CN110472267A - A kind of method and device of intersection channelization emulation - Google Patents
A kind of method and device of intersection channelization emulation Download PDFInfo
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Abstract
The invention discloses a kind of method and devices of intersection channelization emulation, this method includes the characteristic information for obtaining the crossing road that client is sent, according to the center point coordinate of the characteristic information of road and crossing, determine the value of the characteristic point of road canalization, traverse the value of the characteristic point of each road, using the right remote point of present road as starting point, the characteristic point of each road is connected with straight line by curve, draw the profile of outlet, lane, lane markings, the pavement for drawing each road of outlet, are sent to client for the canalization information at the crossing of drafting.By after receiving the characteristic information that client is sent, determine the value of the characteristic point of each road, then according to the value of this feature point, draw the profile of each road, to realize the canalization information at drawing modification crossing, pass through the displaying of client, then so as to improve the precision of intersection channelization, it provides and visualizes mechanism associated with data, the editor to canalization information can be completed by visualized operation.
Description
Technical field
The present embodiments relate to the method and devices that technical field of transportation more particularly to a kind of intersection channelization emulate.
Background technique
The channelized picture at traffic route crossing is road construction construction, and later maintenance, adjustment wait the indispensable number of every engineering
According to.And road status is researched and analysed, carry out traffic control, the basic material of the work such as traffic signals tuning.But due to
Various limitations or technological means is immature or departmental cooperation there is no prestige and other reasons, domestic public safety traffic management portions at different levels
Company rests on the AutoCAD figure stage to the drafting of crossing channelized picture in door and field of traffic, draws by professional drawing personnel merely
The drawing of system, on the one hand, at high cost, low efficiency, modification are complicated；It on the other hand, can not be automatic by the data in crossing channelized picture
Information system is extracted, the data of information system can not also carry out analysis displaying in channelized picture.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of intersection channelization emulation, to improve the precision of intersection channelization,
And intersection channelization information is shown.
A kind of method of intersection channelization emulation provided in an embodiment of the present invention, comprising:
Obtain the characteristic information for the crossing road that client is sent；
According to the center point coordinate of the characteristic information of the road and the crossing, the characteristic point of the road canalization is determined
Value；
The value for traversing the characteristic point of each road is connected using the right remote point of present road as starting point by curve and straight line
The characteristic point for connecing each road draws out the profile at the crossing；On the basis of the profile at the crossing, the crossing is drawn out
Each road lane, lane markings, pavement；
The canalization information at the crossing of drafting is sent to the client, so that client is by the canalization at the crossing
Information is shown.
In above-mentioned technical proposal, by determining the feature of each road after receiving the characteristic information that client is sent
The value of point draws the profile of each road then according to the value of this feature point, thus realize the canalization information at drawing modification crossing,
Then pass through the displaying of client, so as to improve the precision of intersection channelization, provide and visualize mechanism associated with data,
The editor to canalization information can be completed by visualized operation.
Optionally, the characteristic information of the road include the width of road, the angle of road, road right-hand bend radius,
The offset of road, the broadening of road, road gradual change are long；The characteristic point of the road canalization includes right remote point, the road of road
Right proximal points, the left remote point of adjacent road, road import broadening on the right side of the endpoint in the vicinity, road of adjacent road on the right side of road
Proximal points, road import broadening remote point, outlet broadening proximal points of adjacent road on the right side of road, adjacent road on the right side of road
Outlet broadening remote point；
It is described according to the characteristic information of the road and the center point coordinate at the crossing, determine the spy of the road canalization
Levy the value of point, comprising:
According to the width of the road, the offset of the road, the right-hand bend half of the angle of the road, the road
The offset of adjacent road and road right side are adjacent on the right side of the width, the road of adjacent road on the right side of diameter, the road
The angle of road determines the value of the endpoint in the vicinity of adjacent road on the right side of the value and the road of the right proximal points of the road；
According to the value of the broadening of the road and the right proximal points of the road, the road import broadening proximal points are determined
Value；
According to the long value with road import broadening proximal points of the gradual change of the road, the road import broadening is determined
The value of remote point；
The value and first threshold that remote point is broadened according to the road import, determine the value of the right remote point of the road；
According to the value of the endpoint in the vicinity of adjacent road on the right side of the broadening of adjacent road on the right side of the road and the road, really
The value of the outlet broadening proximal points of adjacent road on the right side of the fixed road；
According to adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of the road and the road
Gradual change is long, determines the value of the outlet broadening remote point of adjacent road on the right side of the road；
According to the value and second threshold of the outlet broadening remote point of adjacent road on the right side of the road, determine that the road is right
The value of the left remote point of side adjacent road.
Optionally, on the right side of the value for the right proximal points for determining the road and the road adjacent road endpoint in the vicinity
Value after, further includes:
According to the value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the road and the road, determine
Draw the value at the first control point of right-hand rotation curve and the value at the second control point.
Optionally, according to the long value with road import broadening proximal points of the gradual change of the road, the road is determined
Road import broadens after the value of remote point, further includes:
The value of proximal points and the value of road import broadening remote point are broadened according to the road import, are determined and are drawn institute
State the value at the first control point of the broadening curve of road and the value at the second control point；
The outlet of adjacent road broadens adjacent road on the right side of the value and the road of proximal points on the right side of according to the road
Gradual change it is long, after the value of outlet broadening remote point for determining adjacent road on the right side of the road, further includes:
According to adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of the road and the road
The value of outlet broadening remote point determines the value at the first control point of the broadening curve for drawing adjacent road on the right side of the road
With the value at the second control point.
Optionally, after the canalization information at the crossing by drafting is sent to the client, further includes:
Obtain the first modification information that client is sent；
According to first modification information, the characteristic point of the corresponding road canalization of first modification information is redefined
Value, and the value of the characteristic point according to the corresponding road canalization of first modification information, repaint the canalization letter at the crossing
Breath；
The canalization information at the crossing repainted is sent to the client.
Optionally, first modification information deviates for broadening and/or the gradual change length of the road and/or apart from crossing；
It is described according to first modification information, redefine the feature of the corresponding road canalization of first modification information
The value of point, comprising:
It is deviated according to the broadening of the road and/or gradual change length and/or apart from crossing, redefines the road imports exposition
The value of the value of wide proximal points and road import broadening remote point.
Optionally, first modification information be the road right-hand bend radius and/or the road angle and/or
The offset of the road；
According to first modification information, the characteristic point of the corresponding road canalization of first modification information is redefined
Value, comprising:
The offset according to the right-hand bend radius of the road and/or the angle of the road and/or the road, weight
Newly determine the value of the endpoint in the vicinity of adjacent road on the right side of the value and the road of the right proximal points of the road；And successively again
Determine that the value of the road import broadening proximal points, the road import broaden the right remote point of the value of remote point, the road
Value, the value of the outlet broadening proximal points of adjacent road on the right side of the road, on the right side of the road adjacent road outlet broadening
The value of the left remote point of adjacent road on the right side of the value of remote point, the road.
Optionally, after the canalization information at the crossing by drafting is sent to the client, further includes:
Obtain the second modification information that client is sent；
According to second modification information, lane, lane markings, the pavement of each road at the crossing are repainted；
The canalization information at the crossing repainted is sent to the client.
Optionally, second modification information is ladder stop line；
It is described according to second modification information, repaint lane, the lane markings, people's row of each road at the crossing
Road, comprising:
According to the ladder stop line, the lane of each road in the crossing is repainted.
Optionally, second modification information be non-motorized lane and/or turn around mouth width degree and/or intermediate isolating band and/
The area Huo Daihang distal excursion；
It is described according to second modification information, repaint lane, the lane markings, people's row of each road at the crossing
Road, comprising:
According to the non-motorized lane, the non-motorized lane at the crossing is drawn and/or turn around mouth width degree and/or middle interval
From band and/or to row area distal excursion, according to the non-motorized lane of drafting and/or turn around mouth width degree and/or intermediate isolating band
And/or to row area, repaint lane, lane markings, the pavement of each road in the crossing.
Second aspect, the embodiment of the present invention provide a kind of device of intersection channelization emulation, comprising:
Acquiring unit, the characteristic information of the crossing road for obtaining client transmission；
Processing unit, for determining the road according to the characteristic information of the road and the center point coordinate at the crossing
The value of the characteristic point of road canalization；The value for traversing the characteristic point of each road passes through song using the right remote point of present road as starting point
Line connects the characteristic point of each road with straight line, draws out the profile at the crossing；On the basis of the profile at the crossing, draw
Lane, lane markings, the pavement of each road at the crossing out；
Transmission unit, for the canalization information at the crossing drawn to be sent to the client, so that client will
The canalization information at the crossing is shown.
Optionally, the characteristic information of the road include the width of road, the angle of road, road right-hand bend radius,
The offset of road, the broadening of road, road gradual change are long；The characteristic point of the road canalization includes right remote point, the road of road
Right proximal points, the left remote point of adjacent road, road import broadening on the right side of the endpoint in the vicinity, road of adjacent road on the right side of road
Proximal points, road import broadening remote point, outlet broadening proximal points of adjacent road on the right side of road, adjacent road on the right side of road
Outlet broadening remote point；
The processing unit is specifically used for:
According to the width of the road, the offset of the road, the right-hand bend half of the angle of the road, the road
The offset of adjacent road and road right side are adjacent on the right side of the width, the road of adjacent road on the right side of diameter, the road
The angle of road determines the value of the endpoint in the vicinity of adjacent road on the right side of the value and the road of the right proximal points of the road；
According to the value of the broadening of the road and the right proximal points of the road, the road import broadening proximal points are determined
Value；
According to the long value with road import broadening proximal points of the gradual change of the road, the road import broadening is determined
The value of remote point；
The value and first threshold that remote point is broadened according to the road import, determine the value of the right remote point of the road；
According to the value of the endpoint in the vicinity of adjacent road on the right side of the broadening of adjacent road on the right side of the road and the road, really
The value of the outlet broadening proximal points of adjacent road on the right side of the fixed road；
According to adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of the road and the road
Gradual change is long, determines the value of the outlet broadening remote point of adjacent road on the right side of the road；
According to the value and second threshold of the outlet broadening remote point of adjacent road on the right side of the road, determine that the road is right
The value of the left remote point of side adjacent road.
Optionally, the processing unit is also used to:
On the right side of the value for the right proximal points for determining the road and the road value of the endpoint in the vicinity of adjacent road it
Afterwards, it according to the value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the road and the road, determines and draws
The value at the first control point of right-hand rotation curve and the value at the second control point.
Optionally, the processing unit is also used to:
According to the long value with road import broadening proximal points of the gradual change of the road, the road imports exposition is determined
After the value of wide remote point, the value of proximal points and the value of road import broadening remote point are broadened according to the road import,
Determine the value of the value and the second control point of drawing the first control point of broadening curve of the road；
The outlet of adjacent road broadens adjacent road on the right side of the value and the road of proximal points on the right side of according to the road
Gradual change it is long, after the value of outlet broadening remote point for determining adjacent road on the right side of the road, according to phase on the right side of the road
The value of the outlet broadening remote point of the value and adjacent road on the right side of the road of the outlet broadening proximal points on neighboring trace road, determine described in
Draw the value at the first control point of the broadening curve of adjacent road on the right side of the road and the value at the second control point.
Optionally, the processing unit is also used to:
After the canalization information at the crossing by drafting is sent to the client, obtain what client was sent
First modification information；
According to first modification information, the characteristic point of the corresponding road canalization of first modification information is redefined
Value, and the value of the characteristic point according to the corresponding road canalization of first modification information, repaint the canalization letter at the crossing
Breath；
The canalization information at the crossing repainted is sent to the client.
Optionally, first modification information deviates for broadening and/or the gradual change length of the road and/or apart from crossing；
The processing unit is specifically used for:
It is deviated according to the broadening of the road and/or gradual change length and/or apart from crossing, redefines the road imports exposition
The value of the value of wide proximal points and road import broadening remote point.
Optionally, first modification information be the road right-hand bend radius and/or the road angle and/or
The offset of the road；
The processing unit is specifically used for:
According to the offset of the angle and/or the road of the right-hand bend radius of the road and/or the road, again really
The value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the fixed road and the road；And it successively redefines
The value of road import broadening proximal points, the value of road import broadening remote point, the road right remote point value,
The outlet of the value, road right side adjacent road of the outlet broadening proximal points of adjacent road broadens remote point on the right side of the road
Value, on the right side of the road the left remote point of adjacent road value.
Optionally, the processing unit is also used to:
After the canalization information at the crossing by drafting is sent to the client, obtain what client was sent
Second modification information；
According to second modification information, lane, lane markings, the pavement of each road at the crossing are repainted；
The canalization information at the crossing repainted is sent to the client.
Optionally, second modification information is ladder stop line；
The processing unit is specifically used for:
According to the ladder stop line, the lane of each road in the crossing is repainted.
Optionally, second modification information be non-motorized lane and/or turn around mouth width degree and/or intermediate isolating band and/
The area Huo Daihang distal excursion；
The processing unit is specifically used for:
According to the non-motorized lane, the non-motorized lane at the crossing is drawn and/or turn around mouth width degree and/or middle interval
From band and/or to row area distal excursion, according to the non-motorized lane of drafting and/or turn around mouth width degree and/or intermediate isolating band
And/or to row area, repaint lane, lane markings, the pavement of each road in the crossing.
The third aspect, the embodiment of the invention also provides a kind of calculating equipment, comprising:
Memory, for storing program instruction；
Processor executes above-mentioned first according to the program of acquisition for calling the program instruction stored in the memory
The method of the emulation of intersection channelization described in aspect.
Correspondingly, the embodiment of the invention also provides a kind of computer-readable non-volatile memory medium, including computer
Readable instruction, when computer is read and executes the computer-readable instruction, so that computer executes above-mentioned first aspect institute
The method for the intersection channelization emulation stated.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of schematic diagram of system architecture provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of the method for intersection channelization emulation provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of characteristic point provided in an embodiment of the present invention；
Fig. 4 is the endpoint in the vicinity of adjacent road on the right side of the right proximal points and road of a kind of road provided in an embodiment of the present invention
Schematic diagram；
Fig. 5 is a kind of schematic diagram of right-hand rotation curve control point provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram for broadening curve control point provided in an embodiment of the present invention；
Fig. 7 a, Fig. 7 b and Fig. 7 c are a kind of schematic diagram of the long variation of broadening and gradual change provided in an embodiment of the present invention；
Fig. 8 a and Fig. 8 b are a kind of schematic diagram away from crossing offset variation provided in an embodiment of the present invention；
Fig. 9 a and Fig. 9 b are a kind of schematic diagram of right-hand bend radius change provided in an embodiment of the present invention；
Figure 10 a, Figure 10 b and Figure 10 c are a kind of schematic diagram of the angle change of road provided in an embodiment of the present invention；
Figure 11 a and Figure 11 b are a kind of schematic diagram of the offset variation at crossing provided in an embodiment of the present invention；
Figure 12 a and Figure 12 b are a kind of schematic diagram of the offset variation at crossing provided in an embodiment of the present invention；
Figure 13 is a kind of schematic diagram of ladder stop line variation provided in an embodiment of the present invention；
Figure 14 a and Figure 14 b are a kind of schematic diagram of non-motorized lane variation provided in an embodiment of the present invention；
Figure 15 is a kind of schematic diagram for mouthful change width that turns around provided in an embodiment of the present invention；
Figure 16 is a kind of schematic diagram of isolation strip variation provided in an embodiment of the present invention；
Figure 17 a and Figure 17 b are a kind of schematic diagram to the variation of row area distal excursion provided in an embodiment of the present invention；
Figure 18 is a kind of structural schematic diagram of the device of intersection channelization emulation provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Fig. 1 illustratively shows a kind of system architecture that the embodiment of the present invention is applicable in, which can be clothes
Business device 100, including processor 110, communication interface 120 and memory 130.The server 100 can be in traffic control
The server of the heart, or the server of other branch centers, the embodiment of the present invention are without limitation.
Wherein, communication interface 120 is received and dispatched the information of terminal device transmission, is realized for being communicated with terminal device
Communication.
Processor 110 is the control centre of server 100, connects entire server 100 with route using various interfaces
Various pieces by running or execute the software program/or module that are stored in memory 130, and are called and are stored in storage
Data in device 130, the various functions and processing data of execute server 100.Optionally, processor 110 may include one
Or multiple processing units.
Memory 130 can be used for storing software program and module, and processor 110 is stored in memory 130 by operation
Software program and module, thereby executing various function application and data processing.Memory 130 can mainly include storage
Program area and storage data area, wherein storing program area can application program needed for storage program area, at least one function
Deng；Storage data area can store the data etc. created according to business processing.In addition, memory 130 may include that high speed is random
Access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or other
Volatile solid-state part.
It should be noted that above-mentioned structure shown in FIG. 1 is only a kind of example, it is not limited in the embodiment of the present invention.
Based on foregoing description, Fig. 2 illustratively shows a kind of side of intersection channelization emulation provided in an embodiment of the present invention
The process of method, the device which can be emulated with intersection channelization execute, which can be located at server 100 as shown in Figure 1
It is interior, it is also possible to the server 100.
As shown in Fig. 2, the process specifically includes:
Step 201, client sends the characteristic information of crossing road.
In embodiments of the present invention, the characteristic information of the road may include the width of road, the angle of road, road
Right-hand bend radius, the offset of road, the broadening of road, road gradual change are long.It, can also be according to reality during specific implementation
Situation voluntarily adjusts the content that the characteristic information of the road specifically includes.It optionally, can also include the number of road in crossing
Amount, separation path type, street medians width, safety island turn around, ladder stop line etc. information in advance.
User inputs the characteristic information of above-mentioned road when carrying out crossing road simulation on the client, then objective
This feature information can be sent to server by family end, so that server carries out intersection channelization emulation.
Step 202, server determines the road according to the characteristic information of the road and the center point coordinate at the crossing
The value of the characteristic point of road canalization.
It should be noted that the characteristic point of above-mentioned road canalization may include the right proximal end of the right remote point of road, road
Point, the left remote point of adjacent road on the right side of the endpoint in the vicinity, road of adjacent road on the right side of road, road import broadening proximal points,
The outlet that road import broadens remote point, road right side adjacent road broadens the outlet exhibition of proximal points, road right side adjacent road
The information such as wide remote point.Features described above point can empirically be chosen, for example, as shown in figure 3, the characteristic point of road canalization
It can be with are as follows:
Y: the right remote point of road；
S: the right proximal points of road；
E: the endpoint in the vicinity of adjacent road on the right side of road；
M: the left remote point of adjacent road on the right side of road；
A: road import broadens proximal points；
L: road import broadens remote point；
G, H: the first control point of roadway widening curve and the second control point (Bezier control point)；
B, C: the first control point of road right-hand rotation curve and the second control point (Bezier control point)；
F: the outlet of adjacent road broadens proximal points on the right side of road；
Q: the outlet of adjacent road broadens remote point on the right side of road；
P, X: the first control point and the second control point of the outlet broadening curve of adjacent road on the right side of road.
When determining the value of each characteristic point, neighboring track on the right side of the value and road of the right proximal points of road can be first determined
The value of the endpoint in the vicinity on road, specifically, can be according to the offset of width, road of road, the right-hand bend of the angle of road, road
The angle of the offset of adjacent road and road right side adjacent road on the right side of the width, road of adjacent road on the right side of radius, road,
Determine the value of the endpoint in the vicinity of adjacent road on the right side of the value and road of the right proximal points of road.
As shown in figure 4, setting the width of road 1 as S1, angle is θ 1.The width of road 2 is S2, and angle is θ 2.Angle is
α。
So:
S point can be shown in formula (1) relative to the longitudinal length calculating of the central point at crossing:
E point can be shown in formula (2) relative to the longitudinal length calculating of the central point at crossing:
Wherein, R1For the right-hand bend radius of road.
On the right side of the value for the right proximal points for obtaining road and road after the value of the endpoint in the vicinity of adjacent road, so that it may
According to the value of the broadening of road and the right proximal points of road, the value of road import broadening proximal points is determined, according to the gradual change of road
The value of long and road import broadening proximal points, determines the value of road import broadening remote point, broadens remote point according to road import
Value and first threshold, determine the value of the right remote point of road.Then the broadening further according to adjacent road on the right side of road and road
The value of the endpoint in the vicinity of right side adjacent road determines the value of the outlet broadening proximal points of adjacent road on the right side of road, according to road
The gradual change of adjacent road is long on the right side of the value and road of the outlet broadening proximal points of right side adjacent road, determines neighboring track on the right side of road
The value of the outlet broadening remote point on road, according to the value and second threshold of the outlet broadening remote point of adjacent road on the right side of road, really
Determine the value of the left remote point of adjacent road on the right side of road.Thus the value of all characteristic points can all be determined.
Further, can on the right side of the value for the right proximal points for determining road and the road adjacent road end in the vicinity
After the value of point, according to the value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of road and the road, determine
Draw the value at the first control point of right-hand rotation curve and the value at the second control point.First control point of the right-hand rotation curve and the second control
Point is used to draw three rank Bezier control points.For example, as shown in figure 5, can be adopted to emulate turning radius
It is fitted with three rank Beziers round.B point and C point are two control points needed when drawing bezier curve, can basis
S point and E point calculate the coordinate of BC two o'clock.
And according to the long value with road import broadening proximal points of the gradual change of road, determine that road import broadens remote point
Value after, according to road import broaden proximal points value and road import broadening remote point value, determine draw road exhibition
The value at the first control point of wide curve and the value at the second control point.The outlet of adjacent road broadens proximal points on the right side of according to road
Value and road on the right side of adjacent road gradual change it is long, after the value of outlet broadening remote point for determining adjacent road on the right side of road,
According to the outlet broadening remote point of adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of road and road
Value determines the value of the value and the second control point of drawing the first control point of broadening curve of adjacent road on the right side of the road.Example
Such as, as shown in fig. 6, A point and L point are extended outwardly along road direction, impact factor is outlet/inlet broadening.G,H
Point use three rank Beziers, G point be extend outward along A point A and L extending direction distance 1/3, similarly, H is
L is along the 1/3 of extending direction distance AL.
Step 203, server traverses the value of the characteristic point of each road, using the right remote point of present road as starting point, leads to
The characteristic point that curve connects each road with straight line is crossed, the profile at the crossing is drawn out；On the basis of the profile at the crossing,
Draw out lane, lane markings, the pavement of each road at the crossing.
Each road characteristic point value after, so that it may the canalization information for drawing crossing is traversed according to road, lead to
Curve or all characteristic points of straight line linking-up road are crossed, closed figures are completed.
For example, the characteristic point of N road is traversed according to characteristic point as shown in Figure 3, wherein every road executes:
1, Y point and L point-rendering straight line.
2, L to A draws three rank Beziers, wherein H and G point is the first control point and second of roadway widening curve
Control point.
3, A to S draws straight line.
4, S to E point draws three rank Beziers by two control points (B and C point).
5, E point is to F point-rendering straight line.
6, F point draws three rank Beziers by two control points (P and X point) to Q point.
7, Q point is to M point-rendering straight line.
Terminate traversal, starting point and ending point can be closed at this time, and paintbrush is filled with as required color, profile is completed
It draws.
After profile is completed, so that it may on the basis of the profile of drafting, draw lane, the vehicle of each road of outlet
The information such as road mark, pavement.When drafting, lane id in setting, affiliated road id.Visual component and data portion are carried out strong
Association, reaches the interaction of visualization portion and data model.
In embodiments of the present invention, the various information at the crossing of above-mentioned drafting are the canalization information at crossing, may include
The information such as the profile at the crossing of drafting and various lanes, lane markings, pavement.
Step 204, server sends the canalization information at the crossing drawn to client.
After having drawn the canalization information at crossing in above-mentioned steps 203, so that it may send out the canalization information at the crossing
Client is given, so that client is shown.
Step 205, client shows the canalization information at the crossing drawn.
Client is after the canalization information at the crossing for receiving server maps, so that it may be shown in display equipment
On, user can intuitively see canalization information.
Optionally, when client show intersection channelization information after, can also the canalization information to the crossing modify,
Specifically, the first modification information of client transmission can first be obtained, that is, the characteristic information of user's modification.Then according to
One modification information redefines the value of the characteristic point of the corresponding road canalization of the first modification information, and according to the first modification information
The value of the characteristic point of corresponding road canalization, repaints the canalization information at crossing, by the canalization information at the crossing repainted
It is sent to client.During specific implementation, user should can directly be seen that the process of variation, such as user can use mouse
Mobile road is marked to change the angle of road, to realize the purpose for changing characteristic information.
Specifically, above-mentioned first modification information may include road broadening and/or gradual change it is long and/or inclined apart from crossing
It moves, at this point it is possible to deviate according to the broadening of road and/or gradual change length and/or apart from crossing, it is close to redefine road import broadening
The value of the value of endpoint and road import broadening remote point.For example, as shown in Fig. 7 a, Fig. 7 b, Fig. 7 c, by the exhibition for changing road
The long value of wide and gradual change, can intuitively show.It is 0 and 9 meter that Fig. 8 a and Fig. 8 b, which are respectively illustrated apart from crossing offset,
Legend.
First modification information may be the angle of right-hand bend radius and/or road and/or the offset of road.It can root
According to the offset of the right-hand bend radius of road and/or the angle of road and/or road, redefine the value of the right proximal points of road with
And on the right side of road the endpoint in the vicinity of adjacent road value, and successively redefine the road import broadening value of proximal points, road into
Value, the value of the right remote point of road, the value of the outlet broadening proximal points of road right side adjacent road, road of mouth broadening remote point
Value, the value of the left remote point of road right side adjacent road of the outlet broadening remote point of right side adjacent road.It is repaired for example, working as first
Convert to breath be right-hand bend radius when, as shown in figures 9 a and 9b, wherein Fig. 9 b be modification right-hand bend radius after schematic diagram,
The point of curve folded by two road finds out the center of circle that and radius tangent with point of curve is R, finally calculates two controls
The position of point is drawn, circular arc portion.
When the first modification information is the angle of road, as shown in Figure 10 a, 10b, 10c, wherein Figure 10 a is road
The case where unmodified situation of angle, Figure 10 b and Figure 10 c show respectively the angle modification of road.In specific implementation, by road
Road region is abstracted into a square；When doing rotation process around reference center point, mouse point and central point are obtained
Angle, the modified angle as this road.The value for recalculating each characteristic point being entirely canalized, by having repainted
At the update of canalization.The embodiment of the present invention can use throttling algorithm, guarantee the smoothness of operation, the mobile thing of relative users mouse
Part, original drawing process need 200ms, and the mobile mouse process of user can generate n drafting, alternate to be lower than 200ms, thus
It will cause some drafting not finish also, next drafting instruction is just assigned, and is caused and is computed repeatedly, client's end pressure is excessive.
The case where timely drafting is not achieved, will appear response instead not in time.
When the first modification information is the offset of road, as shown in Figure 11 a and Figure 11 b, wherein Figure 11 a is that road is unbiased
The case where the case where shifting, Figure 11 b offsets for road.Figure 12 a and Figure 12 b respectively illustrate the case where offset modification of road
Under, repaint the right-hand rotation curve of road.When road is deviated without import, according to the crossing point of curve (1. and 4.) of road and half
Diameter calculates two control points of three rank Beziers: 2. and 3., carrying out the drafting of three rank Beziers.Road have into
When mouth offset, 1. inlet point can be obtained according to offset toward increasing or reducing by central point direction.Key is control point
3. 2. determination.By control point 2. for: when the import offset of certain road, not with the outlet deviant of the road on the right side of him
When consistent, right-hand rotation curve is non-positive round.1. 2. 3. 4. it at this point, first according to the distance L1 of original path to center origin, calculates a little.
If control point 2. distance center origin along road direction distance be length1.Then after being deviated according to import, in entrance distance
The distance L2 of heart origin, the ratio with L1, calculates deviation ratio: γ=L2/L1.Finally calculate control point 2. distance center origin
Along road direction distance: length2=γ * length1.Similarly find out the position 3. control point deviates after.Again by last
Four positions calculated, make three rank Beziers.
Optionally, it can also modify to others canalization information, specifically, the second of the transmission of available client
Modification information repaints lane, lane markings, the pavement of each road at crossing, will draw again according to the second modification information
The canalization information at the crossing of system is sent to client.
Second modification information can for ladder stop line and non-motorized lane and/or turn around mouth width degree and/or in
Between isolation strip and/or to information such as row area distal excursions.When the second modification information is ladder stop line, can be stopped according to ladder
Fare repaints the lane of each road in crossing.As shown in figure 13, belong to the length of ladder stop line as the indispensability in lane
Property, it is 0 under default situations, different numerical value each lane can be arranged, is stopped with emulating the various different ladders of real road
The scene of fare.Figure 13 shows the case where ladder stop line is respectively set to 0/1/2/3/4/0.
When the second modification information be crossing non-motorized lane and/or turn around mouth width degree and/or intermediate isolating band and/or
When row area distal excursion, the non-motorized lane at the crossing can be drawn and/or the mouth width that turns around according to the non-motorized lane
Degree and/or intermediate isolating band and/or to row area distal excursion, according to the non-motorized lane of drafting and/or turn around mouth width degree and/or
Intermediate isolating band and/or to row area, repaints lane, lane markings, the pavement of each road in the crossing.
It wherein, can be as shown in Figure 14 a and Figure 14 b, wherein Figure 14 a is shown when the second modification information is non-motorized lane
The case where the case where one non-motorized lane, Figure 14 b shows two non-motorized lanes.Mainly pass through inlet and outlet direction point
From, the mode that is independently arranged, the non-motorized lane of inlet and outlet, the quantity of car lane can be individually configured.
When the second modification information is spent for the mouth width that turns around, as shown in figure 15, the left and right sides is mouth width degree setting of turning around respectively
The case where being 4 meters and 10 meters.When the second modification information is intermediate isolating band, as shown in figure 16, the right and left is respectively illustrated
When intermediate isolating band is yellow oblique line, double amber lines the case where turning around in advance.When the second modification information be when row area distal excursion,
As shown in Figure 17 a and Figure 17 b, the case where straight trip area to be transferred distal excursion is respectively set to 2 meters and 5 meters is respectively illustrated.
Above-described embodiment shows to obtain the characteristic information for the crossing road that client is sent, according to the characteristic information of road
With the center point coordinate at crossing, determines the value of the characteristic point of road canalization, the value of the characteristic point of each road is traversed, with present road
Right remote point be starting point, the characteristic point of each road is connected with straight line by curve, draws the profile of outlet, draws outlet
Lane, lane markings, the pavement of each road of mouth, are sent to client for the canalization information at the crossing of drafting.By connecing
After receiving the characteristic information that client is sent, the value of the characteristic point of each road is determined, then according to the value of this feature point, draw
Then the profile of each road passes through the displaying of client, to realize the canalization information at drawing modification crossing so as to improve road
The precision of mouth canalization, provides and visualizes mechanism associated with data, can be completed by visualized operation to canalization information
Editor.
The method of intersection channelization emulation provided in an embodiment of the present invention, compared with previous scheme, on the one hand providing can
Depending on changing the strong relation mechanism with data.Enable the editor that data are completed by visualized operation, also can by the editor of data,
Real-time visual is shown.On the other hand, it is more true to nature to draw effect, it can analog simulation most road conditions in practice.Road
Right-hand rotation radius, lane broadening are more life-like, and road angle is theoretically obtainable the variation of 10-350 degree.So that user is emulating
When road cross is canalized, can efficiently it be drawn by data edition or visualized operation cooperating；And accomplish
Primary emulation, permanently filing, the analysis in later period show available.
Based on the same technical idea, it is imitative illustratively to show a kind of intersection channelization provided in an embodiment of the present invention by Figure 18
The structure of genuine device, the device can execute the process of intersection channelization emulation, which can be located at server shown in FIG. 1
In 100, it is also possible to the server 100.
As shown in figure 18, which specifically includes:
Acquiring unit 1801, the characteristic information of the crossing road for obtaining client transmission；
Processing unit 1802, for determining institute according to the characteristic information of the road and the center point coordinate at the crossing
State the value of the characteristic point of road canalization；The value for traversing the characteristic point of each road is led to using the right remote point of present road as starting point
The characteristic point that curve connects each road with straight line is crossed, the profile at the crossing is drawn out；On the basis of the profile at the crossing,
Draw out lane, lane markings, the pavement of each road at the crossing；
Transmission unit 1803, for the canalization information at the crossing drawn to be sent to the client, so that client
The canalization information at the crossing is shown by end.
Optionally, the characteristic information of the road include the width of road, the angle of road, road right-hand bend radius,
The offset of road, the broadening of road, road gradual change are long；The characteristic point of the road canalization includes right remote point, the road of road
Right proximal points, the left remote point of adjacent road, road import broadening on the right side of the endpoint in the vicinity, road of adjacent road on the right side of road
Proximal points, road import broadening remote point, outlet broadening proximal points of adjacent road on the right side of road, adjacent road on the right side of road
Outlet broadening remote point；
The processing unit 1802 is specifically used for:
According to the width of the road, the offset of the road, the right-hand bend half of the angle of the road, the road
The offset of adjacent road and road right side are adjacent on the right side of the width, the road of adjacent road on the right side of diameter, the road
The angle of road determines the value of the endpoint in the vicinity of adjacent road on the right side of the value and the road of the right proximal points of the road；
According to the value of the broadening of the road and the right proximal points of the road, the road import broadening proximal points are determined
Value；
According to the long value with road import broadening proximal points of the gradual change of the road, the road import broadening is determined
The value of remote point；
The value and first threshold that remote point is broadened according to the road import, determine the value of the right remote point of the road；
According to the value of the endpoint in the vicinity of adjacent road on the right side of the broadening of adjacent road on the right side of the road and the road, really
The value of the outlet broadening proximal points of adjacent road on the right side of the fixed road；
According to adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of the road and the road
Gradual change is long, determines the value of the outlet broadening remote point of adjacent road on the right side of the road；
According to the value and second threshold of the outlet broadening remote point of adjacent road on the right side of the road, determine that the road is right
The value of the left remote point of side adjacent road.
Optionally, the processing unit 1802 is also used to:
On the right side of the value for the right proximal points for determining the road and the road value of the endpoint in the vicinity of adjacent road it
Afterwards, it according to the value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the road and the road, determines and draws
The value at the first control point of right-hand rotation curve and the value at the second control point.
Optionally, the processing unit 1802 is also used to:
According to the long value with road import broadening proximal points of the gradual change of the road, the road imports exposition is determined
After the value of wide remote point, the value of proximal points and the value of road import broadening remote point are broadened according to the road import,
Determine the value of the value and the second control point of drawing the first control point of broadening curve of the road；
The outlet of adjacent road broadens adjacent road on the right side of the value and the road of proximal points on the right side of according to the road
Gradual change it is long, after the value of outlet broadening remote point for determining adjacent road on the right side of the road, according to phase on the right side of the road
The value of the outlet broadening remote point of the value and adjacent road on the right side of the road of the outlet broadening proximal points on neighboring trace road, determine described in
Draw the value at the first control point of the broadening curve of adjacent road on the right side of the road and the value at the second control point.
Optionally, the processing unit 1802 is also used to:
After the canalization information at the crossing by drafting is sent to the client, obtain what client was sent
First modification information；
According to first modification information, the characteristic point of the corresponding road canalization of first modification information is redefined
Value, and the value of the characteristic point according to the corresponding road canalization of first modification information, repaint the canalization letter at the crossing
Breath；
The canalization information at the crossing repainted is sent to the client.
Optionally, first modification information deviates for broadening and/or the gradual change length of the road and/or apart from crossing；
The processing unit 1802 is specifically used for:
It is deviated according to the broadening of the road and/or gradual change length and/or apart from crossing, redefines the road imports exposition
The value of the value of wide proximal points and road import broadening remote point.
Optionally, first modification information be the road right-hand bend radius and/or the road angle and/or
The offset of the road；
The processing unit 1802 is specifically used for:
According to the offset of the angle and/or the road of the right-hand bend radius of the road and/or the road, again really
The value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the fixed road and the road；And it successively redefines
The value of road import broadening proximal points, the value of road import broadening remote point, the road right remote point value,
The outlet of the value, road right side adjacent road of the outlet broadening proximal points of adjacent road broadens remote point on the right side of the road
Value, on the right side of the road the left remote point of adjacent road value.
Optionally, the processing unit 1802 is also used to:
After the canalization information at the crossing by drafting is sent to the client, obtain what client was sent
Second modification information；
According to second modification information, lane, lane markings, the pavement of each road at the crossing are repainted；
The canalization information at the crossing repainted is sent to the client.
Optionally, second modification information is ladder stop line；
The processing unit 1802 is specifically used for:
According to the ladder stop line, the lane of each road in the crossing is repainted.
Optionally, second modification information be non-motorized lane and/or turn around mouth width degree and/or intermediate isolating band and/
The area Huo Daihang distal excursion；
The processing unit 1802 is specifically used for:
According to the non-motorized lane, the non-motorized lane at the crossing is drawn and/or turn around mouth width degree and/or middle interval
From band and/or to row area distal excursion, according to the non-motorized lane of drafting and/or turn around mouth width degree and/or intermediate isolating band
And/or to row area, repaint lane, lane markings, the pavement of each road in the crossing.
Based on the same technical idea, the embodiment of the invention also provides a kind of calculating equipment, comprising:
Memory, for storing program instruction；
Processor executes above-mentioned crossing according to the program of acquisition for calling the program instruction stored in the memory
The method that emulation is canalized.
Based on the same technical idea, the embodiment of the invention also provides a kind of computer-readable non-volatile memories to be situated between
Matter, including computer-readable instruction, when computer is read and executes the computer-readable instruction, so that computer executes
The method for stating intersection channelization emulation.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagram
The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computers
Processor of the program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices
To generate a machine, so that generating use by the instruction that computer or the processor of other programmable data processing devices execute
In the dress for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram
It sets.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method of intersection channelization emulation characterized by comprising
Obtain the characteristic information for the crossing road that client is sent；
According to the center point coordinate of the characteristic information of the road and the crossing, the characteristic point of the road canalization is determined
Value；
The value for traversing the characteristic point of each road is connected respectively by curve with straight line using the right remote point of present road as starting point
The characteristic point of road draws out the profile at the crossing；On the basis of the profile at the crossing, each of the crossing is drawn out
Lane, lane markings, the pavement of road；
The canalization information at the crossing of drafting is sent to the client, so that client is by the canalization information at the crossing
It is shown.
2. the method as described in claim 1, which is characterized in that the characteristic information of the road includes the width of road, road
Angle, the right-hand bend radius of road, the offset of road, the broadening of road, road gradual change it is long；The characteristic point of the road canalization
The right proximal points of right remote point, road including road, the endpoint in the vicinity of road right side adjacent road, road right side adjacent road
Left remote point, road import broadening proximal points, road import broadening remote point, the outlet broadening of adjacent road is close on the right side of road
The outlet of adjacent road broadens remote point on the right side of endpoint, road；
It is described according to the characteristic information of the road and the center point coordinate at the crossing, determine the characteristic point of the road canalization
Value, comprising:
According to the width of the road, the offset of the road, the angle of the road, the right-hand bend radius of the road, institute
State adjacent road on the right side of the offset and the road of width, the road right side adjacent road of adjacent road on the right side of road
Angle determines the value of the endpoint in the vicinity of adjacent road on the right side of the value and the road of the right proximal points of the road；
According to the value of the broadening of the road and the right proximal points of the road, the road import broadening proximal points are determined
Value；
According to the long value with road import broadening proximal points of the gradual change of the road, road import broadening distal end is determined
The value of point；
The value and first threshold that remote point is broadened according to the road import, determine the value of the right remote point of the road；
According to the value of the endpoint in the vicinity of adjacent road on the right side of the broadening of adjacent road on the right side of the road and the road, institute is determined
State the value of the outlet broadening proximal points of adjacent road on the right side of road；
According to the gradual change of adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of the road and the road
It is long, determine the value of the outlet broadening remote point of adjacent road on the right side of the road；
According to the value and second threshold of the outlet broadening remote point of adjacent road on the right side of the road, phase on the right side of the road is determined
The value of the left remote point on neighboring trace road.
3. method according to claim 2, which is characterized in that value and the road in the right proximal points for determining the road
On the right side of road after the value of the endpoint in the vicinity of adjacent road, further includes:
According to the value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the road and the road, determines and draw
The value at the first control point of right-hand rotation curve and the value at the second control point.
4. method according to claim 2, which is characterized in that according to the gradual change of road length and the road imports exposition
The value of wide proximal points, after the value for determining road import broadening remote point, further includes:
The value of proximal points and the value of road import broadening remote point are broadened according to the road import, are determined and are drawn the road
The value at the first control point of the broadening curve on road and the value at the second control point；
On the right side of according to the road adjacent road outlet broadening proximal points value and the road on the right side of adjacent road gradually
It is elongated, after the value of outlet broadening remote point for determining adjacent road on the right side of the road, further includes:
According to the outlet of adjacent road on the right side of the value of the outlet broadening proximal points of adjacent road on the right side of the road and the road
The value for broadening remote point determines the value and the at the first control point of the broadening curve for drawing adjacent road on the right side of the road
The value at two control points.
5. such as the described in any item methods of Claims 1-4, which is characterized in that the canalization at the crossing by drafting
Information is sent to after the client, further includes:
Obtain the first modification information that client is sent；
According to first modification information, the value of the characteristic point of the corresponding road canalization of first modification information is redefined,
And the value of the characteristic point according to the corresponding road canalization of first modification information, repaint the canalization information at the crossing；
The canalization information at the crossing repainted is sent to the client.
6. method as claimed in claim 5, which is characterized in that first modification information be the road broadening and/or
Gradual change is long and/or deviates apart from crossing；
It is described according to first modification information, redefine the characteristic point of the corresponding road canalization of first modification information
Value, comprising:
It is deviated according to the broadening of the road and/or gradual change length and/or apart from crossing, it is close to redefine the road import broadening
The value of the value of endpoint and road import broadening remote point.
7. method as claimed in claim 5, which is characterized in that first modification information is the right-hand bend radius of the road
And/or the road angle and/or the road offset；
According to first modification information, the value of the characteristic point of the corresponding road canalization of first modification information is redefined,
Include:
The offset according to the right-hand bend radius of the road and/or the angle of the road and/or the road, again really
The value of the endpoint in the vicinity of adjacent road on the right side of the value of the right proximal points of the fixed road and the road；And it successively redefines
The value of road import broadening proximal points, the value of road import broadening remote point, the road right remote point value,
The outlet of the value, road right side adjacent road of the outlet broadening proximal points of adjacent road broadens remote point on the right side of the road
Value, on the right side of the road the left remote point of adjacent road value.
8. such as the described in any item methods of Claims 1-4, which is characterized in that the canalization at the crossing by drafting
Information is sent to after the client, further includes:
Obtain the second modification information that client is sent；
According to second modification information, lane, lane markings, the pavement of each road at the crossing are repainted；
The canalization information at the crossing repainted is sent to the client.
9. method according to claim 8, which is characterized in that second modification information is ladder stop line；
It is described that lane, lane markings, the pavement of each road at the crossing are repainted according to second modification information,
Include:
According to the ladder stop line, the lane of each road in the crossing is repainted.
10. method according to claim 8, which is characterized in that second modification information is non-motorized lane and/or turns around
Mouth width degree and/or intermediate isolating band and/or to row area distal excursion；
It is described that lane, lane markings, the pavement of each road at the crossing are repainted according to second modification information,
Include:
According to the non-motorized lane, the non-motorized lane at the crossing is drawn and/or turn around mouth width degree and/or intermediate isolating band
And/or to row area distal excursion, according to the non-motorized lane of drafting and/or turn around mouth width degree and/or intermediate isolating band and/or to
Row area repaints lane, lane markings, the pavement of each road in the crossing.
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| CN113850993A (en) * | 2021-09-09 | 2021-12-28 | 安徽科力信息产业有限责任公司 | Signal channelizing rendering method and system for traffic road intersection |
| CN115797506A (en) * | 2022-12-16 | 2023-03-14 | 江苏泽景汽车电子股份有限公司 | Method and device for drawing lane line object, terminal equipment and storage medium |
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Application publication date: 20191119 |