CN105574102B - A kind of method and device of electronic map data load - Google Patents
A kind of method and device of electronic map data load Download PDFInfo
- Publication number
- CN105574102B CN105574102B CN201510922569.8A CN201510922569A CN105574102B CN 105574102 B CN105574102 B CN 105574102B CN 201510922569 A CN201510922569 A CN 201510922569A CN 105574102 B CN105574102 B CN 105574102B
- Authority
- CN
- China
- Prior art keywords
- data
- map
- base map
- slice base
- slice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/51—Indexing; Data structures therefor; Storage structures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
Abstract
The invention discloses a kind of method and devices of electronic map data load, this method passes through the data buffer storage to point of interest, the body of a map or chart cutting that user accesses is generated to the slice base map of multiple blank and background transparent, the coordinate data information of the longitude and latitude of point of interest in the coordinate range of corresponding every slice base map and the data of caching, determine that icon corresponding with data is marked and drawed in slice base map in the position in slice base map and in real time, and then the slice base map after current plotting icon is superimposed with Background From Layer, the map for realizing big data quantity point of interest shows effect, the data load magnitude and loading efficiency of the big quantity point of interest of electronic map are improved compared with the existing technology, the phenomenon that improving longer client waiting time and white screen.
Description
Technical field
The present invention relates to the method and devices that field of communication technology more particularly to a kind of electronic map data load.
Background technique
In electronic map field, it is also me that the location information of POI (Point of Interest) i.e. point of interest, which is most basic,
The category information most paid close attention to, point of interest can be a house, a dining room, a school, bank etc. and we
The public place or mechanism of living closely bound up, building etc.；In safety-security area, the installation site of camera is also that we most close
The information of the heart, these information can solve a case for public security and provide faster more intuitive video information clue, be the coverage rate of day net engineering
Data are provided, also can provide foundation for the decision of emergency command.Under the background of Internet technology fast development, electronic map this
Kind visualization technique is also more and more in the deep application of safety-security area, and consequent is that a large amount of points of interest need on map
Show, the order of magnitude is from 1 thousand to one ten thousand, 100,000, even million ranks.Current main implementation has: 1, by point of interest with
The form of image labeling (Marker) is got on map；2, the approximate method showed is vacuated using point to show；3, by numerous interest
Point is shown in the form of figure layer on foreground.
However existing three kinds of technical solutions have that there are certain shortcomings, for example, the first image labeling point exhibition
Show scheme, because each marker point occupies the certain memory of browser, as the order of magnitude for the POI object for needing to show increases
It is long, from tens, at hundred, it is thousands of to it is tens of thousands of in addition 100,000 plus, the browser memory total size that these marker points occupy also with
The order of magnitude increases and rises violently, since the memory that browser accounts for operating system is limited, when marker point is to certain amount,
Very Caton is dragged because memory occupies the excessive map that will lead to, other operations are also relatively slow on map or even directly result in clear
Device of looking at, which is run quickly, bursts；Second of method approximation exhibition scheme with point polymerization, the program are only applicable to macroscopic view and show that point is substantially distributed
Situation is unable to satisfy safety-security area public security department and checks to the actual position and real-time video of video and other points of interest and wants
Ask, once and data volume rise to 100,000 ranks, the point bit quantity after polymerization also results in map Caton；The third uses visitor
Family end load the service of backstage figure layer mode, when needing to load big data quantity, server end generate mark and draw the figure layer compared with
Slowly, time-consuming more, when the continuous moving map position of client, ceaselessly can request to service to server end, at this time client
End will appear white screen phenomenon, just will appear map after a while, figure efficiency is poor out.
Therefore, the data load magnitude and loading efficiency for how improving the big quantity point of interest of electronic map, improve client
The phenomenon that waiting time is longer and white screen, is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
It is big to improve electronic map the embodiment of the invention provides a kind of method and device of electronic map data load
The load magnitude and loading efficiency of data volume point of interest improve the phenomenon that client waiting time is longer and white screen, realization 100,000
Add the load and displaying of interest point data.
The embodiment of the invention provides a kind of methods of electronic map data load, comprising:
The data needed for obtaining lookup point of interest in database；
The map reference range of active user's access is subjected to cutting, generates the slice base map of multiple blank and background transparent
And the corresponding coordinate range of every slice base map；
According to the longitude and latitude of point of interest in the data of the coordinate range and caching that are sliced base map described in every
Coordinate data information determines that position and in real time plotting of the icon corresponding with the data in the slice base map are cut described in
Piece base map；
Using the tile of engine map as Background From Layer, the slice base map after current mark and draw is added to the background
Figure layer.
It is described to visit active user in the above method provided in an embodiment of the present invention in a kind of possible embodiment
The map reference range asked carries out cutting, generates the slice base map and every slice base map pair of multiple blank and background transparent
The coordinate range answered, specifically includes:
The map reference range of active user's access is subjected to cutting, generates the identical blank of multiple sizes and background transparent
It is sliced base map and the corresponding coordinate range of every slice base map；Wherein, the shape of the slice base map is rectangle.
It is described to visit active user in the above method provided in an embodiment of the present invention in a kind of possible embodiment
The map reference range asked carries out cutting, specifically includes:
The map reference range of user's current accessed is cut in a manner of the customized setting slice base map size
Point.
In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, according to slice described in every
The coordinate data information of point of interest longitude and latitude in the coordinate range of base map and the data of caching, the determining and data
The slice base map is arrived in position and in real time plotting of the corresponding icon in the slice base map, specifically includes:
According to the coordinate range and picture of the slice base map of the Pixel Dimensions of icon corresponding with the data and every
Plain size generates the corresponding buffering coordinate range with boundary；
The data of caching are subjected to matching operation with corresponding buffering coordinate range, it is corresponding to obtain each slice base map
Data cached collection；
According to the Pixel Dimensions and corresponding buffering coordinate range for being sliced base map described in every, the data cached concentration is every
The Longitude and latitude coordinates data information of data, and the Pixel Dimensions of the icon of the data are corresponded to, the determining and number
According to relative position of the corresponding icon in each slice base map；
Data are marked and drawed to each relative position being sliced in base map in real time with form of icons.
It is described with engine map in the above method provided in an embodiment of the present invention in a kind of possible embodiment
The slice base map after current mark and draw is added to the Background From Layer, specifically includes as Background From Layer by tile:
Using the grid tile service figure layer of access engine map tile as Background From Layer, described in after current mark and draw
Slice base map is added to grid tile service figure layer.
The embodiment of the invention provides a kind of electronic map data load device, comprising: acquiring unit, cutting unit,
Mark and draw unit and superpositing unit；Wherein,
The acquiring unit is used for data and caching needed for obtaining lookup point of interest in database；
The map reference range that the cutting unit is used to access active user carries out cutting, generates multiple blank and back
The transparent slice base map of scape and the corresponding coordinate range of every slice base map；
The unit of marking and drawing is used for interest in the data according to the coordinate range and caching that are sliced base map described in every
The coordinate data information of the longitude and latitude of point determines position of the icon corresponding with the data in the slice base map simultaneously
It marks and draws in real time and arrives the slice base map；
The superpositing unit is used for using the tile of engine map as Background From Layer, by the slice bottom after current mark and draw
Figure is added to the Background From Layer.
In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the cutting unit is specific
For:
The map reference range of active user's access is subjected to cutting, generates the identical blank of multiple sizes and background transparent
Slice base map and the corresponding coordinate range of every slice base map；Wherein, the shape of the slice base map is rectangle.
In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the cutting unit is with certainly
The mode of the definition setting slice base map size carries out cutting to the map reference range of user's current accessed.
In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the plotting unit is specific
For:
According to the coordinate range and picture of the slice base map of the Pixel Dimensions of icon corresponding with the data and every
Plain size generates the corresponding buffering coordinate range with boundary；
The data of caching are subjected to matching operation with corresponding buffering coordinate range, it is corresponding to obtain each slice base map
Data cached collection；
According to the Pixel Dimensions and corresponding buffering coordinate range for being sliced base map described in every, the data cached concentration is every
The Longitude and latitude coordinates data information of data, and the Pixel Dimensions of the icon of the data are corresponded to, the determining and number
According to relative position of the corresponding icon in each slice base map；
Data are marked and drawed to each relative position being sliced in base map in real time with form of icons.
In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the superpositing unit is specific
For:
Using the grid tile service figure layer of access engine map tile as Background From Layer, described in after current mark and draw
Slice base map is added to grid tile service figure layer.
The present invention implements exemplary beneficial effect
The embodiment of the invention provides a kind of method and device of electronic map data load, electronic map data loads
Method include: from database obtain search point of interest needed for data and caching；The map reference that active user is accessed
Range carries out cutting, generates the slice base map and the corresponding coordinate range of every slice base map of multiple blank and background transparent；Root
According to every be sliced base map coordinate range and caching data in point of interest longitude and latitude coordinate data information, determine with
Slice base map is arrived in position and in real time plotting of the corresponding icon of data in slice base map；Using the tile of engine map as background
Slice base map after current mark and draw is added to Background From Layer by figure layer.It is loaded, will be used by the data buffer storage to point of interest in this way
The body of a map or chart cutting of family access is the slice base map of multiple blank and background transparent, the coordinate range of corresponding every slice base map
With the coordinate data information of longitude and latitude in the data of caching, position of the icon corresponding with data in slice base map is determined
And marked and drawed in slice base map in real time, and then the slice base map after current plotting is superimposed with Background From Layer, realize big number
Map according to amount point of interest shows effect, improves the data loading capacity of the big quantity point of interest of electronic map compared with the existing technology
Grade and loading efficiency, the phenomenon that improving longer client waiting time and white screen.
Detailed description of the invention
Fig. 1 is the method flow diagram of electronic map data provided in an embodiment of the present invention load；
Fig. 2 is the effect picture of the slice base map provided in an embodiment of the present invention marked and drawed icon to blank and background transparent；
Fig. 3 is the slice base map and the superimposed effect of Background From Layer after the icon provided in an embodiment of the present invention by plotting
Figure；
Fig. 4 is the electronic map bandwagon effect figure after big data quantity point of interest provided in an embodiment of the present invention load；
Fig. 5 is the apparatus structure schematic diagram of electronic map data provided in an embodiment of the present invention load.
Specific embodiment
With reference to the accompanying drawing, to the specific reality of the method and device of electronic map data provided in an embodiment of the present invention load
The mode of applying is described in detail.
The embodiment of the invention provides a kind of methods of electronic map data load, as shown in Figure 1, may include following step
It is rapid:
S101, data and caching needed for obtaining lookup point of interest in database；
S102, the map reference range of active user's access is subjected to cutting, generates cutting for multiple blank and background transparent
Piece base map and the corresponding coordinate range of every slice base map；
The coordinate of the longitude and latitude of point of interest in the data of S103, the coordinate range that base map is sliced according to every and caching
Data information determines that slice base map is arrived in position and in real time plotting of the icon corresponding with data in slice base map；
S104, using the tile of engine map as Background From Layer, the slice base map after current mark and draw is added to Background
Layer.
In the method for above-mentioned electronic map data load provided in an embodiment of the present invention, pass through the data buffer storage to point of interest
Load, wherein in Map Service starting, so that it may obtain required mass data from database, generation can it is high simultaneously
Hair read-write it is data cached, every data may include: interest vertex type, longitude and latitude coordinate data, working condition, affiliated
Organization number etc. (can increase field according to business demand)；And then the body of a map or chart cutting for accessing user is multiple blank and back
The coordinate data of longitude and latitude in the transparent slice base map of scape, the coordinate range of corresponding every slice base map and the data of caching
Information determines that position and in real time plotting of the icon corresponding with data in slice base map, then will be current to slice base map
Slice base map after plotting is superimposed with Background From Layer, and the map for realizing big data quantity point of interest shows effect, relative to existing
Technology improves the data load magnitude and loading efficiency of the big quantity point of interest of electronic map, improve the client waiting time compared with
The phenomenon that long and white screen, in addition, the method for electronic map data provided in an embodiment of the present invention load can use java technology
It realizes, can support cross-platform, the advantage easily disposed with lightweight.
In the specific implementation, in the above method provided in an embodiment of the present invention, step S102 can be specifically included: will be current
The map reference range of user's access carries out cutting, generates the slice base map of the identical blank of multiple sizes and background transparent and every
Open the corresponding coordinate range of slice base map；Wherein, the shape for being sliced base map is rectangle.Specifically, provided in an embodiment of the present invention
It, can be by the coordinate of the electronic map of user's current accessed in order to improve the data loading efficiency of electronic map in the above method
Range carries out cutting, generates the slice base map and the corresponding seat of every slice base map of the identical blank of multiple sizes and background transparent
Mark range, the corresponding coordinate range of every in this way slice base map, need data to be loaded can respectively with every slice base map
It is matched, the size and shape for being sliced base map due to every is identical, and then can use multithreading service, every slice base map
A corresponding threading service, so as to improve request of data and return to the efficiency of load.
Specifically, in the prior art, for example, in a manner of Marker on map show video point, the program be
A DOM Document Object Model is marked and drawed in browser as marker, then to the letter for needing to show on this marker object binding
Breath, the various attribute informations etc. in the message box for needing to show after object picture icon, click including displaying, message box,
Therefore a marker point occupies certain browser memory size, with the order of magnitude for the interest point object for needing to show
Increase, from tens, at hundred, it is thousands of to it is tens of thousands of in addition 100,000 plus, the browser memory total size that these marker points occupy also with
The order of magnitude increase and rise violently, since the memory that browser accounts for operating system is limited, when marker point to certain amount
When, because memory occupies excessive, lead to map dragging very Caton, other operations are also relatively slow on map or even directly result in
Browser, which is run quickly, bursts, and verified IE series major browsers can only carry within 1500 points.And it is provided in an embodiment of the present invention
The method of electronic map data load, every blank and the corresponding coordinate range of background transparent slice base map, need to be loaded
Data can be matched with every slice base map respectively, and the size and shape for being sliced base map due to every is identical, and then can be with
Using multithreading service, the corresponding threading service of every slice base map in this way may be used so as to improve the efficiency of data load
To realize other operations of the data second grade load of 150000 ranks without influencing map, it less will lead to browser and run quickly routed show
As occurring.
In the specific implementation, in the above method provided in an embodiment of the present invention, by the map reference model of active user's access
Carry out cutting is enclosed, can be specifically included: the map of user's current accessed being sat in a manner of customized setting slice base map size
It marks range and carries out cutting.Specifically, in the above method provided in an embodiment of the present invention, map reference range cutting is generated more
The size for opening blank and background transparent slice base map customized can be arranged, and can be directed to different engine map services in this way,
Using customized mode, the coordinate range of to map carries out cutting, forms blank and background transparent is sliced base map, and then will need
The data of load are marked and drawed in real time to slice base map, i.e., the method support times of electronic map data load provided in an embodiment of the present invention
What has issued engine map and the service of tile pyramid service, and across engine map service may be implemented.
In the specific implementation, in the above method provided in an embodiment of the present invention, step S103 can be specifically included:
The coordinate range and Pixel Dimensions of base map are sliced according to the Pixel Dimensions of icon corresponding with data and every,
Generate the corresponding buffering coordinate range with boundary；
The data of caching are subjected to matching operation with corresponding buffering coordinate range, obtain the corresponding caching of each slice base map
Data set；
According to the Pixel Dimensions and corresponding buffering coordinate range of slice base map, the data cached longitude for concentrating every data
With the Pixel Dimensions of latitude coordinate data information and the icon of corresponding data, determine icon corresponding with data in each slice
Relative position in base map；
Data are marked and drawed to each relative position being sliced in base map in real time with form of icons.
Specifically, in the above method provided in an embodiment of the present invention, according to the Pixel Dimensions of icon corresponding with data, with
And the coordinate range and Pixel Dimensions of every slice base map, the corresponding buffering coordinate range with boundary is generated, and then using more
Threading service, the corresponding threading service of every slice base map, by the data of caching and the progress of corresponding buffering coordinate range
With operation, the corresponding data cached collection of each slice base map is obtained, thus according to the Pixel Dimensions of slice base map and corresponding buffering
The picture of the icon of coordinate range, the data cached Longitude and latitude coordinates data information for concentrating every data and corresponding data
Plain size obtains relative position of the icon corresponding with data in each slice base map, and in real time marks and draws icon to slice bottom
It is as shown in Figure 2 to mark and draw result for figure.
Specifically, in the prior art, electronic map is shown with approximate gimmick using the exhibition method of polymerization, wherein
Main algorithm has the point aggregating algorithm (Grid-based Clustering) based on grid, the point aggregating algorithm based on distance
(Distance-based Clustering) and point aggregating algorithm based on grid and apart from combination.Most commonly used third
Point of the kind algorithm based on grid and apart from combination polymerize principle are as follows: does not have any known congruent point when initial, then to each point
It is iterated, calculates the outsourcing square an of point, if the outsourcing square of the outsourcing square of this point and existing congruent point
It is non-intersecting, then create congruent point (be different from front the algorithm based on direct range, here be not calculate point with point between at a distance from,
But the outsourcing square an of point is calculated, and square side length is specified by user or a default value is arranged in program), if phase
It hands over, then the point is aggregated in the congruent point, if point intersects with the outsourcing square of multiple known congruent points, calculate the point
It to the distance of congruent point, is aggregated in nearest congruent point, so recycles, finished until all the points all traverse, each contracting
It puts rank and all traverses all original point elements again, only mark a Marker point, while the point is represented how many point
Number be indicated on icon, the program is only applicable to macroscopic view and shows point substantially distribution situation, is unable to satisfy safety-security area public affairs
Requirement is checked to the actual position and real-time video of video and other points of interest by peace department, once and data volume rise to 10
Ten thousand ranks gather the point bit quantity after dissipating and also result in map Caton.And electronic map data load provided in an embodiment of the present invention
Method, can according to every blank and background transparent slice base map coordinate range, using multithreading service, every slice bottom
Scheme a corresponding threading service, the positional relationship of matching operation data and slice base map, obtains icon corresponding with data respectively
Relative position in slice base map, and icon is marked and drawed in real time to slice base map, the physical location of point of interest can be shown completely,
Convenient for the informationization application of safety-security area.
In the specific implementation, in the above method provided in an embodiment of the present invention, step S104 can be specifically included: being used and connect
Enter the grid tile service figure layer of engine map tile as Background From Layer, by it is current it is each mark and draw after slice base map be added to grid
Lattice tile service figure layer.Specifically, in the above method provided in an embodiment of the present invention, using the grid of access engine map tile
Tile service figure layer as Background From Layer, such as can access Police Geographic Information System, Google Maps, day map, ArcGIS,
The engine maps service such as Baidu map, Amap, MapABC, i.e., electronic map data load provided in an embodiment of the present invention
Method can support any engine map for having issued tile pyramid service and service, and then use transparent tile rotating savings figure
Data are marked and drawed the slice base map for arriving blank and background transparent, the slice bottom that will have been marked and drawed by target mode in real time with form of icons
The grid tile service map overlay of figure and access engine map service, after superposition as shown in figure 3, to realize big data
The map of amount shows effect, as shown in figure 4, big to be realized using the method for electronic data provided in an embodiment of the present invention load
The effect of data volume point of interest load.The data load magnitude of the big quantity point of interest of electronic map is improved compared with the existing technology
And loading efficiency, the phenomenon that improving longer client waiting time and white screen.
Specifically, in the prior art, using using numerous points of interest as a figure layer, i.e., the form of figure layer is in browser visitor
Family end show electronic map, specific principle for the big data quantity point that will be shown as special map engine such as
ArcGIS, one of Baidu special topic point figure layer, then issue the figure layer and service at a mapserver, in server-side handle
The service of this figure layer and the base map service of map are superimposed together, and generate a picture, and client browser only needs to load this
One whole picture is shown, however uses the mode of client load backstage figure layer service, when needing to load big data quantity
When, the server end generation plotting figure layer is slower, and it is time-consuming more, it, can not when the continuous moving map position of client
That stops requests to service to server end, and client will appear white screen phenomenon at this time, just will appear map after a while, out figure efficiency
It is poor with customer experience.And the method for electronic map data load provided in an embodiment of the present invention, it is marked and drawed using transparent tile
The mode of icon is marked and drawed data in real time to blank and background transparent slice base map with form of icons, the slice bottom that will have been marked and drawed
The grid tile service map overlay of figure and access engine map service, so that the map for realizing big data quantity shows effect,
It is longer and white to improve the client waiting time for the data loading efficiency for improving the big quantity of electronic map compared with the existing technology
The phenomenon that screen.
Based on the same inventive concept, the embodiment of the invention provides a kind of devices of electronic map data load, such as Fig. 5 institute
Show, may include: acquiring unit 01, cutting unit 02, marks and draws unit 03 and superpositing unit 04；Wherein, acquiring unit 01 is used for
Data and caching needed for obtaining lookup point of interest in database；The map that cutting unit 02 is used to access active user is sat
It marks range and carries out cutting, generate the slice base map and the corresponding coordinate range of every slice base map of multiple blank and background transparent；
Mark and draw the seat that unit 03 is used to be sliced the longitude and latitude of point of interest in the coordinate range of base map and the data of caching according to every
Data information is marked, determines that slice base map is arrived in position and in real time plotting of the icon corresponding with data in slice base map；Superposition is single
Slice base map after current plotting is added to Background From Layer for using the tile of engine map as Background From Layer by member 04.
The device of above-mentioned electronic map data load provided in an embodiment of the present invention, can be by acquiring unit to point of interest
Data buffer storage, the body of a map or chart cutting accessed user by cutting unit is the slice bottom of multiple blank and background transparent
Figure marks and draws the coordinate data information that unit is sliced longitude and latitude in the coordinate range of base map and the data of caching according to every,
Determine that slice base map is arrived in position and in real time plotting of the icon corresponding with data in slice base map, and then will by superpositing unit
Slice base map after current plotting is superimposed with Background From Layer, and the map for realizing big data quantity point of interest shows effect, relatively
The data load magnitude and loading efficiency of the big quantity point of interest of electronic map are improved in the prior art, improves client waiting
The phenomenon that time is longer and white screen.
In the specific implementation, in above-mentioned apparatus provided in an embodiment of the present invention, cutting unit is specifically used for: by active user
The map reference range of access carries out cutting, and the slice base map for generating the identical blank of multiple sizes and background transparent and every cut
The corresponding coordinate range of piece base map；Wherein, the shape for being sliced base map is rectangle.Specifically, provided in an embodiment of the present invention above-mentioned
In device, in order to improve the data loading efficiency of electronic map, can by cutting unit by user's current accessed electronically
The coordinate range of figure carries out cutting, generates the identical blank of multiple sizes and background transparent is sliced base map and every slice base map pair
The coordinate range answered, wherein cutting unit is in a manner of customized setting slice base map size to the map of user's current accessed
Coordinate range carries out cutting.The corresponding coordinate range of every in this way slice base map needs data to be loaded can respectively and often
It opens slice base map to be matched, the size and shape for being sliced base map due to every is identical, and then can use multithreading service, often
The corresponding threading service of slice base map is opened, so as to improve request of data and return to the efficiency loaded.
In the specific implementation, in above-mentioned apparatus provided in an embodiment of the present invention, mark and draw unit be specifically used for: according to data
The coordinate range and Pixel Dimensions of the Pixel Dimensions of corresponding icon and every slice base map generate corresponding with boundary
Buffer coordinate range；The data of caching are subjected to matching operation with corresponding buffering coordinate range, it is corresponding to obtain each slice base map
Data cached collection；The Pixel Dimensions and corresponding buffering coordinate range of base map are sliced according to every, it is data cached to concentrate every
The Pixel Dimensions of the icon of the Longitude and latitude coordinates data information and corresponding data of data determine figure corresponding with data
It is marked on the relative position in each slice base map；Data are marked and drawed to each relative position being sliced in base map in real time with form of icons.
Specifically, it in above-mentioned apparatus provided in an embodiment of the present invention, is cut according to the Pixel Dimensions of icon corresponding with data and every
The coordinate range and Pixel Dimensions of piece base map generate the corresponding buffering coordinate range with boundary, and then use multithreading service,
The data of caching are carried out matching operation with corresponding buffering coordinate range, obtained by the corresponding threading service of every slice base map
The corresponding data cached collection of each slice base map is obtained, the Pixel Dimensions and corresponding buffering coordinate range of base map are sliced according to every,
The Pixel Dimensions of the icon of the data cached Longitude and latitude coordinates data information for concentrating every data and corresponding data, are obtained
Relative position of the icon corresponding with data in each slice base map is taken, and icon is marked and drawed in real time to slice base map, Jin Erti
The efficiency of high data load.
In the specific implementation, in above-mentioned apparatus provided in an embodiment of the present invention, superpositing unit is specifically used for: using access ground
The grid tile service figure layer of figure engine tile as Background From Layer, by it is current it is each mark and draw after slice base map be added to grid watt
Piece services figure layer.Specifically, above-mentioned apparatus provided in an embodiment of the present invention can be supported any to have issued tile pyramid service
Engine map and service, using transparent tile plot target mode, data are marked and drawed in real time to blank with form of icons and
Background transparent is sliced base map, is taken the slice base map marked and drawed and the grid tile for accessing engine map service by superpositing unit
Business map overlay improves electronically compared with the existing technology so that the map for realizing big data quantity point of interest shows effect
The data load magnitude and loading efficiency for scheming big quantity point of interest, the phenomenon that improving longer client waiting time and white screen.
The embodiment of the invention provides a kind of method and device of electronic map data load, electronic map data loads
Method include: from database obtain search point of interest needed for data and caching；The map reference that active user is accessed
Range carries out cutting, generates the slice base map and the corresponding coordinate range of every slice base map of multiple blank and background transparent；Root
The coordinate data information of the longitude and latitude of point of interest in the coordinate range of base map and the data of caching is sliced according to every, really
The slice base map is arrived in position and in real time plotting of the fixed icon corresponding with data in the slice base map；With engine map
Tile as Background From Layer, by it is current it is each mark and draw after slice base map be added to Background From Layer.Pass through the number to point of interest in this way
It is loaded according to caching, the body of a map or chart cutting by user's access is the slice base map of multiple blank and background transparent, and corresponding every is cut
The coordinate data information of longitude and latitude in the coordinate range of piece base map and the data of caching determines that icon corresponding with data exists
Position in slice base map and marking and drawing in real time is sliced in base map, and then by the slice base map and Background From Layer after current plotting
Superposition, the map for realizing big data quantity point of interest show effect, it is emerging to improve the big quantity of electronic map compared with the existing technology
The phenomenon that data of interest point load magnitude and loading efficiency, improve longer client waiting time and white screen.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
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 every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
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.
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 (8)
1. a kind of method of electronic map data load characterized by comprising
Data and caching needed for obtaining lookup point of interest in database；
The map reference range of active user's access is subjected to cutting, generates the slice base map of multiple blank and background transparent and every
Zhang Suoshu is sliced the corresponding coordinate range of base map；
According to the coordinate of the longitude and latitude of point of interest in the data of the coordinate range and caching that are sliced base map described in every
Data information determines that the slice bottom is arrived in position and in real time plotting of the icon corresponding with the data in the slice base map
Figure；
Using the tile of engine map as Background From Layer, the slice base map after current mark and draw is added to the Background
Layer；
According to the coordinate of the longitude and latitude of point of interest in the data of the coordinate range and caching that are sliced base map described in every
Data information determines that the slice bottom is arrived in position and in real time plotting of the icon corresponding with the data in the slice base map
Figure, specifically includes:
According to the coordinate range and pixel ruler of the slice base map of the Pixel Dimensions of icon corresponding with the data and every
It is very little, generate the corresponding buffering coordinate range with boundary；
The data of caching are subjected to matching operation with corresponding buffering coordinate range, obtain the corresponding caching of each slice base map
Data set；
According to the Pixel Dimensions and corresponding buffering coordinate range for being sliced base map described in every, every number of the data cached concentration
According to Longitude and latitude coordinates data information, and the corresponding data icon Pixel Dimensions, it is determining with the data pair
Relative position of the icon answered in each slice base map；
Data are marked and drawed to each relative position being sliced in base map in real time with form of icons.
2. the method as described in claim 1, which is characterized in that the map reference range by active user's access is cut
Point, the slice base map and the corresponding coordinate range of every slice base map of multiple blank and background transparent are generated, is specifically included:
The map reference range of active user's access is subjected to cutting, generates cutting for the identical blank of multiple sizes and background transparent
Piece base map and the corresponding coordinate range of every slice base map；Wherein, the shape of the slice base map is rectangle.
3. method according to claim 2, which is characterized in that the map reference range by active user's access is cut
Point, it specifically includes:
Cutting is carried out to the map reference range of user's current accessed in a manner of the customized setting slice base map size.
4. the method as described in claim 1, which is characterized in that the tile using engine map will work as Background From Layer
The slice base map after preceding plotting is added to the Background From Layer, specifically includes:
Using the grid tile service figure layer of access engine map tile as Background From Layer, by the slice after current mark and draw
Base map is added to grid tile service figure layer.
5. a kind of device of electronic map data load characterized by comprising acquiring unit, cutting unit, mark and draw unit and
Superpositing unit；Wherein,
The acquiring unit is used for data and caching needed for obtaining lookup point of interest in database；
The map reference range that the cutting unit is used to access active user carries out cutting, generates multiple blank and background is saturating
Bright slice base map and the corresponding coordinate range of every slice base map；
The unit of marking and drawing is used for point of interest in the data according to the coordinate range and caching that are sliced base map described in every
The coordinate data information of longitude and latitude determines corresponding with data icon in the position being sliced in base map and real-time
Mark and draw the slice base map；
The superpositing unit is used to fold the slice base map after current mark and draw using the tile of engine map as Background From Layer
It is added to the Background From Layer；
The plotting unit is specifically used for:
According to the coordinate range and pixel ruler of the slice base map of the Pixel Dimensions of icon corresponding with the data and every
It is very little, generate the corresponding buffering coordinate range with boundary；
The data of caching are subjected to matching operation with corresponding buffering coordinate range, obtain the corresponding caching of each slice base map
Data set；
According to the Pixel Dimensions and corresponding buffering coordinate range for being sliced base map described in every, every number of the data cached concentration
According to Longitude and latitude coordinates data information, and the corresponding data icon Pixel Dimensions, it is determining with the data pair
Relative position of the icon answered in each slice base map；
Data are marked and drawed to each relative position being sliced in base map in real time with form of icons.
6. device as claimed in claim 5, which is characterized in that the cutting unit is specifically used for:
The map reference range of active user's access is subjected to cutting, generates cutting for the identical blank of multiple sizes and background transparent
Piece base map and the corresponding coordinate range of every slice base map；Wherein, the shape of the slice base map is rectangle.
7. device as claimed in claim 6, which is characterized in that the cutting unit is big with the customized setting slice base map
Small mode carries out cutting to the map reference range of user's current accessed.
8. device as claimed in claim 5, which is characterized in that the superpositing unit is specifically used for:
Using the grid tile service figure layer of access engine map tile as Background From Layer, by the slice after current mark and draw
Base map is added to grid tile service figure layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922569.8A CN105574102B (en) | 2015-12-11 | 2015-12-11 | A kind of method and device of electronic map data load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922569.8A CN105574102B (en) | 2015-12-11 | 2015-12-11 | A kind of method and device of electronic map data load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105574102A CN105574102A (en) | 2016-05-11 |
| CN105574102B true CN105574102B (en) | 2018-12-07 |
Family
ID=55884233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510922569.8A Active CN105574102B (en) | 2015-12-11 | 2015-12-11 | A kind of method and device of electronic map data load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105574102B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919592A (en) * | 2015-12-24 | 2017-07-04 | 北京计算机技术及应用研究所 | The method for setting up Multi-stage electronic map |
| CN110019618B (en) * | 2017-12-06 | 2022-12-09 | 华平信息技术股份有限公司 | Method and system for presenting multi-layer data of electronic map, memory and equipment |
| CN110535893A (en) * | 2018-05-24 | 2019-12-03 | 视联动力信息技术股份有限公司 | A kind of map datum rendering method and device based on browser |
| CN110825989A (en) * | 2018-07-23 | 2020-02-21 | 北京京东尚科信息技术有限公司 | Picture display method and device, electronic equipment and readable medium |
| CN109241213B (en) * | 2018-07-26 | 2021-08-06 | 汉华易美（天津）图像技术有限公司 | Electronic map point location aggregation method and device |
| CN109889785B (en) * | 2019-02-26 | 2021-01-01 | 高新兴科技集团股份有限公司 | Unity-based POI label display virtual simulation method |
| CN110930857B (en) * | 2019-05-31 | 2022-04-15 | 上海华兴数字科技有限公司 | Method and device for drawing scattered points |
| CN111260753B (en) * | 2020-02-13 | 2024-01-12 | 浙江华睿科技股份有限公司 | Map drawing method and device, storage medium and electronic device |
| CN112633980B (en) * | 2020-12-25 | 2021-11-02 | 环球车享汽车租赁有限公司 | Method, electronic device, and storage medium for vehicle website presentation |
| CN113722414A (en) * | 2021-09-02 | 2021-11-30 | 北京房江湖科技有限公司 | Drawing method and drawing system of label |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314479A (en) * | 2011-07-05 | 2012-01-11 | 万达信息股份有限公司 | Method for preventing repeated marking of slice map |
| CN102340536A (en) * | 2011-07-13 | 2012-02-01 | 北京世纪高通科技有限公司 | Method and device for searching points of interest |
| CN103955955A (en) * | 2014-04-30 | 2014-07-30 | 深圳华强信息产业有限公司 | Electronic map information processing method and device |
| CN104731783A (en) * | 2013-12-18 | 2015-06-24 | 高德软件有限公司 | Method and device for showing interesting points |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9881590B2 (en) * | 2014-03-12 | 2018-01-30 | HERE Global, B.V. | Method and apparatus for multi-resolution point of interest boundary identification in digital map rendering |
-
2015
- 2015-12-11 CN CN201510922569.8A patent/CN105574102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314479A (en) * | 2011-07-05 | 2012-01-11 | 万达信息股份有限公司 | Method for preventing repeated marking of slice map |
| CN102340536A (en) * | 2011-07-13 | 2012-02-01 | 北京世纪高通科技有限公司 | Method and device for searching points of interest |
| CN104731783A (en) * | 2013-12-18 | 2015-06-24 | 高德软件有限公司 | Method and device for showing interesting points |
| CN103955955A (en) * | 2014-04-30 | 2014-07-30 | 深圳华强信息产业有限公司 | Electronic map information processing method and device |
Non-Patent Citations (1)
| Title |
|---|
| web专题地图叠加方法;JuicyCat;《网易博客》;20100629;第1页第1-2段、第3页第2-7段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105574102A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105574102B (en) | A kind of method and device of electronic map data load | |
| CN105447101B (en) | Map engine implementation method and device | |
| US8903900B2 (en) | Managing map elements using aggregate feature identifiers | |
| CN110675728B (en) | Generation method, device and equipment of thermodynamic diagram and computer readable storage medium | |
| EP2954468B1 (en) | Providing indoor facility information on a digital map | |
| CN105164683B (en) | System and method for geo-location image | |
| US20120017168A1 (en) | Real time map rendering with data clustering and expansion and overlay | |
| CN109829022A (en) | A kind of the Internet map service system and construction method of fusion monitoring video information | |
| RU124014U1 (en) | PERSONALIZED INFORMATION SEARCH SYSTEM | |
| DE202012013426U1 (en) | Integrate maps and street views | |
| CN103606192A (en) | Wind field visual display method based on three-dimensional virtual globe | |
| JP6623299B2 (en) | Display method, apparatus and storage medium for map information | |
| US20180322143A1 (en) | Interactive Device With Three-Dimensional Display | |
| Li et al. | Webvrgis based city bigdata 3d visualization and analysis | |
| US8848983B1 (en) | System and method for ranking geographic features using viewshed analysis | |
| CN111080782A (en) | Visual system based on live-action three-dimensional geographic information system | |
| DE202014010894U1 (en) | System for disambiguation of the object selection | |
| US10198456B1 (en) | Systems and methods for data accuracy in a positioning system database | |
| US11402232B2 (en) | Off-viewport location indications for digital mapping | |
| DE202013012486U1 (en) | User interface for orienting a camera view towards surfaces within a 3-D map and facilities that incorporate the user interface | |
| CN106844623A (en) | A kind of smart city two-dimensional visualization display systems | |
| CN109857825A (en) | A kind of threedimensional model methods of exhibiting and system | |
| CN109345946A (en) | Map data displaying method, device, electronic equipment and computer storage medium | |
| CN103902633B (en) | A kind of method and its device, system of generation POI hot-zone data | |
| US20230065027A1 (en) | Gpu-based digital map tile generation method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |