Pipeline expansion diagram drawing method, device, computer equipment and storage medium

Abstract

The present invention provides a method for drawing a straight pipe expansion diagram, comprising the following steps: S1, inputting pipeline parameters, and selecting whether to "expand based on the center line of the pipe wall thickness", and then verifying various parameters to ensure that calculations can be performed; S2, respectively calculating the coordinates of the head end equal-division point and the tail end equal-division point coordinates; S3, drawing a pipeline expansion diagram image according to the head end equal-division point coordinates and the tail end equal-division point coordinates. The present invention forms a set formula group through mathematical principles, and can calculate the coordinates of the head end and tail end equal-division points of its expansion diagram according to the input pipeline parameters, and can connect these equal-division point coordinates to form a pipeline expansion diagram, without the need to draw the expansion diagram manually, thereby greatly simplifying the process of drawing the pipeline expansion diagram, while reducing the amount of human labor, and correspondingly reducing the errors that may exist in the manual drawing process.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe fitting processing, and in particular to a method, a device, a computer device and a storage medium for drawing a pipeline development diagram. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid flows from the high pressure part of the pipeline to the low pressure part after being pressurized by blowers, compressors, pumps and boilers. It can also be conveyed by the fluid's own pressure or gravity. Pipelines are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices.

[0003] Pipes are also widely used on ships, or they are indispensable and important components. Ship pipelines are used to connect various mechanical equipment on ships, and are used to transmit water, oil, gas and other related working fluids. There are two major categories of ship pipelines: power pipelines and ship system pipelines. Power pipelines are various pipelines used to serve the main engine and auxiliary engine, including fuel oil, lubricating oil, cooling water, compressed air, exhaust, waste heat and other pipelines. Ship system pipelines are to improve the ship's anti-sinking and stability, and to meet the normal living needs of crew members and passengers. There are many ship systems, including water supply systems for supplying seawater and fresh water to the entire ship; ballast water systems for regulating ship ballast; bilge water discharge systems for removing bilge water; compressed air systems for providing compressed air to the entire ship; fire fighting systems for fire extinguishing, etc. Most of the equipment used in these systems, such as pumps and compressors, are electric and can be automatically controlled.

[0004] In ship pipelines, exhaust pipes and ventilation pipes with larger diameters are usually rolled into shape by steel plates, and then the seams are welded. These exhaust pipes and ventilation pipes have various shapes, such as round pipes, shrimp bends, reducers, square to round, branch pipes, etc. In the traditional production process, these exhaust pipes and ventilation pipes of various shapes are drawn on the steel plate by workers after calculation before rolling, and then the steel plate is manually cut into shape according to the expansion line. After the introduction of CNC cutting equipment, the work of drawing the expansion line is done by technicians who manually draw the expansion drawing on the computer, and then cut it by the CNC cutting machine after nesting. Although the work of technicians manually drawing the expansion drawing on the computer is easier than that of workers drawing it on site, these tasks are still large and cumbersome, and are also prone to various unexpected deviations due to human factors. Therefore, a simpler and more automated drawing method is needed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a pipeline expansion diagram drawing method, device, computer equipment and storage medium, which solves the problems in the prior art that the manual drawing of pipeline expansion diagrams is very cumbersome and labor-intensive, and is prone to various unexpected deviations due to human factors.

[0006] In a first aspect, the present invention provides a method for drawing a straight pipe expansion diagram, comprising the following steps:

[0007] S1. Input the pipeline parameters and select whether to "expand based on the center line of the pipe wall thickness". Then check the parameters to ensure that the calculation can be performed.

[0008] S2, respectively calculating the coordinates of the head end dividing point and the tail end dividing point;

[0009] S3. Draw a pipeline expansion diagram image according to the coordinates of the head end equal division point and the tail end equal division point.

[0010] Furthermore, in step S1, the parameters to be verified include outer diameter, length and plate thickness. First, verify that the outer diameter parameter cannot be 0, then verify that the length parameter cannot be 0. At the same time, when "expand based on the center line of the tube wall thickness" is selected, verify that the plate thickness parameter cannot be 0.

[0011] Furthermore, in step S1, the parameter of the number of equally divided points needs to be checked, and the number of equally divided points must be an even number.

[0012] Furthermore, in step S1, when "expand based on the center line of tube wall thickness" is selected, the actual outer diameter = input outer diameter - plate thickness.

[0013] Furthermore, in step S2, before the calculation starts, it is first determined whether the head end of the straight pipe is beveled. If the head end is not beveled, the X coordinate of the head end of the bisector line is 0; if the head end is beveled, the X coordinate of the head end of the bisector point is calculated.

[0014] Furthermore, the method for calculating the X coordinates of the equally divided points at the head end in step S2 is as follows:

[0015] Calculate the starting angle:

[0016] startAngle = m_Gap / m_OD;

[0017] Among them, startAngle is the starting angle, m_Gap is the weld gap, and m_OD is the outer diameter;

[0018] Calculate the angle of each segment:

[0019] subAngle=(π-startAngle*2) / m_Count*2;

[0020] Where subAngle is the angle of each equal part, and m_Count is the number of equal parts.

[0021] Then calculate the cumulative angle:

[0022] deltaAngle1=startAngle+subAngle*i, i=1, 2, 3,...m_Count;

[0023] Among them, deltaAngle1 is the cumulative equally divided angle at the beginning, and n is a natural number;

[0024] Then calculate the X coordinate of the dividing point corresponding to each cumulative dividing angle according to the cumulative dividing angle:

[0025] aryX1=[m_OD / 2*cos(deltaAngle1)]*tan(m_Angle1 / 180*π);

[0026] Among them, aryX1 is the X coordinate of the equal-division point at the beginning, and m_Angle1 is the bevel angle at the beginning.

[0027] Furthermore, the method for calculating the X coordinates of the equally divided points of the tail end in step S2 is as follows:

[0028] Calculate the starting angle:

[0029] startAngle = m_Gap / m_OD;

[0030] Among them, startAngle is the starting angle, m_Gap is the weld gap, and m_OD is the outer diameter;

[0031] Calculate the angle of each segment:

[0032] subAngle=(π-startAngle*2) / m_Count*2;

[0033] Where subAngle is the angle of each equal part, and m_Count is the number of equal parts.

[0034] Calculate the current accumulated equally divided angle:

[0035] deltaAngle'=startAngle+m_RoAngle / 180*π;

[0036] Among them, deltaAngle' is the current accumulated equally divided angle, and m_RoAngle is the bevel angle;

[0037] Determine whether the end is beveled. If the end is not beveled, m_Angle2 is 0, and the X coordinates of the equal points of the end are all length m_L;

[0038] If the end is beveled, that is, m_Angle2 is not 0, first calculate the cumulative angle of equal division:

[0039] deltaAngle2=deltaAngle'+subAngle*i, (i=1, 2, 3,...m_Count);

[0040] Among them, deltaAngle2 is the cumulative equally divided angle at the end, and n is a natural number;

[0041] Calculate the offset corresponding to each cumulative equal division of the angle:

[0042] offset=-[m_OD / 2*cos(deltaAngle2)]*tan(m_Angle2 / 180*π);

[0043] Where, offset is the offset, and m_Angle2 is the end bevel angle;

[0044] Finally, calculate the X coordinate of the tail end dividing point:

[0045] aryX2 = (m_L + offset);

[0046] Among them, aryX2 is the X coordinate of the tail end equal division point, and m_L is the length of the straight pipe.

[0047] Furthermore, the Y coordinates of the corresponding equally divided points at the head end and the tail end in step S2 are the same, and the calculation method thereof is as follows:

[0048] Calculate the arc length of a circle:

[0049] dY = π*m_OD-m_Gap;

[0050] Among them, dY is the arc length of the circle, m_OD is the outer diameter, and m_Gap is the weld gap;

[0051] Then calculate the equally divided arc lengths:

[0052] dYdivide=dY / mCount;

[0053] Among them, dYdivide is the arc length divided equally, and m_Count is the number of equal divisions;

[0054] Then the Y coordinate of each equally divided point is:

[0055] y=dYdivide*(i+1), (i=1, 2, 3,...m_Count).

[0056] Furthermore, the method for drawing the pipeline expansion diagram image in step S3 is as follows:

[0057] First, create four layers and set the corresponding linear properties for these four layers, which are thick solid line, thin solid line, center line and text.

[0058] Then, according to the sequence number of the current dividing point, draw a horizontal line with the same Y coordinate: if the current dividing point is exactly half of the total dividing points, draw the center line; if the current dividing point is not half of the total dividing points, draw a thin solid line;

[0059] Then, according to the bevel angles of the beginning and the end, draw the lines connecting the points at the beginning or the end:

[0060] If the first end bevel is not 0, a thick solid line is drawn according to the coordinates of the points equally divided at the first end; if the first end bevel is 0, a thick solid line is drawn with the first and last points at the first end;

[0061] If the end bevel is not 0, a thick solid line is drawn according to the coordinates of the end points; if the end bevel is 0, a thick solid line is drawn according to the first and last points of the end;

[0062] Finally, add text description to the completed pattern, including ship number, serial number, name, material, plate thickness, and quantity.

[0063] In a second aspect, the present invention provides a straight pipe expansion diagram drawing device, comprising:

[0064] Input module, which is used to input pipeline parameters and select whether to "expand based on the center line of pipe wall thickness", and then verify various parameters to ensure that calculation can be performed;

[0065] A calculation module, which is used to calculate the coordinates of the head end equal division point and the tail end equal division point respectively;

[0066] The drawing module is used to draw the pipeline expansion diagram image according to the coordinates of the head end equal division point and the tail end equal division point.

[0067] In a third aspect, the present invention proposes a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any one of the methods of claims 1 to 7 when executing the computer program.

[0068] In a fourth aspect, the present invention provides a readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of any one of the methods of claims 1 to 7 when executed by a processor.

[0069] Compared with the prior art, the present invention has the following beneficial effects:

[0070] The present invention forms a set formula group through mathematical principles, and can calculate the coordinates of the head end and tail end equal-division points of its expansion diagram according to the input pipeline parameters, and can connect these equal-division point coordinates to form the pipeline expansion diagram, without the need to draw the expansion diagram manually, thereby greatly simplifying the process of drawing the pipeline expansion diagram, while reducing the manual labor, and correspondingly reducing the errors that may exist in the manual drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 The software interface diagram of the embodiment of the present invention.

[0072] Figure 2 This is a drawing effect diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0073] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0074] The embodiment of the present invention provides a method for drawing a straight pipe expansion diagram, which specifically includes the following steps:

[0075] S1. Input the pipeline parameters and select whether to "expand based on the center line of the pipe wall thickness". When "expand based on the center line of the pipe wall thickness" is selected, the actual outer diameter = input outer diameter - plate thickness. Then check the outer diameter, length and plate thickness parameters. First, check that the outer diameter parameter cannot be 0, then check that the length parameter cannot be 0. At the same time, when "expand based on the center line of the pipe wall thickness" is selected, check the plate thickness parameter, which cannot be 0. Then check the number of equal points. The number of equal points must be an even number.

[0076] S2. Calculate the coordinates of the head end and tail end dividing points respectively. Before the calculation starts, first determine whether the head end of the straight pipe is cut. If the head end is not cut, the X coordinates of the head end of the dividing line are all 0; if the head end is cut, start calculating the X coordinates of the head end of the dividing point. Specifically:

[0077] (1) The method for calculating the X coordinates of the points at the head end is as follows:

[0078] Calculate the starting angle:

[0079] startAngle = m_Gap / m_OD;

[0080] Among them, startAngle is the starting angle, m_Gap is the weld gap, and m_OD is the outer diameter;

[0081] Calculate the angle of each segment:

[0082] subAngle=(π-startAngle*2) / m_Count*2;

[0083] Where subAngle is the angle of each equal part, and m_Count is the number of equal parts.

[0084] Then calculate the cumulative angle:

[0085] deltaAngle 1=startAngle+subAngle*i, i=1, 2, 3,...m_Count;

[0086] Among them, deltaAngle1 is the cumulative equally divided angle at the beginning, and n is a natural number;

[0087] Then calculate the X coordinate of the dividing point corresponding to each cumulative dividing angle according to the cumulative dividing angle:

[0088] aryX1=[m_OD / 2*cos(deltaAngle1)]*tan(m_Angle1 / 180*π);

[0089] Among them, aryX1 is the X coordinate of the equal-division point at the beginning, and m_Angle1 is the bevel angle at the beginning.

[0090] (2) The method for calculating the X coordinates of the equally divided points at the tail end is as follows:

[0091] Calculate the starting angle:

[0092] startAngle = m_Gap / m_OD;

[0093] Among them, startAngle is the starting angle, m_Gap is the weld gap, and m_OD is the outer diameter;

[0094] Calculate the angle of each segment:

[0095] subAngle=(π-startAngle*2) / m_Count*2;

[0096] Where subAngle is the angle of each equal part, and m_Count is the number of equal parts.

[0097] Calculate the current accumulated equally divided angle:

[0098] deltaAngle'=startAngle+m_RoAngle / 180*π;

[0099] Among them, deltaAngle' is the current accumulated equally divided angle, and m_RoAngle is the bevel angle;

[0100] Determine whether the end is beveled. If the end is not beveled, m_Angle2 is 0, and the X coordinates of the equal points of the end are all length m_L;

[0101] If the end is beveled, that is, m_Angle2 is not 0, first calculate the cumulative angle of equal division:

[0102] deltaAngle2=deltaAngle'+subAngle*i, (i=1, 2, 3,...m_Count);

[0103] Among them, deltaAngle2 is the cumulative equally divided angle at the end, and n is a natural number;

[0104] Calculate the offset corresponding to each cumulative equal division of the angle:

[0105] offset=-[m_OD / 2*cos(deltaAngle2)]*tan(m_Angle2 / 180*π);

[0106] Where, offset is the offset, and m_Angle2 is the end bevel angle;

[0107] Finally, calculate the X coordinate of the tail end dividing point:

[0108] aryX2 = (m_L + offset);

[0109] Among them, aryX2 is the X coordinate of the tail end equal division point, and m_L is the length of the straight pipe.

[0110] (3) The Y coordinates of the corresponding equally divided points at the beginning and the end are the same, and the calculation method is as follows:

[0111] Calculate the arc length of a circle:

[0112] dY = π*m_OD-m_Gap;

[0113] Among them, dY is the arc length of the circle, m_OD is the outer diameter, and m_Gap is the weld gap;

[0114] Then calculate the equally divided arc lengths:

[0115] dYdivide=dY / m_Count;

[0116] Among them, dYdivide is the arc length divided equally, and m_Count is the number of equal divisions;

[0117] Then the Y coordinate of each equally divided point is:

[0118] y=dYdivide*(i+1), (i=1, 2, 3,...m_Count).

[0119] S3. Draw the pipeline expansion diagram image according to the coordinates of the head end equal division point and the tail end equal division point. The specific method is as follows:

[0120] First, create four layers and set the corresponding linear properties for these four layers, namely thick solid line, thin solid line, center line and text.

[0121] Then, according to the sequence number of the current dividing point, draw a horizontal line with the same Y coordinate: if the current dividing point is exactly half of the total dividing points, draw the center line; if the current dividing point is not half of the total dividing points, draw a thin solid line;

[0122] Then, according to the bevel angles of the beginning and the end, draw the lines connecting the points at the beginning or the end:

[0123] If the first end bevel is not 0, a thick solid line is drawn according to the coordinates of the points equally divided at the first end; if the first end bevel is 0, a thick solid line is drawn with the first and last points at the first end;

[0124] If the end bevel is not 0, a thick solid line is drawn according to the coordinates of the end points; if the end bevel is 0, a thick solid line is drawn with the first and last points of the end;

[0125] Finally, add text description to the completed pattern, including ship number, serial number, name, material, plate thickness, and quantity.

[0126] like Figure 1 As shown, in this embodiment, the above method is implemented in the form of software. The software is a secondary development software of AutoCAD. Based on the Visual Studio development platform, a windows desktop application software is written in the computer language C++ to achieve the drawing work required by this embodiment. The working interface of the software is as shown in FIG. Figure 2 There is an input box on the top for inputting various parameter values, and a button on the bottom. After inputting the parameters, click the OK button to start drawing, or click the Cancel button to cancel the drawing.

[0127] according to Figure 1 The parameters entered in the drawing result are as follows Figure 2 shown.

[0128] In a second aspect, the present invention provides a straight pipe expansion diagram drawing device, comprising:

[0129] The input module is used to input pipeline parameters and select whether to "expand based on the center line of pipe wall thickness". Then, various parameters are verified to ensure that calculations can be performed.

[0130] The calculation module is used to calculate the coordinates of the head end equal division point and the tail end equal division point respectively.

[0131] The drawing module is used to draw the pipeline expansion diagram image according to the coordinates of the head end equal division point and the tail end equal division point. When the drawing module of the present invention is working, it directly calls the result of the calculation module and draws the map in the AutoCAD software to obtain the final drawing file.

[0132] In a third aspect, the present invention proposes a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any one of the methods of claims 1 to 7 when executing the computer program.

[0133] In a fourth aspect, the present invention provides a readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of any one of the methods of claims 1 to 7 when executed by a processor.

[0134] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A method for drawing a straight pipe expansion diagram, characterized in that: The steps include: S1. Input the pipeline parameters and select whether to "expand based on the center line of the pipe wall thickness". Then check the parameters to ensure that the calculation can be performed. S2, respectively calculating the coordinates of the head end dividing point and the tail end dividing point; S3, drawing a pipeline expansion diagram image according to the coordinates of the head end equal division point and the tail end equal division point; In step S1, the parameters to be checked include outer diameter, length and plate thickness. First, check that the outer diameter parameter cannot be 0, then check that the length parameter cannot be 0. At the same time, when "expand by the center line of the tube wall thickness" is selected, check the plate thickness parameter, which cannot be 0. When "expand by the center line of the tube wall thickness" is selected, the actual outer diameter = input outer diameter - plate thickness; in step S1, the parameter of the number of equally divided points also needs to be checked, and the number of equally divided points must be an even number; In step S2, before the calculation starts, it is first determined whether the head end of the straight pipe is cut off. If the head end is not cut off, the X coordinate of the head end of the bisector line is 0; if the head end is cut off, the X coordinate of the head end of the bisector point is calculated; The method for calculating the X coordinates of the equally divided points at the head end in step S2 is as follows: Calculate the starting angle: startAngle = m_Gap / m_OD; Among them, startAngle is the starting angle, m_Gap is the weld gap, and m_OD is the outer diameter; Calculate the angle of each segment: subAngle=(π-startAngle*2) / m_Count*2; Where subAngle is the angle of each equal part, and m_Count is the number of equal parts. Then calculate the cumulative angle: DeltaAngle1=startAngle+subAngle*i, i=1, 2, 3,...m_Count; Among them, deltaAngle1 is the cumulative equally divided angle at the beginning, and n is a natural number; Then calculate the X coordinate of the dividing point corresponding to each cumulative dividing angle according to the cumulative dividing angle: aryX1=[m_OD / 2*cos(deltaAngle1)]*tan(m_Angle1 / 180*π); Among them, aryX1 is the X coordinate of the equal-division point at the head end, and m_Angle1 is the bevel angle at the head end; The method for calculating the X coordinates of the equally divided points at the tail end in step S2 is as follows: Calculate the starting angle: startAngle = m_Gap / m_OD; Among them, startAngle is the starting angle, m_Gap is the weld gap, and m_OD is the outer diameter; Calculate the angle of each segment: subAngle=(π-startAngle*2) / m_Count*2; Where subAngle is the angle of each equal part, and m_Count is the number of equal parts. Calculate the current accumulated equally divided angle: deltaAngle'=startAngle+m_RoAngle / 180*π; Among them, deltaAngle' is the current accumulated equally divided angle, and m_RoAngle is the bevel angle; Determine whether the end is beveled. If the end is not beveled, m_Angle2 is 0, and the X coordinates of the equal points of the end are all length m_L; If the end is beveled, that is, m_Angle2 is not 0, first calculate the cumulative angle of equal division: deltaAngle 2=deltaAngle'+subAngle*i, i=1, 2, 3,...m_Count; Among them, deltaAngle2 is the cumulative equally divided angle at the end, and n is a natural number; Calculate the offset corresponding to each cumulative equal division of the angle: offset=-[m_OD / 2*cos(deltaAngle2)]*tan(m_Angle2 / 180*π); Where, offset is the offset, and m_Angle2 is the end bevel angle; Finally, calculate the X coordinate of the tail end dividing point: aryX2 = (m_L + offset); Among them, aryX2 is the X coordinate of the tail end equal division point, and m_L is the length of the straight pipe; In step S2, the Y coordinates of the points corresponding to the equal divisions at the head end and the tail end are the same, and the calculation method is as follows: Calculate the arc length of a circle: dY = π*m_OD-m_Gap; Among them, dY is the arc length of the circle, m_OD is the outer diameter, and m_Gap is the weld gap; Then calculate the equally divided arc lengths: dYdivide=dY / m_Count; Among them, dYdivide is the arc length divided equally, and m_Count is the number of equal divisions; Then the Y coordinate of each equally divided point is: y=dYdivide*(i+1), i=1, 2, 3,...m_Count.

2. A straight pipe expansion diagram drawing method according to claim 1, characterized in that: The method for drawing the pipeline expansion diagram image in step S3 is as follows: First, create four layers and set the corresponding linear properties for these four layers, which are thick solid line, thin solid line, center line and text. Then, according to the sequence number of the current dividing point, draw a horizontal line with the same Y coordinate: if the current dividing point is exactly half of the total dividing points, draw the center line; if the current dividing point is not half of the total dividing points, draw a thin solid line; Then, according to the bevel angles of the beginning and the end, draw the lines connecting the points at the beginning or the end: If the bevel at the head end is not 0, a thick solid line is drawn according to the coordinates of the points equally divided at the head end; If the first end bevel is 0, a thick solid line is drawn with the first and last points of the first end; If the end bevel is not 0, a thick solid line is drawn according to the coordinates of the end equal points; If the end bevel is 0, a thick solid line is drawn with the first and last points of the end; Finally, add text description to the completed pattern, including ship number, serial number, name, material, plate thickness, and quantity.

3. A straight pipe expansion diagram drawing device based on the method of claim 1, characterized in that: include: Input module, which is used to input pipeline parameters and select whether to "expand based on the center line of pipe wall thickness", and then verify various parameters to ensure that calculation can be performed; A calculation module, which is used to calculate the coordinates of the head end equal division point and the tail end equal division point respectively; The drawing module is used to draw the pipeline expansion diagram image according to the coordinates of the head end equal division point and the tail end equal division point.

4. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 2 are implemented.

5. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 2 are implemented.

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