CN109035424B - Three-dimensional design platform equipment breaking method - Google Patents
Three-dimensional design platform equipment breaking method Download PDFInfo
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Abstract
The invention provides a device breaking method for a three-dimensional design platform, which can meet the requirements of quick and accurate breaking of linear arc devices in a design period and is compatible with linear devices and circular curve arc devices for breaking linearity in principle. The arc equipment breaking method comprises the following steps: extracting a central line segment and the radius of the arc equipment of the target arc equipment to construct a virtual arc; dividing the virtual arc according to a specified step length; an example of copying a target arc device at the current position in a three-dimensional scene is recorded as a temporary arc device, and two end points of the temporary arc device are respectively set as
And
will P 1 Respectively give the coordinate values of A of the target arc device 2 And the corresponding other side end point of the temporary arc device
And recording the temporary arc equipment obtained in the last step as new target arc equipment, repeating the steps for iteration, and finally obtaining n +1 segments of segmented arc equipment.
Description
Technical Field
The invention relates to a three-dimensional design platform equipment breaking method.
Background
The deepening design and later manual interruption operation of the linear track at the present stage are complex, and are time-consuming, but due to the constraints of design specifications, construction specifications and the like, the overlong linear track has to be interrupted according to a specific step length in the design period. At present, individual three-dimensional platforms have the function of breaking linear tracks, but no complete breaking method suitable for linear circular arc tracks is developed. Specifically, the method comprises the following steps:
the length of the rails in a common railway is usually 25 m, and the length of the rails in a station is halved. In the process of modeling in the design period, the length of the created linear track or circular arc track is the maximum length (the maximum length is far more than 25 meters) during modeling, and after the linear track or circular arc track is created, the generated model needs to be segmented according to the length in the design specification. The prior art scheme and the problems thereof are as follows: (1) The individual three-dimensional platform provides a linear member for breaking linearity, supports the linear track breaking linearity, but is complicated to operate and cannot break quickly and accurately; (2) For convenience in modeling, the circular arc tracks are usually processed according to straight line members, and the starting point, the end point and the angle are controlled when the circular arc tracks are placed, so that the linear interruption cannot reasonably interrupt the circular arc tracks belonging to the straight line members. The self-interrupting method can only be operated manually, has low efficiency and insufficient accuracy and cannot interrupt the self-defined circular arc track of the linear component.
In the existing component breaking method, the following two main breaking modes are adopted:
1. the support linear line device (shown in figure 1 as a straight line in appearance with a straight line in the center line) breaks.
2. The device supporting the circular curve arc (as shown in fig. 2, the appearance is the arc, and the central line is the circular curve) is broken.
The above method is only suitable for linear straight line equipment and circular curve arc equipment, and the linear arc equipment (as shown in fig. 3, the appearance is circular arc, and the central line is straight line) is visible everywhere in the design period, and obviously, the method is not suitable. In view of the above, there is a need for a method for breaking a linear arc device, which overcomes the above-mentioned drawbacks of the existing breaking.
Disclosure of Invention
The invention provides a device interruption method for a three-dimensional design platform, which can meet the requirements of quick and accurate interruption of linear arc devices in a design period.
Linear circular arc orbit:
the central line segment of the circular arc track is a straight line segment formed by connecting two end points of the circular arc track instead of a circular arc curve segment, and the circular arc track has a core parameter: the name of the circular arc track, IFD coding and the radius of the circular arc track; whether the circular arc track is the circular arc track can be identified according to the IFD codes, and the accurate bending degree of the circular arc track can be determined by utilizing the central line segment of the circular arc track and the radius of the circular arc track.
The solution of the invention is as follows:
the three-dimensional design platform arc equipment breaking method comprises the following steps:
1) Selecting existing arc equipment to be interrupted in the three-dimensional scene, namely target arc equipment, from the three-dimensional scene created by the project document;
2) Extracting a center line segment and a radius of the arc equipment of the target arc equipment, calculating the center of a virtual circle through the center line segment and the radius of the arc equipment, and constructing a virtual arc by using the center of the virtual circle, the radius of the arc equipment and two end points of the center line segment;
3) Dividing the virtual arc according to a specified step length, and setting two end points of the virtual arc as A 1 、A 2 The division point of the virtual circular arc is P in sequence 1 、P 2 、P 3 ……、P n-1 、P n Let A be 1 P 1 、P 1 P 2 、P 2 P 3 ……、P n-1 P n Arc length equality ofAt step size, P n A 2 Arc length of (d) is equal to or less than the step length;
4) An example of copying a target arc device at the current position in a three-dimensional scene is recorded as a temporary arc device, and two end points of the temporary arc device are respectively set as
And
modifying one side end point A of target circular arc equipment 2 A 1 is to P 1 To A is given by the coordinate value of 2 Obtaining the arc equipment A after the first breaking and cutting 1 A 2 (ii) a Modifying the corresponding other side end point of the temporary arc device to obtain P 1 To give the coordinate value of
5) Recording the temporary arc device obtained in the step 4) as a new target arc device, wherein two end points of the corresponding virtual arc are respectively
The division points of the virtual arc are sequentially
Repeating the step 4) to iterate (a new temporary arc device is generated by copying each iteration) until two end points of the new target arc device are two last points in sequence (namely only two points at the moment and no segmentation point exists), and ending the iteration;
6) Finally, n +1 segments of segmented arc equipment are obtained in total, and the name of each segment of arc equipment is renamed.
Furthermore, the three-dimensional design platform is developed for the second time, an 'interrupt' button and a text box for inputting interrupt step length are added, and the text box is limited to be capable of inputting floating point numbers only.
Further, the naming rule of each segment of arc equipment in step 6) is as follows: [ name of first segment of arc equipment ] - [ breaking times-1 ], namely, the name of the first segment of arc equipment is assumed as: NAME is named as NAME-0, NAME-1, NAME-2 \8230;, NAME- (n-1), NAME- (n) in sequence.
According to the same principle, the invention also specifically provides a three-dimensional design platform straight line equipment interruption method, which comprises the following steps:
1) Selecting existing linear equipment to be interrupted in the three-dimensional scene, namely target linear equipment, in the three-dimensional scene created by the project document;
2) Extracting starting point A of target straight line device 1 Endpoint A 2 And a length L, constructing a virtual straight line segment;
3) Dividing the virtual straight line segment according to the specified step length, and setting two end points of the virtual straight line segment as A 1 、A 2 The division points of the virtual straight line segment are sequentially P 1 、P 2 、P 3 ……、P n-1 、P n Let A be 1 P 1 、P 1 P 2 、P 2 P 3 ……、P n-1 P n Is equal to the step length, P n A 2 Is equal to or less than the step length;
4) An example of copying a target linear device at a current position in a three-dimensional scene is recorded as a temporary linear device, and two end points of the temporary linear device are respectively
And
modifying one-side end point A of target linear device 2 A 1 is to P 1 To A is given by the coordinate value of 2 Namely, the first linear device A after the cutting is broken 1 A 2 (ii) a Modifying the corresponding other side end point of the temporary straight line device to P 1 To give the coordinate value of
5) Recording the temporary linear equipment obtained in the step 4) as a new purposeA straight line marking device, two end points of the corresponding virtual straight line segment are respectively
The division points of the virtual straight line segment are sequentially
Repeating the step 4) to iterate (a new temporary linear device is generated by copying each iteration) until the two end points of the new target linear device are two last points in sequence (namely only two points at the moment and no segmentation point exists), and ending the iteration;
6) Finally, obtaining n +1 segmented linear devices in total, and renaming the name of each segment of linear device.
The corresponding software product form may be:
a storage device having stored therein a plurality of instructions adapted to be loaded by a processor and to perform steps 2) to 6) of the above method in sequence.
A terminal comprising a processor and a storage device, said storage device storing a plurality of instructions adapted to be loaded by the processor and to perform steps 2) to 6) of the above method in sequence.
Compared with the prior art, the invention has the following beneficial effects:
the invention can quickly and accurately interrupt the track in the design period according to the design specification, the construction specification and the like.
Based on the invention, the method can be extended to parameterize and design a linear track and a circular arc track. The principle of the device is compatible with a linear device and a circular curve arc device for breaking linearity, and the efficiency of breaking the linear track is higher than that of the prior art. Parametric design parameter elements of linear orbits and circular arc orbits: break length, centerline start point, centerline end point.
Drawings
Fig. 1 is a schematic view of a linear track.
Fig. 2 is a schematic diagram of a circular arc orbit of a circular curve.
Fig. 3 is a schematic view of a linear circular arc orbit.
Fig. 4 is a schematic diagram of a trigonometric relationship involved in constructing a virtual circular arc (linear circular arc orbit).
Fig. 5 is a schematic view of a constructed virtual circular arc.
Fig. 6 is a schematic diagram of a target arc device and a temporary arc device after the end point is modified.
Detailed Description
The following describes the solution of the present invention in detail with reference to the accompanying drawings, taking the interruption of the linear circular arc track as an example.
The computer internally realizes that:
step 1: performing secondary development in a three-dimensional design platform, adding an interrupt button and a text box for inputting interrupt step length, and limiting the text box to input floating point numbers only;
step 2: in a three-dimensional scene created by a project document, acquiring an existing circular arc track in the three-dimensional scene as an interruption target (judging whether interruption is allowed or not according to parameter IFD coding);
and step 3: as shown in fig. 4, a center line segment and a radius of the circular arc track of the currently selected circular arc track are extracted, a virtual circle center is calculated through the center line segment and the radius of the circular arc track, and a virtual circular arc (minor arc) is constructed by using the virtual circle center, the radius of the circular arc track and two end points of the center line segment; in the figure:
1＝2＊θ＊R
and 4, step 4: as shown in fig. 5, the virtual arc is divided according to a specified step length, and two end points of the virtual arc are respectively set as a 1 、A 2 The division points of the virtual circular arc are sequentially P 1 、P 2 、P 3 ……、P n-1 、P n (ii) a Wherein A is 1 P 1 、P 1 P 2 、P 2 P 3 ……、P n-1 P n Has an arc length equal to the step length, P n A 2 Is equal to or less than the step length;
and 5: an example of copying a target circular arc track at the current position in a three-dimensional scene is recorded as a temporary circular arc track, and two end points of a temporary circular arc device are respectively set as
And
modifying one side end point A of target circular arc equipment 2 A 1 is to P 1 To A is given by the coordinate value of 2 Namely, the first arc breaking device A after the division is obtained 1 A 2 (ii) a Modifying the corresponding other side end point of the temporary arc device to P 1 To coordinate values of
Step 6: recording the temporary arc orbit obtained in the step 5 as a new target arc orbit, wherein two end points of the corresponding virtual arc are respectively
The division points of the virtual circular arc are sequentially
Repeating the step 5 for iteration, wherein one division point of the virtual arc is reduced when each iteration is performed; as shown in fig. 6, the next process and results are: the target circular arc track at the moment is copied to generate a new temporary circular arc device, and the two end points of the new temporary circular arc device are respectively
And
modifying one-side end point of target arc device
Will be provided with
To give the coordinate value of
Namely, the arc equipment after the first breaking and segmentation is obtained
Modifying the corresponding other side end point of the temporary arc device
Will be provided with
To coordinate values of
(thus again, the new target circular arc orbit, the two end points will be respectively
The division points are sequentially
) (ii) a Thus, the two end points of the new target linear device are the last two points in turn (and only the two points are also used)
And
wherein
By
Assignment) ends the iteration;
and 7: acquiring all the segmented arc tracks, wherein n +1 arc tracks are obtained in total; renaming the name of each arc track in turn according to the following naming rules: [ name of first circular arc orbit ] - [ breaking times-1 ]; suppose the name of the first circular arc orbit is: NAME, named as NAME-0, NAME-1, NAME-2 \8230;, NAME- (n-1), NAME- (n);
UI operation steps:
step 1: selecting an interrupt function in a UI of a three-dimensional design platform, prompting the input of an interrupt step length by a system, and inputting a corresponding interrupt step length;
step 2: in the three-dimensional scene created by the project document, a circular arc track needing to be interrupted is selected by a mouse pick-up, namely, automatic interruption.
and (3) api operation steps:
step 1: acquiring an arc track example to be interrupted and an interruption step length;
step 2: and calling the interruption api, and transmitting the circular arc track instance and the interruption step length, namely, automatically interrupting.
The breaking method of the linear track and the circular curve circular arc track is the same as the breaking method of the linear circular arc track in basic principle, and mainly the calculation mode (step 3) for constructing the virtual line/circular arc has corresponding differences, so the description is omitted.
Claims (10)
1. The three-dimensional design platform arc equipment interruption method is characterized by comprising the following steps: the method comprises the following steps:
1) Selecting existing arc equipment to be interrupted in the three-dimensional scene, namely target arc equipment, from the three-dimensional scene created by the project document;
2) Extracting a center line segment and a radius of the arc equipment of the target arc equipment, calculating the center of a virtual circle through the center line segment and the radius of the arc equipment, and constructing a virtual arc by using the center of the virtual circle, the radius of the arc equipment and two end points of the center line segment;
3) Dividing the virtual arc according to a specified step length, and setting two end points of the virtual arc as A 1 、A 2 The division points of the virtual circular arc are sequentially P 1 、P 2 、P 3 ……、P n-1 、P n Let A be 1 P 1 、P 1 P 2 、P 2 P 3 ……、P n-1 P n Arc length of (2) is equal to step length, P n A 2 Arc length of (d) is equal to or less than the step length;
4) An example of copying a target arc device at the current position in a three-dimensional scene is recorded as a temporary arc device, and two end points of the temporary arc device are respectively set as
And
modifying one side end point A of target circular arc equipment 2 A 1 is to P 1 To A is given by the coordinate value of 2 Obtaining the arc equipment A after the first breaking and cutting 1 A 2 (ii) a Modifying the corresponding other side end point of the temporary arc device to obtain P 1 To give the coordinate value of
5) Recording the temporary arc device obtained in the step 4) as a new target arc device, wherein two end points of the corresponding virtual arc are respectively
The division points of the virtual arc are sequentially
Repeating the step 4) to carry out iteration until the two end points of the new target arc equipment are the last two points in sequence, and ending the iteration;
6) Finally, n +1 segments of segmented arc equipment are obtained, and the name of each segment of arc equipment is renamed.
2. The three-dimensional design platform arc device interruption method according to claim 1, characterized in that: the three-dimensional design platform is developed for the second time, and is added with an 'interrupt' button and a text box for inputting interrupt step length, so that the text box is limited to input floating point numbers only.
3. The three-dimensional design platform arc device interruption method according to claim 1, characterized in that: step 6) naming rules of each section of arc equipment are as follows: [ name of first segment arc device ] - [ number of interruptions-1 ], that is, assuming that the name of the first segment arc device is: NAME is named as NAME-0, NAME-1, NAME-2 \8230;, NAME- (n-1), NAME- (n) in sequence.
4. The method for interrupting the three-dimensional design platform linear equipment is characterized by comprising the following steps of: the method comprises the following steps:
1) Selecting existing linear equipment to be interrupted in the three-dimensional scene, namely target linear equipment, from the three-dimensional scene created by the project document;
2) Extracting starting point A of target straight line device 1 Endpoint A 2 And a length L, constructing a virtual straight line segment;
3) Dividing the virtual straight-line segment according to the specified step length, and setting two end points of the virtual straight-line segment as A 1 、A 2 The division points of the virtual straight line segment are sequentially P 1 、P 2 、P 3 ……、P n-1 、P n Let A be 1 P 1 、P 1 P 2 、P 2 P 3 ……、P n-1 P n Is equal to the step length, P n A 2 Is equal to or less than the step length;
4) An example of copying a target linear device at the current position in a three-dimensional scene is marked as a temporary linear device, and two end points of the temporary linear device are respectively set as
And
modifying one side end point A of target linear device 2 A 1 is to P 1 To A is given by the coordinate value of 2 Namely, the first breaking of the divided straight line equipment A is obtained 1 A 2 (ii) a Modifying a temporary line device correspondinglyOne end point of P 1 To coordinate values of
5) Recording the temporary linear device obtained in the step 4) as a new target linear device, wherein two end points of the corresponding virtual linear segment are respectively
The division points of the virtual straight line segment are sequentially
Repeating the step 4) to carry out iteration until the two end points of the new target linear device are the last two points in sequence, and ending the iteration;
6) Finally, n +1 segmented linear devices are obtained in total, and the name of each linear device is renamed.
5. The three-dimensional design platform line device breaking method of claim 4, characterized by: the three-dimensional design platform is developed for the second time, and is added with an 'interrupt' button and a text box for inputting interrupt step length, so that the text box is limited to input floating point numbers only.
6. The three-dimensional design platform line device interruption method of claim 4, wherein: step 6) naming rules of each section of linear equipment are as follows: [ name of first-stage straight-line device ] - [ number of interruptions-1 ], that is, it is assumed that the name of the first-stage straight-line device is: NAME is named as NAME-0, NAME-1, NAME-2 \8230;, NAME- (n-1), NAME- (n) in sequence.
7. A memory device having a plurality of instructions stored therein, characterized in that: the instructions are suitable for being loaded by a processor and sequentially executing the steps 2) to 6) of the three-dimensional design platform arc device breaking method in the claim 1.
8. A terminal comprising a processor and a storage device, the storage device storing a plurality of instructions, wherein: the instructions are suitable for being loaded by a processor and sequentially executing the steps 2) to 6) in the three-dimensional design platform arc device interruption method in the claim 1.
9. A storage device having a plurality of instructions stored therein, characterized in that: the instructions are adapted to be loaded by a processor and to sequentially perform steps 2) to 6) of the three-dimensional design platform line device breaking method of claim 4.
10. A terminal comprising a processor and a storage device, the storage device storing a plurality of instructions, wherein: the instructions are adapted to be loaded by a processor and to sequentially perform steps 2) to 6) of the three-dimensional design platform line device breaking method of claim 4.
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| CN110580379A (en) * | 2019-08-08 | 2019-12-17 | 陕西心像信息科技有限公司 | cable creation method and system based on three-dimensional design platform |
| CN111833438B (en) * | 2020-07-10 | 2024-06-25 | 阳光电源股份有限公司 | Method and device for interrupting reference by three-dimensional model |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2086294A (en) * | 1980-10-30 | 1982-05-12 | Thermit Welding Gb Ltd | Improved Rail Cutting Guide |
| JPH08297747A (en) * | 1995-04-25 | 1996-11-12 | Canon Inc | Method and device for plotting |
| JP2006227701A (en) * | 2005-02-15 | 2006-08-31 | Seiko Instruments Inc | Circular machining command creation device, method and program |
| CN107790801A (en) * | 2017-11-24 | 2018-03-13 | 海盐博友五金制造有限责任公司 | A kind of rectilinear orbit cutting machine |
-
2018
- 2018-06-29 CN CN201810699403.8A patent/CN109035424B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2086294A (en) * | 1980-10-30 | 1982-05-12 | Thermit Welding Gb Ltd | Improved Rail Cutting Guide |
| JPH08297747A (en) * | 1995-04-25 | 1996-11-12 | Canon Inc | Method and device for plotting |
| JP2006227701A (en) * | 2005-02-15 | 2006-08-31 | Seiko Instruments Inc | Circular machining command creation device, method and program |
| CN107790801A (en) * | 2017-11-24 | 2018-03-13 | 海盐博友五金制造有限责任公司 | A kind of rectilinear orbit cutting machine |
Non-Patent Citations (4)
| Title |
|---|
| Effective multiresolution arc segmentation: algorithms and performance evaluation;Jiqiang Song et al.;《IEEE》;20041220;第1491-1506页 * |
| 一种缓曲线、大圆弧板料的简易切割方法;俞增强;《焊接技术》;19940415;第43页 * |
| 不同钢轨廓形下高速铁路轮轨型面匹配;钱瑶 等;《西南交通大学学报》;20170215;第232-238页 * |
| 基于AutoCAD的数控加工自动编程系统的研究与实现;张万里;《中国优秀硕士学位论文全文数据库信息科技辑》;20121015;第1-124页 * |
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