:

A line segment generating unit, configured to traverse all sides of the wall linear data, convert each side of the wall linear data into discrete two-point line segments, and store them in the line segment group;

The traversal search unit is used to traverse the line segment group, select an input line segment within a preset thickness range from the line segment group and search with the input line segment as the center, and obtain a distance from the input line segment within a preset All output line segments within the gate width;

A line set generating unit, configured to select a target line segment that satisfies the parallel overlapping projection condition with the input line segment and whose distance is smaller than the maximum length of the gate from all the output line segments, and generates gate data according to the input line segment and the target line segment , and construct a line data set according to the door data and the wall line data.

Preferably, the vertex sampling module includes:

An array splitting unit, configured to split the line data set into a line segment set consisting of two discrete points;

A point sampling unit, configured to uniformly sample each line segment in the set of line segments according to a preset sampling density to obtain point data;

The set construction unit constructs a set of discrete points according to all the point data and the first and last points of each line segment.

In a third aspect, the present invention also provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, when the processor executes the computer program Realize the room data generation method based on the building vector diagram described in any one of the above.

In a fourth aspect, the present invention also provides a computer-readable storage medium, the computer-readable storage medium includes a stored computer program, wherein, when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute The method for generating room data based on architectural vector graphics described in any one of the above.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention provides a method for generating room data based on architectural vector diagrams. By acquiring architectural vector diagram data, wall linear data is obtained according to the architectural vector diagram data; according to the wall linear data, the preset wall The body thickness parameter and the maximum length of the door can be optimized by using the short side combined with the spatial data index Rtree to generate a polygonal array of door data, combined with the original wall linear data, to construct a line data set containing door data; The data set is decomposed into discrete line segments, and point sampling is performed on the discrete line segments to obtain a set of discrete points; according to the preset circle diameter and the set of discrete points, multiple closed contour lines are obtained based on the rolling ball method; according to the closed contour The effective sides in the line determine the vertices of the closed contour line; wherein, the effective sides are the sides whose side length is greater than the diameter of the circle in each closed contour line; restore according to all the vertices to obtain the room polygon . The present invention uses alphaShape (rolling ball method) to construct the closed contour line of the room, and restores the room polygon through contour scattered points. The whole process does not need to analyze accurate door information to fill in the wall interval, and is less affected by columns and corners, which is more in line with actual needs.

Description of drawings

Fig. 1 is a schematic flowchart of a room data generation method based on a building vector diagram provided in the first embodiment of the present invention;

Fig. 2 is a schematic diagram of parallel overlapping projection;

Fig. 3 is a schematic diagram of wall linear data;

Fig. 4 is a schematic diagram of line data collection after gate data is generated;

Fig. 5 is a schematic diagram of a set of discrete points;

Fig. 6 is the schematic diagram of the generated closed contour line and its edge point data;

Fig. 7 is an overall schematic diagram of a room polygon;

Fig. 8 is a schematic structural diagram of a device for generating room data based on a building vector diagram according to the second embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to Fig. 1, the first embodiment of the present invention provides a method for generating room data based on a building vector diagram, comprising the following steps:

S11, obtaining architectural vector diagram data, and obtaining wall linear data according to the architectural vector diagram data;

S12. Generate door data according to the wall linear data, preset wall thickness parameters and maximum door length, and construct a line data set according to the door data and the wall linear data;

S13, decomposing the line data set into discrete line segments, and performing point sampling on the discrete line segments to obtain a discrete point set;

S14. According to the preset circle diameter and the set of discrete points, multiple closed contour lines are obtained based on the rolling ball method;

S15. Determine the vertices of the closed contour line according to the effective sides in the closed contour line; wherein, the effective side is a side in each closed contour line whose side length is greater than the diameter of the circle;

S16. Restore according to all the vertices to obtain the polygon of the room.

In step S11, the architectural vector diagram data is obtained, and the wall line data is obtained according to the architectural vector diagram data. The linear data of the wall includes the polygon of the wall or the edge of the polygon of the wall.

It should be noted that the present invention generates room data through the wall. After obtaining the architectural vector diagram data (such as CAD data), the wall data layer can generally directly obtain the wall line data, and some CADs also have wall polygons that have been drawn. At this point, it is necessary to parse the edge data of these polygons. In rare cases, wall data is missing in the architectural vector diagram, and wall edge data needs to be manually drawn.

In step S12, door data is generated according to the wall linear data, the preset wall thickness parameters and the maximum door length, and a line data set is constructed according to the door data and the wall linear data, include:

Traversing all sides of the wall linear data, converting each side of the wall linear data into discrete two-point line segments, and storing them in line segment groups;

Traverse the line segment group, select an input line segment within a preset thickness range from the line segment group and search with the input line segment as the center, and obtain all outputs whose distance from the input line segment is within the preset gate width line segment;

Select a target line segment that satisfies the parallel overlapping projection condition with the input line segment and is less than the maximum length of the gate from all the output line segments, generate gate data according to the input line segment and the target line segment, and generate gate data according to the gate data and the wall line data to construct a line data set.

In practical applications, the maximum length of the door is 0.5 to 5 meters, which can meet the indoor conditions of most CAD drawings. According to different scenarios, the maximum length parameter of the door is 0 meters to 20 meters.

Wherein, the judging process of the parallel overlapping projection condition includes:

When line segment A is parallel to line segment B and the distance between line segment A and line segment B is within the preset wall thickness parameters, and line segment A' obtained after projecting line segment A to the line where line segment B is located intersects and overlaps line segment B, determine line segment A It satisfies the parallel overlapping projection condition with line segment B.

Suppose there are two lines AB, they are defined as parallel overlapping projections if they meet the following conditions:

1) A is parallel to B;

2) When A is projected onto the straight line where B is located (the two vertices are projected vertically), A' and B are intersected and overlapped;

3) The spacing of AB is within the wall thickness parameters;

As shown in Figure 2, assuming that ac is parallel to dg and hj is parallel, the thickness parameter will not be discussed first. The parallel overlapping projection of ac and dg is because the projection of ac on dg is the intersection of df and dg. The parallel overlapping projection of ac and eg is because the projection of ac on the straight line dg where eg is located is the intersection of df and eg. Similarly, ac and hj overlap projection in parallel. The overlapping projections of ab and fg are not parallel, because the projection of ab on the straight line dg where eg is located is that de and fg do not intersect. Similarly, ab and ij are non-parallel overlapping projections, and ac and fg are non-parallel overlapping projections, because the projection of ac on the straight line dg where eg is located is that df and fg intersect but do not overlap. Similarly, ac and ij are not parallel overlapping projections.

Then the thickness parameter needs to be considered, assuming that the distance be between ac and dg is ε, and the distance eh between hj and dg is ε, assuming that the preset wall thickness parameter is 1/2ε to 3/2ε, it is considered that the distance from ac to hj is 2ε If the thickness parameter is not met, the above ac and hj are non-parallel overlapping projections.

In specific applications, the thickness range parameter of 0.05 to 0.4 meters can meet the indoor conditions of most CAD drawings. According to different scenarios, define the wall thickness parameter as 0.01m to 10m.

Referring to Fig. 3 and Fig. 4, the door data is generated in step S12, first traverse all the edges of the wall linear data, find all the edges smaller than the thickness of the wall, and check whether this edge can be connected with a nearby wall by searching the R-tree Edges with parallel overlapping projections and a distance less than the door width generate walls. Here, if the generated part is already inside the wall, it will not affect it, because the main function of this step is to close the interval. In this process, Rtree can be used to reduce the search volume and reduce the time cost.

In step S13, decomposing the line data set into discrete line segments, and performing point sampling on the discrete line segments to obtain a set of discrete points, including:

Splitting the line data set into a set of line segments consisting of two discrete points;

uniform sampling on each line segment in the line segment set according to a preset sampling density to obtain point data;

A set of discrete points is constructed according to all the point data and the first and last two points of each line segment.

Among them, the sampling density can directly adopt the wall thickness. In the specific implementation, the polygon is first decomposed into discrete lines, and then each line is sampled with points, and the fixed width between each point plus two points at the beginning and end of each line segment puts all points in a set. A set of discrete points is obtained, as shown in Figure 5.

In step S14, a plurality of closed contour lines are obtained based on the rolling ball method according to the preset circle diameter and the set of discrete points.

It should be noted that the purpose of this step is to determine the approximate shape of each room, and AlphaShape (rolling ball method) can be used to restore the outline. Specifically, input a set of discrete points, and the diameter of the circle controlling the alpha parameter is greater than the distance between the discrete points. You can directly use the alpha value whose radius is the sampling distance to obtain multiple closed curves, and then form multiple closures of the room through the closed curves contour line. As shown in Figure 6, call the polygon generated by AlphaShape and its edge point data. Since AlphaShape cannot restore specific angle information, the right angles around the polygon need to be further restored.

In step S15, determining the vertices of the closed contour line according to the valid edges in the closed contour line includes:

When the number of effective sides in any of the closed contour lines is greater than 3, the closed contour line is determined as a valid polygon;

Performing an extension operation on every two adjacent valid sides in the valid polygon to obtain a valid side extension line;

The intersection of two adjacent effective side extension lines is determined as the vertex of the closed contour line.

Wherein, the effective side is a side whose side length is greater than the diameter of the circle in each of the closed contour lines.

It should be noted that after obtaining the approximate shape of the room, since the alphashape is composed of scattered points, there will be a large number of scattered points on the same straight line and the corner information will be ignored. It is necessary to restore the edges larger than the diameter of the alpha circle first. They are called active edges. When the number of valid sides is greater than 3, it is considered to be a valid polygon. Between every two adjacent effective sides, it is necessary to find a point of their extension line, and the intersection point of this extension line is the vertex of the polygon. After finding all the vertices, the room polygon can be restored.

Further, the legality of the room can be controlled by controlling the size of the room and the number of sides. When a special situation occurs, such as two adjacent valid sides parallel or the intersection point is very far away, it is considered that only two sides are not actually adjacent sides of the actual room, and a vertical line is made to restore another valid side between them.

In step S16, restore according to all the vertices to obtain the polygon of the room. This step can realize the simplification of polygon restoration, and the final polygon of the room is shown in Figure 7.

Further, when any two of the room polygons overlap, the polygons in the two room polygons that overlap with the wall or door data are deleted. It should be noted that because the desired rooms are independent of each other, there is no overlap, and AlphaShape may obtain overlapping data structures, such as the outer contour of the map, which generally also generates room areas. Therefore, when the room polygons overlap, it is necessary to perform overlap detection on the obtained room data. Generally, the smaller polygonal room area is reserved, and the larger room is used as a partial or overall outer contour.

The present invention provides a method for generating room data based on architectural vector diagrams. By acquiring architectural vector diagram data, wall linear data is obtained according to the architectural vector diagram data; according to the wall linear data, the preset wall Thickness parameters of the body and the maximum length of the door to generate a line data set containing the door data, which can be optimized by using the short side combined with the spatial data index Rtree to construct a line data set containing the door data; the line data set is decomposed into discrete line segments, Carrying out point sampling on the discrete line segment to obtain a set of discrete points; according to the preset circle diameter and the set of discrete points, a plurality of closed contour lines are obtained based on the rolling ball method; The vertices of the closed contour lines; wherein, the effective side is the side in each closed contour line whose side length is greater than the diameter of the circle; restore according to all the vertices to obtain the room polygon. The present invention uses alpha Shape (rolling ball method) to construct the closed contour line of the room, constructs the line data set including the door data, and restores the room polygon through the contour scattered points. The whole process does not need to analyze the accurate door information to fill the wall interval, and is affected by the pillars, The influence of corners is less, which is more in line with actual needs.

Referring to FIG. 8, the second embodiment of the present invention provides a device for generating room data based on architectural vector graphics, including:

A data acquisition module, configured to acquire architectural vector diagram data, and obtain wall linear data according to the architectural vector diagram data;

A line set generating module, configured to generate door data according to the wall line data, preset wall thickness parameters and door maximum length, and construct line data according to the door data and the wall line data gather;

A vertex sampling module, configured to decompose the line data set into discrete line segments, and perform point sampling on the discrete line segments to obtain a set of discrete points;

A contour generation module, used to obtain multiple closed contours based on the rolling ball method according to the preset circle diameter and the set of discrete points;

A vertex determination module, configured to determine a vertex of the closed contour line according to an effective side in the closed contour line; wherein, the effective side is a side whose side length is greater than the diameter of the circle in each closed contour line;

The room generation module is used to perform restoration according to all the vertices to obtain the room polygon.

Preferably, the line set generation module includes:

A line segment generating unit, configured to traverse all sides of the wall linear data, convert each side of the wall linear data into discrete two-point line segments, and store them in the line segment group;

The traversal search unit is used to traverse the line segment group, select an input line segment within a preset thickness range from the line segment group and search with the input line segment as the center, and obtain a distance from the input line segment within a preset All output line segments within the gate width;

A line set generating unit, configured to select a target line segment that satisfies the parallel overlapping projection condition with the input line segment and whose distance is smaller than the maximum length of the gate from all the output line segments, and generates gate data according to the input line segment and the target line segment , and construct a line data set according to the door data and the wall line data.

Preferably, the vertex sampling module includes:

An array splitting unit, configured to split the line data set into a line segment set consisting of two discrete points;

A point sampling unit, configured to uniformly sample each line segment in the set of line segments according to a preset sampling density to obtain point data;

The set construction unit constructs a set of discrete points according to all the point data and the first and last points of each line segment.

Preferably, the vertex determination module includes:

A polygon determination unit, configured to determine the closed contour as a valid polygon when the number of valid sides in any of the closed contours is greater than 3;

An extension unit, configured to perform an extension operation on every two adjacent valid sides in the valid polygon to obtain a valid side extension line;

A vertex determining unit, configured to determine the intersection of two adjacent effective side extension lines as the vertex of the closed contour line.

Preferably, the device also includes:

The overlap deletion module is configured to delete the polygons in the two room polygons that overlap with the wall or door data when any two of the room polygons overlap.

It should be noted that the device for generating room data based on architectural vector graphics provided by the embodiment of the present invention is used to execute all the process steps of the method for generating room data based on architectural vector graphics in the above embodiments, and the working principles of the two There is a one-to-one correspondence with the beneficial effects, so details are not repeated here.

The embodiment of the present invention also provides a terminal device. The terminal device includes: a processor, a memory, and a computer program stored in the memory and operable on the processor, for example, a program for generating room data based on a building vector diagram. When the processor executes the computer program, the steps in the above embodiments of the method for generating room data based on the architectural vector diagram are implemented, such as step S11 shown in FIG. 1 . Alternatively, when the processor executes the computer program, functions of each module/unit in the above-mentioned device embodiments, such as a profile generation module, are implemented.

Exemplarily, the computer program may be divided into one or more modules/units, and the one or more modules/units are stored in the memory and executed by the processor to complete the present invention. The one or more modules/units may be a series of computer program instruction segments capable of accomplishing specific functions, and the instruction segments are used to describe the execution process of the computer program in the terminal device.

The terminal device may be computing devices such as desktop computers, notebooks, palmtop computers, and smart tablets. The terminal device may include, but not limited to, a processor and a memory. Those skilled in the art can understand that the above-mentioned components are only examples of terminal equipment, and do not constitute a limitation on terminal equipment, and may include more or less components than the above-mentioned components, or combine some components, or different components, such as the The above-mentioned terminal equipment may also include input and output equipment, network access equipment, bus and so on.

The so-called processor can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the terminal device, and connects various parts of the entire terminal device with various interfaces and lines.

The memory can be used to store the computer programs and/or modules, and the processor implements the terminal by running or executing the computer programs and/or modules stored in the memory and calling the data stored in the memory various functions of the device. The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.) and the like; the storage data area may store Data created based on the use of the mobile phone (such as audio data, phonebook, etc.), etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, internal memory, plug-in hard disk, smart memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card , a flash memory card (Flash Card), at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

Wherein, if the modules/units integrated in the terminal equipment are realized in the form of software function units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the present invention realizes all or part of the processes in the methods of the above embodiments, and can also be completed by instructing related hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer When the program is executed by the processor, the steps in the above-mentioned various method embodiments can be realized. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, computer-readable media Excludes electrical carrier signals and telecommunication signals.

It should be noted that the device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physically separated. A unit can be located in one place, or it can be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that they have a communication connection, which can be specifically implemented as one or more communication buses or signal lines. It can be understood and implemented by those skilled in the art without creative effort.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the protection scope of the present invention. . In particular, for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A method for generating room data based on building vector diagrams, comprising: Obtaining architectural vector diagram data, and obtaining wall linear data according to the architectural vector diagram data; Generate door data according to the wall linear data, preset wall thickness parameters and door maximum length, and construct a line data set according to the door data and the wall linear data; Decomposing the line data set into discrete line segments, performing point sampling on the discrete line segments to obtain a discrete point set; According to the preset circle diameter and the set of discrete points, multiple closed contour lines are obtained based on the rolling ball method; Determining the vertices of the closed contour line according to the effective sides in the closed contour line; wherein, the effective side is a side whose side length is greater than the diameter of the circle in each of the closed contour lines; Reduction is performed based on all said vertices to obtain the room polygon. 2. The method for generating room data based on architectural vector diagrams according to claim 1, wherein said door data is generated according to said wall linear data, preset wall thickness parameters and door maximum length, and According to the door data and the wall line data, construct a line data set, including: Traversing all sides of the wall linear data, converting each side of the wall linear data into discrete two-point line segments, and storing them in line segment groups; Traverse the line segment group, select an input line segment within a preset thickness range from the line segment group and search with the input line segment as the center, and obtain all outputs whose distance from the input line segment is within the preset gate width line segment; Select a target line segment that satisfies the parallel overlapping projection condition with the input line segment and is less than the maximum length of the gate from all the output line segments, generate gate data according to the input line segment and the target line segment, and generate gate data according to the gate data and the wall line data to construct a line data set. 3. The method for generating room data based on architectural vector diagrams according to claim 1, wherein said line data sets are decomposed into discrete line segments, and point sampling is carried out to said discrete line segments to obtain discrete point sets, include: Splitting the line data set into a set of line segments consisting of two discrete points; uniform sampling on each line segment in the line segment set according to a preset sampling density to obtain point data; A set of discrete points is constructed according to all the point data and the first and last two points of each line segment. 4. The method for generating room data based on building vector diagrams according to claim 1, wherein said determining the vertex of said closed contour line according to the effective sides in said closed contour line comprises: When the number of effective sides in any of the closed contour lines is greater than 3, the closed contour line is determined as a valid polygon; Performing an extension operation on every two adjacent valid sides in the valid polygon to obtain a valid side extension line; The intersection of two adjacent effective side extension lines is determined as the vertex of the closed contour line. 5. The method for generating room data based on building vector diagrams according to claim 1, wherein the method further comprises: When any two room polygons overlap, delete the polygons in the two room polygons that overlap with the wall or door data. 6. A device for generating room data based on architectural vector graphics, comprising: A data acquisition module, configured to acquire architectural vector diagram data, and obtain wall linear data according to the architectural vector diagram data; A line set generation module, configured to generate door data according to the wall line data, preset wall thickness parameters and door maximum length, and construct a line data set according to the door data and the wall line data ; A vertex sampling module, configured to decompose the line data set into discrete line segments, and perform point sampling on the discrete line segments to obtain a set of discrete points; A contour generation module, used to obtain multiple closed contours based on the rolling ball method according to the preset circle diameter and the set of discrete points; A vertex determination module, configured to determine a vertex of the closed contour line according to an effective side in the closed contour line; wherein, the effective side is a side whose side length is greater than the diameter of the circle in each closed contour line; The room generation module is used to perform restoration according to all the vertices to obtain the room polygon. 7. The device for generating room data based on architectural vector diagrams according to claim 6, wherein the line set generating module comprises: A line segment generating unit, configured to traverse all sides of the wall linear data, convert each side of the wall linear data into discrete two-point line segments, and store them in the line segment group; The traversal search unit is used to traverse the line segment group, select an input line segment within a preset thickness range from the line segment group and search with the input line segment as the center, and obtain a distance from the input line segment within a preset All output line segments within the gate width; A line set generating unit, configured to select a target line segment that satisfies the parallel overlapping projection condition with the input line segment and whose distance is smaller than the maximum length of the gate from all the output line segments, and generates gate data according to the input line segment and the target line segment , and construct a line data set according to the door data and the wall line data. 8. The device for generating room data based on building vector diagrams according to claim 6, wherein the vertex sampling module includes: An array splitting unit, configured to split the line data set into a line segment set consisting of two discrete points; A point sampling unit, configured to uniformly sample each line segment in the set of line segments according to a preset sampling density to obtain point data; The set construction unit constructs a set of discrete points according to all the point data and the first and last points of each line segment. 9. A terminal device, characterized in that it includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, when the processor executes the computer program, it realizes the The method for generating room data based on architectural vector graphics described in any one of 1 to 5 is required. 10. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute The method for generating room data based on architectural vector graphics described in any one of 1 to 5.

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