CN115391888B - Quick planning method for ramp route based on web end - Google Patents
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Abstract
According to the quick planning method for the ramp route based on the web end, disclosed by the invention, an original ramp planning method is directly visualized in a mode of constructing a three-dimensional space geometric model, design elements in the ramp planning are converted into input variables of a program, the design process of combining a plurality of two-dimensional design diagrams for comparison in the original ramp planning design process is eliminated under a preset algorithm conforming to the ramp planning design, the design planning result is accurate and efficient compared with the original mode, and the purpose of efficiently and intuitively carrying out the ramp planning scheme design is achieved.
Description
Technical Field
The invention belongs to the technical field of three-dimensional model construction, and particularly relates to a quick planning method for a ramp route based on a web end.
Background
In the filling construction process of the dam, the planning of the 'I' -shaped ramp is an important preparation work before construction, and whether the planning is reasonable or not directly relates to the safety and convenience of material transportation in the construction process of the dam and the construction engineering quantity of the ramp. Therefore, how to scientifically and reasonably and rapidly plan the route, so that the longitudinal gradient of the ramp is particularly important on the premise of meeting the requirements of safety on the dam of the transport vehicle, the length of the ramp is reduced to the greatest extent, and the planned route and the construction scheme can be intuitively and vividly displayed.
The planning of the dam-up ramp in the prior art mainly depends on CAD and other two-dimensional drawing tools, wherein the plane design of the dam-up ramp is carried out by drawing a plane layout diagram, the longitudinal slope design of the dam-up ramp is carried out by drawing a ramp section diagram, then the comparison and trial calculation are carried out by combining the results, the final ramp planning design scheme can be determined after a plurality of times of adjustment, the operation flow is complex, the design process is easy to make mistakes, and the capability quality requirements on designers are higher.
Disclosure of Invention
The invention aims to provide a quick planning method for a ramp route based on a web end, which adopts a semi-automatic geometric modeling mode compared with the existing two-dimensional ramp route planning method, improves the planning efficiency of a ramp, and has visual and vivid ramp planning results.
The technical scheme adopted by the invention is as follows: the quick planning method of the ramp route based on the web end comprises the following steps:
step 1, importing a planning basic model gamma and a three-dimensional reference coordinate system at a web end, and inputting a boundary range pi of a slope planning ramp;
step 2, extracting the boundary range of step 1Pi-enclosed slope top elevation H 1 And bottom elevation H 2 Obtaining the slope upper and lower boundary height difference delta H=H 1 -H 2 ；
Step 3, performing horizontal projection pi of boundary range pi of step 1 1 Extracting the horizontal projection pi 1 The horizontal distance L between the upper boundary and the lower boundary is calculated to obtain the slope gradient of the planning range according to the horizontal distance L and the height difference delta H in the step 2
Step 4, respectively designating a ramp planning starting point A and a ramp planning ending point B on the boundary range pi of the step 1, and extracting a plane beta where the boundary range pi is positioned in the step 1;
step 5, inputting the longitudinal slope angle of the planning rampMake it meet->
Step 6, connecting the ramp planning starting point A and the ramp planning ending point B, and obtaining the included angle between the connecting line AB and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Is as follows> Step 8 is entered when it is time; when->When the slope planning starting point A is used for modeling and the plane beta is used for solving an intersection line, and the turning point A is selected from the intersection line n Let rotation base point A n =turning point a n Step 7', entering a step;
step 7, connecting the rotation base point A n And a ramp planning end point B, obtaining a connecting line A n B and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Is as follows>Step 8 is entered when it is time; when->At the moment, by the rotation base point A n Modeling and calculating intersection line of plane beta, and obtaining turning point A on the intersection line n Let rotation base point A n =turning point a n Repeating the step 7;
and 8, connecting the ramp planning starting point A, the turning point and the ramp planning ending point B to generate a ramp planning route.
The present invention is also characterized in that,
in step 6When (1):
when the selected position of the planning starting point A in the step 4 is on the lower boundary of the ramp planning range, the ramp planning starting point A in the step 4 is used for making a straight line Z parallel to the Z axis 1 Making a starting point A of the ramp planning to be in a shape of being identical with the horizontal plane XOYStraight line L of included angle 1 Let straight line L 1 Around straight line z 1 Rotating to generate a conical surface body lambda 1 Conical surface lambda 1 There are two intersecting lines l with the plane β in step 4 1 And l 2 Intersecting line l 1 And l 2 At least one intersection line and the boundary range pi have an intersection point, namely: when the selected position of the ramp planning starting point A is on the corner points on two sides of the lower boundary of the ramp planning range, the intersecting line l 1 The intersection boundary range pi is at the turning point A 1 Line segment AA 1 Planning a starting section of the route for the ramp; when the selected position of the ramp planning starting point A is at the middle position except the corner position at the lower boundary of the ramp planning range, two intersecting lines l 1 And l 2 Presence intersection point a with boundary range pi, respectively 1 、B 1 Line segment AA 1 、AB 1 AA is selected for the initial sections of the planning routes of the two slopes respectively 1 Or AB 1 And carrying out subsequent planning of the ramp route.
Line segment A A in step 6 1 、A B 1 The position calculation method of (a) specifically comprises:
in straight line L 1 Taking an arbitrary point D, which is a projection point C on a horizontal plane XOY, and making a perpendicular line z to the point D 1 At point E; setting a ramp planning start point A coordinate (x 0 ，y 0 ，z 0 ) AC length is m; let the normal vector of the plane beta be (a, b, c), and the plane beta pass through the starting point A (x 0 ，y 0 ，z 0 ) Then the point normal plane equation for β is:
a(x-x 0 )+b(y-y 0 )+c(z-z 0 )＝0
straight line L 1 Around straight line z 1 Rotation is generated in a straight line L 1 A conical surface with the datum line of +.E is used as a bus, wherein the curve equation with the datum line of +.E is:
(x 1 -x 0 ) 2 +(y 1 -y 0 ) 2 ＝m 2 ；
then pass through the vertex point a (x 0 ，y 0 ，z 0 ) And a point (x) on the directrix ≡E 1 ，y 1 ，z 1 ) The bus equation of (2) is:
let the above ratio equal to 1/t, t not equal to 0, obtain:
x 1 ＝x 0 +(x-x 0 )t
y 1 ＝y 0 +(y-y 0 )t
z 1 ＝z 0 +(z-z 0 )t
and (3) carrying out an +.E standard line equation, and eliminating t to obtain a common equation of the conical surface:
in combination with the plane equation a (x-x 0) +b (y-y 0) +c (z-z 0) =0 for β, an equation representing two straight lines is obtained:
the intersection point is calculated by utilizing the linear equation and the boundary range pi in the step 1, namely the turning point A is obtained 1 、B 1 Respectively connected with AA 1 、AB 1 The line segment is obtained.
In step 7 whenAt this time, let the rotation base point A in step 6 n =turning point a n Over rotation base point A n Making a straight line Z parallel to the Z axis n Over rotation base point A n Making a strip with +.about.horizontal plane XOY>Straight line L of included angle n Let straight line L n Around straight line Z n Rotating to generate a conical surface body lambda n Conical surface lambda n There is an intersection line l with the plane beta in step 4 n Intersecting line l n Cross boundary range pi at turning point A n ``。
The step 8 is specifically as follows:
when in step 6When the slope planning starting point A and the slope planning ending point B are connected, a slope planning route AB is generated;
when in step 7When the connection ramp is connected with the planning starting point A and the turning point A n Generating a ramp planning route AA by the ramp planning terminal point B n `B；
When in step 7When the connection ramp is connected with the planning starting point A and the turning point A n Turning point A n Generating a ramp planning route AA by using the' and the ramp planning terminal B n `A n ``B。
The beneficial effects of the invention are as follows: according to the quick planning method for the ramp route based on the web end, an original ramp planning method is directly visualized in a mode of constructing a three-dimensional space geometric model, design elements in the ramp planning are converted into input variables of programs, the design process that comparison is needed by combining a plurality of two-dimensional design diagrams in the original ramp planning design process is eliminated under a preset algorithm conforming to the ramp planning design, the design planning result is accurate and efficient compared with the original mode, and the purpose of efficiently and intuitively carrying out the ramp planning scheme design is achieved.
Drawings
FIG. 1 is a flow chart of a method of rapid planning of web-based ramp routes of the present invention;
FIG. 2 is a schematic diagram of the boundary range pi of the fast planning method of the web-based ramp route according to the present invention;
FIG. 3 is a schematic illustration of a ramp route planning in the web-based rapid ramp route planning method of the present invention;
FIG. 4 is a schematic plan view of boundary range pi in the method for rapidly planning a web-based ramp route according to the present invention;
FIG. 5 is a schematic diagram of step 6 in the method for rapidly planning a web-based ramp route of the present invention;
fig. 6 is a schematic diagram of step 7 in the method for quickly planning a web-based ramp route according to the present invention.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings and detailed description.
The invention provides a quick planning method of a ramp route based on a web end, which is implemented according to the following steps as shown in fig. 1:
and step 1, importing a planning basic model gamma and a three-dimensional reference coordinate system at a web end. The boundary range pi of the slope surface planning ramp is input, as shown in fig. 2, and the boundary range pi can be an irregular plane graph, and meanwhile, the purpose of inputting the boundary range pi is to perform route planning of a local or whole slope surface range on the variable slope surface.
Step 2, as shown in FIG. 3, extracting the slope top elevation H of the boundary range of step 1 1 And the bottom elevation H of the boundary range 2 As the input condition, the slope upper and lower boundary height difference δh=h can be obtained 1 -H 2 . And (3) taking the three-dimensional reference coordinate system imported in the step (1) as a reference at the web end, automatically extracting the top elevation H1 and the bottom elevation H2 of the slope surface in the boundary range pi, and calculating the height difference delta H.
Step 3, as shown in FIG. 4, making a horizontal projection pi of the boundary range pi of step 1 1 Extracting the horizontal projection pi 1 The upper and lower boundaries are horizontally spaced apart by a distance L. According to the horizontal distance L and the height difference delta H in the step 2, the slope gradient of the planning range can be calculated
And 4, respectively designating a ramp planning starting point A and a ramp planning ending point B on the boundary range pi of the step 1. And (3) extracting a plane beta where the boundary range pi in the step (1) is located. The ramp planning starting point A and the ramp planning ending point B can be directly at three-dimensional appointed points or can be obtained by firstly horizontally projecting pi in the boundary range pi in the step 3 1 The projection points of the ramp planning starting point A and the ramp planning ending point B are designated on the two-dimensional drawing to obtain the projection points, and the projection points are convenient for designers to plan in the early stage on the two-dimensional drawing. In addition, the plane beta where the boundary range pi is located in the step 1 is extracted and is the basis for searching a planned route in a subsequent geometric modeling mode.
Step 5, inputting the longitudinal slope angle of the planning ramp according to the construction road standard requirements, the running conditions under the load of the transport vehicle and the likeWhen meeting->That is, the zigzag ramp planning is needed. (when meeting->I.e. it represents that the vehicle can go straight up the slope along the AB route, and the ramp route can be obtained by connecting the AB point).
Step 6, connecting the ramp planning starting point A and the ramp planning ending point B, and obtaining the included angle between the connecting line AB and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Is as follows> Step 8 is entered when the method is used, namely, a ramp planning starting point A and a ramp planning ending point B are directly connected to generate a ramp planning route AB; when->In step 4, the slope planning starting point A is used for making a straight line Z parallel to the Z axis 1 Making a point A of the starting point of the ramp planning to be +.>Straight line L of included angle 1 (i.e., to ensure that the longitudinal slope angle of the planning ramp always meets the planning requirements), as shown in fig. 5. Let straight line L 1 Around straight line z 1 Rotating to generate a conical surface body lambda 1 Conical surface lambda 1 There will be two intersecting lines l with the plane beta in step 4 1 And l 2 . Intersecting line l 1 And l 2 Respectively cross the boundary range pi at the turning point A 1 、B 1 . Line segment AA 1 ，AB 1 I.e. the initial sections of the routes for the two ramps are planned respectively, wherein intersecting line sections AA are calculated 1 ，AB 1 The following are examples:
in straight line L 1 Taking an arbitrary point D, which is a projection point C on a horizontal plane XOY, and making a perpendicular line z to the point D 1 At point E.
Setting a ramp planning start point A coordinate (x 0 ，y 0 ，z 0 ) AC length of m
Let the normal vector of the plane beta be (a, b, c), and the plane beta pass through the starting point A (x 0 ，y 0 ，z 0 )：
Then the point normal plane equation for β is:
a(x-x 0 )+b(y-y 0 )+c(z-z 0 )＝0
straight line L 1 Around straight line z 1 Rotation is generated in a straight line L 1 A conical surface with the datum line of the bus bar and the datum line of the bus bar is the same as the datum line of the bus bar, wherein the datum line of the bus bar is the datum line of the bus barThe curve equation of the guideline is: (x) 1 -x 0 ) 2 +(y 1 -y 0 ) 2 ＝m 2 ；
Then pass through the vertex point a (x 0 ，y 0 ，z 0 ) And a point (x) on the directrix E 1 ，y 1 ，z 1 )
The bus equation of (2) is:
let the above ratio equal to 1/t (t.noteq.0),
obtain x 1 ＝x 0 +(x-x 0 )t，y 1 ＝y 0 +(y-y 0 )t，z 1 ＝z 0 +(z-z 0 )t
And (3) carrying out an +.E standard line equation, and eliminating t to obtain a common equation of the conical surface:
in parallel with the plane equation of β: a (x-x 0) +b (y-y 0) +c (z-z 0) =0: i.e. the equation representing two straight lines is obtained:
the intersection point is calculated by utilizing the linear equation and the boundary range pi in the step 1, namely the turning point A is obtained 1 ，B 1 Respectively connected with AA 1 ，AB 1 The line segment is the required line segment.
Selecting one of the two ramp planning routes for the next step to select the line segment AA 1 The initial segment of the route is planned for the ramp as an example.
Step 7, connecting turning point A 1 Ramp plan endpoint B. Acquiring connecting wireA 1 B and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Is as follows>Step 8 is entered when it is time; when->At this point A 1 I.e. the rotation base point, the passing point A 1 Make a straight line Z parallel to the Z axis 2 Over A 1 Making a strip with +.about.horizontal plane XOY>Straight line L of included angle 2 Let straight line L 2 Around straight line z 2 Rotating to generate a conical surface body lambda 2 Conical surface lambda 2 There will be at least one intersection line l with the plane beta in step 4 3 . Intersecting line l 3 Cross boundary range pi at turning point A 2 . Line segment A 1 A 2 Namely A A 1 As a second segment of the ramp plan start segment plan.
As shown in FIG. 6, wherein AA 1 Is based on the acquisition principle of (a) and the intersecting line segment AA 1 、AB 1 The acquisition mode is the same. Immediately connect turning point A 2 The ramp planning end point B obtains a connecting line A 2 B and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Repeating the judgment conditions of the steps, and so on to generate n turning points A n And (3) a step of performing the following steps. Taking the generation of three turning points as an example, the basic point A of over-rotation 2 Making a straight line Z parallel to the Z axis 3 Over rotation base point A 2 Making a strip with +.about.horizontal plane XOY>Straight line L of included angle 3 Let straight line L 3 Around straight line Z 3 Rotating to generate a conical surface body lambda 3 Conical surface lambda 3 There is an intersection line l with the plane beta in step 4 4 Intersecting line l 4 Cross boundary range pi at turning point A 3 . Connection turning point A 3 Ramp plan endpoint B. Acquisition of connecting wire A 3 B and the horizontal plane XOY>Judging to obtain an included angle->Less than the longitudinal slope angle in step 5 +.>Step 8 is entered at this point;
step 8, connecting the ramp planning starting point A and turning point A 1 、A 2 、A 3 And a ramp planning terminal B generates a ramp planning route AA 1 A 2 A 3 B, a step of preparing a composite material; the same thing obtains AB 1 Ramp planning route scheme as a ramp planning initiation section. And the ramp planning route scheme can be selected by combining with the site construction requirement.
By means of the method, the original ramp planning method is directly visualized in a three-dimensional space geometric model construction mode, design elements in ramp planning are converted into input variables of programs, the design process that comparison is needed by combining a plurality of two-dimensional design diagrams in the original ramp planning design process is eliminated under the preset algorithm conforming to the ramp planning design, the design planning achievement is accurate and efficient compared with the original mode, and the purpose of efficiently and intuitively carrying out ramp planning scheme design is achieved.
Claims (5)
1. The quick planning method of the ramp route based on the web end is characterized by comprising the following steps of:
step 1, importing a planning basic model gamma and a three-dimensional reference coordinate system at a web end, and inputting a boundary range pi of a slope planning ramp;
step 2, extracting slope top elevation H of boundary range pi of step 1 1 And bottom elevation H 2 Obtaining the slope upper and lower boundary height difference delta H=H 1 -H 2 ；
Step 3, performing horizontal projection pi of boundary range pi of step 1 1 Extracting the horizontal projection pi 1 The horizontal distance L between the upper boundary and the lower boundary is calculated to obtain the slope gradient of the planning range according to the horizontal distance L and the height difference delta H in the step 2(δH/L)；
Step 4, respectively designating a ramp planning starting point A and a ramp planning ending point B on the boundary range pi of the step 1, and extracting a plane beta where the boundary range pi is positioned in the step 1;
step 5, inputting the longitudinal slope angle of the planning rampMake it meet->
Step 6, connecting the ramp planning starting point A and the ramp planning ending point B, and obtaining the included angle between the connecting line AB and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Is as follows> Step 8 is entered when it is time; when->When the slope planning starting point A is used for modeling and the plane beta is used for solving an intersection line, and the turning point A is selected from the intersection line n Let rotation base point A n =turning point a n Step 7', entering a step;
step 7, connecting the rotation base point A n And a ramp planning end point B, obtaining a connecting line A n B and the horizontal plane XOYJudging the included angle->And the longitudinal slope angle in the step 5>Is as follows>Step 8 is entered when it is time; when->At the moment, by the rotation base point A n Modeling and calculating intersection line of plane beta, and obtaining turning point A on the intersection line n Order ofRotation base point A n =turning point a n Repeating the step 7;
and 8, connecting the ramp planning starting point A, the turning point and the ramp planning ending point B to generate a ramp planning route.
2. The method for quickly planning a web-based ramp route according to claim 1, wherein in the step 6, whenWhen (1):
when the selected position of the planning starting point A in the step 4 is on the lower boundary of the ramp planning range, the ramp planning starting point A in the step 4 is used for making a straight line Z parallel to the Z axis 1 Making a starting point A of the ramp planning to be in a shape of being identical with the horizontal plane XOYStraight line L of included angle 1 Let straight line L 1 Around straight line z 1 Rotating to generate a conical surface body lambda 1 Conical surface lambda 1 There are two intersecting lines l with the plane β in step 4 1 And l 2 Intersecting line l 1 And l 2 At least one intersection line and the boundary range pi have an intersection point, namely: when the selected position of the ramp planning starting point A is on the corner points on two sides of the lower boundary of the ramp planning range, the intersecting line l 1 The intersection boundary range pi is at the turning point A 1 Line segment AA 1 Planning a starting section of the route for the ramp; when the selected position of the ramp planning starting point A is at the middle position except the corner position at the lower boundary of the ramp planning range, two intersecting lines l 1 And l 2 Presence intersection point a with boundary range pi, respectively 1 、B 1 Line segment AA 1 、AB 1 AA is selected for the initial sections of the planning routes of the two slopes respectively 1 Or AB 1 And carrying out subsequent planning of the ramp route.
3. A method for rapid planning of web-based ramp route according to claim 2, characterized in that theLine segment AA in step 6 1 、A B 1 The position calculation method of (a) specifically comprises:
in straight line L 1 Taking an arbitrary point D, which is a projection point C on a horizontal plane XOY, and making a perpendicular line z to the point D 1 At point E; setting a ramp planning start point A coordinate (x 0 ，y 0 ，z 0 ) AC length is m; let the normal vector of the plane beta be (a, b, c), and the plane beta pass through the starting point A (x 0 ，y 0 ，z 0 ) Then the point normal plane equation for β is:
a(x-x 0 )+b(y-y 0 )+c(z-z 0 )＝0
straight line L 1 Around straight line z 1 Rotation is generated in a straight line L 1 A conical surface with the datum line of +.E is used as a bus, wherein the curve equation with the datum line of +.E is:
(x 1 -x 0 ) 2 +(y 1 -y 0 ) 2 ＝m 2 ；
then pass through the vertex point a (x 0 ，y 0 ，z 0 ) And a point (x) on the directrix ≡E 1 ，y 1 ，z 1 ) The bus equation of (2) is:
let the above ratio equal to 1/t, t not equal to 0, obtain:
x 1 ＝x 0 +(x-x 0 )t
y 1 ＝y 0 +(y-y 0 )t
z 1 ＝z 0 +(z-z 0 )t
and (3) carrying out an +.E standard line equation, and eliminating t to obtain a common equation of the conical surface:
in combination with the plane equation a (x-x 0) +b (y-y 0) +c (z-z 0) =0 for β, an equation representing two straight lines is obtained:
the intersection point is calculated by utilizing the linear equation and the boundary range pi in the step 1, namely the turning point A is obtained 1 、B 1 Respectively connected with AA 1 、AB 1 The line segment is obtained.
4. The method for quickly planning a web-based ramp route according to claim 1, wherein in the step 7, whenAt this time, let the rotation base point A in step 6 n =turning point a n Over rotation base point A n Making a straight line Z parallel to the Z axis n Over rotation base point A n Making a strip with +.about.horizontal plane XOY>Straight line L of included angle n Let straight line L n Around straight line Z n Rotating to generate a conical surface body lambda n Conical surface lambda n There is an intersection line l with the plane beta in step 4 n Intersecting line l n Cross boundary range pi at turning point A n ``。
5. The method for quickly planning a ramp route based on a web terminal according to claim 1, wherein the step 8 specifically comprises:
when in step 6When the ramp planning starting point A and the ramp gauge are connectedThe dividing end point B generates a ramp planning route AB;
when in step 7When the connection ramp is connected with the planning starting point A and the turning point A n Generating a ramp planning route AA by the ramp planning terminal point B n `B；
When in step 7When the connection ramp is connected with the planning starting point A and the turning point A n Turning point A n Generating a ramp planning route AA by using the' and the ramp planning terminal B n `A n ``B。
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