CN105022818A - Tile map storing and loading method - Google Patents
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- CN105022818A CN105022818A CN201510415043.0A CN201510415043A CN105022818A CN 105022818 A CN105022818 A CN 105022818A CN 201510415043 A CN201510415043 A CN 201510415043A CN 105022818 A CN105022818 A CN 105022818A
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The invention provides a tile map storing and loading method. The tile map storing method comprises the following steps: judging an operation condition: if the operation condition is not qualified, ending, and if the operation condition is qualified, continuing; segmenting a map into tile maps; storing the tile maps by layers; reducing the map; and returning to the step of judging the operation condition. The invention also provides a tile map loading method, which comprises the following steps: storing the map according to the above method; inversely looking up the tiles layer by layer in the stored tile map; and loading the found tiles layer by layer. The tile map storing and loading method can quickly display a fuzzy map, is convenient for users to realize quick understanding and analysis, instantly changes a view, shortens loading time and quickens a browsing speed.
Description
Technical field
The present invention relates to the picture such as electronic chart, super large scene of game display field, particularly relate to electronic chart, super large scene of game tile figure stores and loading method.
Background technology
Relate in the application system of the picture such as electronic chart, super large scene of game display, common way is, at server end, the pictures (being commonly referred to large figure) such as whole electronic chart, super large scene of game are divided into some pieces of formed objects, and each block is referred to as tile figure.Client equipment such as () such as PC, mobile phone, iPad is to carrying screen message during server request map datum, need the area information etc. of display.Server goes out client according to these information analysis needs the tile figure of display number, and loads these tiles figure and responsively send to client, and client, by after the tile figure that receives, is assembled into a width electronic chart rear line and shows.
Current techniques adopts the mode of directly display to the loading of tile, is also directly stored in the storer of server end by each tile figure, and server, according to request, calculates current tile figure position, directly loads these tiles and shows.But the process loaded can be subject to the impact of various factors and cause slowly, such as network speed is not good, and server OS travelling speed is slow, and for the 3D map become more and more popular now, because data volume is large, above loading velocity slowly situation is more and more serious.
Use existing tile figure disposal route, under loading velocity slowly situation, the situation of presenting to user is: (open whenever changing the visual field first, move up and down, Scalable), all need to load to the tile do not loaded.So before new tile loaded also display, user can only see the incoherent content such as blank out or other wait marks, reduces Consumer's Experience.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of tile figure to store and loading method, and for solving, prior art loading velocity is slow, the problem of poor user experience.
For achieving the above object and other relevant objects, the invention provides a kind of tile figure and store and loading method, comprise the step judging service condition, if service condition does not possess, then terminate; If service condition possesses, then continue; Picture segmentation is become the step of tile figure; By the step of tile figure Bedding storage; Reduce the step of picture; Return the step judging service condition.
The present invention also provides a kind of tile figure loading method, comprises the step of picture as stated above; Successively reverse step of searching tile in the tile figure stored; The step of the tile that loaded floor by floor finds.
As mentioned above, tile figure of the present invention stores and loading method, has following beneficial effect: normally targetedly, namely user only needs the details scheming greatly certain local to the demand of user, instead of the details in all places of large figure.So can only provide Fast Fuzzy effect for the tile not being ownership goal, it is not that oneself target just can continue to change the visual field, until target place that user tells.Even if user wants the full content checking large figure, the fuzzy graph of quick display can the understanding of participating user at once and analysis, if user has understood enough information by fuzzy graph, then can continue at once to change the visual field, save the time of loading, accelerate the speed browsed.
Accompanying drawing explanation
Fig. 1 is pending original image;
Fig. 2 is the process flow diagram of tile figure storage means of the present invention;
Fig. 3-6 is respectively tile figure in 1-4 layer storage space;
Fig. 7-11 is respectively loading 4-1 layer process schematic.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Below in conjunction with embodiment and accompanying drawing, inventive concept is explained.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
First Fig. 1 is consulted, Fig. 1 is a figure greatly, if its size (in units of pixel) is wide W=2560px, high H=1920px, be not suitable for loading, if this figure is directly shown to client, one to carry out image data amount huge, two carry out user does not in fact often need to show whole large figure, but is concerned about certain local wherein.Therefore need this large figure to be divided into tile figure, send to user by block.Illustrate how to adopt tile figure of the present invention to split storage means and loading method, the large figure in Fig. 1 to be carried out segmentation and stores and show client user below in conjunction with embodiment.
Figure 2 shows that the present invention stores a kind of embodiment of tile figure, wherein step S1 represents the step judging service condition, if service condition possesses, then continues down to perform, otherwise directly terminates.In this example, service condition arranges " picture reaches normal size ", if namely picture reaches normal size, then terminates; Otherwise continue.So-called normal size, namely picture is applicable to the size of loading, and it is by conditionalities such as hardware, can be different, but is relatively-stationary concerning same system.The picture normal size (in units of pixel) being applicable in this example loading is defined as wide W
0=320px, high H
0=240px.Picture is greater than this normal size, is called " being not suitable for loading "; Dimension of picture is less than or equal to this normal size, is called " being applicable to loading ".Large figure in Fig. 1 has obviously exceeded normal size, is not suitable for loading, and therefore needs to enter step S2.
Step S2 represents to be split picture.Adopt cross patterning method that the large figure in Fig. 1 is divided into tile figure in this example, cross split plot design meaning is divided into quarter by picture.If the wide and height of large figure be respectively W, H (unit can be pixel, centimetre or millimeter etc.), then the mathematical expression of cross patterning method process is:
After the cutting of n level, tile is of a size of
Wherein, n is the progression of cutting.To each group W
n, H
nif " be not suitable for load ", so needs to carry out next stage cutting, namely cross cutting is continued again to each tile, until after certain grade of cutting completes, gained tile dimensions reaches normal size.Cutting progression is now confirmed as always cutting progression N, and the final size W of tile
n, H
n.In this example, large figure is after 3 grades of cuttings, and wide 320px, high 240px, be applicable to loading.So determine that former figure always cuts progression N=3, final tile size is wide W
n=320px, high H
n=240px.
Step S3 represents the tile figure after storing segmentation.The present invention logically adopts multilayered memory structure, and the number of plies of storage organization can be determined according to cutting progression.In this example, the large figure of Fig. 1 has been carried out 3 grades of segmentations, and the result of each segmentation is stored in different layers, and add that therefore this example adopts 3 layers of storage organization, the tile figure after Fig. 1 is divided is stored in the 4th layer of storage space.Because Fig. 1 have employed the segmentation of cross patterning method, a kind of mode intuitively storing the rear tile figure of cutting adopts two-dimensional matrix: keep placement of tiles constant, each tile is numbered, the numbering of each tile is with (a, b) represent, wherein a represents the numbering (line number is from 0) that this tile is expert at, and b represents the numbering (column number is from 0) of this tile column.Result after numbering as shown in Figure 3.
Step S4 represents and reduces picture, also reduces by a certain percentage by the large figure shown in Fig. 1.Concrete ratio can be determined according to actual needs flexibly.In this example, the multiple r=2 reduced, also reduces half by large figure.After reducing, again get back to step S11, judge whether the picture reduced reaches standard size.In this example, the large figure of Fig. 1, through first-stage reduction, is of a size of wide W=1280px, and high H=960px, is still greater than standard size, therefore still needs to perform step S2 and carries out splitting (second time segmentation).But after these needs perform two-stage segmentation, each tile just can reach normal size, therefore this cutting progression N '=2.The result of following needs to second time segmentation stores.Still adopt two-dimensional matrix, segmentation result is numbered, as shown in Figure 4, then stored in the 2nd layer of storage space.Introducing in detailed process and step S3 is similar, repeats no more.
Again perform after reducing, splitting, result is stored in the 1st layer.Final storage organization as shown in Figure 5.After now reducing, size reaches normal size again, then be directly stored in top (the 4th layer) by figure after reducing, and terminates the stores processor process of former figure.
It should be noted that, because the size putting into practice Central Plains figure is not likely the integral multiple of tile, at this time for ease of subsequent treatment, preferably can carry out benefit limit to former figure surrounding.A kind of embodiment mending limit is as follows: set the figure after mending limit wide as PW, height is PH, can calculate mend limit numerical value according to following formula:
PW＝W
0*math.floor(log
f(W/W
0))
PH=H
0* math.floor (log
f(H/H
0)) formula (3)
Wherein the meaning of math.floor (x) is no more than the maximum integer of x.F is the multiplying power reduced whole figure in the later stage, and f value can select arbitrarily an integer according to actual conditions.Mend the color that limit can adopt any needs, be preferably Transparent color; Mend limit and only by each one side of length and width, also evenly can mend limit in surrounding.Such as, in this example, if the former figure of Fig. 1 is of a size of W=2400px, high H=1800px, for ease of computer calculate, f in formula (3) gets 2, then can calculate the figure after mending limit according to formula (3) and be of a size of: can obtain PW=2560px, PH=1920px, now perform the operation of step S1 to S4 again, repeat no more.
The method that the present invention loads tile figure is introduced below based on above-mentioned event memory.The process loaded is divided into reverse searching and two steps that Load Image.Reverse referring to when searching is determined to need to call those tiles according to the coordinate at rectangle arbitrary in picture (screen of rectangle representative of consumer and the visual field) four angles, and this is one and finds the process of tile numbering according to Pictures location.
For planimetric rectangular coordinates set up by the picture of kth layer, the upper left corner is true origin, is respectively x-axis positive dirction and y-axis positive dirction to the right and downwards, if the upper left corner of arbitrary rectangle and the pixel coordinate in the lower right corner are respectively (x
1, y
1), (x
2, y
2).As shown in Figure 7.There is the tile of common factor to number with rectangle to be set to (A, B), and set the minimum value of A as A
min, maximal value is A
max, the minimum value of B is B
min, maximal value is B
max, then:
Wherein the meaning of Math.floor (x) is no more than the maximum integer of x.So, have the tile of common factor to be numbered the full combination of all probable values of A, B with rectangle.
Loading can adopt the form of queue to operate, and load queue such as to refer at the putting in order of many tiles to be shown.In this example, the queueing discipline of load queue is: regardless of the sequencing entering queue, and all tiles reverse by the number of plies, and namely the tile of higher level comes queue front portion, and the tile of lower level comes rear of queue.Even after add the tile of queue, as long as belong to high-rise, will come before low layer.To the tile of same layer, number order arrangement first by row, then press the arrangement of column number order.In this example, tile figure is divided into 4 layers of storage, first can load the superiors during loading, is also the tile of the 4th layer, then loads the tile of the 2nd layer, load successively, until the last tile loading the 1st layer.And the tile on upper strata can be hidden when lower floor's tile all loads success, namely hide fuzzy graph, show more clear figure.The effect of the vision of user is more clear from fuzzy change, last to the most clear.Every layer before loading, all needs through above-mentioned reverse search procedure, determines specifically need in this layer to load which tile.The overall process loading tile is introduced in detail below in conjunction with example.
Suppose that the screen size of client is wide 620px, high 370px, initial visual field rectangle top left co-ordinate is (480,1136), and lower right corner coordinate is (1100,1506), as shown in Figure 6.
First load the 4th layer of (most top layer) tile, i.e. k=4, calculate A according to formula (2)
min=0, A
max=0, B
min=0, B
max=0, so the tile in the user visual field is numbered (0,0).Be actually and load whole top layer picture, and by it amplification r
k-1=8 times of displays, as Fig. 7.Now user sees the fuzzyyest picture.
Then load the 3rd layer of tile, i.e. k=3, calculate according to formula (2), A
min=0, A
max=0, B
min=1, B
max=1, so have the tile of common factor to be numbered (0,1) with the user visual field.Therefore the tile of the 3rd layer upper (0,1) numbering is loaded, and by it amplification r
k-1=4 times of displays, hide the 4th layer of picture, as shown in Figure 8 simultaneously.Now user is it is seen that secondary fuzzy picture.Hiding here, can by being set to opaque by the picture of new one deck, and be placed on most top layer and realize, and hereafter if no special instructions, the implication of certain layer hiding is identical all therewith.
Following loading the 2nd layer of tile, i.e. k=2, calculate according to formula (2), at the second layer, namely during k=2, can obtain A as calculated
min=0, A
max=1, B
min=2, B
max=3, so have the tile of common factor to be numbered (0,2) (1,2) with the user visual field, (0,3) (1,3).Therefore load the 2nd layer upper (0,2), (1,2), (0,3), the tile that (1,3) number, and they are amplified r
k-1=2 times of displays, hide the 3rd layer of picture simultaneously.As shown in Figure 9, now user sees more clear picture.
Finally load the 1st layer of (bottom) tile, k=3, calculates A according to formula (2)
min=1, A
max=3, B
min=4, B
max=6, so have one deck tile of common factor to be numbered (Isosorbide-5-Nitrae) (2,4) (3,4) with the user visual field, (1,5) (2,5) (3,5), (1,6) (2,6) (3,6).Therefore the 1st layer of upper (Isosorbide-5-Nitrae) (2,4) (3 are loaded, 4), (1,5) (2,5) (3,5), (1,6) (2,6) (3,6) number tile, need not amplify, direct display, hides the 2nd layer of picture simultaneously.As shown in Figure 10, now user sees picture (when the bottom is loaded, meaning that former figure loads) the most clearly, and so far whole loading procedure is complete.
When user drag screen cause the visual field to change time, the such as visual field moves to top left co-ordinate to upper left side be (202,614), lower right corner coordinate is the position of (822,984), then still successively calculate by said sequence, load, hide tile.Note: the tile loaded in the last visual field this without the need to reloading, therefore the 3rd layer needs the new tile loaded to be (0,0); The second layer need the tile loaded be (0,1) (1,1); Third layer need the tile loaded be (0,2) (1,2) (2,2) (0,3) (1,3) (2,3).
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Such as: in this example, carry out the method for mending limit to picture, the mode of supplementing in reality can change other colors into by transparent, or uses uneven benefit limit, does not even carry out the process of mending limit; In this example, process is reduced to picture and all adopt same reduction magnification r, and by layer circular treatment, in practice, the multiplying power of each contract drawing can be different, also need not process in the circulating cycle, can concentrate and carry out disposable process; Carry out two-dimentional numerical system to tile in this example for another example, reality also can adopt one dimension numerical system, or other method for numbering serial; According to picture size in this example, dynamically determine that the sum of series tile split stores the number of plies, also the static number of plies may be adopted in practice, such as change the condition of the judgement of step S3 in this example, adopt counter, often carrying out changing start-stop counter once taking turns minification, if counter reaches certain static number, then terminating; For another example, can intended target layer in this example, and can Offered target layer in practice, be loaded with the picture of whole number of plies; About the tile how showing load queue, the variation of loading sequence can be produced according to different transmission algorithm distinct device, as multithreading shows simultaneously, instead of put in order display according to load queue of the present invention completely.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (8)
1. a tile figure storage means, is characterized in that, comprising:
Judge the step of service condition, if service condition does not possess, then terminate; If service condition possesses, then continue;
Picture segmentation is become the step of tile figure;
By the step of described tile figure Bedding storage;
Reduce the step of described picture;
Return the step of described judgement service condition.
2. tile figure storage means according to claim 1, is characterized in that, described service condition is that described picture reaches normal size, if picture reaches normal size, then terminates; If described picture does not reach normal size, then continue to perform.
3. tile figure storage means according to claim 1, is characterized in that, is describedly become by picture segmentation in the step of tile figure, adopts cross split plot design.
4. tile figure storage means according to claim 1, is characterized in that, described by the step of described tile figure Bedding storage, adopts two-dimensional matrix to store described tile figure.
5. a tile figure loading method, is characterized in that, comprising:
By the step of method picture described in any one in claim 1-4;
Successively reverse step of searching tile in the tile figure of described storage;
The step of the tile found described in loaded floor by floor.
6. tile figure loading method according to claim 5, is characterized in that, described in the tile figure of described storage successively reverse step of searching tile comprise:
A. the step of client visual field coordinate is determined;
B. the step of the tile set that will show in the superiors' storage space is searched according to the coordinate in the described client visual field;
C. the step of the tile set that will show in described the superiors storage space is loaded;
D. the step of the tile set that will show in lower one deck storage space is searched according to the coordinate in the described client visual field;
E. the step that the tile in last layer storage space is also hidden in the tile set that will show in described lower one deck storage space is loaded;
F. step B to E is repeated until loaded the step of the tile set that will show in orlop storage space.
7. in tile figure loading method according to claim 6, it is characterized in that, the coordinate in the described client visual field comprises visual field top left co-ordinate (x
1, y
1) and lower right corner coordinate (x
2, y
2); Described step of searching the tile set that will show comprises:
Minimum abscissa value Amin, maximum abscissa value Amax in the tile set that will show described in calculating respectively, minimum ordinate value Bmin, the step of maximum ordinate value Bmax; Computing method are:
Wherein Math.floor (x) represents the maximum integer being no more than x;
All horizontal ordinates are in interval [A
min, A
max], ordinate is in interval [B
min, B
max] in all tiles as the step of the tile set that will show.
8. tile figure storage means according to claim 1, is characterized in that, described in reduce between the step of described picture and the described step returning described judgement service condition and also comprise the step changing counter.
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| CN201510415043.0A CN105022818A (en) | 2015-07-08 | 2015-07-08 | Tile map storing and loading method |
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|---|---|---|---|
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| CN105550301A (en) * | 2015-12-14 | 2016-05-04 | 河海大学 | High-definition picture cutting and displaying method |
| CN106961622A (en) * | 2017-03-30 | 2017-07-18 | 联想(北京)有限公司 | A kind of display processing method and device |
| CN108647336A (en) * | 2018-05-14 | 2018-10-12 | 江西理工大学 | A method of utilizing catastrophe-scale and class tile technical finesse polar plot |
| CN108664619A (en) * | 2018-05-14 | 2018-10-16 | 江西理工大学 | The magnanimity line of one type tile technology draws the storage of topographic map basis and dispatching method |
| CN109829090A (en) * | 2018-11-30 | 2019-05-31 | 青岛禧泰房地产数据有限公司 | A kind of data display method using more maps |
| CN110187924A (en) * | 2019-05-29 | 2019-08-30 | 吉林亿联银行股份有限公司 | Picture loading method and device |
| CN111785353A (en) * | 2020-06-29 | 2020-10-16 | 平安国际智慧城市科技股份有限公司 | Digital pathological section processing method and device, storage medium and electronic equipment |
| CN117390057A (en) * | 2023-12-11 | 2024-01-12 | 成都智达万应科技有限公司 | Map data query method and system |
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| CN105550301A (en) * | 2015-12-14 | 2016-05-04 | 河海大学 | High-definition picture cutting and displaying method |
| CN105550301B (en) * | 2015-12-14 | 2019-10-01 | 河海大学 | A kind of cutting of high definition picture and methods of exhibiting |
| CN106961622A (en) * | 2017-03-30 | 2017-07-18 | 联想(北京)有限公司 | A kind of display processing method and device |
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| CN108647336A (en) * | 2018-05-14 | 2018-10-12 | 江西理工大学 | A method of utilizing catastrophe-scale and class tile technical finesse polar plot |
| CN108664619A (en) * | 2018-05-14 | 2018-10-16 | 江西理工大学 | The magnanimity line of one type tile technology draws the storage of topographic map basis and dispatching method |
| CN108647336B (en) * | 2018-05-14 | 2020-06-19 | 江西理工大学 | Method for processing vector diagram by using key scale and tile-like technology |
| CN109829090A (en) * | 2018-11-30 | 2019-05-31 | 青岛禧泰房地产数据有限公司 | A kind of data display method using more maps |
| CN110187924A (en) * | 2019-05-29 | 2019-08-30 | 吉林亿联银行股份有限公司 | Picture loading method and device |
| CN111785353A (en) * | 2020-06-29 | 2020-10-16 | 平安国际智慧城市科技股份有限公司 | Digital pathological section processing method and device, storage medium and electronic equipment |
| CN117390057A (en) * | 2023-12-11 | 2024-01-12 | 成都智达万应科技有限公司 | Map data query method and system |
| CN117390057B (en) * | 2023-12-11 | 2024-03-19 | 成都智达万应科技有限公司 | Map data query method and system |
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