CN102169511A - Road horizontal alignment computer aided design method - Google Patents
Road horizontal alignment computer aided design method Download PDFInfo
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- CN102169511A CN102169511A CN2010101142622A CN201010114262A CN102169511A CN 102169511 A CN102169511 A CN 102169511A CN 2010101142622 A CN2010101142622 A CN 2010101142622A CN 201010114262 A CN201010114262 A CN 201010114262A CN 102169511 A CN102169511 A CN 102169511A
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Abstract
The invention relates to a computer aided design method in a dynamic dragging interactive mode based on a lead method. The method is characterized by comprising the following steps of: displaying two intersectional initial leads on a computer screen; changing a coordinate parameter of an intersection point of the leads through a mouse or a dialog box; and displaying the newest road center line on the computer screen in real time. By the method, the defects of the lead method of the conventional computer aided design software are overcome, namely computation and drawing are performed respectively, so that the change of the road center line caused by the change of a design parameter cannot be seen by a user in real time; and by a computer program which is compiled by the conception provided by the method, the method has the characteristics of high speed and convenience of design, consistency between visible objects and acquired objects and the like, and convenience is brought to real-time and dynamic adjustment and design of the road center line in a large range.
Description
Technical field:
The present invention relates to the technical field of road computer-aided design (CAD), the linear computer-implemented method of specifically a kind of road plane.
Background technology:
Road plane center line method for designing mainly contains two big classes: traverse method and lead angle method.
" lead angle method " also claims the curve design method, its design philosophy is: at first determine the control line that may exist set (straight line or circular curve) completely, carry out the basic design cell design of difference according to the relation of the position between two adjacent control lines then, at last the basic design cell line of difference series combination is become center line.This method has the characteristics of flexible control, be not easy to control the trend of route on a large scale, at present, existing ripe software (EICAD) has been realized " lead angle method ", the user can choose control module (comprising control line and basic design cell) and obtain controlled variable by interactive mode, designs (comprise and drag radius or the center of circle, translation or rotation straight line) alternately with the mouse drag control module then.For the linear design of the grade separation of complexity, the lead angle method can be brought into play great role really, and energy base area deformationization if the controlling Design parameter changes by dragging flexibly, is designed desirable plane centreline line position.
" traverse method " also claims the straight line design method, and its design philosophy is: at first determine road axis lead (straight line), then each intersection point is designed as basic design cell.This method has conveniently, is suitable for characteristics such as grasp, is convenient to control the trend of route on a large scale.At present, also do not have ripe software to realize the dynamic drag function of " traverse method ", can not dynamically see the situation of change of center line when the designer revises design parameter.
" traverse method " is the classic method of the linear design of road-center, and this method is just adopted in Systems of Red Line in Planning Based control, and the designer is also very familiar and like adopting this method.Software does not all dynamically drag the function of tracerse point at present, and the designer wishes to have such software to help finish fast the alignment of center line very much.
Summary of the invention:
The objective of the invention is to work out the linear computer-implemented method of a kind of road plane, this is a kind ofly dynamically to drag interactively computer-implemented method based on " traverse method ", it can overcome some shortcomings of the prior art, helps the designer to realize alignment quick and precisely.
To achieve these goals, technical scheme of the present invention is: the linear computer-implemented method of a kind of road plane, it is characterized in that: on computer screen, show two cross one another initial leads, change lead intersecting point coordinate parameter by mouse or dialog box, on computer screen, show up-to-date road axis in real time.
The present invention has overcome the shortcoming-calculating and the drawing of " traverse method " of traditional computer Autocad and has carried out respectively, and the user can not in time see the variation of the road axis that the variation of design parameter causes.This method has characteristics such as design rate is fast, convenience, What You See Is What You Get, is convenient on a large scale real-time and dynamic and carries out road axis adjustment design.
Description of drawings
Fig. 1 is the program flow diagram of this method
Fig. 2 is for dynamically dragging the use synoptic diagram of lead position of intersecting point
Fig. 3 on-the-fly modifies the use synoptic diagram of design cell parameter for the present invention
Embodiment
The computer program process flow diagram of this method as shown in Figure 1.
The linear computer-implemented method of a kind of road plane is characterized in that: this method may further comprise the steps: A, two cross one another initial leads of demonstration on computer screen; B, choose the lead intersection point with mouse; C, obtain the coordinate (X of corresponding lead intersection point
i, y
i) and A
I1, a
I2, R
iParameter (A
I1, A
I2Represent first and second parameter of circling round respectively, R
iThe expression circular curve radius), and in the ejection dialog box show; D, program are the initial setting up parameter of lead intersection point, (this algorithm can be with reference to relevant technical literature [p78-89 by specific algorithm, the design of roading Highway Survey, Heilungkiang science tech publishing house, the Pei Yulong chief editor]), be converted to corresponding center line line element parameter, draw out corresponding center line line position then; E, user's modification dialog box inside conductor intersecting point coordinate parameter, perhaps directly rolling mouse makes the lead intersecting point coordinate change; F, program are center line line element parameter according to the algorithm that step D provides with new dynamic lead intersection point Parameters Transformation, draw corresponding center line line position; G, user judge according to the line position situation of screen display whether the line position is satisfied with, and then preserve design parameter in this way, as otherwise turn back to the E step.
Implement example, Fig. 2 represents: the user dynamically drags the graphic of lead position of intersecting point, and Fig. 3 represents: the user on-the-fly modifies the graphic of design cell parameter.
As shown in Figure 2, the user chooses the lead intersection point, the designer can be as required, the coordinate position of random mobile intersection point, in the process that drags, the lead direction is constant before can controlling, and it is constant also can to control back lead direction, can also drag arbitrarily, screen meeting synchronous dynamic shows the ew line position (dotted line demonstration) of current position of intersecting point correspondence simultaneously.
As shown in Figure 3: the user chooses the lead intersection point, shows at once on the screen that dialog box shows the design parameter of intersection point, and the designer can according to circumstances revise above-mentioned design parameter, and screen can the pairing ew line of synchronous dynamic display design parameter position after the click preview.
Claims (2)
1. linear computer-implemented method of road plane, it is characterized in that: on computer screen, show two cross one another initial leads, change lead intersecting point coordinate parameter by mouse or dialog box, on computer screen, show up-to-date road axis in real time.
2. computer-implemented method as claimed in claim 1 is characterized in that: this method may further comprise the steps: A, two cross one another initial leads of demonstration on computer screen; B, choose the lead intersection point with mouse; C, obtain the coordinate (x of corresponding lead intersection point
i, y
i) and A
I1, A
I2, R
iParameter, A
I1, A
I2Represent first and second parameter of circling round respectively, R
iThe expression circular curve radius, and in ejecting dialog box, show; D, be the initial setting up Parameters Transformation of lead intersection point corresponding center line line element parameter, draw out corresponding center line line position then; E, user's modification dialog box inside conductor intersecting point coordinate parameter, perhaps directly rolling mouse makes the lead intersecting point coordinate change; F, be center line line element parameter, draw corresponding center line line position new dynamic lead intersection point Parameters Transformation; G, user judge according to the line position situation of screen display whether the line position is satisfied with, and then preserve design parameter in this way, as otherwise turn back to the E step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101142622A CN102169511A (en) | 2010-02-25 | 2010-02-25 | Road horizontal alignment computer aided design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101142622A CN102169511A (en) | 2010-02-25 | 2010-02-25 | Road horizontal alignment computer aided design method |
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| Publication Number | Publication Date |
|---|---|
| CN102169511A true CN102169511A (en) | 2011-08-31 |
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| CN2010101142622A Pending CN102169511A (en) | 2010-02-25 | 2010-02-25 | Road horizontal alignment computer aided design method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104731997A (en) * | 2013-12-21 | 2015-06-24 | 王开明 | Computer aided design method of egg-type curve in road route design |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338088A (en) * | 1999-01-25 | 2002-02-27 | 善邻股份有限公司 | Device and method for creating and using data on road map expressed by polygons |
| CN1652118A (en) * | 2004-02-05 | 2005-08-10 | 株式会社三安建设技术公社 | System and method for implementing underway and railway linear design by computer |
-
2010
- 2010-02-25 CN CN2010101142622A patent/CN102169511A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338088A (en) * | 1999-01-25 | 2002-02-27 | 善邻股份有限公司 | Device and method for creating and using data on road map expressed by polygons |
| CN1652118A (en) * | 2004-02-05 | 2005-08-10 | 株式会社三安建设技术公社 | System and method for implementing underway and railway linear design by computer |
Non-Patent Citations (2)
| Title |
|---|
| 丁建明，等。: "动态、交互道路CAD平面设计系统研究", 《东南大学学报》, vol. 28, no. 3, 31 May 1998 (1998-05-31), pages 117 - 121 * |
| 袁胜强，等。: "道路立交线形动态拖动设计关键技术", 《同济大学学报(自然科学版)》, vol. 35, no. 12, 31 December 2007 (2007-12-31), pages 1637 - 1641 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104731997A (en) * | 2013-12-21 | 2015-06-24 | 王开明 | Computer aided design method of egg-type curve in road route design |
| CN104731997B (en) * | 2013-12-21 | 2018-01-09 | 王开明 | The computer-implemented method of egg curve in a kind of road route design |
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Application publication date: 20110831 |