CN112598794A

CN112598794A - Method, device and equipment for determining three-dimensional model of steel bar of arched building

Info

Publication number: CN112598794A
Application number: CN202011563734.2A
Authority: CN
Inventors: 毛争国
Original assignee: Glodon Co Ltd
Current assignee: Glodon Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-02

Abstract

The invention relates to the technical field of building design and discloses a method, a device and equipment for determining a three-dimensional model of a steel bar of an arched building. Wherein, the method comprises the following steps: cutting the arch building three-dimensional model, and dividing the arch building three-dimensional model into at least two parts; respectively determining stressed reinforcement lines corresponding to at least two parts; and generating a steel bar three-dimensional model based on the stressed steel bar line. By implementing the method, the overlarge difference between the three-dimensional model of the steel bar and the actual building is avoided, and the constructed three-dimensional model of the steel bar is ensured to be more consistent with the actual shape of the arched building.

Description

Method, device and equipment for determining three-dimensional model of steel bar of arched building

Technical Field

The invention relates to the technical field of building design, in particular to a method, a device and equipment for determining a three-dimensional model of a steel bar of an arched building.

Background

The design of buildings with arches, spheres and tapered plates as roofs usually requires the use of arched beams for support, as well as arched beams above the arch windows and doors on the shear walls. The arched beam is built through the steel bars, so that the steel bar three-dimensional model of the arched building needs to be attached to the actual shape of the building, and the required steel bar amount is calculated according to the actual building condition. However, the existing three-dimensional rebar models of arch buildings are displayed in straight lines and are difficult to fit the actual building shape, so that the finally determined three-dimensional rebar models of arch buildings are too far away from the actual buildings.

Disclosure of Invention

In view of this, embodiments of the present invention provide a method, an apparatus, and a device for determining a three-dimensional model line of a reinforcement of an arch-shaped building, so as to solve the problem of an excessive difference between the three-dimensional model of the reinforcement of the arch-shaped building and an actual building.

According to a first aspect, an embodiment of the present invention provides a method for determining a three-dimensional model of a steel bar of an arch-shaped building, including the following steps: cutting an arch building three-dimensional model, and dividing the arch building three-dimensional model into at least two parts; respectively determining stressed reinforcement lines corresponding to the at least two parts; and generating a steel bar three-dimensional model based on the stressed steel bar line.

According to the method for determining the three-dimensional model of the steel bar of the arched building, provided by the embodiment of the invention, the three-dimensional model of the arched building is cut, the three-dimensional model of the arched building is divided into at least two parts, the steel bar lines corresponding to the at least two parts are respectively determined, and the three-dimensional model of the steel bar is generated based on the calculated steel bar lines. According to the method, the arch-shaped building three-dimensional model is cut to obtain the reinforcing steel bar lines corresponding to the cutting parts of the arch-shaped building three-dimensional model, the reinforcing steel bar three-dimensional model corresponding to the arch-shaped building three-dimensional model is obtained through calculation of the reinforcing steel bar lines of the cutting parts, the constructed reinforcing steel bar three-dimensional model is displayed in a three-dimensional mode, the condition that the difference between the reinforcing steel bar three-dimensional model and an actual building is too large is avoided, and the constructed reinforcing steel bar three-dimensional model is guaranteed to be more in line with the actual shape of.

With reference to the first aspect, in a first implementation manner of the first aspect, the cutting the arched building three-dimensional model to divide the arched building three-dimensional model into at least two parts includes: acquiring a reference reinforcement line of the arched building three-dimensional model; determining a cutting surface of the arched building three-dimensional model based on the reference reinforcement line; and cutting the arched building three-dimensional model into at least two parts through the cutting surface.

According to the determination method of the three-dimensional model of the steel bar of the arched building, the reference steel bar line of the arched building is obtained, the cutting surface of the three-dimensional model of the arched building is determined based on the reference steel bar line, and the cutting surface is used for cutting the three-dimensional model of the arched building, so that at least two cutting parts corresponding to the three-dimensional model of the arched building are obtained. The cutting surface is used for cutting the arched building three-dimensional model for multiple times, the obtained steel bar line is ensured to be more in line with the actual shape of the arched building, and the steel bar three-dimensional model obtained through calculation of the steel bar line is further ensured to be more in line with the actual shape of the arched building.

With reference to the first embodiment of the first aspect, in a second embodiment of the first aspect, the determining a cutting plane of the arched building three-dimensional model based on the reference reinforcement line includes: identifying the three-dimensional model of the arched building, and determining the degree of bending of two sides of the three-dimensional model of the arched building; judging whether the bending degree of the two sides is greater than a preset bending degree or not; and when the bending degrees of the two sides are greater than the preset bending degree, determining a cutting surface corresponding to the arched building three-dimensional model based on the bending degrees of the two sides and the reference reinforcing steel line.

With reference to the second implementation manner of the first aspect, in a third implementation manner of the first aspect, when the degree of bending of the two sides is greater than a preset degree of bending, determining a cutting plane corresponding to the arched building three-dimensional model based on the degree of bending of the two sides and the reference reinforcement line includes: determining target reinforcement line corresponding to the arched building three-dimensional model based on the reference reinforcement line; acquiring arrangement position points of stress reinforcement lines of the arched building three-dimensional model; and determining a cutting surface corresponding to the arched building three-dimensional model based on the target reinforcement line and the arrangement position points.

With reference to the third implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the determining a cutting surface corresponding to the arched building three-dimensional model based on the target tendon arrangement line and the arrangement position point includes: calculating a first tangent vector of the arrangement position points of the stressed reinforcement wire on the target reinforcement wire; and determining a cutting surface corresponding to the arched building three-dimensional model based on the first tangent vector.

With reference to the fourth implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the determining a cutting surface corresponding to the arched building three-dimensional model based on the first cutting vector includes: taking the first tangent vector as a first direction vector, and calculating a rotation vector corresponding to the counterclockwise rotation of the first direction vector by 90 degrees; calculating a cross product of the first direction vector and the rotation vector to obtain a second direction vector; and obtaining a cutting surface corresponding to the arched building three-dimensional model based on the first direction vector and the second direction vector.

With reference to the second embodiment of the first aspect, in a sixth embodiment of the first aspect, the determining a cutting plane of the arched building three-dimensional model based on the reference reinforcement line further includes: when the bending degree of the two sides is smaller than the preset bending degree, determining target reinforcement line corresponding to the arched building three-dimensional model based on the reference reinforcement line; and determining a cutting surface corresponding to the arched building three-dimensional model based on the target reinforcement line and a second cutting vector corresponding to the target reinforcement line.

With reference to the sixth implementation manner of the first aspect, in a seventh implementation manner of the first aspect, the determining a cutting surface corresponding to the arched building three-dimensional model based on the target tendon line and a second cutting vector corresponding to the target tendon line includes: determining a second tangent vector consistent with the direction of the target reinforcement line based on the starting point and the end point of the target reinforcement line; taking the second tangent vector as a first direction vector, and taking the vertical direction of the three-dimensional coordinate system as a second direction vector; and obtaining a cutting surface corresponding to the arched building three-dimensional model based on the first direction vector and the second direction vector.

According to the method for determining the three-dimensional model of the steel bar of the arched building, which is provided by the embodiment of the invention, the bending degrees of the two sides of the arched building are obtained, and the corresponding cutting surfaces are constructed based on the different bending degrees of the two sides, so that the problem that the arched building cannot be vertically cut by using the cutting surfaces is avoided, and the cutting bodies obtained by cutting the arched building can be correctly projected, so that the steel bar line which conforms to the actual shape of the arched building is obtained.

With reference to any one of the first to seventh embodiments of the first aspect, in an eighth embodiment of the first aspect, the generating the three-dimensional rebar model based on stressed rebar lines includes: identifying the stressed reinforcement steel wire and determining the line type of the stressed reinforcement steel wire, wherein the line type comprises a straight line shape and/or an arc line shape; and generating the three-dimensional model of the steel bar based on the line type and the cutting surface.

With reference to the eighth implementation manner of the first aspect, in a ninth implementation manner of the first aspect, for a straight stressed reinforcement steel wire, the generating the three-dimensional reinforcement model based on the line type includes: acquiring a starting point and an end point of the linear stressed reinforcement line; and obtaining the three-dimensional model of the steel bar based on the starting point and the end point of the linear stressed steel bar line and the coordinate system where the cutting surface is located.

With reference to the ninth implementation manner of the first aspect, in a tenth implementation manner of the first aspect, the obtaining the three-dimensional model of the steel bar based on the start point and the end point of the linear stressed steel bar line and the coordinate system where the cutting surface is located includes: mapping the starting point and the end point of the linear stressed reinforcement wire to a coordinate system where the cutting surface is located, and respectively calculating to obtain a first three-dimensional starting point and a first three-dimensional end point corresponding to the starting point and the end point of the linear stressed reinforcement wire; connecting the first three-dimensional starting point and the first three-dimensional end point to obtain a three-dimensional line corresponding to the linear stressed reinforcement bar line; and arranging the three-dimensional lines in a reinforcement arrangement range corresponding to the arched building three-dimensional model to generate the reinforcement three-dimensional model.

With reference to the eighth implementation manner of the first aspect, in an eleventh implementation manner of the first aspect, for an arc-shaped stressed reinforcement steel wire, the generating the three-dimensional reinforcement model based on the wire type includes: acquiring a starting point, an end point and a circle center of the arc-shaped stress bar reinforcing steel wire; and obtaining the three-dimensional model of the steel bar based on the starting point, the end point and the circle center of the arc-shaped stressed steel bar line and the coordinate system where the cutting surface is located.

With reference to the eleventh implementation manner of the first aspect, in a twelfth implementation manner of the first aspect, the obtaining the three-dimensional model of the steel bar based on the starting point, the ending point, and the center of the arc-shaped stressed steel bar line and the coordinate system where the cutting surface is located includes: mapping the starting point, the end point and the circle center of the arc-shaped stressed rib wire to a coordinate system where the cutting surface is located, and respectively calculating to obtain the starting point, the end point, a second three-dimensional starting point, a second three-dimensional end point and a three-dimensional circle center, wherein the second three-dimensional starting point, the second three-dimensional end point and the three-dimensional circle center correspond to the circle center; connecting the second three-dimensional starting point and the second three-dimensional end point based on the three-dimensional circle center to form a three-dimensional line corresponding to the arc-shaped stress bar reinforcing steel line; and arranging the three-dimensional lines in a reinforcement arrangement range corresponding to the arched building three-dimensional model to generate the reinforcement three-dimensional model.

According to the method for determining the steel bar three-dimensional model of the arched building, provided by the embodiment of the invention, the line type of the stressed steel bar line is identified, the three-dimensional points corresponding to the steel bar line are calculated according to different line types and a cutting surface coordinate system, the three-dimensional points are connected to generate the three-dimensional line of the steel bar line, the three-dimensional line is ensured to be more in line with the reality, and the three-dimensional lines are sequentially distributed in the reinforcement distribution range of the arched building three-dimensional model to obtain the steel bar three-dimensional model corresponding to the arched building, so that the steel bar three-dimensional model is ensured to be more in line with.

With reference to the third embodiment or the sixth embodiment of the first aspect, in a thirteenth embodiment of the first aspect, the determining a target reinforcement line corresponding to the arch-shaped building based on the reference reinforcement line includes: determining a midpoint of the reference reinforcement line based on the reference reinforcement line, and calculating a third tangent vector of the midpoint on the reference reinforcement line; and determining the target reinforcement line according to the third tangent vector and the reinforcement distribution range of the arched building three-dimensional model.

With reference to the thirteenth implementation manner of the first aspect, in a fourteenth implementation manner of the first aspect, the determining the target reinforcement line according to the third tangent vector and a reinforcement range of the arched building three-dimensional model includes: rotating the third tangent vector by 90 degrees, and constructing a straight line segment by taking the middle point of the reference reinforcement line as a starting point; extending the intersection of the straight line section and the reinforcement arrangement range, and connecting the intersection points of the straight line section and the reinforcement arrangement range to obtain an original reinforcement arrangement line corresponding to the reference reinforcement line; and determining the target reinforcement line based on the original reinforcement line and the stressed reinforcement line.

With reference to the fourteenth implementation manner of the first aspect, in a fifteenth implementation manner of the first aspect, the determining the target reinforcement line based on the original reinforcement line and the stressed reinforcement line includes: determining a first range corresponding to the original reinforcement wire arrangement and a second range corresponding to the stressed reinforcement wire by using a preset algorithm; determining an intersection point of the first range and the second range based on the first range and the second range; and adjusting the original rib arrangement lines based on the intersection points, and determining target rib arrangement lines corresponding to the rib arrangement range of the arched building three-dimensional model.

The determination method of the three-dimensional reinforcement model of the arched building, provided by the embodiment of the invention, comprises the steps of determining the midpoint of the reference reinforcement line based on the reference reinforcement line, calculating the tangent vector of the midpoint on the reference reinforcement line, determining the original reinforcement distribution line according to the tangent vector determination and the reinforcement distribution range of the arched building, adjusting the original reinforcement distribution line according to the preset algorithm, determining the target reinforcement distribution line, so as to ensure the accuracy of the length of the reinforcement distribution line, further ensure the distribution position of the stressed reinforcement line determined based on the target reinforcement distribution line, and enable the distribution position of the stressed reinforcement line to be more accurate, thereby accurately calculating the reinforcement quantity required by the arched building, and ensuring that the calculated reinforcement quantity meets the reinforcement quantity corresponding to the actual building.

With reference to the first aspect, in a sixteenth implementation manner of the first aspect, the respectively determining the stressed reinforcement steel wires corresponding to the at least two portions includes: respectively acquiring projection polygons corresponding to the at least two parts; respectively determining an upper edge line and a lower edge line corresponding to the at least two parts based on the projected polygon; and taking the upper edge lines and the lower edge lines corresponding to the at least two parts as stressed rib lines corresponding to the at least two parts respectively, wherein the stressed rib lines are two-dimensional stressed rib lines.

The method for determining the steel bar three-dimensional model of the arched building provided by the embodiment of the invention is characterized in that the arched building three-dimensional model is cut by a cutting surface to obtain a projection polygon on the side surface of the arched building three-dimensional model, an upper edge line and a lower edge line are determined based on the projection polygon, and the upper edge line and the lower edge line are used as stress bar steel bar lines. The method determines the stress bar reinforcing line in a projection polygon mode, and ensures that the stress bar reinforcing line conforms to the actual shape of the arched building.

According to a second aspect, an embodiment of the present invention provides an apparatus for determining a three-dimensional model of a rebar of an arch-shaped building, including: the segmentation module is used for cutting the arched building three-dimensional model and segmenting the arched building three-dimensional model into at least two parts; the determining module is used for respectively determining stressed reinforcement lines corresponding to the at least two parts; and the generating module is used for generating the steel bar three-dimensional model based on the stressed steel bar line.

According to the determination device for the three-dimensional reinforcing steel bar model of the arched building, provided by the embodiment of the invention, the three-dimensional reinforcing steel bar model of the arched building is cut to obtain the reinforcing steel bar lines corresponding to the cutting parts of the three-dimensional arched building model, the three-dimensional reinforcing steel bar model corresponding to the three-dimensional arched building model is obtained through calculation of the reinforcing steel bar lines of the cutting parts, the three-dimensional constructed reinforcing steel bar model is displayed in a three-dimensional mode, the condition that the difference between the three-dimensional reinforcing steel bar model and an actual building is overlarge is avoided, and the condition that the three-dimensional constructed reinforcing steel bar model is more.

According to a third aspect, the invention provides an electronic device comprising: a memory and a processor, the memory and the processor are communicatively connected with each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the method for determining the three-dimensional model of the steel bar of the arched building according to the first aspect or any embodiment of the first aspect.

According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores computer instructions for causing a computer to execute the method for determining a three-dimensional model of a rebar of an arch-shaped building according to the first aspect or any one of the embodiments of the first aspect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a flow chart of a method for determining a three-dimensional model of rebar of an arch-shaped building according to an embodiment;

FIG. 2 is another flow chart of a method for determining a three-dimensional model of rebar of an arch-shaped building according to an embodiment;

FIG. 3 is another flow chart of a method for determining a three-dimensional model of rebar of an arch-shaped building according to an embodiment;

FIG. 4 is a schematic view of a reference reinforcement line of the arch-shaped building of the embodiment;

FIG. 5 is a schematic diagram of the determination of a first direction vector and a second direction vector of an embodiment;

FIG. 6 is a block diagram showing the structure of an apparatus for determining a three-dimensional model of a rebar of an arch-shaped building according to an embodiment;

fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention;

fig. 8 is a schematic view of a three-dimensional model of rebar of an arch-shaped building of an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The arched beams are generally built by steel bars, so that a steel bar three-dimensional model of the arched building needs to be fit with the actual shape of the building, and the required steel bar amount is calculated according to the actual building condition. However, the existing arch-shaped building three-dimensional models are displayed in a straight line and are difficult to fit with the actual building shape, so that the finally determined arch-shaped building reinforcing steel bar three-dimensional model is too far away from the actual building.

Based on this, this technical scheme is through constructing the cutting plane, adopts the cutting plane cutting arch building to obtain the atress muscle steel line that corresponds to arch building three-dimensional model, calculates the reinforcing bar three-dimensional model through the atress muscle steel line, has guaranteed that the reinforcing bar three-dimensional model accords with the actual shape of arch building more.

In accordance with an embodiment of the present invention, there is provided an embodiment of a method for determining a three-dimensional model of rebar of an arch-shaped structure, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.

In this embodiment, a method for determining a three-dimensional model of a steel bar of an arched building is provided, which can be used in the above-mentioned electronic devices, such as a mobile phone, a computer, a tablet computer, and the like, and fig. 1 is a flowchart of a method for determining a three-dimensional model of a steel bar of an arched building according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:

and S11, cutting the arch building three-dimensional model, and dividing the arch building three-dimensional model into at least two parts.

The arched building three-dimensional model is an actual shape model of an arched building, and when the arched building is built, the three-dimensional model of the arched building is usually required to be built, so that building technicians can build the arched building according to the three-dimensional model. The formation of arched structures requires support by means of arched beams, which are generally built up by means of steel reinforcement. In order to obtain the steel bar three-dimensional model attached to the actual building, the arched building three-dimensional model can be cut through the cutting surface, and the arched building three-dimensional model is divided into at least two parts. Specifically, the reinforcement arrangement range of the arched building three-dimensional model can be obtained, the distance between two adjacent reinforcements is set, and the arched building three-dimensional model is cut once every time one stressed reinforcement line is generated, so that the arched building three-dimensional model can be cut into a plurality of parts.

And S12, respectively determining the stressed reinforcement lines corresponding to at least two parts.

At least two cuts, i.e. two parts, can be made by cutting the three-dimensional model of the arch building. And respectively carrying out side projection on each cut body obtained by cutting to obtain a projection polygon corresponding to the cut body, and taking the projection polygon as a stress bar reinforcing line to ensure that each stress bar reinforcing line is attached to the actual shape of the arched building.

And S13, generating a steel bar three-dimensional model based on the stressed steel bar line.

The stressed rib line is a projection polygon, that is, the obtained stressed rib line is a two-dimensional line, and in a simple way, the stressed rib line is a line segment which is only a two-dimensional coordinate system and has an X value of an abscissa and a Y value of an ordinate. Based on the method, the stress reinforcement lines can be mapped into a three-dimensional coordinate system, the Z values corresponding to the stress reinforcement lines are determined, the three-dimensional lines corresponding to the stress reinforcement lines are obtained, and the stress reinforcement lines are arranged according to the arrangement positions in the reinforcement arrangement range corresponding to the arch-shaped building three-dimensional model. The arrangement position is a spacing distance between adjacent reinforcing bars, which can be determined according to an empirical value of a person skilled in the art, and is not particularly limited herein. The rib arrangement range is the range of the surface type arch building for arranging the stressed rib lines, wherein the surface type arch building component is the downward projection of the arch building three-dimensional model. The number of the three-dimensional lines to be arranged can be determined according to the width and the spacing distance of the rib arrangement range. Arranging a certain number of three-dimensional lines within the rib arrangement range according to the arrangement positions to obtain a three-dimensional model of the steel bar corresponding to the three-dimensional model of the arch building, as shown in fig. 8.

In the method for determining the three-dimensional model of the steel bar of the arched building, the three-dimensional model of the arched building is cut, the arched building is divided into at least two parts, the steel bar lines corresponding to the at least two parts are respectively determined, and the three-dimensional model of the steel bar is generated based on the calculated steel bar lines. According to the method, the arch-shaped building three-dimensional model is cut to obtain the reinforcing steel bar lines corresponding to the cutting parts of the arch-shaped building three-dimensional model, the reinforcing steel bar three-dimensional model corresponding to the arch-shaped building three-dimensional model is obtained through calculation of the reinforcing steel bar lines of the cutting parts, the constructed reinforcing steel bar three-dimensional model is displayed in a three-dimensional mode, the condition that the difference between the reinforcing steel bar three-dimensional model and an actual building is too large is avoided, and the constructed reinforcing steel bar three-dimensional model is guaranteed to be more in line with the actual shape of.

In this embodiment, a method for determining a three-dimensional model of a steel bar of an arched building is provided, which can be used in the above-mentioned electronic devices, such as a mobile phone, a computer, a tablet computer, and the like, and fig. 2 is a flowchart of the method for determining a three-dimensional model of a steel bar of an arched building according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:

and S21, cutting the arch building three-dimensional model, and dividing the arch building three-dimensional model into at least two parts.

Specifically, the step S21 may include the following steps:

and S211, acquiring a reference reinforcement line of the arched building three-dimensional model.

The reference reinforcing steel bar line is a reinforcing steel bar line generated when the stress bars are arranged. When constructing the three-dimensional model of the arch-shaped building, first, the corresponding stress bars need to be arranged according to the arch-shaped building, for example, the stress bars of the arch-shaped plate are arranged in sequence from the left side to the right side, and the reference reinforcement line is a reinforcement line bisecting the stress bars, as shown in fig. 4.

S212, determining a cutting surface of the arched building three-dimensional model based on the reference reinforcing steel line.

The cutting surface is a vertical cutting surface of the arched building three-dimensional model. The perpendicular bisector of the reference reinforcing steel line can be determined through the determined reference reinforcing steel line, the perpendicular bisector is used as a reinforcement distribution line of the arched building three-dimensional model, and the stress bars can be arranged along the reinforcement distribution line. And constructing a vertical cutting surface of the arch building three-dimensional model based on the reinforcement wire, and cutting the arch building three-dimensional model.

And S213, cutting the arched building three-dimensional model into at least two parts through the cutting surface.

The arched building three-dimensional model can be cut into at least two parts by cutting the arched building three-dimensional model by using the cutting surface. And then a plurality of cutting bodies corresponding to the arch building three-dimensional model can be obtained. Specifically, the number of the stressed reinforcement lines to be arranged can be determined through the reinforcement arrangement range of the arched building three-dimensional model and the distance between two adjacent reinforcements, and the arched building three-dimensional model can be cut once every time one stressed reinforcement line is arranged, so that the arched building three-dimensional model can be cut into a plurality of parts.

Specifically, the step S212 may include the following steps:

(1) and identifying the three-dimensional model of the arched building and determining the bending degree of two sides of the three-dimensional model of the arched building.

Both sides of the arch building are bent to a certain degree, so that both sides of the three-dimensional model of the arch building corresponding to the arch building are bent to a certain degree. When the two sides are bent to a large degree, when a vertical cutting surface is used for cutting, the part with the large bending degree of the arched building three-dimensional model cannot be cut, so that a side projection polygon obtained by cutting the arched building three-dimensional model by the vertical surface is wrong, and therefore the bending degrees of the two sides of the arched building need to be obtained when the cutting surface is constructed. The electronic equipment can obtain the degree of curvature of two sides corresponding to the arched building three-dimensional model by identifying the arched building three-dimensional model and analyzing the arched building three-dimensional model.

(2) And judging whether the bending degree of the two sides is greater than the preset bending degree.

The preset bending degree is the bending degree of the arched building three-dimensional model corresponding to the complete side projection polygon obtained by cutting the arched building three-dimensional model through the vertical plane, the preset bending degree can be determined according to the length of the reinforcement wire distribution of the arched building three-dimensional model, and the preset bending degree is not specifically limited. And comparing the bending degrees of the two sides of the three-dimensional model of the arched building with a preset complete degree, and determining whether the bending degrees of the two sides are greater than the preset bending degree. And (5) executing the step (3) when the bending degree of the two sides is larger than the preset bending degree, otherwise executing the steps (4) and (5).

(3) And determining a cutting surface corresponding to the arched building three-dimensional model based on the bending degrees of the two sides and the reference reinforcing steel line.

When both sides bending degree is greater than predetermineeing bending degree, when arch building three-dimensional model's both sides bending degree is greater than predetermineeing bending degree, owing to adopt perpendicular cutting plane probably to be difficult to cut the both sides of arch building, consequently can construct oblique cutting plane according to arch building three-dimensional model's benchmark reinforcing bar line and cut the arch building three-dimensional model, concrete step is as follows:

(31) and determining target reinforcement line corresponding to the arched building three-dimensional model based on the reference reinforcement line.

The target reinforcement distribution line is the line along which the reinforcing steel bars are distributed, and the reinforcing steel bars can be distributed along the target reinforcement distribution line. The target reinforcement line and the reference reinforcement line are perpendicular to each other, and vertical operation is performed on the reference reinforcement line, so that the target reinforcement line corresponding to the arch-shaped building can be obtained. The method comprises the following specific steps:

(311) and determining the tangent vector of the midpoint of the reference reinforcement line on the reference reinforcement line based on the reference reinforcement line.

The electronic device may determine a midpoint of the reference reinforcement line based on the reference reinforcement line and calculate a third tangent vector of the midpoint on the reference reinforcement line, wherein the third tangent vector is parallel to the reference reinforcement line.

(312) And determining a target reinforcement arrangement line according to the third tangent vector and the reinforcement arrangement range of the arch-shaped building.

The calculated tangent vector is rotated, specifically, by 90 ° clockwise or 90 ° counterclockwise, to obtain a rotation vector corresponding to the tangent vector. And respectively extending the rotation vectors to two sides until the rotation vectors are intersected with the reinforcement arrangement range of the arched building. And acquiring the intersection points corresponding to the two sides of the rib distribution range of the arched building and the rotation vector, and connecting the corresponding intersection points on the two sides of the rib distribution range to obtain a target rib distribution line.

Specifically, the step (312) may include the steps of:

(i) and rotating the third tangent vector by 90 degrees, and constructing a straight line segment by taking the middle point of the reference reinforcing steel line as a starting point.

And rotating the third tangent vector by 90 degrees clockwise or 90 degrees anticlockwise, taking the middle point of the reference reinforcement line as a starting point, and extending the rotated third tangent vector to obtain a straight line segment. Specifically, the length interval (mm) of the straight line segment may be (0, 100], which is not specifically limited herein and can be determined by one skilled in the art according to actual needs.

(ii) And extending the intersection of the straight line section and the reinforcement distribution range, and connecting the intersection points of the straight line section and the reinforcement distribution range to obtain the original reinforcement distribution line corresponding to the reference reinforcement line.

And respectively extending the straight line sections to two sides until the straight line sections intersect with the rib distribution range, acquiring intersection points of two ends of the straight line sections and the rib distribution range, and connecting the two ends of the straight line sections and the two intersection points of the rib distribution range. Specifically, an intersection point of the straight line segment and the reinforcement arrangement range is used as a starting point, the other intersection point is used as an end point, and the starting point and the end point are connected to obtain an original reinforcement arrangement line corresponding to the reference reinforcement line.

(iii) And determining target reinforcement line based on the original reinforcement line and the stressed reinforcement line.

And adjusting the original reinforcement line arrangement according to the range of the stressed reinforcement line and the range of the original reinforcement line arrangement to obtain a target reinforcement line corresponding to the arched building three-dimensional model. Specifically, the method may include the steps of:

(a) and determining a first range corresponding to the original reinforcing wire arrangement and a second range corresponding to the projection polygon by using a preset algorithm. The preset algorithm is a packing box algorithm, and a first bounding box corresponding to the original reinforcing lines and a second bounding box corresponding to the projection polygon are respectively determined based on the packing box algorithm. Taking the lower edge line of the projection polygon as an example, respectively determining a first bounding box corresponding to the original rib line and a second bounding box corresponding to the lower edge line based on a packing box algorithm.

(b) Based on the first range and the second range, an intersection point of the first range and the second range is determined. Specifically, based on the first bounding box corresponding to the original reinforcing lines and the second bounding box corresponding to the projected polygon, the overlapping area of the first bounding box and the second bounding box can be determined. The intersection point of the first pack with the second pack is obtained in the determined overlap region.

(c) And adjusting the original rib arrangement lines based on the intersection points, and determining target rib arrangement lines corresponding to the rib arrangement range of the arched building three-dimensional model. Specifically, whether the length range of the original rib distributing line is consistent with that of the second packaging box or not is judged through the intersection point of the first packaging box and the second packaging box, and when the length range of the original rib distributing line is inconsistent with that of the second packaging box, the original rib distributing line is adjusted, specifically, the original rib distributing line can be prolonged, and the original rib distributing line can also be shortened. And obtaining target reinforcement line corresponding to the reinforcement range of the arched building by adjusting the original reinforcement line.

(32) And acquiring the arrangement position points of the stress bar steel wire of the arched building three-dimensional model.

Because the times of the stressed reinforcement lines required to be arranged in the arched building are the same as the times of constructing the oblique cutting surfaces, and the oblique cutting surfaces corresponding to each arrangement position point may be different, the arrangement position points of the stressed reinforcement lines are required to be obtained when the oblique cutting surfaces are constructed, and different oblique cutting surfaces are constructed at different arrangement position points.

(33) And determining a cutting surface corresponding to the arched building three-dimensional model based on the target reinforcement line and the arrangement position points.

The electronic equipment can calculate the vector of the arrangement position points of the stressed reinforcement bar lines in the tangential direction of the target reinforcement bar line, namely the first tangent vector of the arrangement position points on the target reinforcement bar line, calculate the vector perpendicular to the first tangent vector according to the first tangent vector, and generate the cutting surface corresponding to the arched building three-dimensional model through the tangent vector and the vector perpendicular to the tangent vector. The method comprises the following specific steps:

(331) and taking the first tangent vector as a first direction vector, and calculating a rotation vector corresponding to the counterclockwise rotation of the first direction vector by 90 degrees.

And taking the first tangent vector as a first direction vector, and rotating the first direction vector by 90 degrees anticlockwise to obtain a rotation vector corresponding to the first direction vector, namely a normal vector of the first direction vector, and a vector perpendicular to the first direction vector.

(332) And calculating the cross product of the first direction vector and the rotation vector to obtain a second direction vector.

And performing cross multiplication on the first direction vector and the corresponding rotation vector, and taking a calculation result obtained by the cross multiplication as a second direction vector.

(333) And obtaining a cutting surface corresponding to the arched building three-dimensional model based on the first direction vector and the second direction vector.

An oblique cutting plane can be constructed based on the first direction vector and the second direction vector, and the oblique cutting plane is used as a cutting plane of the arched building. As shown in fig. 5, assuming that the point C is a distribution position point OF a stressed reinforcement wire to be calculated, a tangential direction vector OD OF the point C on a target reinforcement wire is obtained, the OD vector is rotated by 90 ° counterclockwise to generate a vector OE, and then the OD vector and the OE vector are cross-multiplied to calculate a vector OF. And constructing a cutting surface by using the vector OF and the vector OD, and taking the cutting surface as the cutting surface OF the arched building.

(4) And determining target reinforcement line corresponding to the arched building three-dimensional model based on the reference reinforcement line.

When the degree of curvature of both sides is less than the preset degree of curvature, the arched building can be cut using the vertical cutting plane. The target reinforcement distribution line is the line along which the reinforcing steel bars are distributed, and the reinforcing steel bars can be distributed along the target reinforcement distribution line. The target reinforcement line and the reference reinforcement line are perpendicular to each other, and vertical operation is performed on the reference reinforcement line, so that the target reinforcement line corresponding to the arched building can be obtained.

(5) And determining a cutting surface corresponding to the arched building three-dimensional model based on the target reinforcement distribution line and the second cutting vector corresponding to the target reinforcement distribution line.

The electronic equipment can identify the target rib distributing line, determine the direction of the target rib distributing line, calculate a second tangent vector in the direction consistent with the direction of the target rib distributing line, and take the second tangent vector as a first direction vector. Obtaining a vector perpendicular to the second tangent vector as a second direction vector, and generating a cutting surface corresponding to the arched building three-dimensional model by combining the first direction vector and the second direction vector, wherein the specific steps are as follows:

(51) and determining a second tangent vector consistent with the direction of the target reinforcing line based on the starting point and the end point of the target reinforcing line.

The electronic equipment can identify the target rib arrangement line and determine a starting point and an end point corresponding to the target rib arrangement line. The direction of the target tendon-laying line can be determined by taking the starting point or the end point of the target tendon-laying line as a reference point. According to the starting point and the end point of the target reinforcement line, a second tangent vector in the direction consistent with the direction of the target reinforcement line can be obtained through calculation, and the second tangent vector is used as a first direction vector.

(52) And taking the second tangent vector as a first direction vector and taking the vertical direction of the three-dimensional coordinate system as a second direction vector.

And determining a vertical vector corresponding to the first direction vector, namely the vertical direction of the three-dimensional coordinate system by taking the second tangent vector as the first direction vector. For example, a vertical direction Z axis of the three-dimensional coordinate system (X, Y, Z) is taken as the second direction vector.

(53) And obtaining a cutting surface corresponding to the arched building three-dimensional model based on the first direction vector and the second direction vector.

A cutting plane can be constructed based on the first direction vector and the second direction vector, and the cutting plane is used as a cutting plane of the arched building. For example, AB is a rib line, where a is the starting point of the rib line and B is the ending point of the rib line. And taking the point A as a reference point, and obtaining a tangent vector MN of the point B on the point AB, wherein the direction of the tangent vector MN is consistent with the direction of the reinforcing wire, the Z axis is a second direction vector, and the size ranges of the first direction vector and the second direction vector are (-100000, 100000). And constructing a cutting surface of the arched building based on the first direction vector and the second direction vector.

It should be noted that: the cutting surface can also be constructed according to the stress bar steel wire, any point on the stress bar steel wire is selected, and the tangent vector (first direction vector) of the point on the stress bar steel wire is calculated. And rotating the tangent vector by 90 degrees anticlockwise to obtain a normal vector (a second direction vector) perpendicular to the tangent vector, and constructing a cutting surface for cutting the arched building based on the obtained tangent vector and the normal vector.

And S22, respectively determining the stressed reinforcement lines corresponding to at least two parts. For a detailed description, refer to the related description of step S12 corresponding to the above embodiment, and the detailed description is omitted here.

And S23, generating a steel bar three-dimensional model based on the stressed steel bar line. For a detailed description, refer to the related description of step S13 corresponding to the above embodiment, and the detailed description is omitted here.

In the method for determining the three-dimensional model of the steel bar of the arched building, the reference steel bar line of the arched building is obtained, the cutting surface of the three-dimensional model of the arched building is determined based on the reference steel bar line, and the cutting surface is used for cutting the three-dimensional model of the arched building, so that at least two cutting parts corresponding to the three-dimensional model of the arched building are obtained. The cutting surface is used for cutting the arched building three-dimensional model for multiple times, the obtained steel bar line is ensured to be more in line with the actual shape of the arched building, and the steel bar three-dimensional model obtained through calculation of the steel bar line is further ensured to be more in line with the actual shape of the arched building. Through the both sides bending degree that obtains the arch building, construct corresponding cutting plane based on the both sides bending degree of difference to avoid the unable problem that uses the cutting plane to carry out the vertical cut of arch building, and then guaranteed that the cutting body that the cutting arch building obtained can carry out correct projection, in order to obtain the reinforcing bar line that accords with the actual shape of arch building.

The method comprises the steps of determining the middle point of a reference reinforcement line based on the reference reinforcement line, calculating the tangent vector of the middle point on the reference reinforcement line, determining the original reinforcement line according to the tangent vector and the reinforcement distribution range of the arched building, adjusting the original reinforcement line according to a preset algorithm, and determining a target reinforcement line, so that the accuracy of the length of the reinforcement line is ensured, the distribution position of the stressed reinforcement line determined based on the target reinforcement line is ensured, the distribution position of the stressed reinforcement line is more accurate, the reinforcement quantity required by the arched building can be accurately calculated, and the calculated reinforcement quantity is ensured to meet the reinforcement quantity corresponding to the actual building.

In this embodiment, a method for determining a three-dimensional model of a steel bar of an arched building is provided, which can be used in the above-mentioned electronic devices, such as a mobile phone, a computer, a tablet computer, and the like, and fig. 3 is a flowchart of a method for determining a three-dimensional model of a steel bar of an arched building according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:

and S31, cutting the arch building three-dimensional model, and dividing the arch building three-dimensional model into at least two parts. For a detailed description, refer to the related description of step S21 corresponding to the above embodiment, and the detailed description is omitted here.

And S32, respectively determining the stressed reinforcement lines corresponding to at least two parts.

Specifically, the step S32 may include the following steps:

s321, at least two projection polygons corresponding to the two parts are respectively obtained.

The constructed cutting surface is used for cutting the arched building three-dimensional model, so that at least two parts of cutting bodies corresponding to the arched building three-dimensional model can be obtained, the side projection is carried out on the cutting bodies corresponding to the parts, and the projection polygon corresponding to the parts of the arched building three-dimensional model can be obtained.

And S322, respectively determining an upper edge line and a lower edge line corresponding to the at least two parts based on the projected polygon.

The projection polygon obtained by projecting the cutting bodies corresponding to all parts to the side surface comprises an upper sideline and a lower sideline. The electronic equipment can determine the upper sideline and the lower sideline corresponding to the projection polygon by identifying the projection polygon.

And S323, taking the upper edge line and the lower edge line corresponding to at least two parts as stressed rib lines corresponding to at least two parts, wherein the stressed rib lines are two-dimensional stressed rib lines.

The stress bar steel wire comprises a gluten and a bottom bar, wherein the upper edge of a projection polygon obtained by the electronic equipment identification is used as the gluten, and the lower edge is used as the bottom bar. The stress bar reinforcing line is a projection polygon, so the stress bar reinforcing line is a two-dimensional line.

And S33, generating a steel bar three-dimensional model based on the stressed steel bar line.

Specifically, the step S33 may include the following steps:

and S331, identifying the stressed rib line and determining the line type of the stressed rib line, wherein the line type comprises a straight line shape and/or an arc line shape.

The stress bar reinforcing line is a side projection polygon after the arched building is cut, the side projection polygon conforms to the actual shape of the arched building, and the stress bar reinforcing line can comprise an arc line and a straight line. When the electronic equipment obtains the stressed rib wire, the electronic equipment can identify the stressed rib wire and determine the line type of the stressed rib wire.

And S332, generating a steel bar three-dimensional model based on the line type and the cutting surface.

Based on different line types of the stressed reinforcement wire, the stressed reinforcement wires of different line types are respectively mapped to the coordinate system where the cutting surface is located, and then the three-dimensional line of the stressed reinforcement wire of the line type in the coordinate system where the cutting surface is located can be determined. And arranging the obtained three-dimensional lines in a rib arrangement range to generate a steel bar three-dimensional model corresponding to the arch building three-dimensional model.

Specifically, for a straight stressed reinforcement wire, the step S332 may include the following steps:

(i) and acquiring the starting point and the end point of the linear stressed reinforcement line.

The electronic equipment judges whether the stressed rib line is a straight stressed rib line or an arc stressed rib line or a combination of the straight stressed rib and the arc stressed rib line by identifying the stressed rib line. When the electronic equipment determines that the stressed rib line is a linear stressed rib line, identifying a starting point and an end point of the linear stressed rib line, and further determining a starting point coordinate and an end point coordinate of the linear stressed rib line.

(ii) And obtaining a three-dimensional model of the steel bar based on the starting point and the end point of the straight stressed steel bar line and the coordinate system where the cutting surface is located.

Because the linear stressed rib line is a two-dimensional line segment, namely the starting point and the end point of the linear stressed rib line only have an X value and a Y value in a two-dimensional coordinate system (X, Y), the linear stressed rib line needs to be converted into a three-dimensional line, namely the linear stressed rib line is mapped to the three-dimensional coordinate system (X, Y, Z) where the cutting surface is located, the Z value corresponding to the stressed rib line is calculated to generate the three-dimensional line, and the three-dimensional line is arranged to generate the three-dimensional model of the steel bar.

Specifically, the implementation steps are as follows:

(a) and mapping the starting point and the end point of the linear stressed rib line to a coordinate system where the cutting surface is located, and respectively calculating to obtain a first three-dimensional starting point and a first three-dimensional end point corresponding to the starting point and the end point of the linear stressed rib line.

And (3) mapping the coordinates of the starting point and the ending point of the linear stressed reinforcement wire to the coordinate system of the cutting surface. And taking the coordinate system (X, Y and Z) of the cutting surface as a reference, and taking the Z value of the coordinate system of the cutting surface as the Z values of the starting point and the end point of the linear stressed reinforcement wire to obtain three-dimensional coordinates corresponding to the starting point and the end point of the linear stressed reinforcement wire, namely a first three-dimensional starting point and a first three-dimensional end point.

(b) And connecting the first three-dimensional starting point and the first three-dimensional end point to obtain a three-dimensional line corresponding to the linear stressed reinforcement wire.

And connecting the first three-dimensional starting point and the first three-dimensional end point corresponding to the stressed rib wire to generate a linear three-dimensional wire corresponding to the stressed rib wire. And sequentially calculating to obtain the three-dimensional lines corresponding to the stress reinforcement lines.

(c) And arranging three-dimensional lines in a reinforcement arrangement range corresponding to the arch-shaped building three-dimensional model to generate a reinforcement three-dimensional model.

And sequentially arranging the three-dimensional lines in the reinforcement arrangement range corresponding to the arch-shaped building three-dimensional model according to the arrangement positions to obtain the reinforcement three-dimensional model corresponding to the arch-shaped building three-dimensional model.

For the arc-shaped stressed reinforcement wire, the step S332 may include the following steps:

(i) and acquiring the starting point, the terminal point and the circle center of the arc-shaped stress bar reinforcing steel wire.

When the electronic equipment determines that the stressed rib line is the arc-shaped stressed rib line, the starting point and the end point of the arc-shaped stressed rib line are identified, the circle center of the arc-shaped stressed rib line is determined according to the starting point and the end point of the arc-shaped stressed rib line, and then the starting point coordinate, the end point coordinate and the circle center coordinate of the arc-shaped stressed rib line are determined.

(ii) And obtaining a three-dimensional model of the steel bar based on the starting point, the end point and the circle center of the arc-shaped stressed steel bar line and the coordinate system where the cutting surface is located.

Because the arc-shaped stressed rib steel wire is a two-dimensional line segment, namely the starting point, the end point and the circle center of the arc-shaped stressed rib steel wire only have an X value and a Y value in a two-dimensional coordinate system (X, Y), the arc-shaped stressed rib steel wire needs to be converted into a three-dimensional line, namely the arc-shaped stressed rib steel wire is mapped to the three-dimensional coordinate system (X, Y, Z) where the cutting surface is located, the Z value corresponding to the stressed rib steel wire is calculated to generate the three-dimensional line, and the three-dimensional line is arranged to generate the three.

Specifically, the implementation steps are as follows:

(a) and mapping the starting point, the end point and the circle center of the arc-shaped stressed rib wire to a coordinate system where the cutting surface is located, and respectively calculating to obtain the starting point, the end point, a second three-dimensional starting point, a second three-dimensional end point and a three-dimensional circle center corresponding to the circle center of the arc-shaped stressed rib wire.

And mapping the coordinates of the starting point, the ending point and the circle center of the arc-shaped stressed reinforcement line to the coordinate system of the cutting surface. And taking the coordinate system (X, Y and Z) of the cutting surface as a reference, using the Z value of the coordinate system of the cutting surface as the Z values of the starting point and the ending point of the arc-shaped stressed reinforcement wire to obtain three-dimensional coordinates corresponding to the starting point and the ending point of the arc-shaped stressed reinforcement wire, namely a second three-dimensional starting point and a second three-dimensional ending point, and calculating a three-dimensional circle center corresponding to the circle center coordinate according to the second three-dimensional starting point and the second three-dimensional ending point.

(b) And connecting the second three-dimensional starting point and the second three-dimensional end point based on the three-dimensional circle center to form a three-dimensional line corresponding to the arc-shaped stress bar reinforcing steel line.

And connecting the second three-dimensional starting point and the second three-dimensional end point by taking the three-dimensional circle center as the circle center to obtain a space arc line between the second three-dimensional starting point and the second three-dimensional end point, namely a three-dimensional line corresponding to the arc-shaped stress bar steel wire.

The method for determining the steel bar three-dimensional model of the arched building provided by the embodiment of the invention is characterized in that the arched building three-dimensional model is cut by a cutting surface to obtain a projection polygon on the side surface of the arched building three-dimensional model, an upper edge line and a lower edge line are determined based on the projection polygon, and the upper edge line and the lower edge line are used as stress bar steel bar lines. The method determines the stress bar reinforcing line in a projection polygon mode, and ensures that the stress bar reinforcing line conforms to the actual shape of the arched building. The three-dimensional lines of the reinforcing steel bar line are generated by identifying the line types of the stressed reinforcing steel bar line, calculating the three-dimensional points corresponding to the reinforcing steel bar line according to the cutting surface coordinate system and connecting the three-dimensional points, so that the three-dimensional lines are more practical, and the three-dimensional lines are sequentially distributed in the reinforcement distribution range of the arch building three-dimensional model to obtain the reinforcing steel bar three-dimensional model corresponding to the arch building, so that the reinforcing steel bar three-dimensional model is more practical.

In this embodiment, a device for determining a three-dimensional model of a steel bar of an arched building is also provided, and the device is used to implement the foregoing embodiments and preferred embodiments, which have already been described and will not be described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

The present embodiment provides an apparatus for determining a three-dimensional model of a reinforcement bar of an arch-shaped building, as shown in fig. 6, including:

and the dividing module 41 is used for cutting the arched building three-dimensional model and dividing the arched building three-dimensional model into at least two parts. For details, refer to the corresponding related description of the above method embodiments, and are not repeated herein.

And the determining module 42 is used for respectively determining the stressed reinforcement lines corresponding to at least two parts. For details, refer to the corresponding related description of the above method embodiments, and are not repeated herein.

And the generating module 43 is configured to generate a three-dimensional model of the steel bar based on the stressed steel bar line. For details, refer to the corresponding related description of the above method embodiments, and are not repeated herein.

The device for determining the three-dimensional reinforcing steel bar model of the arched building provided by the embodiment obtains the reinforcing steel bar lines corresponding to the cutting parts of the three-dimensional arched building model by cutting the three-dimensional arched building model, obtains the three-dimensional reinforcing steel bar model corresponding to the three-dimensional arched building model by calculating the reinforcing steel bar lines of the cutting parts, displays the constructed three-dimensional reinforcing steel bar model in a three-dimensional mode, avoids overlarge difference between the three-dimensional reinforcing steel bar model and an actual building, and ensures that the constructed three-dimensional reinforcing steel bar model conforms to the actual shape of the arched building.

The means for determining the three-dimensional model of the rebar of the arched structure in this embodiment is in the form of a functional unit, where the unit is an ASIC circuit, a processor and memory executing one or more software or fixed programs, and/or other devices that can provide the above-described functionality.

Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.

The embodiment of the invention also provides a mobile terminal which is provided with the device for determining the three-dimensional model of the steel bar of the arched building shown in the figure 6.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a terminal according to an alternative embodiment of the present invention, and as shown in fig. 7, the terminal may include: at least one processor 501, such as a CPU (Central Processing Unit), at least one communication interface 503, memory 504, and at least one communication bus 502. Wherein a communication bus 502 is used to enable connective communication between these components. The communication interface 503 may include a Display (Display) and a Keyboard (Keyboard), and the optional communication interface 503 may also include a standard wired interface and a standard wireless interface. The Memory 504 may be a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 504 may optionally be at least one storage device located remotely from the processor 501. Wherein the processor 501 may be in connection with the apparatus described in fig. 6, an application program is stored in the memory 504, and the processor 501 calls the program code stored in the memory 504 for performing any of the above-mentioned method steps.

The communication bus 502 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 502 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.

The memory 504 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD) or a solid-state drive (english: SSD); the memory 504 may also comprise a combination of the above-described types of memory.

The processor 501 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of CPU and NP.

The processor 501 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.

Optionally, the memory 504 is also used to store program instructions. The processor 501 may call program instructions to implement the method for determining the three-dimensional model of the steel bars of the arched building as shown in the embodiments of fig. 1 to 3 of the present application.

The embodiment of the invention also provides a non-transitory computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the processing method of the determination method of the steel bar three-dimensional model of the arched building in any method embodiment. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for determining a three-dimensional model of a steel bar of an arch building is characterized by comprising the following steps:

cutting an arch building three-dimensional model, and dividing the arch building three-dimensional model into at least two parts;

respectively determining stressed reinforcement lines corresponding to the at least two parts;

and generating a steel bar three-dimensional model based on the stressed steel bar line.

2. The method of claim 1, wherein said cutting the arcuate building three-dimensional model to divide the arcuate building three-dimensional model into at least two portions comprises:

acquiring a reference reinforcement line of the arched building three-dimensional model;

determining a cutting surface of the arched building three-dimensional model based on the reference reinforcement line;

and cutting the arched building three-dimensional model into at least two parts through the cutting surface.

3. The method of claim 2, wherein said determining a cut plane for the arched building three-dimensional model based on the reference reinforcement line comprises:

identifying the three-dimensional model of the arched building, and determining the degree of bending of two sides of the three-dimensional model of the arched building;

judging whether the bending degree of the two sides is greater than a preset bending degree or not;

and when the bending degrees of the two sides are greater than the preset bending degree, determining a cutting surface corresponding to the arched building three-dimensional model based on the bending degrees of the two sides and the reference reinforcing steel line.

4. The method of claim 3, wherein determining a cutting plane corresponding to the arched building three-dimensional model based on the two-sided bending degree and the reference reinforcement line when the two-sided bending degree is greater than a preset bending degree comprises:

determining target reinforcement line corresponding to the arched building three-dimensional model based on the reference reinforcement line;

acquiring arrangement position points of stress reinforcement lines of the arched building three-dimensional model;

and determining a cutting surface corresponding to the arched building three-dimensional model based on the target reinforcement line and the arrangement position points.

5. The method of claim 4, wherein the determining a cutting surface corresponding to the arched building three-dimensional model based on the target tendon line and the arrangement position point comprises:

calculating a first tangent vector of the arrangement position points of the stressed reinforcement wire on the target reinforcement wire;

and determining a cutting surface corresponding to the arched building three-dimensional model based on the first tangent vector.

6. The method of claim 5, wherein determining a corresponding cut plane of the arched building three-dimensional model based on the first cut vector comprises:

taking the first tangent vector as a first direction vector, and calculating a rotation vector corresponding to the counterclockwise rotation of the first direction vector by 90 degrees;

calculating a cross product of the first direction vector and the rotation vector to obtain a second direction vector;

and obtaining a cutting surface corresponding to the arched building three-dimensional model based on the first direction vector and the second direction vector.

7. The method of claim 3, wherein said determining a cut plane for the arched building three-dimensional model based on the reference reinforcement line further comprises:

when the bending degree of the two sides is smaller than the preset bending degree, determining target reinforcement line corresponding to the arched building three-dimensional model based on the reference reinforcement line;

and determining a cutting surface corresponding to the arched building three-dimensional model based on the target reinforcement line and a second cutting vector corresponding to the target reinforcement line.

8. The method of claim 7, wherein determining a cutting plane corresponding to the arched building three-dimensional model based on the target tendon line and a second cutting vector corresponding to the target tendon line comprises:

determining a second tangent vector consistent with the direction of the target reinforcement line based on the starting point and the end point of the target reinforcement line;

taking the second tangent vector as a first direction vector, and taking the vertical direction of the three-dimensional coordinate system as a second direction vector;

9. The method of any one of claims 2-8, wherein generating the three-dimensional model of rebar based on stressed rebar lines comprises:

identifying the stressed reinforcement steel wire and determining the line type of the stressed reinforcement steel wire, wherein the line type comprises a straight line shape and/or an arc line shape;

and generating the three-dimensional model of the steel bar based on the line type and the cutting surface.

10. The method of claim 9, wherein for a straight stressed tendon wire, said generating the three-dimensional model of the tendon based on the line type comprises:

acquiring a starting point and an end point of the linear stressed reinforcement line;

and obtaining the three-dimensional model of the steel bar based on the starting point and the end point of the linear stressed steel bar line and the coordinate system where the cutting surface is located.

11. The method according to claim 10, wherein the obtaining of the three-dimensional model of the steel bar based on the starting point and the end point of the straight stressed steel bar line and the coordinate system of the cutting surface comprises:

mapping the starting point and the end point of the linear stressed reinforcement wire to a coordinate system where the cutting surface is located, and respectively calculating to obtain a first three-dimensional starting point and a first three-dimensional end point corresponding to the starting point and the end point of the linear stressed reinforcement wire;

connecting the first three-dimensional starting point and the first three-dimensional end point to obtain a three-dimensional line corresponding to the linear stressed reinforcement bar line;

and arranging the three-dimensional lines in a reinforcement arrangement range corresponding to the arched building three-dimensional model to generate the reinforcement three-dimensional model.

12. The method of claim 9, wherein for an arc shaped stressed tendon wire, said generating the three-dimensional model of the tendon based on the wire type comprises:

acquiring a starting point, an end point and a circle center of the arc-shaped stress bar reinforcing steel wire;

and obtaining the three-dimensional model of the steel bar based on the starting point, the end point and the circle center of the arc-shaped stressed steel bar line and the coordinate system where the cutting surface is located.

13. The method of claim 12, wherein obtaining the three-dimensional model of the reinforcement based on the start point, the end point, and the center of the arc-shaped stressed reinforcement line and the coordinate system of the cutting surface comprises:

mapping the starting point, the end point and the circle center of the arc-shaped stressed rib wire to a coordinate system where the cutting surface is located, and respectively calculating to obtain the starting point, the end point, a second three-dimensional starting point, a second three-dimensional end point and a three-dimensional circle center, wherein the second three-dimensional starting point, the second three-dimensional end point and the three-dimensional circle center correspond to the circle center;

connecting the second three-dimensional starting point and the second three-dimensional end point based on the three-dimensional circle center to form a three-dimensional line corresponding to the arc-shaped stress bar reinforcing steel line;

14. The method according to claim 4 or 7, wherein the determining a target reinforcement line corresponding to the arch-shaped building based on the reference reinforcement line comprises:

determining a third tangent vector of the midpoint of the reference reinforcement line on the reference reinforcement line based on the reference reinforcement line;

and determining the target reinforcement line according to the third tangent vector and the reinforcement distribution range of the arched building three-dimensional model.

15. The method of claim 14, wherein determining the target tendon-arrangement line based on the third tangent vector and a tendon-arrangement range of the arched building three-dimensional model comprises:

rotating the third tangent vector by 90 degrees, and constructing a straight line segment by taking the middle point of the reference reinforcement line as a starting point;

extending the intersection of the straight line section and the reinforcement arrangement range, and connecting the intersection points of the straight line section and the reinforcement arrangement range to obtain an original reinforcement arrangement line corresponding to the reference reinforcement line;

and determining the target reinforcement line based on the original reinforcement line and the stressed reinforcement line.

16. The method of claim 15, wherein determining the target tendon run based on the original tendon run and the stressed tendon run comprises:

determining a first range corresponding to the original reinforcement wire arrangement and a second range corresponding to the stressed reinforcement wire by using a preset algorithm;

determining an intersection point of the first range and the second range based on the first range and the second range;

and adjusting the original rib arrangement lines based on the intersection points, and determining target rib arrangement lines corresponding to the rib arrangement range of the arched building three-dimensional model.

17. The method of claim 1, wherein the separately determining the at least two partially corresponding stressed tendon lines comprises:

respectively acquiring projection polygons corresponding to the at least two parts;

respectively determining an upper edge line and a lower edge line corresponding to the at least two parts based on the projected polygon;

and taking the upper edge line and the lower edge line corresponding to the at least two parts as stressed rib lines corresponding to the at least two parts, wherein the stressed rib lines are two-dimensional stressed rib lines.

18. An apparatus for determining a three-dimensional model of rebar of an arch-shaped building, comprising:

the segmentation module is used for cutting the arched building three-dimensional model and segmenting the arched building three-dimensional model into at least two parts;

the determining module is used for respectively determining stressed reinforcement lines corresponding to the at least two parts;

and the generating module is used for generating the steel bar three-dimensional model based on the stressed steel bar line.

19. An electronic device, comprising:

a memory and a processor, wherein the memory and the processor are connected with each other in a communication way, the memory stores computer instructions, and the processor executes the computer instructions to execute the method for determining the three-dimensional model of the steel bars of the arched building according to any one of claims 1-17.

20. A computer-readable storage medium storing computer instructions for causing a computer to perform the method for determining a three-dimensional model of rebars of an arch-shaped building according to any one of claims 1 to 17.