CN104657367A - Network map local update method and network map local update device - Google Patents
Network map local update method and network map local update device Download PDFInfo
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- CN104657367A CN104657367A CN201310581243.4A CN201310581243A CN104657367A CN 104657367 A CN104657367 A CN 104657367A CN 201310581243 A CN201310581243 A CN 201310581243A CN 104657367 A CN104657367 A CN 104657367A
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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- 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
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Abstract
The invention provides a network map local update method and a network map local update. The method comprises a network map update technology. The method comprising the steps of: a data area to change the box to cut a predetermined size was cut, get changed after cutting area; for the change area to a predetermined size of the detection frame is detected, the detected there change data to the change area of the recording sub-region, sub-region to form a set of change; change of the sub-region of the change in the set to a predetermined size of the sub-region of the scanning window rendering give new tiles; output each sub-region covered by the change in the number of tiles; according to the number of tiles, the service end of the same number of tiles to delete, and copy the newly generated tile to the server. The method solves the existing network map update program data volume, time-consuming production problems and improves the online update speed.
Description
Technical field
The present invention relates to network map renewal technology field, refer to a kind of network map local updating method and device especially.
Background technology
Along with the development of science and technology, present people's trip has not re-used the paper map of fragile, easy loss, multiselect conveniently network map.
Existing network map many employings tile technology realizes, and tile map pyramid model is a kind of multiresolution hierarchical model, and from the pyramidal bottom of tile to top layer, resolution is more and more lower, but the geographic range represented is constant.
And for tile technology, the many employings of its update scheme, according to data variation Regional Gravity new production tile, upgrade.But by this scheme, if the data object producing change is the geometric objects such as line, face, its spatial dimension covered is extensive, and the tile regenerated is too many, and renewal speed will be slowly.Meanwhile, at data variation boundary, word, symbol etc. may be crossed on two tiles, if only upgrade side tile, will cause the phenomenon of loss of data.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of network map local updating method and device, realize the regional changes for data, only produce local tile, avoid after every secondary data changes and all carry out all or tile renewal on a large scale, the problem that renewal speed is slow.
For achieving the above object, embodiments of the invention provide a kind of network map local updating method, comprise the following steps:
Cutting with the cutting frame that presets size changing data area, obtaining the change region after cutting;
Described change region is detected with the detection block that presets size, having the regional record changing data for changing subregion by what detect, forming one and changing subregion set;
Described change subregion in the set of described change subregion is carried out scanning played up with the form of playing up that presets size, obtains new tile;
Export each described change subregion the numbering of chlamydate tile;
According to the numbering of described tile, the tile of identical for service end numbering is deleted, and newly-generated tile is copied to server.
Wherein, described change region is detected with the detection block that presets size, having the regional record changing data for changing subregion by what detect, forming a step changing subregion set and specifically comprising:
In described change region, preset the detection block of size from fixing an initial point with one, from left to right, all standing Scanning Detction from top to bottom;
The regional record of described change data is had for changing subregion by what detect;
The whole described change subregion obtained is processed, forms one and change subregion set.
Wherein, the described change subregion in the set of described change subregion is carried out to scanning play up with the form of playing up that presets size, and the step obtaining new tile specifically comprises:
Described in each in the set of described change subregion, change subregion, the form of playing up presetting size with scans, and plays up the data in form described in acquisition;
The described data played up in form are played up, obtains new tile.
Wherein, described in each in the set of described change subregion, change subregion, the form of playing up presetting size with scans, and the concrete steps playing up the data in form described in acquisition comprise:
Subregion is changed described in each in the set of described change subregion, the form of playing up presetting size with one carries out data scanning, when data are Point element, to play up described in described Point element drops on completely in form or described in play up on the left margin of form, coboundary time obtain; When data are Linear element or area pattern, expanded scope obtains; When data for word and position cross over described in play up form time, obtain to playing up in form described in completely falling into according to word length, width deviations; When data for point symbol and position cross over described in play up form time, be offset to play up in form described in falling into completely and obtain.
Wherein, described expanded scope, the width of the expansion space length size corresponding to the width of Linear element or area pattern sideline symbol.
Wherein, described cutting frame, described detection block and described in play up form size be the integral multiple of the size of described tile; Wherein, the size of described cutting frame and described detection block also for described in play up the integral multiple of the size of form.
Wherein, the size of described detection block is identical with the size of described change subregion.
Wherein, described change data comprise: the key element of deleted key element, newly-increased key element, change.
Wherein, playing up form scanning described in is not multiple scanning.
Embodiments of the invention additionally provide a kind of network map local updating device, comprising:
Cutting module, for cutting with the cutting frame that presets size changing data area, obtains the change region after cutting;
Detection module, for detecting with the detection block that presets size described change region, having the regional record changing data for changing subregion by what detect, forming one and changing subregion set;
Production module, for carrying out scanning to the described change subregion in the set of described change subregion play up with the form of playing up that presets size, obtains new tile;
Numbering module, for exporting the numbering of the tile that each described change subregion covers;
Update module, for the numbering according to described tile, deletes the tile of identical for service end numbering, and newly-generated tile is copied to server.
Wherein, described detection module comprises:
Detecting unit, in described change region, presets the detection block of size from fixing an initial point with one, from left to right, all standing Scanning Detction from top to bottom;
Record cell, for having the regional record of described change data for changing subregion by what detect;
Processing unit, for being processed by the whole described change subregion obtained, forming one and changing subregion set.
Wherein, described production module comprises:
Data capture unit, for changing subregion described in each in the set of described change subregion, the form of playing up presetting size with scans, and plays up the data in form described in acquisition;
Productive unit, for playing up the described data played up in form, obtains new tile.
Wherein, data capture unit comprises:
Data acquisition subelement, for changing subregion described in each in the set of described change subregion, the form of playing up presetting size with one carries out data scanning, when data are Point element, to play up described in described Point element drops on completely in form or described in play up on the left margin of form, coboundary time obtain; When data are Linear element or area pattern, expanded scope obtains; When data for word and position cross over described in play up form time, obtain to playing up in form described in completely falling into according to word length, width deviations; When data for point symbol and position cross over described in play up form time, be offset to play up in form described in falling into completely and obtain.
The beneficial effect of technique scheme of the present invention is as follows:
The network map local updating method of the embodiment of the present invention, is first cut change data area with a cutting frame by step 11, obtains the change region after cutting.Thereafter, step 12 detects change region with a detection block, having the regional record changing data for changing subregion, forming what detecting one and changing subregion set.And step 13 is played up form with one again and carried out scanning to the change subregion changed in subregion set and play up, obtain new tile.Then step 14 exports the numbering of the tile that each described change subregion covers.The tile of identical for service end numbering, according to the numbering of tile, is deleted, and newly-generated tile is copied to server, complete the local updating of network map by final step 15.This method only changes subregion to the region of changing data and carries out tile production, renewal, reduces the tile scope needing to upgrade, improves renewal speed.
The network map local updating method of the embodiment of the present invention, when playing up form and obtaining data, subregion is changed to each change in subregion set, the form of playing up presetting size with one carries out data scanning, when data are Point element, Point element drop on completely play up in form or play up form left margin, on coboundary time obtain; When data are Linear element or area pattern, expanded scope obtains; When data are word and form is played up in position leap, obtain to completely falling into play up in form according to word length, width deviations; When data be point symbol and position cross over play up form time, be offset to fall into play up in form completely and obtain, avoid the symbol upgrading rear boundary to lose by the method, overlapping.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the network map local updating method of the embodiment of the present invention;
Fig. 2 is the cutting schematic diagram of cutting frame;
Fig. 3 is the scanning schematic diagram playing up form;
Fig. 4 is that word and point symbol are crossed over and played up form schematic diagram;
Fig. 5 falls into after word and point symbol offset to play up form schematic diagram;
Fig. 6 is the schematic diagram of the network map local updating device of the embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to the existing tile data object that more new production changes is the geometric objects such as line, face, its spatial dimension covered is extensive, the tile regenerated is too many, renewal speed will be slow problem, a kind of network map local updating method is provided, for the regional changes of data, only produce local tile, improve renewal speed.
As shown in Figure 1, the network map local updating method of the embodiment of the present invention, comprises the following steps:
Step 11, cutting with the cutting frame that presets size changing data area, obtaining the change region after cutting;
Step 12, detects with the detection block that presets size described change region, having the regional record changing data for changing subregion, forming what detecting one and changing subregion set;
Step 13, carries out scanning to the described change subregion in the set of described change subregion play up with the form of playing up that presets size, obtain new tile;
Step 14, exports the numbering of the tile that each described change subregion covers;
Step 15, according to the numbering of described tile, deletes the tile of identical for service end numbering, and newly-generated tile is copied to server.
So, the method only changes subregion to the region of changing data and carries out tile production, renewal, reduces the tile scope needing to upgrade, improves renewal speed.
The network map local updating method of the embodiment of the present invention, is first cut change data area with a cutting frame by step 11, obtains the change region after cutting.As shown in Figure 2, cutting frame 21 cuts changing data area, and wherein, change data comprise: deleted key element 22, newly-increased key element 23, the key element (before changing key element 24 and the rear key element 25 of change) changed.
Thereafter, step 12 detects change region with a detection block, having the regional record changing data for changing subregion, forming what detecting one and changing subregion set.The network map local updating method of another embodiment of the present invention, step 12 specifically comprises:
Step 121, in described change region, presets the detection block of size from fixing an initial point with one, from left to right, all standing Scanning Detction from top to bottom;
Step 122, has the regional record of described change data for changing subregion by what detect;
Step 123, processes the whole described change subregion obtained, and forms one and changes subregion set.
Complete above-mentioned steps, obtain the change subregion changing data, form one and change subregion set, produce for later tile and prepare, avoid omitting the data upgraded.
And step 13 is played up form with one again and carried out scanning to the change subregion changed in subregion set and play up, obtain new tile.The network map local updating method of another embodiment of the present invention, step 13 specifically comprises:
Step 131, changes subregion described in each in the set of described change subregion, and the form of playing up presetting size with scans, and plays up the data in form described in acquisition;
Step 132, plays up the described data played up in form, obtains new tile.
As shown in Figure 3, step 131 gets change data by playing up form 31 in the scanning of change subregion 32.Region minimum in figure is tile 33.Subsequently, step 132 is just carried out playing up obtain new tile according to the data obtained.
As everyone knows, existing update scheme, at the boundary of Data Update, may cross on two tiles for word, symbol etc., only upgrades the side be in more new range, thus causes the phenomenon of loss of data.Therefore, the network map local updating method of another embodiment of the present invention, on the basis of above-described embodiment, wherein, step 131 is specially:
Step 1311, subregion is changed described in each in the set of described change subregion, the form of playing up presetting size with one carries out data scanning, when data are Point element, to play up described in described Point element drops on completely in form or described in play up on the left margin of form, coboundary time obtain; When data are Linear element or area pattern, expanded scope obtains; When data for word and position cross over described in play up form time, obtain to playing up in form described in completely falling into according to word length, width deviations; When data for point symbol and position cross over described in play up form time, be offset to play up in form described in falling into completely and obtain.
Falling within except the data played up in form completely except obtaining, obtaining for being positioned at left margin, the Point element on coboundary of playing up form; For Linear element or area pattern, expanded scope obtains; Play up the word of form for crossing over, point symbol is offset to fall into play up in form completely and obtains.The problems such as the symbol upgrading rear boundary is lost, overlap can be avoided.As shown in Figure 4, the word 41(People's Government in figure) and a point symbol 42 span and play up form 31, just need it first to make migration processing.As shown in Figure 5, the word 41(People's Government) and a point symbol 42 skew after fall within and play up in form 31, then to obtain.
Pass through above-mentioned steps, in the playing up of tile, production run, in units of basic tile size, the scope using n*n tile corresponding is played up as form, ensure in render process that the object in form is all drawn, and be only plotted in form, do not cross form border or draw outside window.
Then step 14 exports the numbering of the tile that each described change subregion covers; The tile of identical for service end numbering, according to the numbering of tile, is deleted, and is copied newly-generated tile to server by final step 15.
So far the local updating of network map is completed.
In the network local update method of the embodiment of the present invention, in units of the size of basic tile, therefore, cut described in the method frame, described detection block and described in play up form size be the integral multiple of the size of described tile, can not cross over tile, be the relation comprised completely with tile.Wherein, the size of described cutting frame and described detection block also for described in play up the integral multiple of the size of form, ensure that tile among a small circle upgrades, improve renewal speed.
Wherein, the size of described detection block is identical with the size of described change subregion.
In the network local update method of the embodiment of the present invention, step 1311, obtain more new data time, expanded scope has a definite limitation, unlimited expansion can not be done, therefore, described expanded scope, the width of the expansion space length size corresponding to the width of Linear element or area pattern sideline symbol.Like this, when Linear element or area pattern sideline are positioned at and play up form border, just can be acquired, there will not be the phenomenon of loss of data.
Certainly, in the network local update method of the embodiment of the present invention, described in play up form scanning for not multiple scanning, ensure that the data of acquisition do not repeat, decrease the probability of makeing mistakes.
In order to solve the problem, embodiments of the invention additionally provide a kind of network map local updating device, comprising:
Cutting module, for cutting with the cutting frame that presets size changing data area, obtains the change region after cutting;
Detection module, for detecting with the detection block that presets size described change region, having the regional record changing data for changing subregion by what detect, forming one and changing subregion set;
Production module, for carrying out scanning to the described change subregion in the set of described change subregion play up with the form of playing up that presets size, obtains new tile;
Numbering module, for exporting the numbering of the tile that each described change subregion covers;
Update module, for the numbering according to described tile, deletes the tile of identical for service end numbering, and newly-generated tile is copied to server.
Wherein, described detection module comprises:
Detecting unit, in described change region, presets the detection block of size from fixing an initial point with one, from left to right, all standing Scanning Detction from top to bottom;
Record cell, for having the regional record of described change data for changing subregion by what detect;
Processing unit, for being processed by the whole described change subregion obtained, forming one and changing subregion set.
Wherein, described production module comprises:
Data capture unit, for changing subregion described in each in the set of described change subregion, the form of playing up presetting size with scans, and plays up the data in form described in acquisition;
Productive unit, for playing up the described data played up in form, obtains new tile.
Wherein, data capture unit comprises:
Data acquisition subelement, for changing subregion described in each in the set of described change subregion, the form of playing up presetting size with one carries out data scanning, when data are Point element, to play up described in described Point element drops on completely in form or described in play up on the left margin of form, coboundary time obtain; When data are Linear element or area pattern, expanded scope obtains; When data for word and position cross over described in play up form time, obtain to playing up in form described in completely falling into according to word length, width deviations; When data for point symbol and position cross over described in play up form time, be offset to play up in form described in falling into completely and obtain.
It should be noted that this device is the device applying above-mentioned network map local updating method, the implementation of above-mentioned network map local updating embodiment of the method is applicable to, in this device, also can reach identical technique effect.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a network map local updating method, is characterized in that, comprises the following steps:
Cutting with the cutting frame that presets size changing data area, obtaining the change region after cutting;
Described change region is detected with the detection block that presets size, having the regional record changing data for changing subregion by what detect, forming one and changing subregion set;
Described change subregion in the set of described change subregion is carried out scanning played up with the form of playing up that presets size, obtains new tile;
Export the numbering of the tile that each described change subregion covers;
According to the numbering of described tile, the tile of identical for service end numbering is deleted, and newly-generated tile is copied to server.
2. network map local updating method according to claim 1, it is characterized in that, described change region is detected with the detection block that presets size, having the regional record changing data for changing subregion by what detect, forming a step changing subregion set and specifically comprising:
In described change region, preset the detection block of size from fixing an initial point with one, from left to right, all standing Scanning Detction from top to bottom;
The regional record of described change data is had for changing subregion by what detect;
The whole described change subregion obtained is processed, forms one and change subregion set.
3. network map local updating method according to claim 1, is characterized in that, the described change subregion in the set of described change subregion is carried out to scanning play up with the form of playing up that presets size, and the step obtaining new tile specifically comprises:
Described in each in the set of described change subregion, change subregion, the form of playing up presetting size with scans, and plays up the data in form described in acquisition;
The described data played up in form are played up, obtains new tile.
4. network map local updating method according to claim 3, it is characterized in that, described in each in the set of described change subregion, change subregion, the form of playing up presetting size with scans, and the concrete steps playing up the data in form described in acquisition comprise:
Subregion is changed described in each in the set of described change subregion, the form of playing up presetting size with one carries out data scanning, when data are Point element, to play up described in described Point element drops on completely in form or described in play up on the left margin of form, coboundary time obtain; When data are Linear element or area pattern, expanded scope obtains; When data for word and position cross over described in play up form time, obtain to playing up in form described in completely falling into according to word length, width deviations; When data for point symbol and position cross over described in play up form time, be offset to play up in form described in falling into completely and obtain.
5. network map local updating method according to claim 4, is characterized in that, described expanded scope, the width of the expansion space length size corresponding to the width of Linear element or area pattern sideline symbol.
6. network map local updating method according to claim 1, is characterized in that, described cutting frame, described detection block and described in play up form size be the integral multiple of the size of described tile; Wherein, the size of described cutting frame and described detection block also for described in play up the integral multiple of the size of form.
7. network map local updating method according to claim 1, is characterized in that, the size of described detection block is identical with the size of described change subregion.
8. network map local updating method according to claim 1, is characterized in that, described change data comprise: the key element of deleted key element, newly-increased key element, change.
9. network map local updating method according to claim 1, is characterized in that, described in play up form scanning for not multiple scanning.
10. a network map local updating device, is characterized in that, comprising:
Cutting module, for cutting with the cutting frame that presets size changing data area, obtains the change region after cutting;
Detection module, for detecting with the detection block that presets size described change region, having the regional record changing data for changing subregion by what detect, forming one and changing subregion set;
Production module, for carrying out scanning to the described change subregion in the set of described change subregion play up with the form of playing up that presets size, obtains new tile;
Numbering module, for exporting the numbering of the tile that each described change subregion covers;
Update module, for the numbering according to described tile, deletes the tile of identical for service end numbering, and newly-generated tile is copied to server.
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| CN112198882B (en) * | 2020-12-09 | 2021-12-07 | 苏州优智达机器人有限公司 | Method for robot to execute task, control device, robot and storage medium |
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