CN106777074A - Geographical information grid electronic map - Google Patents
Geographical information grid electronic map Download PDFInfo
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- CN106777074A CN106777074A CN201611144315.9A CN201611144315A CN106777074A CN 106777074 A CN106777074 A CN 106777074A CN 201611144315 A CN201611144315 A CN 201611144315A CN 106777074 A CN106777074 A CN 106777074A
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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
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/56—Information retrieval; Database structures therefor; File system structures therefor of still image data having vectorial format
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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
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Abstract
The invention discloses a geographic information grid electronic map, which comprises: a map image; the electronic scale assembly is used for setting a group of scales with different sizes; the grid picture generating component is used for cutting the map image picture into a series of basic grid pictures which are mutually adjacent according to the maximum scale; sequentially splicing a plurality of grid pictures corresponding to the large first-stage scale to form grid pictures of the small first-stage scale; (ii) ultimately forming a series of grid pictures corresponding to each of said set of scales; the vector database stores a group of vector data, each group of vector data corresponds to a scale, and the vector data is electronic geographic information; the map unit generation component is used for acquiring a series of grid pictures and vector data corresponding to a scale, superposing the vector data and the series of grid pictures to form a series of map units corresponding to the scale, and splicing the series of map units into a complete map according to the grid map.
Description
Technical field
This patent is related to the grille picture electronic map that geography information grid electron map is united.
Background technology
Electronic map refers to the map of the picture format for including electronic geographic-information, and electronic map has storage, carries
It is convenient, informative advantage, therefore be widely used in a variety of applications.
While electronic map includes a large amount of geography information, its size is also greatly increased.Existing electronic map is all
Monoblock type, is in units of city or district, to design on a map, by whole map and all when calling
Geography information call, the requirement further according to display work as field computation, the result obtained after display calculating.Then, call and
The process of calculating is just relatively slow, when user changes ratio, it is necessary to again according to display requires to calculate in
Hold, it appears be inconvenient.
Another defect of such map is inconvenient upgrading, and the modification of any one data is required for whole picture
Or geography information is modified, workload is very huge.
Patent content
This patent proposes a kind of electronic map based on grille picture, and map is divided into map list one by one
Unit, calls as needed, can greatly shorten the time called, meanwhile, workload can also be reduced when being upgraded.
According to the one side of this patent, geography information grid electron map figure is proposed, including：
Map image picture, is the map of taking photo by plane of a picture format；
Electronic dimension scale component, sets one group of engineer's scale for differing in size；
Grille picture formation component, is coupled to electronic dimension scale component, according to the high specific of electronic dimension scale module sets
Example chi, a series of basic grille picture adjacent to each other is cut into by map image picture；By several adjacent basic grids
Picture splices, and forms the grille picture of the small one-level engineer's scale of correspondence；Successively by the grille picture of the big one-level engineer's scale of several correspondences
Splicing, forms the grille picture of small one-level engineer's scale；Ultimately form corresponding to a series of grid of each in one group of engineer's scale
Trrellis diagram piece；
Vector database, is coupled to electronic dimension scale component, preserves one group of vector data, each group of vector data correspondence one
Individual engineer's scale, vector data is electronic geographic-information；
Map unit formation component, is coupled to grille picture formation component and vector database, obtains one ratio of correspondence
A series of grille pictures of chi, extract the vector data corresponding to corresponding proportion chi, by the vector data from vector database
Be superimposed with a series of grille pictures, formed to should engineer's scale a series of map units, by this series of map unit according to
Grating map is spliced into complete map, formed to should engineer's scale electronic map.
In one embodiment, grille picture is rectangle.
According to the another aspect of this patent, geography information grid electron map map generalization method is proposed, including：
The map of taking photo by plane of a picture format is retrieved as map image picture；
Set one group of engineer's scale for differing in size；
According to the maximum ratio chi of setting, map image picture is cut into a series of basic grid map adjacent to each other
Piece；
By several adjacent basic grille picture splicings, the grille picture of the small one-level engineer's scale of correspondence is formed；Successively will
The grille picture splicing of several big one-level engineer's scales of correspondence, forms the grille picture of small one-level engineer's scale；Ultimately form and correspond to
A series of grille pictures of each in one group of engineer's scale；
One group of vector data is preserved, each group of vector data corresponds to an engineer's scale, and vector data is electronic geographic-information；
A series of one grille picture of engineer's scale of correspondence are obtained, is extracted from vector database and is corresponded to corresponding proportion chi
Vector data, the vector data is superimposed with a series of grille pictures, formed to should engineer's scale a series of map units,
This series of map unit is spliced into complete map according to grating map, formed to should engineer's scale electronic map.
In one embodiment, grille picture is rectangle.
Map is divided into this patent map unit one by one, each map unit include it is corresponding take photo by plane map and
Geography information, for each engineer's scale, all with corresponding a series of map unit.When being called, can be direct
The map unit for having completed is called according to selected engineer's scale, just obtains including geography information electronically after being spliced
Figure, meanwhile, when data need local upgrading, it is only necessary to which corresponding map unit is modified.
Brief description of the drawings
Fig. 1 discloses the structure chart of the geography information grid electron map of this patent.
Fig. 2 discloses an example of grating map.
Fig. 3 discloses the flow chart of the generation method of the geography information grid electron map of this patent.
Specific embodiment
With reference to shown in Fig. 1, one embodiment of geography information grid electron map is disclosed, including：Map image Figure 10,
Electronic dimension scale component 11, grille picture formation component 12, vector database 13, map unit formation component 14.
Map image picture 10 is the map of taking photo by plane of a picture format.Electronic dimension scale component 11 sets one group and differs in size
Engineer's scale.Different engineer's scales is with a region in different the level of detail show maps.As will be described below, no
The same various sizes of grille picture of engineer's scale correspondence and the vector data of expression geography information.Table 1 discloses a ratio
The example of chi classification, discloses and which information can be shown under different engineer's scales.
Table 1
Grille picture formation component 12 is coupled to electronic dimension scale component 11, according to the maximum of electronic dimension scale module sets
Engineer's scale, a series of basic grille picture adjacent to each other is cut into by map image picture, by several adjacent basic grid
Trrellis diagram piece splices, and the grille picture of the small one-level engineer's scale of correspondence is formed, successively by the grid map of the big one-level engineer's scale of several correspondences
Piece splices, and forms the grille picture of small one-level engineer's scale；Ultimately form corresponding to a series of of each in one group of engineer's scale
Grille picture.According to this patent, first can be according to maximum engineer's scale, i.e., the requirement of most detailed display mode is by map image
Picture cuts into basic grille picture one by one, and map image picture is cut into mutual neck and connect by the more commonly used mode
The basic grille picture of rectangle.With reference to shown in Fig. 2, the unit 20 of each rectangle represents a basic grille picture.It is right
For the engineer's scale of small one-level (in table 1,1：1000 is exactly 1:500 small one-level engineer's scale), the scope shown by it is
The combination of several big one-level engineer's scales, therefore, by the grille picture splicing corresponding to several adjacent big one-level engineer's scales
Get up, just obtained the grille picture of small one-level engineer's scale.For example, in embodiment shown in Fig. 2, grille picture 20,21,22,
23 all correspond to 1:The grille picture of 500 engineer's scales, the grille picture or 22 and 23 combinations that 20 and 21 combinations are formed is formed
Grille picture just can with when correspond to 1:The grille picture of 1000 engineer's scales.It should be noted that the combination side of grille picture
Formula is not restricted, and several pieces of grille pictures that mutual neck connects can be combined the grid map to form small one-level engineer's scale as needed
Piece.For example, 1 can be corresponded to by a four grille pictures 20,21,22,23-grille picture for constituting:2000 engineer's scales
Grille picture.By above-mentioned mode, ultimately form corresponding to a series of grille pictures of each in one group of engineer's scale,
For each engineer's scale, a series of corresponding grille pictures are stitched together, it becomes possible to obtain complete map.
Vector database 13 is coupled to electronic dimension scale component 11, preserves one group of vector data, each group of vector data pair
An engineer's scale is answered, vector data is electronic geographic-information.Mention above, the electronic map with geography information includes Map
Two parts of piece and geography information, grille picture formation component 12 generates map picture for each engineer's scale, and vector number
According to storehouse 13 then for each engineer's scale preserves corresponding vector data, i.e. geography information.The map that different engineer's scales shows
The level of detail differs,
Therefore in vector database 13, the vector data of different scale is different types, such as, may be referred to
" display content " in table 1 designs the content of vector data.
Map unit formation component 14 is coupled to grille picture formation component 12 and vector database 13, the generation of map unit
Component 14 obtains a series of one grille picture of engineer's scale of correspondence, is extracted corresponding to corresponding proportion chi from vector database
Vector data, the vector data is superimposed with a series of grille pictures, formed to should engineer's scale a series of map units, will
This series of map unit is spliced into complete map according to grating map, formed to should engineer's scale electronic map.Map
Unit formation component 14 is used to be formed a series of map unit of each engineer's scale of correspondence.Such as, for 1 in table 1:
500 engineer's scales, map unit formation component 14 can successively call grille picture 20,21,22,23, and from vector database 13
It is middle to obtain correspondence engineer's scale 1:500 vector data, i.e. geography information, then add the vector data related to grille picture 20
Be downloaded on grille picture 20, the vector data related to grille picture 21 be loaded on grille picture 21, will be with grille picture
The vector data of 22 correlations is loaded on grille picture 22, the vector data related to grille picture 23 is loaded into grille picture
On 23.And for the other engineer's scale 1 of small one-level:1000, map unit formation component 14 can call the grid that 20 and 21 combinations are formed
Trrellis diagram piece, and the vector data related to the grille picture of the combination is obtained, common generation corresponds to engineer's scale 1:1000 ground
Figure unit.The like, map unit formation component 14 can generate a series of map unit for each engineer's scale, right
For each engineer's scale, related map unit spliced be can make up into complete map together.And different ratios
Vector data corresponding to chi is different.
The grille picture electronic map being thusly-formed, when for users to use, according to the selection of user and can work as
Preceding engineer's scale, calls corresponding picture element unit cell, is compared with traditional mode, it is not necessary to calls overall data, is also not required to
Calculating on the spot is carried out, therefore the speed called can be improved a lot.
It is overall without changing additionally, when data upgrading is carried out, it is also possible to carried out in units of map unit
Data, compared with traditional mode it is more convenient a lot.
With reference to shown in Fig. 3, this patent further discloses the generation method of geography information grid electron map, including following steps
Suddenly：
30th, the map of taking photo by plane of a picture format is retrieved as map image picture；
31st, one group of engineer's scale for differing in size is set；
32nd, according to the maximum ratio chi of setting, map image picture is cut into a series of basic grid adjacent to each other
Picture；Grille picture is generally rectangular；
33rd, by several adjacent basic grille picture splicings, the grille picture of the small one-level engineer's scale of correspondence is formed；Successively
The grille picture of the big one-level engineer's scale of several correspondences is spliced, the grille picture of small one-level engineer's scale is formed；Ultimately form correspondence
A series of grille pictures of each in one group of engineer's scale；
34th, one group of vector data of preservation, each group of vector data one engineer's scale of correspondence, vector data is electronic geographic letter
Breath；
35th, a series of one grille picture of engineer's scale of correspondence are obtained, is extracted from vector database and is corresponded to corresponding ratio
Example chi vector data, the vector data be superimposed with a series of grille pictures, formation to should engineer's scale a series of maps
Unit, complete map is spliced into by this series of map unit according to grating map, formed to should engineer's scale electronically
Figure.
Concrete details may be referred to description above to grille picture electronic map, be not repeated herein.
Map is divided into this patent map unit one by one, each map unit include it is corresponding take photo by plane map and
Geography information, for each engineer's scale, all with corresponding a series of map unit.When being called, can be direct
The map unit for having completed is called according to selected engineer's scale, just obtains including geography information electronically after being spliced
Figure, meanwhile, when data need local upgrading, it is only necessary to which corresponding map unit is modified.
Claims (4)
1. geography information grid electron map, it is characterised in that including：
Map image picture, is the map of taking photo by plane of a picture format；
Electronic dimension scale component, sets one group of engineer's scale for differing in size；
Grille picture formation component, is coupled to the electronic dimension scale component, according to the high specific of electronic dimension scale module sets
Example chi, a series of basic grille picture adjacent to each other is cut into by the map image picture；Will be several adjacent basic
Grille picture splices, and forms the grille picture of the small one-level engineer's scale of correspondence；Successively by the grid of the big one-level engineer's scale of several correspondences
Picture splices, and forms the grille picture of small one-level engineer's scale；Ultimately form corresponding to each in one group of described engineer's scale
A series of grille pictures；
Vector database, is coupled to the electronic dimension scale component, preserves one group of vector data, each group of vector data correspondence one
Individual engineer's scale, the vector data is electronic geographic-information；
Map unit formation component, is coupled to the grille picture formation component and the vector database, obtains correspondence one
A series of grille pictures of engineer's scale, extract the vector data corresponding to corresponding proportion chi, by the vector from vector database
Data are superimposed with a series of grille pictures, formed to should engineer's scale a series of map units, by this series of map unit
Be spliced into complete map according to grating map, formed to should engineer's scale electronic map.
2. geography information grid electron map as claimed in claim 1, it is characterised in that：
The grille picture is rectangle.
3. geography information grid electron map map generalization method, it is characterised in that including：
The map of taking photo by plane of a picture format is retrieved as map image picture；
Set one group of engineer's scale for differing in size；
According to the maximum ratio chi of setting, the map image picture is cut into a series of basic grid map adjacent to each other
Piece；
By several adjacent basic grille picture splicings, the grille picture of the small one-level engineer's scale of correspondence is formed；Successively will be several
The grille picture splicing of the big one-level engineer's scale of correspondence, forms the grille picture of small one-level engineer's scale；Ultimately form corresponding to described
One group of engineer's scale in a series of grille pictures of each；
One group of vector data is preserved, each group of vector data corresponds to an engineer's scale, and the vector data is electronic geographic-information；
A series of one grille picture of engineer's scale of correspondence are obtained, the arrow corresponding to corresponding proportion chi is extracted from vector database
Amount data, the vector data be superimposed with a series of grille pictures, formation to should engineer's scale a series of map units, by this
A series of map units are spliced into complete map according to grating map, formed to should engineer's scale electronic map.
4. the generation method of geography information grid electron map as claimed in claim 3, it is characterised in that the grille picture
It is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144315.9A CN106777074A (en) | 2016-12-13 | 2016-12-13 | Geographical information grid electronic map |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144315.9A CN106777074A (en) | 2016-12-13 | 2016-12-13 | Geographical information grid electronic map |
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| CN106777074A true CN106777074A (en) | 2017-05-31 |
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| CN201611144315.9A Pending CN106777074A (en) | 2016-12-13 | 2016-12-13 | Geographical information grid electronic map |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036096A (en) * | 2017-06-08 | 2018-12-18 | 腾讯科技（深圳）有限公司 | A kind of map is slotting along the line to put a control method and device |
| CN111008290A (en) * | 2019-12-11 | 2020-04-14 | 中国南方电网有限责任公司 | Power grid geographical edge layout display method and device, computer equipment and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719335A (en) * | 2009-11-12 | 2010-06-02 | 上海众恒信息产业有限公司 | Grid picture electronic map for geographic information system |
-
2016
- 2016-12-13 CN CN201611144315.9A patent/CN106777074A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719335A (en) * | 2009-11-12 | 2010-06-02 | 上海众恒信息产业有限公司 | Grid picture electronic map for geographic information system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036096A (en) * | 2017-06-08 | 2018-12-18 | 腾讯科技（深圳）有限公司 | A kind of map is slotting along the line to put a control method and device |
| CN111008290A (en) * | 2019-12-11 | 2020-04-14 | 中国南方电网有限责任公司 | Power grid geographical edge layout display method and device, computer equipment and storage medium |
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Application publication date: 20170531 |