CN105976698B - Road rendering method and device in a kind of electronic map - Google Patents
Road rendering method and device in a kind of electronic map Download PDFInfo
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- CN105976698B CN105976698B CN201610284391.3A CN201610284391A CN105976698B CN 105976698 B CN105976698 B CN 105976698B CN 201610284391 A CN201610284391 A CN 201610284391A CN 105976698 B CN105976698 B CN 105976698B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/003—Maps
- G09B29/005—Map projections or methods associated specifically therewith
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/003—Maps
- G09B29/006—Representation of non-cartographic information on maps, e.g. population distribution, wind direction, radiation levels, air and sea routes
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Abstract
The invention discloses the road rendering methods and device in a kind of electronic map.Road rendering method in the electronic map includes: intersecting area data and road information data based on the road with grade separation relationship, is cut to the data of the intersecting area of underpass highway；According to cutting as a result, being rendered to upper and lower level road.Utilize the road rendering method in electronic map provided by the invention, it solves when being rendered using existing electronic map road rendering method to the intersecting area of the road comprising grade separation relationship, it is easy to appear the inconsistent phenomenon of data, the problem of causing constructed electronic map not match with actual road conditions, has achieved the purpose that the goodness of fit for improving the electronic map comprising stereo region and real road.
Description
Technical field
The present embodiments relate to the road rendering methods and dress in map structuring technology more particularly to a kind of electronic map
It sets.
Background technique
Grade separation road refer to two or more road intersecting area establish upper lower leaf, it is multi-direction traveling,
The modernization landbridge that do not interfere with or disturb each other mutually.
Due to its distinctive road structure of grade separation road, in electronic map building process, how to include grade separation close
It is a difficult point that road in the electronic map of system, which carries out rendering,.Currently, mainly being closed according to the grade separation of grade separation road intersecting area
System, intercepts the sub- section data of the grade separation road intersecting area upper layer road, then with the upper layer road obtained after interception
The overlying roaduay segment data of the intersecting area in the sub- section data cover electronic map on road, so that obtaining includes grade separation relationship
Electronic map.
During using above method building electronic map, due to being cut in the sub- section data to upper layer road
It is to be intercepted based on line segment when taking, and the standard that the width of line segment in the field of business is not unified.With the upper layer road intercepted
Sub- section data cover electronic map in the intersecting area overlying roaduay segment data after, be easy to appear that data are inconsistent to be showed
As causing in last constructed electronic map, the phenomenon that intersecting area is jagged or usual friendship occurs, i.e. constructed electronics
Map does not match with actual road conditions.
Summary of the invention
The present invention provides road rendering method and device in a kind of electronic map, is improved with realizing comprising stereo region
The purpose of the goodness of fit of electronic map and real road.
In a first aspect, the embodiment of the invention provides the road rendering method in a kind of electronic map, in the electronic map
Road rendering method include:
Intersecting area data and road information data based on the road with grade separation relationship, the intersection to underpass highway
The data in region are cut；
According to cutting as a result, being rendered to upper and lower level road.
Second aspect, the embodiment of the invention also provides the road rendering device in a kind of electronic map, the electronic maps
In road rendering device include:
Road cuts module, for intersecting area data and road information number based on the road with grade separation relationship
According to being cut to the data of the intersecting area of lower layer；
Road rendering module, for according to cut as a result, being rendered to upper and lower level road.
The embodiment of the present invention by being cut to the underpass highway in intersecting area in the road with grade separation relationship, and
According to cutting as a result, being rendered to upper and lower level road.Compared with existing electronic map road rendering method, the present invention is mentioned
The technical solution of confession only does cutting processing to underpass highway, influences on upper layer road smaller.In addition, due to not needing after cutting
Data cover in the intersecting area of electronic map, therefore there is no after covering, the inconsistent problem of data would not also go out
The phenomenon that existing constructed electronic map does not match with actual road conditions.Technical solution of the embodiment of the present invention solves benefit
When being rendered with existing electronic map road rendering method to the intersecting area of the road comprising grade separation relationship, it is easy to appear
The inconsistent phenomenon of data, has reached and has mentioned the problem of causing constructed electronic map not match with actual road conditions
The purpose of the goodness of fit of electronic map of the height comprising stereo region and real road.
Detailed description of the invention
Fig. 1 is the flow chart of the road rendering method in a kind of electronic map that the embodiment of the present invention one provides；
Fig. 2 is a kind of schematic diagram cut to the data of the intersecting area of underpass highway；
Fig. 3 is another schematic diagram cut to the data of the intersecting area of underpass highway；
Fig. 4 a is the effect picture of electronic map before rendering to upper layer road intersecting area boundary；
Fig. 4 b is the effect picture to electronic map after the rendering of upper layer road intersecting area boundary；
Fig. 5 is the flow chart of the road rendering method in a kind of electronic map provided by Embodiment 2 of the present invention；
In the case that Fig. 6 is the known road that there is grade separation relationship each other, the road that there is grade separation relationship each other is determined
A kind of schematic diagram of intersecting area；
Fig. 7 is a kind of schematic diagram that whether there is grade separation relationship between determining a plurality of road；
Fig. 8 is the structural schematic diagram of the road rendering device in a kind of electronic map that the embodiment of the present invention three provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is the flow chart of the road rendering method in a kind of electronic map that the embodiment of the present invention one provides, this implementation
Example is applicable to during constructing electronic map, and to the case where there is the road of grade separation relationship to render, this method can
To be executed by the road rendering device of electronic map, which can be realized by the mode of hardware and/or software.This is electronically
Road rendering method in figure specifically comprises the following steps:
S110, intersecting area data and road information data based on the road with grade separation relationship, to underpass highway
The data of intersecting area cut.
Here, the road with grade separation relationship refers to two or more road each other with antarafacial relationship, this
A little roads respectively with extended in different directions in the plane of ground different height.It should be noted that in daily life, removing
Outside viaduct, ordinary road and perpendicular overpass or underpass can equally form the road with grade separation relationship
Road.In addition, mentioned underpass highway and the upper layer road hereinafter referred to are opposite concepts here, and illustratively, tool
It is underpass highway away from the low road of ground level in the two road for having grade separation relationship, another road is upper layer road.
Intersecting area refers to by a plurality of road with grade separation relationship while after being projected on same plane parallel to the ground,
Each road projects the region mutually to coincide.The intersecting area data of road with grade separation relationship specifically include the intersecting area
The shape etc. of the coordinate, intersecting area put on boundary.Road information data include road away from ground level, width, length and
Road node data；Wherein, road node data includes: road start point data and road endpoint data.It should be noted that
It only include a road start point data and a road endpoint data if certain road only extends in one direction, which rises
The line of point and road terminal is the extending direction of the road.It, can will from its bending place if certain road is there are bending place
The road is divided into multiple sub- sections, and each sub- section only includes a road start point data and a road endpoint data,
The line of the road starting point and road terminal is the extending direction in the sub- section.
By taking two roads with grade separation relationship as an example, the specific implementation process of this step are as follows: firstly, based on having grade separation
The intersecting area data and road information data of the road of relationship determine that terminal and second section is truncated in the first of underpass highway
Disconnected terminal, wherein the first truncation terminal and the second truncation terminal are the intersecting area boundary and the lower layer road
The intersection point on road；Secondly, the starting point of the underpass highway and the first truncation terminal are constituted first truncation road, this second is truncated
The terminal of terminal and the underpass highway constitutes the second truncation road, and terminal and the second truncation is truncated eventually by the first of the underpass highway
The corresponding data in sub- section between point are deleted, and are cut with realizing to the data of the intersecting area of underpass highway.
Fig. 2 and Fig. 3 is respectively the original cut in the case of giving two kinds to the data of the intersecting area of underpass highway
Reason figure.It is described in detail below with reference to the process that data of the Fig. 2 or Fig. 3 to the intersecting area of underpass highway are cut.
When underpass highway only extends in one direction, as shown in Fig. 2, there are grade separation relationships for road 1 and road 2.Due to
Road 1 and road 2 only extend in one direction, and road 1 only includes an a road starting point A1 and road terminal A2, together
Sample, road 2 only includes an a road starting point B1 and road terminal B2.The intersecting area of road 1 and road 2 is
abcd.Assuming that height of the road 2 away from ground is 3 meters in Fig. 2, height of the road 1 away from ground is 6 meters, under can knowing that road 2 is
Layer road, road 1 are upper layer road.There are intersection point C1 and intersection point C2 with the boundary intersecting area abcd for road 2.Wherein, intersection point
C1 is the first truncation terminal, and intersection point C2 is the second truncation terminal.Truncation terminal (intersection point C1) structure of the starting point B1 of the road 2 and first
At the first truncation road B1C1, the second truncation terminal (intersection point C2) of the road 2 and the terminal B2 of the road 2 constitute the second truncation
Road C2B2 has thus achieved the purpose that the data of the intersecting area to underpass highway (road 1) are cut.
When underpass highway is there are when bending place, as shown in figure 3, road 1 and road 2 are under there are grade separation relationships, and road 2 is
Layer road.There are bending place (in Fig. 3 in elliptical region), the bending places, and road 2 is divided into two sub- roads for road 2, point
It Wei not the first sub- road 21 and the second sub- road 22.First sub- road 21 only includes a road starting point B1 and a road end
Point B2, similarly, the second sub- road 22 only include an a road starting point D1 and road terminal D2.At this point, under determination
Before first truncation terminal of layer road and the second truncation terminal, need to judge the 2 specific position intersecting area abcd of road 1 and road
In on which sub- section of underpass highway.In Fig. 3, road 1 and 2 intersecting area of road are located at the first sub- road 21 of underpass highway
On, then determine that the intersection point C1 of road 1 and the first sub- 21 intersecting area of road of road 2 is the first truncation terminal, intersection point C2 is the
After two truncation terminals, the truncation of the starting point B1 of the sub- road 21 of road 2 first and first terminal (intersection point C1) constitutes the first truncation road
Road B1C1, the second truncation terminal (intersection point C2) of the sub- road 21 of road 2 first and the terminal B2 of the road 2 constitute the second truncation
Road C2B2 has thus achieved the purpose that the data of the intersecting area to underpass highway (road 2) are cut.
S120, according to cutting as a result, being rendered to upper and lower level road.
Here, cutting result includes each point coordinate etc. on the overall effect and clipping boundary of electronic map after cutting.Root
According to cutting as a result, being rendered to upper and lower level road, refer in the overall effect to map according to electronic map after cutting all
Or the boundary of part road is described.It should be noted that in view of in practical operation, after underpass highway cutting, upper layer
Road boundary will receive the influence of underpass highway fill color, optionally, according to each point coordinate pair upper layer road on clipping boundary
The road boundary of intersecting area is described, and specifically, clipping boundary is extracted in the form of line segment, and extracts to this
Clipping boundary line segment described.Fig. 4 a and Fig. 4 b are set forth in actual operation to upper layer road intersecting area boundary
Effect picture before rendering and after rendering.It can be seen that from the dashed rectangle region in Fig. 4 a and filled out after cutting by underpass highway
The influence of color is filled, upper layer road boundary is unintelligible.After to the rendering of upper layer road intersecting area boundary, upper layer road intersecting area
Clear border is illustrated.
The embodiment of the present invention by being cut to the underpass highway in intersecting area in the road with grade separation relationship, and
According to cutting as a result, being rendered to upper and lower level road.Compared with existing electronic map road rendering method, the present embodiment skill
Art scheme only does cutting processing to underpass highway, influences on upper layer road smaller.In addition, due to not needing the data after cutting
It is covered in the intersecting area of electronic map, therefore there is no after covering, institute's structure would not also occur in the inconsistent problem of data
The phenomenon that electronic map built does not match with actual road conditions.Technical solution of the embodiment of the present invention is solved using existing
Electronic map road rendering method when being rendered to the road intersecting area comprising grade separation relationship, it is different to be easy to appear data
The phenomenon that cause, the problem of causing constructed electronic map not match with actual road conditions, have reached raising comprising vertical
Hand over the purpose of the electronic map in region and the goodness of fit of real road.
It should be noted that when the intersecting area that a certain region in map is two or more the roads with grade separation relationship
When, it can be ranked up according to each height of the road away from ground according to the sequence of ascending (or descending), after sequence
The sequence of height ascending (or descending) by them successively in pairs, to the data of the intersecting area of underpass highway
It is cut, upper and lower level road is rendered.Illustratively, if certain region is the intersection of four roads with grade separation relationship
Region is ranked up according to this four height of road away from ground according to ascending sequence, it is assumed that its ranking results is the
The 4th road height of one road height < the second road height < third road height <.Firstly, the first road and the second road
Constitute one group.The first road is underpass highway in this group, and the second road is upper layer road.According to the first road and second
The intersecting area data of road and its respective road information data, cut out the data of the intersecting area of the first road
Cut, and to after cutting the first road and the second road render.Secondly, the second road and third road that are obtained after rendering
One group is constituted, the second road obtained after rendering in this group is underpass highway, and third road is upper layer road.According to wash with watercolours
The intersecting area data and its respective road information data of the second road and third road that obtain after dye are obtained to after rendering
To the data of intersecting area of the second road cut, and to after cutting the second road and third road render.
Finally, the third road and the 4th road that obtain after rendering constitute one group, the third road obtained after rendering in this group is i.e.
For underpass highway, the 4th road is upper layer road.According to the intersecting area number of the third road and the 4th road that are obtained after rendering
Accordingly and its respective road information data, the data of the intersecting area of the third road obtained after rendering are cut, and
To after cutting third road and the 4th road render.
Embodiment two
Fig. 5 is the flow chart of the road rendering method in another electronic map provided by Embodiment 2 of the present invention.With reality
It applies technical solution provided by example one to compare, in the present embodiment, carries out cutting it in the data of the intersecting area to underpass highway
Before, it further include the intersecting area that identification has the road of grade separation relationship, and record the intersecting area data.Specifically, the electronics
Road rendering method in map includes:
S210, identifying has the intersecting area of the road of grade separation relationship, and records the intersecting area data.
This step in the process of implementation, is primarily present two kinds of situations, one is, it is known that the road with grade separation relationship, but
It is to its specific intersecting area and not know.Another is, in electronic map which road have grade separation relationship and this
The intersecting area of a little roads with grade separation relationship is uncertain.Identification under both of these case, which is set forth, in Fig. 6 and Fig. 7 has
The schematic diagram of the intersecting area of the road of grade separation relationship.Both of these case is illustrated respectively below with reference to Fig. 6 and Fig. 7.
It is directed to the first situation, it, can be according to the road with grade separation relationship due to the known road with grade separation relationship
The road node data on road determines the road intersection point of upper layer road and underpass highway, in conjunction with road intersection point and the width of each road
It spends and determines intersecting area.Illustratively, as shown in fig. 6, road 1 and road 2 there are grade separation relationships.Since road 1 and road 2 are equal
It only extends in one direction, road 1 only includes an a road starting point A1 and road terminal A2, and similarly, road 2 only wraps
Include a road starting point B1 and road terminal B2.Linking-up road starting point A1 and road terminal A2, obtains line segment A1A2.
Linking-up road starting point B1 and road terminal B2, obtains line segment B1B2.Line segment A1A2 and line segment B1B2 intersects at a point O.The road O Dian Wei
The intersection point on road 1 and road 2.According to the coordinate of O point and the width of road 1 and road 2, the phase of road 1 with road 2 can be determined
Friendship region is abcd, and available intersecting area data.
For second situation, need first to determine that there are grade separation relationships between which road, then identify with grade separation relationship
Road intersecting area.It is determining between which road there are when grade separation relationship, it can be by the coordinate of each point on every road
Data are compared with the coordinate data of each point on other roads one by one, determine the road and other roads with the presence or absence of grade separation
Relationship, until identifying all roads with grade separation relationship in electronic map.Undoubtedly, above method heavy workload, identification electricity
Whole roads with grade separation relationship spends the time long in sub- map.
Typically, road information data are also based on, spatial index is established；According to spatial index, determination exists each other
The intersecting area of the road of grade separation relationship and the road, and record the intersecting area data.Here it is based on road information number
According to, establish spatial index, in particular to, electronic map is divided into multiple grids, and record the coordinate range of each grid.This
When, the road on electronic map cover within the grid or between region, such as Fig. 7.It illustratively only include three roads in Fig. 7
Road, respectively road 3, road 4 and road 5.Wherein, road 4 covers multiple grids (shadow region in Fig. 7).Determining certain
Road whether between other roads there are when grade separation relationship, it is only necessary to successively judge each grid that each road is covered is whether
Covered by other roads, if some grid is covered by least two roads really, cover the grid each road it
Between may be at there are grade separation relationships.At this point, further judgement covers the grid in conjunction with the height in at least two road in the grid
Whether there is grade separation relationship between the road of lattice.If cover has grade separation relationship really between the road of the grid, the grid are judged
Each road in lattice is specially which sub- section of the road.According to the beginning and end in identified sub- section, determine each other
There are the intersecting areas of the road of grade separation relationship.Compared to by the coordinate data of each point on every road one by one and on other roads
The coordinate data of each point be compared, determine that the road and other roads whether there is the method for grade separation relationship, this method can
More quickly and easily to identify the road that there is grade separation relationship each other, and then determine that there are the intersections of the road of grade separation relationship
Domain.Optionally, in order to further increase the accuracy that identification has the road of grade separation relationship each other, electronic map can be divided
For grid as much as possible.
S110, intersecting area data and road information data based on the road with grade separation relationship, to underpass highway
The data of intersecting area cut.
S120, according to cutting as a result, being rendered to upper and lower level road.
Due to often existing and not knowing the specific intersecting area of road or intersecting area with grade separation relationship in reality
The problem of error in data, leads to not render the road with grade separation relationship well in electronic map, makes it not
The hierarchical relationship up and down of each road can be shown well, and the present embodiment technical solution passes through in the intersection to underpass highway
Before the data in domain are cut, identifying has the intersecting area of the road of grade separation relationship, and records the intersecting area data, can
To achieve the purpose that clear intersecting area data or verify intersecting area data, to prevent carrying out wash with watercolours to the road in electronic map
It flogs a dead horse when dye.
Embodiment three
Fig. 8 is the road rendering device in a kind of electronic map that the embodiment of the present invention three provides.As shown in fig. 7, the electricity
Road rendering device in sub- map includes that road cuts module 310 and road rendering module 320.Wherein, road cuts mould
Block 310, for intersecting area data and road information data based on the road with grade separation relationship, to the intersection of lower layer
The data in domain are cut；Road rendering module 320, for according to cut as a result, being rendered to upper and lower level road.
The embodiment of the present invention by being cut to the underpass highway in intersecting area in the road with grade separation relationship, and
According to cut as a result, being rendered to upper and lower level road, solve using existing electronic map road rendering method to comprising
When the road intersecting area of grade separation relationship is rendered, be easy to appear the inconsistent phenomenon of data, cause it is constructed electronically
Figure the problem of not matching with actual road conditions, reached improve include stereo region electronic map and real road
The purpose of the goodness of fit.
Further, the road rendering device in the electronic map can also include intersecting area identification module, be used for
Before the data of the intersecting area to underpass highway are cut, identifying has the intersecting area of the road of grade separation relationship,
And record the intersecting area data.
Further, the intersecting area identification module may include: that spatial index establishes unit, for being believed based on road
Data are ceased, spatial index is established；Intersecting area determination unit, for according to spatial index, determination to have grade separation relationship each other
The intersecting area of road and the road, and record the intersecting area data.
Further, the road information data may include road away from ground level, width, length and road circuit node
Data；Wherein, the road node data includes: road start point data and road endpoint data.
Further, the road cuts module 310 and can specifically include:
Terminal determination unit is truncated, for intersecting area data and road information based on the road with grade separation relationship
Data, determine the underpass highway first truncation terminal and second truncation terminal, wherein it is described first truncation terminal and
Second truncation terminal is the intersection point on the intersecting area boundary and the underpass highway；
Underpass highway cuts unit, for the starting point of the underpass highway and the first truncation terminal to be constituted first section
The terminal of the second truncation terminal and the underpass highway is constituted the second truncation road, to realize to lower layer road by disconnected road
The data of the intersecting area on road are cut.
Further, the road rendering module 320 is specifically used for according to clipping boundary data to the upper layer road
The road boundary of intersecting area is described.
Method provided by any embodiment of the invention can be performed in the said goods, has the corresponding functional module of execution method
And beneficial effect.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (12)
1. the road rendering method in a kind of electronic map characterized by comprising
Projection intersecting area data and road information data based on the road with grade separation relationship, the projection to underpass highway
The data of the corresponding underpass highway of intersecting area are cut；
According to cutting as a result, carrying out border delineation to upper and lower level road.
2. the road rendering method in electronic map according to claim 1, which is characterized in that described to underpass highway
Before the data of intersecting area are cut, further includes:
It identifies the intersecting area with the road of grade separation relationship, and records the intersecting area data.
3. the road rendering method in electronic map according to claim 2, which is characterized in that the identification has grade separation
The intersecting area of the road of relationship, and record the intersecting area data and include:
Based on road information data, spatial index is established；
According to spatial index, the intersecting area of the road and the road that there is grade separation relationship each other is determined, and record the phase
Hand over area data.
4. the road rendering method in electronic map according to any one of claim 1-3, which is characterized in that the road
Road information data includes road away from ground level, width, length and road node data；
Wherein, the road node data includes: road start point data and road endpoint data.
5. the road rendering method in electronic map according to claim 4, which is characterized in that described based on grade separation
The projection intersecting area data and road information data of the road of relationship, under corresponding to the projection intersecting area of underpass highway
The data of layer road cut
Projection intersecting area data and road information data based on the road with grade separation relationship determine the of underpass highway
One truncation terminal and second truncation terminal, wherein it is described first truncation terminal and second truncation terminal be the intersection
The intersection point of zone boundary and the underpass highway；
The starting point of the underpass highway and the first truncation terminal are constituted into the first truncation road, by the second truncation terminal
The second truncation road is constituted with the terminal of the underpass highway, the data of the intersecting area of underpass highway are cut out with realizing
It cuts.
6. the road rendering method in electronic map according to any one of claim 1-3, which is characterized in that described
According to cutting as a result, carrying out border delineation to upper and lower level road, comprising:
Described according to road boundary of the clipping boundary data to the intersecting area of upper layer road.
7. the road rendering device in a kind of electronic map characterized by comprising
Road cuts module, for projection intersecting area data and road information number based on the road with grade separation relationship
According to being cut to the data of the corresponding underpass highway of projection intersecting area of lower layer；
Road rendering module is used for according to cutting as a result, carrying out border delineation to upper and lower level road.
8. the road rendering device in electronic map according to claim 7, which is characterized in that further include that intersecting area is known
Other module, for before the data of the intersecting area to underpass highway are cut, identifying to have the road of grade separation relationship
The intersecting area on road, and record the intersecting area data.
9. the road rendering device in electronic map according to claim 8, which is characterized in that the intersecting area identification
Module includes:
Spatial index establishes unit, for being based on road information data, establishes spatial index；
Intersecting area determination unit, for determining there is the road and the road of grade separation relationship each other according to spatial index
Intersecting area, and record the intersecting area data.
10. the road rendering device in the electronic map according to any one of claim 7-9, which is characterized in that described
Road information data include road away from ground level, width, length and road node data；
Wherein, the road node data includes: road start point data and road endpoint data.
11. the road rendering device in electronic map according to claim 10, which is characterized in that the road cuts mould
Block specifically includes:
Terminal determination unit is truncated, for projection intersecting area data and road information based on the road with grade separation relationship
Data, determine the underpass highway first truncation terminal and second truncation terminal, wherein it is described first truncation terminal and
Second truncation terminal is the intersection point on the intersecting area boundary and the underpass highway；
Underpass highway cuts unit, for the starting point of the underpass highway and the first truncation terminal to be constituted the first truncation road
The terminal of the second truncation terminal and the underpass highway is constituted the second truncation road, to realize to underpass highway by road
The data of intersecting area are cut.
12. the road rendering device in the electronic map according to any one of claim 7-9, which is characterized in that described
Road rendering module is specifically used for being described according to road boundary of the clipping boundary data to the intersecting area of upper layer road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610284391.3A CN105976698B (en) | 2016-04-29 | 2016-04-29 | Road rendering method and device in a kind of electronic map |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610284391.3A CN105976698B (en) | 2016-04-29 | 2016-04-29 | Road rendering method and device in a kind of electronic map |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105976698A CN105976698A (en) | 2016-09-28 |
| CN105976698B true CN105976698B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610284391.3A Active CN105976698B (en) | 2016-04-29 | 2016-04-29 | Road rendering method and device in a kind of electronic map |
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| CN108806472B (en) * | 2017-05-03 | 2021-05-28 | 腾讯科技（深圳）有限公司 | Road rendering method and device in electronic map, and processing method and device |
| CN107591080B (en) * | 2017-08-31 | 2020-05-26 | 城市生活（北京）资讯有限公司 | Method and device for drawing road gland relation |
| CN109377856A (en) * | 2018-10-31 | 2019-02-22 | 巴中彩颉电子商务有限公司 | A kind of regional customization cartography method |
| CN111383334B (en) | 2018-12-28 | 2022-08-19 | 北京嘀嘀无限科技发展有限公司 | System and method for rendering objects |
| CN111488411B (en) * | 2019-01-28 | 2023-03-21 | 阿里巴巴集团控股有限公司 | Road facility construction method and device, rendering method, medium and terminal |
| CN111062852B (en) * | 2019-12-16 | 2023-10-17 | 阿波罗智联(北京)科技有限公司 | Map rendering method and device, electronic equipment and storage medium |
| CN111695491B (en) * | 2020-06-10 | 2023-12-19 | 阿波罗智联(北京)科技有限公司 | Method and device for detecting pedestrians |
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