CN103714164B - A kind of device and corresponding method controlling the translation of electronics map - Google Patents
A kind of device and corresponding method controlling the translation of electronics map Download PDFInfo
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- CN103714164B CN103714164B CN201310745517.9A CN201310745517A CN103714164B CN 103714164 B CN103714164 B CN 103714164B CN 201310745517 A CN201310745517 A CN 201310745517A CN 103714164 B CN103714164 B CN 103714164B
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000036316 preload Effects 0.000 claims abstract description 199
- 230000003321 amplification Effects 0.000 claims abstract description 34
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 34
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
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- 238000004590 computer program Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
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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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
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- G06F16/951—Indexing; Web crawling techniques
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- 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 present invention discloses a kind of method controlling the device of electronics map translation and translating with control electronics map, and wherein, the method comprises: when receiving the instruction of translation map, find out the multiple target tile needing loaded and displayed; Select preload display level based on current display level, find out preload tile corresponding with described target tile in preload display level; Obtain preload tile and target tile according to priority, load according to the rank difference between preload display level and current display level and amplify display preload tile; After getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position. By selecting preload display level and loading and amplify display preload tile, show fuzzy preload tile fast, reach the effect that there is blank probability when reducing translation electronics map in electronic map window.
Description
Technical field
The present invention relates to electronic map technique field, it is specifically related to a kind of method controlling the device of electronics map translation and translating with control electronics map.
Background technology
Current electronic map client side, instruction translation map at the translation map according to user (consults the electronics map network client end such as Baidu's map, Tengxun's map, also dragged by mouse-click and can translate electronics map) time, need the multiple target tile loading the tile periphery being positioned at current display, owing to target tile to server request target tile and is carried out the process such as image rendering by needs, so when translating electronics map, because needing to expend the more time so some tiles can not be shown in time, electronic map window can exist blank; When network performance is not good, the blank of electronics map is more obvious.
Summary of the invention
In view of the above problems, it is proposed that the present invention is to provide a kind of the control electronics map device translated and the method that control electronics map translates accordingly that overcome the problems referred to above or solve the problem at least in part.
According to an aspect of the present invention, it provides a kind of device controlling the translation of electronics map, this device comprises: target tile computing unit, is suitable for finding out, when receiving the instruction of translation map, the multiple target tile needing loaded and displayed; Preload tile computing unit, is suitable for selecting preload display level based on current display level, finds out preload tile corresponding with described target tile in preload display level; Loading unit, is suitable for obtaining preload tile and target tile according to priority, loads according to the rank difference between preload display level and current display level and amplifies display preload tile; And after getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position.
Can selection of land, described preload tile computing unit, be suitable for the preload display level selecting rank higher than current display level, map scope represented by described preload tile comprises the map scope represented by described multiple target tile, and the geographic areas corresponding to each preload tile is n times of the geographic areas corresponding to each target tile, n=4k, k is natural number, represents that the rank between preload display level and current display level is poor.
Can selection of land, described loading unit, is suitable for the horizontal width of each preload tile and longitudinally highly all amplifies m and doubly show, wherein, m=2k, k is natural number, represents that the rank between preload display level and current display level is poor.
Can selection of land, this device also comprises: buffer memory unit, is suitable for arranging local cache, and is kept in local cache by the tile shown.
Can selection of land, when the tile shown is kept in local cache by described buffer memory unit, if the capacity of local cache is not enough, then described buffer memory unit removes least recently used tile from local cache.
Can selection of land, described loading unit, is suitable for judging described preload tile and target tile whether in local cache, if being judged as YES, from local cache, then read preload tile and target tile, if being judged as NO, then from downloaded preload tile and target tile.
Can selection of land, described loading unit, is suitable for while loaded targets tile, increases the transparency of preload tile amplified; When the operation of loaded targets tile completes, remove preload tile and the display-object tile of amplification.
According to a further aspect in the invention, it provides a kind of method controlling the translation of electronics map, wherein, the method comprises: when receiving the instruction of translation map, find out the multiple target tile needing loaded and displayed; Select preload display level based on current display level, find out preload tile corresponding with described target tile in preload display level; Obtain preload tile and target tile according to priority, load according to the rank difference between preload display level and current display level and amplify display preload tile; After getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position.
Can selection of land, described preload display level is higher than current display level, map scope represented by described preload tile comprises the map scope represented by described multiple target tile, and the geographic areas corresponding to each preload tile is n times of the geographic areas corresponding to each target tile, n=4k, k is natural number, represents that the rank between preload display level and current display level is poor.
Can selection of land, described load according to the rank difference between preload display level and current display level and amplifies display preload tile, comprising: by the horizontal width of each preload tile with longitudinally highly all amplification m doubly shows, wherein, m=2k, k is natural number, represents that the rank between preload display level and current display level is poor.
Can selection of land, the method also comprises: arrange local cache; The tile shown is kept in local cache.
Can selection of land, the method also comprises: when being kept in local cache by the tile shown, if the capacity of local cache is not enough, then removes least recently used tile from local cache.
Can selection of land, described obtain preload tile and target tile according to priority and specifically comprise: judge described preload tile and target tile whether in local cache, if being judged as YES, from local cache, then read preload tile and target tile, if being judged as NO, then from downloaded preload tile and target tile.
Can selection of land, described loading also shows described target tile to replace the preload tile of the amplification of correspondence position, specifically comprises: while loaded targets tile, increases the transparency of preload tile amplified; When the operation of loaded targets tile completes, remove preload tile and the display-object tile of amplification.
The device of the control electronics map translation according to the present invention and the method for control electronics map translation can by selecting preload display level and loading and amplify display preload tile, show fuzzy preload tile fast, thus solve prior art when translating electronics map, because needing the more time so some tiles can not be shown in time, electronic map window can exist the problem of more blank, reach the effect that there is blank probability when reducing translation electronics map in electronic map window.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to the technique means of the present invention can be better understood, and can be implemented according to the content of specification sheets, and in order to above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the specific embodiment of the present invention.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become clear for those of ordinary skill in the art and understand. Accompanying drawing is only for illustrating the object of preferred implementation, and does not think limitation of the present invention. And in whole accompanying drawing, represent identical parts with identical reference symbol. In the accompanying drawings:
Fig. 1 shows the schema of the method controlling the translation of electronics map according to an embodiment of the invention;
Fig. 2 shows the detailed schema of step S400 as shown in Figure 1;
Fig. 3 shows the block diagram of the device of the translation of control electronics map according to a first embodiment of the present invention;
Fig. 4 shows the block diagram of the device of the translation of control electronics map according to a second embodiment of the present invention; And
Fig. 5 shows the schematic diagram of the electronic map client side realized according to the present invention.
Embodiment
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings more in detail. Although show exemplary embodiment of the present disclosure in accompanying drawing, it should be understood, however, that the embodiment that can realize the disclosure in a variety of manners and should do not set forth here limits. On the contrary, it is provided that these embodiments are to can more thoroughly understand the disclosure, and can pass on complete for the scope of the present disclosure to the technician of this area.
The technical conceive of the present invention is mainly, when receiving the instruction of translation map, it is determined that preload display level, finds out the target tile that need to show and the preload tile of corresponding with target tile (the map scope namely represented is corresponding). due to the number of preload tile fewer than the number of target tile (such as map scope represented by a preload tile is equivalent to the map scope represented by four of relatively low level or 16 an or more target tile), so it is shorter by the time required for downloaded target tile and loaded targets tile than using prior art by the time required for downloaded preload tile and loading preload tile, by preload tile is loaded and amplify the fuzzy preload tile of display, and after getting target tile, load and display-object tile to replace the amplification preload tile of correspondence position, reduce electronic map window when amplifying map and there is blank probability. by preload tile is loaded and amplify the fuzzy preload tile of display, and after getting target tile, load and display-object tile to replace the amplification preload tile of correspondence position, electronics map representation is to clearly procedure for displaying by fuzzy.
It should be noted that, electronics map tile, i.e. picture in grating map, these pictures are by certain rule, it is spliced into a complete electronics map, electronics map is amplified, the tile of relatively low level can be shown, in this area, to compare the map scope represented by single tile of low level big for the map scope represented by single tile of higher level, such as, in adjacent rank, a tile of higher level is equivalent to relatively map scope represented by low level four tiles, rank difference is in two ranks of two, a tile of higher level is equivalent to relatively map scope represented by low level 16 tiles.
Fig. 1 shows the schema of the method controlling the translation of electronics map according to an embodiment of the invention. The method comprises the steps that S100 is to step S400:
S100, receive translation map instruction time, find out the multiple target tile needing loaded and displayed. Wherein, those skilled in the art can be appreciated that, described target tile, namely under current display level, needs the new tile loaded during translation map. Specifically, when translating map, it is necessary to a map scope outside the map scope that new loaded and displayed currently shows, described target tile is namely corresponding to the map scope needing new loaded and displayed.
S200, based on current display level select preload display level, find out preload tile corresponding with described target tile in preload display level.
In the present embodiment, preload display level is higher than current display level. Map scope represented by preload tile comprises the map scope represented by multiple target tile, and the geographic areas corresponding to each preload tile is n times of the geographic areas corresponding to each target tile, n=4k, k is natural number, represents that the rank between preload display level and current display level is poor.
Goodly, in the present embodiment, in order to represent the information on map more in detail comprehensively, the preservation of electronics map adopts classification tile mechanism, map is divided into multiple level preserve, depositing corresponding grating map tile under each level, the tile under two adjacent display levels, four adjacent tiles under the display level that display level is low (i.e. four adjacent tiles in " field " font of 2 �� 2) are corresponding to a tile under the high display level of display level; Two layers of tiles for rank difference as two, 16 adjacent tiles (i.e. 16 adjacent tiles of 4 �� 4) under the display level that display level is low are corresponding to a tile under the high display level of display level. In the present embodiment, search the method for preload tile, it is possible to be the numbering utilizing the corresponding relation with target tile to be obtained preload tile by division rounding operation according to the numbering of target tile. In the present embodiment, due to the corresponding multiple target tile of each preload tile, so the map scope represented by described preload tile may be greater than the map scope represented by described multiple target tile.
S300, obtain preload tile and target tile according to priority, loads according to the rank difference between preload display level and current display level and amplify and show preload tile. By first showing the low amplification preload tile of fuzzy sharpness, loading velocity is fast, reduces the probability showing blank tile on electronics map.
In the present embodiment, load according to the rank difference between preload display level and current display level and amplify display preload tile, comprising: the horizontal width of each preload tile and longitudinal m that highly all amplifies doubly are shown, wherein, m=2k, k is natural number, represents that the rank between preload display level and current display level is poor. That is, if the rank difference between preload display level and current display level is 1, the horizontal width of each preload tile and longitudinal direction is highly all enlarged into 2 times and shows; If the rank difference between preload display level and current display level is 2, the horizontal width of each preload tile and longitudinal direction is highly all enlarged into 4 times and shows.
S400, after getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position. Replace corresponding fuzzy amplification preload tile with the use of target tile clearly, it is achieved clear display map and map denotation by fuzzy to display effect clearly.
Summary step S100, S200, S300 and S400, the present embodiment is by selection preload display level and loading and amplifies display preload tile, shows fuzzy preload tile fast, reduces the probability of the blank tile of electronics map denotation.
By performing step S200 and step S300 in the present embodiment, it is possible to the preload display level selecting current display level of ratio high and the amplification preload tile shown in this preload display level. By repeated execution of steps S200 and step S300, also the preload display level that multiple current display level of ratio is high and the amplification preload tile shown in multiple preload display level can be selected, in concrete enforcement, can amplification preload tile in the higher preload display level of first display level, amplification preload tile in the preload display level that display level is lower again, realizes map denotation by fuzzy equally to display effect clearly.
Further, the method also comprises: arrange local cache; The tile shown is kept in local cache. More specifically, the present embodiment, by creating local cache, controls the request frequency of tile. When amplifying map, it is possible to the tile that preferential display has been cached, reduce user and see blank probability, and utilize buffer memory can improve loading velocity, when server end does not add buffer memory head, also can avoid repetitive requests tile. Then the method for the present embodiment also comprises: when being kept in local cache by the tile shown, if the capacity of local cache is not enough, then removes least recently used tile from local cache. In other words, the realization of buffer memory adopts LRU(LeastRecentlyUsed, least recently used) strategy, when the tile in buffer memory exceedes the capacity of buffer memory setting, preferential can eliminate least recently used tile.
Goodly, the method of the selection preload display level in above-mentioned steps S200, it is several the ranks that the current display level of Selection radio is high, preload display level is selected from described each rank, specifically judge that tile corresponding with target tile in each rank described in the buffer or needs by downloaded, select to need to be preload display level by the rank that the tile number of downloaded is minimum thus accelerate the speed from downloaded preload tile, if needing identical by the tile number of downloaded further, the number that the rank that then prioritizing selection higher grade is preload display level thus reduces the preload tile that need to process is with speed up processing further.
In the present embodiment, above-mentioned steps S300 obtains preload tile and target tile according to priority and specifically comprises: judge preload tile and target tile whether in local cache, if being judged as YES, from local cache, then read preload tile and target tile, if being judged as NO, then from downloaded preload tile and target tile. By the tile preferentially obtained in buffer memory, it is possible to improve loading velocity.
Fig. 2 shows the detailed schema of step S400 as shown in Figure 1. The also display-object tile that loads of step S400, to replace the preload tile of the amplification of correspondence position, specifically comprises the following steps:
S410, while loaded targets tile, increase the transparency of preload tile amplified. In other words, when loaded targets tile, the preload tile of amplification is become transparent gradually.
S420, when the operation of loaded targets tile completes, remove preload tile and the display-object tile of amplification. Specifically, when having loaded corresponding to several the target tile of preload tile amplified, removing the preload tile of this amplification, several the target tile that display has loaded, electronics map is more clear.
In the present embodiment, according to different browsers version, it is provided that different plays up mechanism, it is to increase play up tile performance, with the loading that ensures in step S300 and amplify loading and the fluency of display-object tile operation in display preload tile operation and step S400. Such as, for the browser supporting webgl interface, it is provided that WebglRenderer plays up mechanism; For the browser supporting HTML5 label C anvas, it is provided that CanvasRenderer plays up mechanism; For the browser supporting CSS3, it is provided that CSSRenderer plays up mechanism; For the low version browser such as IE6, IE7, IE8, it is provided that FlashRendere plays up mechanism; For all browsers, it is provided that DivRenderer plays up mechanism.
Fig. 3 shows the block diagram of the device of the translation of control electronics map according to a first embodiment of the present invention. This device comprises target tile computing unit 100, preload tile computing unit 200 and loading unit 300.
Target tile computing unit 100, is suitable for finding out, when receiving the instruction of translation map, the multiple target tile needing loaded and displayed. Wherein, current display level is higher than target display level. Wherein, those skilled in the art can be appreciated that, target display level is the instruction of amplification map according to user's input and fixed, in other words, target display level be operated after the display level of electronics map. Being amplified by map in this area, can show the tile of relatively low level, it is big that the map scope represented by the tile of higher level compares the map scope represented by low level tile, and therefore target display level is lower than current display level.
Preload tile computing unit 200, is suitable for selecting preload display level based on current display level, finds out preload tile corresponding with described target tile in preload display level.
In the present embodiment, preload tile computing unit 200, be suitable for the preload display level selecting rank higher than current display level, map scope represented by described preload tile comprises the map scope represented by described multiple target tile, and the geographic areas corresponding to each preload tile is n times of the geographic areas corresponding to each target tile, n=4k, k is natural number, represents that the rank between preload display level and current display level is poor.
In the present embodiment, in order to represent the information on map more in detail comprehensively, the preservation of electronics map adopts classification tile mechanism, map is divided into multiple level preserve, corresponding grating map tile is deposited under each level, tile under two adjacent display levels, four adjacent tiles under the display level that display level is low (i.e. four adjacent tiles in " field " font of 2 �� 2) are corresponding to a tile under the high display level of display level; Two layers of tiles for rank difference as two, 16 adjacent tiles (i.e. 16 adjacent tiles of 4 �� 4) under the display level that display level is low are corresponding to a tile under the high display level of display level. In the present embodiment, preload tile computing unit 200 searches the method for preload tile, it is possible to be the numbering utilizing the corresponding relation with target tile to be obtained preload tile by division rounding operation according to the numbering of target tile. In the present embodiment, due to the corresponding multiple target tile of each preload tile, so the map scope represented by described preload tile may be greater than the map scope represented by described multiple target tile.
Loading unit 300, is suitable for obtaining preload tile and target tile according to priority, loads according to the rank difference between preload display level and current display level and amplifies display preload tile; And after getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position. By first showing fuzzy amplification preload tile, loading velocity is fast, reduces the probability showing blank tile on electronics map. Replace corresponding fuzzy amplification preload tile with the use of target tile clearly, it is achieved clear display map and map denotation by fuzzy to display effect clearly.
In the present embodiment, loading unit 300, is suitable for the horizontal width of each preload tile and longitudinally highly all amplification m doubly shows, wherein, and m=2k, k is natural number, represents that the rank between preload display level and current display level is poor. That is, if the rank difference between preload display level and target display level is 1, the horizontal width of each preload tile and longitudinal direction are highly all enlarged into 2 times and show by loading unit 300; If the rank difference between preload display level and target display level is 2, the horizontal width of each preload tile and longitudinal direction are highly all enlarged into 4 times and show by loading unit 300.
In the present embodiment, loading unit 300, is suitable for while loaded targets tile, increases the transparency of the preload tile amplified; When the operation of loaded targets tile completes, remove preload tile and the display-object tile of amplification. Specifically, when loaded targets tile, the preload tile of amplification is become transparent gradually; When having loaded corresponding to several the target tile of preload tile amplified, remove the preload tile of this amplification, several the target tile that display has loaded, make electronics map more clear.
Fig. 4 shows the block diagram of the device of the translation of control electronics map according to a second embodiment of the present invention. The present embodiment is similar to the first embodiment as shown in Figure 3, and difference is, this device also comprises: buffer memory unit 400.
Buffer memory unit 400, is suitable for arranging local cache, and is kept in local cache by the tile shown. Local cache is created, the request frequency of control tile by buffer memory unit 400. During translation map, it is possible to the tile that preferential display has been cached, reduce user and see blank probability, and utilize buffer memory can improve loading velocity, when server end does not add buffer memory head, also can avoid repetitive requests tile.
Further, when the tile shown is kept in local cache by buffer memory unit 400, if the capacity of local cache is not enough, then buffer memory unit 400 removes least recently used tile from local cache.
Further, the loading unit 300 of the present embodiment, is suitable for judging described preload tile and target tile whether in local cache, if being judged as YES, from local cache, then read preload tile and target tile, if being judged as NO, then from downloaded preload tile and target tile. By the tile preferentially obtained in buffer memory, it is possible to improve loading velocity.
Fig. 5 shows the schematic diagram of the electronic map client side realized according to the present invention. By the method for the device of control electronics map translation and control electronics map translation, electronic map client side is when carrying out translation according to the instruction of user, and it is little that electronic map window exists blank probability.
It should be understood that
Intrinsic not relevant to any certain computer, virtual system or other equipment with display at this algorithm provided. Various general-purpose system can also with use based on together with this teaching. According to description above, it is to construct the structure required by this type systematic is apparent. In addition, the present invention is not also for any certain programmed language. It should be appreciated that various programming language can be utilized to realize the content of the present invention described here, and the description done by language-specific above is the preferred forms in order to disclose the present invention.
In specification sheets mentioned herein, describe a large amount of detail. However, it is understood that embodiments of the invention can be put into practice when not having these details. In some instances, it is not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, it is to be understood that, one or more in order to what simplify the disclosure and help to understand in each inventive aspect, above to, in the description of the exemplary embodiment of the present invention, each feature of the present invention is grouped together in single embodiment, figure or the description to it sometimes. But, the method for the disclosure should be construed to the following intention of reflection: namely the present invention for required protection requires feature more more than the feature clearly recorded in each claim. More properly saying, as reflected in claim book below, inventive aspect is all features less than disclosed single embodiment above. Therefore, the claim book following embodiment is thus incorporated to this embodiment clearly, and wherein each claim itself is as the independent embodiment of the present invention.
Those skilled in the art it can be appreciated that the module in the equipment in embodiment can be carried out adaptively change and they are arranged in one or more equipment different from this embodiment. Module in embodiment or unit or assembly can be combined into a module or unit or assembly, and multiple submodule block or subelement or subgroup part can be put them in addition. Except at least some in such feature and/or process or unit mutually repels, it is possible to adopt any combination all processes or the unit of all features disclosed in this specification sheets (comprising adjoint claim, summary and accompanying drawing) and so disclosed any method or equipment to be combined. Unless expressly stated otherwise, each feature disclosed in this specification sheets (comprising adjoint claim, summary and accompanying drawing) can by providing alternative features that is identical, equivalent or similar object to replace.
In addition, the technician of this area can understand, although embodiments more described herein comprise in other embodiment some included feature instead of further feature, but the combination of the feature of different embodiment means to be within the scope of the present invention and forms different embodiments. Such as, in the following claims, the one of any of claimed embodiment can use with arbitrary array mode.
Each parts embodiment of the present invention with hardware implementing, or can realize with the software module run on one or more treater, or realizes with their combination. It will be understood by one skilled in the art that the some or all functions that microprocessor or digital signal processor (DSP) can be used in practice to realize the some or all parts in electronics map translation device according to embodiments of the present invention. Such as, the present invention can also be embodied as part or all the equipment for performing method as described herein or device program (computer program and computer program). The program of such the present invention of realization can store on a computer-readable medium, or can have the form of one or more signal. Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or provides with any other form.
Should it is to be noted that above-described embodiment the present invention will be described instead of limits the invention, and those skilled in the art can design alternative embodiment when not departing from the scope of claims. In the claims, it should not any reference symbol construction between bracket is become limitations on claims. Word " comprises " element or step not getting rid of and exist and do not arrange in the claims. Word "a" or "an" before being positioned at element is not got rid of and be there is multiple such element. The present invention can by means of including the hardware of some different elements and realize by means of the computer suitably programmed. In the unit claim listing some devices, some in these devices can be carry out particular embodiment by same hardware branch. Word first, second and third-class use do not represent any order. Can be title by these word explanations.
Claims (14)
1. controlling a device for electronics map translation, this device comprises:
Target tile computing unit, is suitable for finding out, when receiving the instruction of translation map, the multiple target tile needing loaded and displayed;
Preload tile computing unit, is suitable for selecting preload display level based on current display level, finds out preload tile corresponding with described target tile in preload display level;
Loading unit, is suitable for obtaining preload tile and target tile according to priority, loads according to the rank difference between preload display level and current display level and amplifies display preload tile; And after getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position.
2. device according to claim 1, wherein,
Described preload tile computing unit, be suitable for the preload display level selecting rank higher than current display level, map scope represented by described preload tile comprises the map scope represented by described multiple target tile, and the geographic areas corresponding to each preload tile is n times of the geographic areas corresponding to each target tile, n=4k, k is natural number, represents that the rank between preload display level and current display level is poor.
3. device according to claim 1, wherein, this device also comprises:
Buffer memory unit, is suitable for arranging local cache, and is kept in local cache by the tile shown.
4. device according to claim 1, wherein,
Described loading unit, is suitable for the horizontal width of each preload tile and longitudinally highly all amplification m doubly shows, wherein, and m=2k, k is natural number, represents that the rank between preload display level and current display level is poor.
5. device according to claim 3, wherein,
When the tile shown is kept in local cache by described buffer memory unit, if the capacity of local cache is not enough, then described buffer memory unit removes least recently used tile from local cache.
6. device according to claim 3, wherein,
Described loading unit, being suitable for judging described preload tile and target tile whether in local cache, if being judged as YES, then reading preload tile and target tile from local cache, if being judged as NO, then from downloaded preload tile and target tile.
7. device according to the arbitrary item of claim 1-6, wherein,
Described loading unit, is suitable for while loaded targets tile, increases the transparency of the preload tile amplified; When the operation of loaded targets tile completes, remove preload tile and the display-object tile of amplification.
8. controlling a method for electronics map translation, wherein, the method comprises:
When receiving the instruction of translation map, find out the multiple target tile needing loaded and displayed;
Select preload display level based on current display level, find out preload tile corresponding with described target tile in preload display level;
Obtain preload tile and target tile according to priority, load according to the rank difference between preload display level and current display level and amplify display preload tile;
After getting target tile, load and show described target tile to replace the amplification preload tile of correspondence position.
9. method according to claim 8, wherein,
Described preload display level is higher than current display level, map scope represented by described preload tile comprises the map scope represented by described multiple target tile, and the geographic areas corresponding to each preload tile is n times of the geographic areas corresponding to each target tile, n=4k, k is natural number, represents that the rank between preload display level and current display level is poor.
10. method according to claim 8, wherein, described load according to the rank difference between preload display level and current display level and amplifies and show preload tile, comprising:
The horizontal width of each preload tile and longitudinal m that highly all amplifies doubly are shown, wherein, m=2k, k is natural number, represents that the rank between preload display level and current display level is poor.
11. methods according to claim 8, wherein, the method also comprises:
Local cache is set;
The tile shown is kept in local cache.
12. methods according to claim 11, wherein, the method also comprises:
When being kept in local cache by the tile shown, if the capacity of local cache is not enough, then from local cache, remove least recently used tile.
13. methods according to claim 11, wherein, described obtain preload tile and target tile according to priority and specifically comprise:
Judging described preload tile and target tile whether in local cache, if being judged as YES, then from local cache, reading preload tile and target tile, if being judged as NO, then from downloaded preload tile and target tile.
14. methods according to claim 8-13 any claim, wherein, described loading also shows described target tile to replace the preload tile of the amplification of correspondence position, specifically comprises:
While loaded targets tile, increase the transparency of the preload tile amplified; When the operation of loaded targets tile completes, remove preload tile and the display-object tile of amplification.
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| CN201310745517.9A CN103714164B (en) | 2013-12-30 | 2013-12-30 | A kind of device and corresponding method controlling the translation of electronics map |
| CN201610282793.XA CN105975541A (en) | 2013-12-30 | 2013-12-30 | Device and method for controlling translation of electronic map |
| PCT/CN2014/087173 WO2015101070A1 (en) | 2013-12-30 | 2014-09-23 | Device and method for controlling electronic map |
| US15/108,969 US9728167B2 (en) | 2013-12-30 | 2014-09-23 | Device and method for controlling electronic map |
| US15/666,245 US9972285B2 (en) | 2013-12-30 | 2017-08-01 | Device and method for controlling electronic map |
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| CN105975541A (en) * | 2013-12-30 | 2016-09-28 | 北京奇虎科技有限公司 | Device and method for controlling translation of electronic map |
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| WO2015101070A1 (en) * | 2013-12-30 | 2015-07-09 | 北京奇虎科技有限公司 | Device and method for controlling electronic map |
| CN106940730B (en) * | 2017-03-29 | 2019-07-12 | 武大吉奥信息技术有限公司 | A kind of seamless integration method and system of dynamic Service and tile service |
| CN109241207B (en) * | 2017-06-30 | 2021-06-11 | 上海大唐移动通信设备有限公司 | Method and device for displaying data on map |
| DE102017218394A1 (en) * | 2017-10-13 | 2019-04-18 | Robert Bosch Gmbh | Method and system for loading digital geographic map tiles |
| CN111190894A (en) * | 2018-11-15 | 2020-05-22 | 阿里巴巴集团控股有限公司 | Map display method and device, related storage medium and client |
| CN110347769B (en) * | 2019-07-09 | 2021-03-30 | 东方网力科技股份有限公司 | Processing method, device, equipment and storage medium for multi-level map tiles |
| CN115984457A (en) * | 2022-12-02 | 2023-04-18 | 北京百度网讯科技有限公司 | Three-dimensional model display method and device and electronic equipment |
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