CN104156475B - Geography information read method and device - Google Patents
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- CN104156475B CN104156475B CN201410422396.9A CN201410422396A CN104156475B CN 104156475 B CN104156475 B CN 104156475B CN 201410422396 A CN201410422396 A CN 201410422396A CN 104156475 B CN104156475 B CN 104156475B
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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 embodiment of the present invention provides a kind of geography information read method and device.This method includes：By the corresponding primitive information storage of multiple pels into same memory space；Receive target rank and keyword；The pel rank is determined according to the target rank, and the pel index of the corresponding pel of the keyword is obtained according to pel rank；The primitive information of pel is obtained from the storage address of pel index mark according to pel index.The embodiment of the present invention is by storing the primitive information of the pel on the corresponding electronic map in multiple geographic areas into same memory space, and according to target rank input by user and keyword, determine the pel title with keyword match, and pel index corresponding with pel title, the storage address of primitive information directly acquires primitive information in the memory space being directed toward according to pel index, compared to matching search is carried out in substantial amounts of raster data or coordinate data, the reading efficiency of geography information is improved.
Description
Technical field
The present embodiments relate to the communication technology more particularly to a kind of geography information read methods and device.
Background technology
With development in science and technology, the ratio of electronic map is enlarging or reducing or rotates and does not influence display effect, it has also become people
The indispensable instrument of daily life.
Electronic map stores geography information in a digital manner, is specifically divided into grid storage mode and vector storage mode,
In, grid storage mode stores geographical data and geographical attribute information in a manner of grid coding, vector storage mode with
Coordinated manner stores geographical data and geographical attribute information.
In the prior art, since electronic map carries substantial amounts of geography information, then grid storage mode needs to store big
The raster data of amount, vector storage mode need to store substantial amounts of coordinate data, substantial amounts of raster data or substantial amounts of number of coordinates
According to being stored in same memory space, when reading a certain geography information, it is necessary to a large amount of raster datas from the memory space
Or search and the matched raster data of geography information or coordinate data in coordinate data, cause reading efficiency low.
The content of the invention
The embodiment of the present invention provides a kind of geography information read method and device, to improve the reading efficiency of geography information.
The one side of the embodiment of the present invention is to provide a kind of geography information read method, including：
By the storage of multiple pels corresponding primitive information into same memory space, the multiple pel with samely
Region is managed to correspond to；
Reception target rank and keyword, the pel rank of the corresponding pel of keyword described in the target level identification,
The pel is corresponding with the geographic area in electronic map, and the pel rank is corresponding with the rank of the geographic area；
The pel rank is determined according to the target rank, and it is corresponding to obtain the keyword according to the pel rank
The pel index of pel；
The primitive information of the pel is obtained from the storage address of pel index mark according to pel index.
The other side of the embodiment of the present invention is to provide a kind of geography information and reads equipment, including：
Memory module is described more for storing the corresponding primitive information of multiple pels into same memory space
A pel is corresponding with same geographic area；
Receiving module, for receiving target rank and keyword, the corresponding figure of keyword described in the target level identification
The pel rank of member, the pel is corresponding with the geographic area in electronic map, the pel rank and the geographic area
Rank corresponds to；
For determining the pel rank according to the target rank, institute is obtained according to the pel rank for processing module
State the pel index of the corresponding pel of keyword；It is obtained according to pel index from the storage address of pel index mark
Take the primitive information of the pel.
Geography information read method and device provided in an embodiment of the present invention, by the way that multiple geographic areas are corresponding
The primitive information of pel on electronic map is stored into same memory space, and according to target rank input by user and key
Word determines to index with the pel title of keyword match and pel corresponding with pel title, is directed toward according to pel index
The storage address of primitive information directly acquires primitive information in the memory space, compared in substantial amounts of raster data or number of coordinates
Matching search is carried out in, improves the reading efficiency of geography information.
Description of the drawings
Fig. 1 is geography information read method flow chart provided in an embodiment of the present invention；
Fig. 2 is the structure chart for the geography information storage that another embodiment of the present invention provides；
Fig. 3 is the structure chart of geography information reading device provided in an embodiment of the present invention.
Specific embodiment
Fig. 1 is geography information read method flow chart provided in an embodiment of the present invention.The embodiment of the present invention is believed for geographical
The reading efficiency of breath provides the geography information read method of high reading efficiency, is as follows：
Step S100, by the corresponding primitive information storage of multiple pels into same memory space, the multiple figure
It is first corresponding with same geographic area；
Such as one secondary electronic map correspondence is divided into several pels, each pel according to the division rule in china administration region
Between corresponding geographical relationship can be coordination or inclusion relation, the pel of the multiple rank includes multiple
Provincial pel, multiple city-level pels, multiple pels at county level, multiple township level pels, wherein, provincial pel includes city-level pel, city
Grade pel includes pel at county level, and pel at county level includes township level pel, that is, each pel marked off is corresponding with pel rank, and
It is pel index that each pel, which corresponds to a unique mark, and the pel index is directed toward the storage of the primitive information of the pel
Location.The corresponding primitive information storage of all city-level pels, pel at county level, township level pel that one provincial pel includes is arrived
It is deposited in same memory space or by all pels at county level that city-level pel includes, the corresponding primitive information of township level pel
It stores up in same memory space, i.e., arrives the primitive information storage of the same geographic area such as pel that a province, a city include
In same memory space.
Step S101, target rank and keyword, the corresponding pel of keyword described in the target level identification are received
Pel rank, the pel is corresponding with the geographic area in electronic map, the pel rank and the rank of the geographic area
It is corresponding；
Target rank input by user and keyword are received, the corresponding pel of keyword described in the target level identification
Pel rank, the pel is corresponding with the geographic area in electronic map, the pel rank and the rank of the geographic area
It corresponds to, such as the rank " city " or user's input of user entered keyword " Shanghai " and the geographic area carry administrative grade
Geographic name such as " Shanghai City ", know that target rank is " city " by parsing, keyword is " Shanghai "；For another example, if user is defeated
" Chaoyang City " is entered, has known that target rank is " city " by parsing, keyword is " southern exposure ", can be shown in " city " on electronic map
" southern exposure " of rank can be specifically the Chaoyang City in Liaoning Province；If user has input " Chaoyang District ", electronic map shows Beijing
The Chaoyang District in city；If user merely entered " southern exposure " without input target rank, electronic map show pel title with
" southern exposure " matched all pels, which regional " southern exposure " what is inquired about for selection by the user is.
Step S102, determine the pel rank according to the target rank, the pass is obtained according to the pel rank
The pel index of the corresponding pel of key word；
The pel rank of pel to be found is determined according to the target rank, the pel rank is searched according to pel rank
In pel title with the keyword match, and the correspondence according to pel title and pel index obtains figure to be found
The pel index of member.
Step S103, indexed according to the pel and obtain the pel from the storage address of pel index mark
Primitive information.
The pel index is directed toward the storage address of the primitive information of pel, by pel index from storage address
Directly acquire the primitive information of pel.
The embodiment of the present invention is by the way that the primitive information of the pel on the corresponding electronic map in multiple geographic areas is deposited
It stores up in same memory space, and according to target rank input by user and keyword, determines the pel name with keyword match
Claim and pel corresponding with pel title indexes, the storage of primitive information in the memory space being directed toward according to pel index
Address directly acquires primitive information, compared to matching search is carried out in substantial amounts of raster data or coordinate data, improves ground
Manage the reading efficiency of information.
It is described that the corresponding primitive information storage of multiple pels is empty to same storage on the basis of above-described embodiment
Between include：Pel collection of the degree of approximation less than threshold value is obtained by the fuzziness of each pel of fuzzy matching principle basis, it will
The pel concentrates the corresponding primitive information storage of each pel into the same memory space.
The embodiment of the present invention specifically calculates the fuzziness of each pel using fuzziness computational methods, and fuzziness is calculated
Method does not limit, and the fuzziness according to each pel obtains the pel collection that the degree of approximation is less than threshold value, and threshold value herein is specific
For 5, such as provincial pel and this 4 grades provincial pel city-level pel included below, pel at county level, township level pel figures
Member constitutes the pel collection that the degree of approximation is less than 5；Or municipality directly under the Central Government's pel and municipality directly under the Central Government's pel urban district included below
This 3 grades of pels of pel, street pel also form the pel collection that the degree of approximation is less than 5.The pel is concentrated into the corresponding figure of each pel
Metamessage is stored into same memory space.The method that the embodiment of the present invention does not limit to pel division and pel collection structure.
It is described to determine the pel rank according to the target rank, obtain the keyword pair according to the pel rank
The pel index for the pel answered includes：It determines to gather according to target rank inquiry layered directory table, the layered directory table
Including multiple set, the set includes the corresponding pel title of multiple pels of same pel rank and pel rope
The correspondence drawn；Inquiry and the pel title of the keyword match from the set, and obtain the pel title pair
The pel index answered.
An embodiment of the present invention provides for storing the classification of the correspondence of the pel title and the pel index
Catalogue listing, layered directory table take layered structure according to pel rank, and a layered structure corresponds to a set, same pel grade
Other corresponding pel title of multiple pels and the correspondence of pel index are stored in identity set.
Layered directory table is inquired about according to target rank input by user, first definite set corresponding with target rank, then from
Inquiry and the pel title of the keyword match, further obtain the corresponding pel rope of the pel title in the set
Draw.
The embodiment of the present invention by target rank directly from layered directory table with being looked into the matched layer catalogue of target rank
The pel title with the keyword match is ask, correspondence is indexed according to the pel title stored in layered directory table and pel
The corresponding pel index of keyword is obtained, the figure with the keyword match need not be searched for successively from all pel ranks
First title compared to matching search is carried out in substantial amounts of raster data or coordinate data, improves the reading effect of geography information
Rate.
Fig. 2 is the structure chart for the geography information storage that another embodiment of the present invention provides.On the basis of above-described embodiment,
The memory space includes Chunk storage units.
Such as the pel collection includes a provincial pel and the provincial pel city-level pel included below, figure at county level
Member, township level pel this 4 grades of pels, then the memory space is specially chunk storage units, i.e., a pel is concentrated each pel
Into a chunk storage unit, the pel index of each pel is directed toward the pel letter of the pel for corresponding primitive information storage
Cease the storage address in chunk storage units.
On the basis of the embodiment of the present invention, the primitive information include primitive attribute information, pel thumbnail information and
Pel artwork information.
Primitive information includes primitive attribute information, pel thumbnail information and pel artwork information, the primitive attribute letter
Breath is the corresponding geographical attribute of the pel, latitude and longitude information, administrative area brief introduction, weather conditions, geologic aspects such as this area, in
The information such as heart mark；Pel thumbnail information is multiple ratio charts of the pel compared with actual geographic figure；Pel artwork information
It is the artwork for the pel that satellite positioning goes out, including real geographical form.
As shown in Fig. 2, pel 1, pel 2,3 corresponding primitive information of pel be respectively stored in chunk storage units 1,
In chunk storage units 2, chunk storage units 3, and each chunk storage units include attribute storage unit, thumbnail is deposited
Storage unit and artwork storage unit store primitive attribute information, pel thumbnail information and pel artwork information respectively.Pel 1,
Pel 2,3 corresponding pel of pel index key value 1, key value 2, key value 3 are stored in the Map based on Hash table i.e.
In HashMap, primitive information is read from the corresponding chunk storage units of pel by key value.
The embodiment of the present invention stores the primitive information of each pel of pre-set level into a chunk storage unit, reads
Taking need to only inquire about during the pel in pre-set level in a chunk storage unit, believe compared to the geography for reading different every time
Matching search will be carried out during breath from substantial amounts of raster data or coordinate data, improves the reading efficiency of geography information.
Fig. 3 is the structure chart of geography information reading device provided in an embodiment of the present invention；Provided in an embodiment of the present inventionly
Reason information read device can perform the process flow of geography information read method embodiment offer, as shown in figure 3, geography information
Reading device 30 includes memory module 33, receiving module 31 and processing module 32, wherein, memory module 33 is used for multiple pels
Into same memory space, the multiple pel is corresponding with same geographic area for corresponding primitive information storage；Receive mould
Block 31 is for receiving target rank and keyword, the pel rank of the corresponding pel of keyword described in the target level identification,
The pel is corresponding with the geographic area in electronic map, and the pel rank is corresponding with the rank of the geographic area；Processing
Module 32 is used to determine the pel rank according to the target rank, and obtaining the keyword according to the pel rank corresponds to
Pel pel index；According to the pel index pel is obtained from the storage address of pel index mark
Primitive information.
The embodiment of the present invention is by the way that the primitive information of the pel on the corresponding electronic map in multiple geographic areas is deposited
It stores up in same memory space, and according to target rank input by user and keyword, determines the pel name with keyword match
Claim and pel corresponding with pel title indexes, the storage of primitive information in the memory space being directed toward according to pel index
Address directly acquires primitive information, compared to matching search is carried out in substantial amounts of raster data or coordinate data, improves ground
Manage the reading efficiency of information.
On the basis of above-described embodiment, processing module 32 is additionally operable to through each pel of fuzzy matching principle basis
Fuzziness obtains the pel collection that the degree of approximation is less than threshold value；Memory module 33 is additionally operable to each pel be concentrated to correspond to the pel
Primitive information store into the same memory space.
Processing module 32 is specifically used for determining to gather according to target rank inquiry layered directory table, the layered directory
Table includes multiple set, described to gather the corresponding pel title of multiple pels and pel for including same pel rank
The correspondence of index；Inquiry and the pel title of the keyword match from the set, and obtain the pel title
Corresponding pel index.
The memory space includes Chunk storage units.
The primitive information includes primitive attribute information, pel thumbnail information and pel artwork information.
Geography information reading device provided in an embodiment of the present invention can be specifically used for performing the method that above-mentioned Fig. 1 is provided
Embodiment, details are not described herein again for concrete function.
The embodiment of the present invention stores the primitive information of each pel of pre-set level into a chunk storage unit, reads
Taking need to only inquire about during the pel in pre-set level in a chunk storage unit, believe compared to the geography for reading different every time
Matching search will be carried out during breath from substantial amounts of raster data or coordinate data, improves the reading efficiency of geography information.
In conclusion by the way that the primitive information storage of the pel on the corresponding electronic map in multiple geographic areas is arrived
In same memory space, and according to target rank input by user and keyword, the pel title with keyword match is determined, with
And pel index corresponding with pel title, it is straight according to the storage address of primitive information in the memory space of pel index direction
It obtains and takes primitive information, compared to matching search is carried out in substantial amounts of raster data or coordinate data, improve geography information
Reading efficiency；The primitive information of each pel of pre-set level is stored into a chunk storage unit, reads pre-set level
It need to only be inquired about during interior pel in a chunk storage unit, it will be from compared to when reading different geography information every time
Matching search is carried out in substantial amounts of raster data or coordinate data, improves the reading efficiency of geography information.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of division of logic function can have other dividing mode in actual implementation, such as multiple units or component can be tied
It closes or is desirably integrated into another system or some features can be ignored or does not perform.It is another, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be the INDIRECT COUPLING or logical by some interfaces, device or unit
Letter connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical location, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be employed in member is realized, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, is used including some instructions so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) perform the present invention
The part steps of embodiment the method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only memory (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. it is various
The medium of program code can be stored.
Those skilled in the art can be understood that, for convenience and simplicity of description, only with above-mentioned each function module
Division progress for example, in practical application, can be complete by different function modules by above-mentioned function distribution as needed
Into the internal structure of device being divided into different function modules, to complete all or part of function described above.On
The specific work process of the device of description is stated, may be referred to the corresponding process in preceding method embodiment, details are not described herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (6)
1. a kind of geography information read method, which is characterized in that including：
By the corresponding primitive information storage of multiple pels into same memory space, the multiple pel and same geographic region
Domain corresponds to；
Target rank and keyword are received, the pel rank of the corresponding pel of keyword, described described in the target level identification
Pel is corresponding with the geographic area in electronic map, and the pel rank is corresponding with the rank of the geographic area；
The pel rank is determined according to the target rank, and the corresponding pel of the keyword is obtained according to the pel rank
Pel index；
The primitive information of the pel is obtained from the storage address of pel index mark according to pel index；
Wherein, it is described to include the corresponding primitive information storage of multiple pels to same memory space：Pass through fuzzy
Fuzziness with each pel of principle basis obtains the pel collection that the degree of approximation is less than threshold value, and the pel is concentrated each figure
The corresponding primitive information storage of member is into the same memory space；
Wherein, it is described to determine the pel rank according to the target rank, obtain the keyword according to the pel rank
The pel index of corresponding pel includes：It determines to gather according to target rank inquiry layered directory table, the layered directory
Table includes multiple set, described to gather the corresponding pel title of multiple pels and pel for including same pel rank
The correspondence of index；Inquiry and the pel title of the keyword match from the set, and obtain the pel title
Corresponding pel index.
2. geography information read method according to claim 1, which is characterized in that the memory space is deposited including Chunk
Storage unit.
3. according to claim 1-2 any one of them geography information read methods, which is characterized in that the primitive information includes
Primitive attribute information, pel thumbnail information and pel artwork information.
4. a kind of geography information reads equipment, which is characterized in that including：
Memory module, for storing the corresponding primitive information of multiple pels into same memory space, the multiple figure
It is first corresponding with same geographic area；
Receiving module, for receiving target rank and keyword, the corresponding pel of keyword described in the target level identification
Pel rank, the pel is corresponding with the geographic area in electronic map, the pel rank and the rank of the geographic area
It is corresponding；
For determining the pel rank according to the target rank, the pass is obtained according to the pel rank for processing module
The pel index of the corresponding pel of key word；According to the pel index institute is obtained from the storage address of pel index mark
State the primitive information of pel；
Wherein, the processing module is additionally operable to small by the fuzziness acquisition degree of approximation of each pel of fuzzy matching principle basis
In the pel collection of threshold value；The memory module is additionally operable to the corresponding primitive information storage of each pel be concentrated to arrive the pel
In the same memory space；
Wherein, the processing module is specifically used for determining to gather according to target rank inquiry layered directory table, the classification
Catalogue listing include multiple set, it is described gather include same pel rank the corresponding pel title of multiple pels and
The correspondence of pel index；Inquiry and the pel title of the keyword match from the set, and obtain the pel
The corresponding pel index of title.
5. geography information according to claim 4 reads equipment, which is characterized in that the memory space is deposited including Chunk
Storage unit.
6. geography information according to claim 4 or 5 reads equipment, which is characterized in that the primitive information includes pel
Attribute information, pel thumbnail information and pel artwork information.
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| CN201410422396.9A CN104156475B (en) | 2014-08-25 | 2014-08-25 | Geography information read method and device |
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| CN201410422396.9A CN104156475B (en) | 2014-08-25 | 2014-08-25 | Geography information read method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105868189B (en) * | 2015-01-19 | 2018-12-28 | 高德软件有限公司 | A kind of electronic map spatial index method for building up and device |
| CN106802961B (en) * | 2017-02-15 | 2020-06-02 | 北京佳格天地科技有限公司 | Meteorological management device and method based on land parcel and computer system |
| CN109933640B (en) * | 2019-03-22 | 2023-02-03 | 信阳学院 | Geographic information reading device |
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|---|---|---|---|---|
| CN101370025A (en) * | 2007-08-17 | 2009-02-18 | 北京灵图软件技术有限公司 | Storing method, scheduling method and management system for geographic information data |
| CN102169494A (en) * | 2011-04-06 | 2011-08-31 | 北京师范大学 | Distributed remotely-sensed data managing system and method |
| CN103617295A (en) * | 2013-12-16 | 2014-03-05 | 北京锐安科技有限公司 | Method and device for processing geographic information vector data |
Family Cites Families (1)
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|---|---|---|---|---|
| US7254617B2 (en) * | 2002-12-06 | 2007-08-07 | Scott Ruple | Distributed cache between servers of a network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370025A (en) * | 2007-08-17 | 2009-02-18 | 北京灵图软件技术有限公司 | Storing method, scheduling method and management system for geographic information data |
| CN102169494A (en) * | 2011-04-06 | 2011-08-31 | 北京师范大学 | Distributed remotely-sensed data managing system and method |
| CN103617295A (en) * | 2013-12-16 | 2014-03-05 | 北京锐安科技有限公司 | Method and device for processing geographic information vector data |
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