CN104156475A - Geographic information reading method and device - Google Patents
Geographic information reading method and device Download PDFInfo
- Publication number
- CN104156475A CN104156475A CN201410422396.9A CN201410422396A CN104156475A CN 104156475 A CN104156475 A CN 104156475A CN 201410422396 A CN201410422396 A CN 201410422396A CN 104156475 A CN104156475 A CN 104156475A
- Authority
- CN
- China
- Prior art keywords
- pel
- rank
- information
- index
- pels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Remote Sensing (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Processing Or Creating Images (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The embodiment of the invention provides a geographic information reading method and device. The method comprises the steps that pieces of pel information corresponding to a plurality of pels respectively are stored in the same storage space; a target level and a keyword are received; pel levels are determined according to the target level, and a pel index of a pel corresponding to the keyword is obtained according to the pel levels; the pel information of the pel is obtained from a storage address identified by the pel index according to the pel index. According to the geographic information reading method and device, the pieces of pel information of the pels, corresponding to a plurality of geographic regions respectively, on an electronic map are stored in the same storage space, a pel name matched with the keyword and the pel index corresponding to the pel name are determined according to the target level and the keyword input by a user, the pel information is directly obtained according to the storage address of the pel information, to which the pel index points, in the storage space, and compared with the mode of carrying out matching search in a large number of raster data or coordinate data, reading efficiency of geographic information is improved.
Description
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of geography information read method and device.
Background technology
Along with development in science and technology, the ratio of electronic chart enlarging or reducing or rotation and do not affect display effect, become the indispensable instrument of people's daily life.
Electronic chart is stored geography information with digital form, specifically be divided into grid storage mode and vector storage mode, wherein, grid storage mode is stored geographical graphic data and geographical attribute information in the mode of grid coding, and vector storage mode is stored geographical graphic data and geographical attribute information in coordinate mode.
In prior art, because electronic chart carries a large amount of geography information, grid storage mode need to be stored a large amount of raster datas, vector storage mode need to be stored a large amount of coordinate datas, a large amount of raster datas or a large amount of coordinate datas are stored in same storage space, when reading a certain geography information, raster data or coordinate data that need to from a large amount of raster datas of this storage space or coordinate data, search is mated with geography information, cause reading efficiency low.
Summary 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.
An aspect of the embodiment of the present invention is to provide a kind of geography information read method, comprising:
By a plurality of pels respectively corresponding primitive information store in same storage space, described a plurality of pels are corresponding with same geographic area;
Receiving target rank and key word, described target rank identifies the pel rank of the pel that described key word is corresponding, and described pel is corresponding with the geographic area in electronic chart, and described pel rank is corresponding with the rank of described geographic area;
According to described target rank, determine described pel rank, according to described pel rank, obtain the pel index of the pel that described key word is corresponding;
According to described pel index, from the memory address of described pel index sign, obtain the primitive information of described pel.
Another aspect of the embodiment of the present invention is to provide a kind of geography information fetch equipment, comprising:
Memory module, for by a plurality of pels respectively corresponding primitive information store same storage space into, described a plurality of pels are corresponding with same geographic area;
Receiver module, for receiving target rank and key word, described target rank identifies the pel rank of the pel that described key word is corresponding, and described pel is corresponding with the geographic area in electronic chart, and described pel rank is corresponding with the rank of described geographic area;
Processing module, for determining described pel rank according to described target rank, obtains the pel index of the pel that described key word is corresponding according to described pel rank; According to described pel index, from the memory address of described pel index sign, obtain the primitive information of described pel.
Geography information read method and device that the embodiment of the present invention provides, by by a plurality of geographic areas respectively the primitive information of the pel on corresponding electronic chart store in same storage space, and target rank and the key word according to user, inputted, determine the pel title with keyword match, and the pel index corresponding with pel title, according to the memory address of primitive information in this storage space of pel index point, directly obtain primitive information, in the raster data a large amount of or coordinate data, carry out match search, improved the reading efficiency of geography information.
Accompanying drawing explanation
The geography information read method process flow diagram that Fig. 1 provides for the embodiment of the present invention;
The structural drawing that Fig. 2 stores for the geography information that another embodiment of the present invention provides;
The structural drawing of the geography information reading device that Fig. 3 provides for the embodiment of the present invention.
Embodiment
The geography information read method process flow diagram that Fig. 1 provides for the embodiment of the present invention.The embodiment of the present invention, for the reading efficiency of geography information, provides the geography information read method of high reading efficiency, and concrete steps are as follows:
Step S100, by a plurality of pels respectively corresponding primitive information store in same storage space, described a plurality of pels are corresponding with same geographic area;
For example according to the division rule in china administration region, one secondary electronic chart correspondence is divided into several pels, geographical relationship corresponding between each pel can be coordination, also can be relation of inclusion, described a plurality of other pel of level comprises a plurality of provincial pels, a plurality of city-level pels, a plurality of pels at county level, a plurality of township level pels, wherein, provincial pel comprises city-level pel, city-level pel comprises pel at county level, pel at county level comprises township level pel, each pel marking off is to there being pel rank, and the corresponding unique sign of each pel is pel index, the memory address of the primitive information of pel described in described pel index point.All city-level pels that a provincial pel is comprised, pel at county level, township level the pel respectively primitive information of correspondence store in same storage space, or the pel all at county level that city-level pel is comprised, township level pel respectively corresponding primitive information store in same storage space, the primitive information that is about to the pel that same geographic area comprises as a province, Yi Ge city stores in same storage space.
Step S101, receiving target rank and key word, described target rank identifies the pel rank of the pel that described key word is corresponding, and described pel is corresponding with the geographic area in electronic chart, and described pel rank is corresponding with the rank of described geographic area;
Receive target rank and the key word of user's input, described target rank identifies the pel rank of the pel that described key word is corresponding, described pel is corresponding with the geographic area in electronic chart, described pel rank is corresponding with the rank of described geographic area, the rank " city " of user entered keyword " Shanghai " and this geographic area for example, or user input as " Shanghai City ", knows that through resolving target rank is " city " with the geographic name of administrative grade, and key word is " Shanghai "; For another example, if user has inputted " Chaoyang City ", through resolving, know that target rank is " city ", key word is " Chaoyang ", can demonstrate " city " level other " Chaoyang " on electronic chart, can be specifically the Chaoyang City in Liaoning Province; If user has inputted " Chaoyang District ", electronic chart shows the Chaoyang District of Beijing; If user has only inputted " Chaoyang " and do not inputted target rank, electronic chart demonstrates all pels that pel title is mated with " Chaoyang ", and what for user, select to inquire about is " Chaoyang " in which area.
Step S102, the described target rank of foundation are determined described pel rank, obtain the pel index of the pel that described key word is corresponding according to described pel rank;
According to described target rank, determine the pel rank of pel to be found, according to pel rank, search in this pel rank the pel title with described keyword match, and according to the corresponding relation of pel title and pel index, obtain the pel index of pel to be found.
Step S103, the described pel index of foundation obtain the primitive information of described pel from the memory address of described pel index sign.
The memory address of the primitive information of described pel index point pel is directly obtained the primitive information of pel by described pel index from memory address.
The embodiment of the present invention by by a plurality of geographic areas respectively the primitive information of the pel on corresponding electronic chart store in same storage space, and target rank and the key word according to user, inputted, determine the pel title with keyword match, and the pel index corresponding with pel title, according to the memory address of primitive information in this storage space of pel index point, directly obtain primitive information, in the raster data a large amount of or coordinate data, carry out match search, improved the reading efficiency of geography information.
On the basis of above-described embodiment, described by a plurality of pels respectively corresponding primitive information store same storage space into and comprise: by fuzzy matching principle basis described in each blur level of pel obtain the figure metaset that the degree of approximation is less than threshold value, concentrate primitive information corresponding to pel described in each to store in described same storage space described pel.
The embodiment of the present invention specifically adopts blur level computing method to calculate the blur level of pel described in each, blur level computing method are not limited, blur level according to pel described in each obtains the figure metaset that the degree of approximation is less than threshold value, threshold value is herein specially 5, and the city-level pel that for example a provincial pel and this provincial pel comprise below, pel at county level, these 4 grades of pels of township level pel have formed the figure metaset that the degree of approximation is less than 5; Or the urban district pel that Yi Ge municipality directly under the Central Government pel and this municipality directly under the Central Government's pel comprise below, these 3 grades of pels of street pel also form the figure metaset that the degree of approximation is less than 5.Concentrate primitive information corresponding to each pel to store in same storage space described pel.The embodiment of the present invention is not limited to the method that pel is divided and figure metaset builds.
The described target rank of described foundation is determined described pel rank, the pel index that obtains the pel that described key word is corresponding according to described pel rank comprises: according to described target rank inquiry layered directory table, determine set, described layered directory table comprises a plurality of described set, and described set comprises the corresponding relation of each self-corresponding pel title of other a plurality of pels of same pel level and pel index; The pel title of inquiry and described keyword match from described set, and obtain pel index corresponding to described pel title.
The embodiment of the present invention provides for storing the layered directory table of the corresponding relation of described pel title and described pel index, layered directory table is taked hierarchy according to pel rank, a corresponding set of hierarchy, the corresponding relation of each self-corresponding pel title of other a plurality of pels of same pel level and pel index is stored in identity set.
According to the target rank inquiry layered directory table of user input, first determine the set corresponding with target rank, then from described set the pel title of inquiry and described keyword match, further obtain pel index corresponding to described pel title.
The pel title of inquiry and described keyword match in the layer catalogue that the embodiment of the present invention is directly mated with target rank by target rank from layered directory table, according to the pel title of storing in layered directory table, obtain with pel index corresponding relation the pel index that key word is corresponding, need to from all pel ranks, not search for successively the pel title with described keyword match, in the raster data a large amount of or coordinate data, carry out match search, improved the reading efficiency of geography information.
The structural drawing that Fig. 2 stores for the geography information that another embodiment of the present invention provides.On the basis of above-described embodiment, described storage space comprises Chunk storage unit.
For example described figure metaset comprises city-level pel, pel at county level, these 4 grades of pels of township level pel that a provincial pel and this provincial pel comprise below, described storage space is specially chunk storage unit, be about to a pel and concentrate primitive information corresponding to each pel to store in a chunk storage unit, the memory address of the primitive information of pel in chunk storage unit described in the pel index point of each pel.
On the basis of the embodiment of the present invention, described primitive information comprises the former figure information of primitive attribute information, pel thumbnail information and pel.
Primitive information comprises the former figure information of primitive attribute information, pel thumbnail information and pel, described primitive attribute information is the geographical attribute that this pel is corresponding, as information such as the latitude and longitude information of this area, administrative area brief introduction, weather conditions, geologic aspects, center reference points; Pel thumbnail information is that this pel is with respect to a plurality of scale maps of actual geographic figure; The former figure information of pel is the former figure of this pel of going out of satnav, comprises real geographical form.
As shown in Figure 2, the primitive information of pel 1, pel 2, pel 3 correspondences is stored in respectively in chunk storage unit 1, chunk storage unit 2, chunk storage unit 3, and each chunk storage unit comprises property store unit, thumbnail storage unit and former figure storage unit, deposit respectively the former figure information of primitive attribute information, pel thumbnail information and pel.The Map that pel 1, pel 2, the pel index key value 1 of pel 3 correspondences, key value 2, key value 3 are stored in based on Hash table is in HashMap, by key value, from chunk storage unit corresponding to pel, reads primitive information.
The embodiment of the present invention stores the primitive information of each pel of pre-set level in a chunk storage unit into, while reading the pel in pre-set level, only need in a chunk storage unit, inquire about, all to from a large amount of raster data or coordinate data carry out match search when reading different geography information at every turn, improve the reading efficiency of geography information.
The structural drawing of the geography information reading device that Fig. 3 provides for the embodiment of the present invention; The geography information reading device that the embodiment of the present invention provides can be carried out the treatment scheme that geographical information-reading method embodiment provides, as shown in Figure 3, geography information reading device 30 comprises memory module 33, receiver module 31 and processing module 32, wherein, memory module 33 for by a plurality of pels respectively corresponding primitive information store same storage space into, described a plurality of pels are corresponding with same geographic area; Receiver module 31 is for receiving target rank and key word, and described target rank identifies the pel rank of the pel that described key word is corresponding, and described pel is corresponding with the geographic area in electronic chart, and described pel rank is corresponding with the rank of described geographic area; Processing module 32, for determining described pel rank according to described target rank, obtains the pel index of the pel that described key word is corresponding according to described pel rank; According to described pel index, from the memory address of described pel index sign, obtain the primitive information of described pel.
The embodiment of the present invention by by a plurality of geographic areas respectively the primitive information of the pel on corresponding electronic chart store in same storage space, and target rank and the key word according to user, inputted, determine the pel title with keyword match, and the pel index corresponding with pel title, according to the memory address of primitive information in this storage space of pel index point, directly obtain primitive information, in the raster data a large amount of or coordinate data, carry out match search, improved the reading efficiency of geography information.
On the basis of above-described embodiment, processing module 32 also obtains for the blur level by fuzzy matching principle basis pel described in each figure metaset that degree of approximation is less than threshold value; Memory module 33 is also for concentrating described pel primitive information corresponding to pel described in each to store described same storage space into.
Processing module 32 is specifically for determining set according to described target rank inquiry layered directory table, described layered directory table comprises a plurality of described set, and described set comprises the corresponding relation of each self-corresponding pel title of other a plurality of pels of same pel level and pel index; The pel title of inquiry and described keyword match from described set, and obtain pel index corresponding to described pel title.
Described storage space comprises Chunk storage unit.
Described primitive information comprises the former figure information of primitive attribute information, pel thumbnail information and pel.
The embodiment of the method that the geography information reading device that the embodiment of the present invention provides can provide specifically for carrying out above-mentioned Fig. 1, concrete function repeats no more herein.
The embodiment of the present invention stores the primitive information of each pel of pre-set level in a chunk storage unit into, while reading the pel in pre-set level, only need in a chunk storage unit, inquire about, all to from a large amount of raster data or coordinate data carry out match search when reading different geography information at every turn, improve the reading efficiency of geography information.
In sum, by by a plurality of geographic areas respectively the primitive information of the pel on corresponding electronic chart store in same storage space, and target rank and the key word according to user, inputted, determine the pel title with keyword match, and the pel index corresponding with pel title, according to the memory address of primitive information in this storage space of pel index point, directly obtain primitive information, in the raster data a large amount of or coordinate data, carry out match search, improved the reading efficiency of geography information; The primitive information of each pel of pre-set level is stored in a chunk storage unit, while reading the pel in pre-set level, only need in a chunk storage unit, inquire about, all to from a large amount of raster data or coordinate data carry out match search when reading different geography information at every turn, improve the reading efficiency of geography information.
In several embodiment provided by the present invention, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.
The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) carry out the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (Read-Only Memory, ROM), the various media that can be program code stored such as random access memory (Random Access Memory, RAM), magnetic disc or CD.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the inner structure that is about to device is divided into different functional modules, to complete all or part of function described above.The specific works process of the device of foregoing description, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a geography information read method, is characterized in that, comprising:
By a plurality of pels respectively corresponding primitive information store in same storage space, described a plurality of pels are corresponding with same geographic area;
Receiving target rank and key word, described target rank identifies the pel rank of the pel that described key word is corresponding, and described pel is corresponding with the geographic area in electronic chart, and described pel rank is corresponding with the rank of described geographic area;
According to described target rank, determine described pel rank, according to described pel rank, obtain the pel index of the pel that described key word is corresponding;
According to described pel index, from the memory address of described pel index sign, obtain the primitive information of described pel.
2. method according to claim 1, is characterized in that, described by a plurality of pels respectively corresponding primitive information store same storage space into and comprise:
Blur level by fuzzy matching principle basis pel described in each obtains the figure metaset that the degree of approximation is less than threshold value, concentrates primitive information corresponding to pel described in each to store in described same storage space described pel.
3. method according to claim 2, is characterized in that, the described target rank of described foundation is determined described pel rank, and the pel index that obtains the pel that described key word is corresponding according to described pel rank comprises:
According to described target rank inquiry layered directory table, determine set, described layered directory table comprises a plurality of described set, and described set comprises the corresponding relation of each self-corresponding pel title of other a plurality of pels of same pel level and pel index;
The pel title of inquiry and described keyword match from described set, and obtain pel index corresponding to described pel title.
4. method according to claim 3, is characterized in that, described storage space comprises Chunk storage unit.
5. according to the method described in claim 1-4 any one, it is characterized in that, described primitive information comprises the former figure information of primitive attribute information, pel thumbnail information and pel.
6. a geography information fetch equipment, is characterized in that, comprising:
Memory module, for by a plurality of pels respectively corresponding primitive information store same storage space into, described a plurality of pels are corresponding with same geographic area;
Receiver module, for receiving target rank and key word, described target rank identifies the pel rank of the pel that described key word is corresponding, and described pel is corresponding with the geographic area in electronic chart, and described pel rank is corresponding with the rank of described geographic area;
Processing module, for determining described pel rank according to described target rank, obtains the pel index of the pel that described key word is corresponding according to described pel rank; According to described pel index, from the memory address of described pel index sign, obtain the primitive information of described pel.
7. geography information fetch equipment according to claim 6, is characterized in that, described processing module also obtains for the blur level by fuzzy matching principle basis pel described in each figure metaset that degree of approximation is less than threshold value; Described memory module is also for concentrating described pel primitive information corresponding to pel described in each to store described same storage space into.
8. geography information fetch equipment according to claim 7, it is characterized in that, described processing module is specifically for determining set according to described target rank inquiry layered directory table, described layered directory table comprises a plurality of described set, and described set comprises the corresponding relation of each self-corresponding pel title of other a plurality of pels of same pel level and pel index; The pel title of inquiry and described keyword match from described set, and obtain pel index corresponding to described pel title.
9. geography information fetch equipment according to claim 8, is characterized in that, described storage space comprises Chunk storage unit.
10. according to the geography information fetch equipment described in claim 6-9 any one, it is characterized in that, described primitive information comprises the former figure information of primitive attribute information, pel thumbnail information and pel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422396.9A CN104156475B (en) | 2014-08-25 | 2014-08-25 | Geography information read method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422396.9A CN104156475B (en) | 2014-08-25 | 2014-08-25 | Geography information read method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104156475A true CN104156475A (en) | 2014-11-19 |
| CN104156475B CN104156475B (en) | 2018-06-01 |
Family
ID=51881973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410422396.9A Active CN104156475B (en) | 2014-08-25 | 2014-08-25 | Geography information read method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104156475B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016116031A1 (en) * | 2015-01-19 | 2016-07-28 | 高德软件有限公司 | Method and device for establishing spatial index of electronic map |
| CN106802961A (en) * | 2017-02-15 | 2017-06-06 | 北京佳格天地科技有限公司 | Meteorological managing device, method and computer system based on plot |
| CN109933640A (en) * | 2019-03-22 | 2019-06-25 | 信阳学院 | A kind of geography information reading device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080189383A1 (en) * | 2002-12-06 | 2008-08-07 | Karl Schuh | Distributed cache between servers of a network |
| 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 |
-
2014
- 2014-08-25 CN CN201410422396.9A patent/CN104156475B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080189383A1 (en) * | 2002-12-06 | 2008-08-07 | Karl Schuh | Distributed cache between servers of a network |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016116031A1 (en) * | 2015-01-19 | 2016-07-28 | 高德软件有限公司 | Method and device for establishing spatial index of electronic map |
| CN106802961A (en) * | 2017-02-15 | 2017-06-06 | 北京佳格天地科技有限公司 | Meteorological managing device, method and computer system based on plot |
| 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 |
| CN109933640A (en) * | 2019-03-22 | 2019-06-25 | 信阳学院 | A kind of geography information reading device |
| CN109933640B (en) * | 2019-03-22 | 2023-02-03 | 信阳学院 | Geographic information reading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104156475B (en) | 2018-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102176206B (en) | Periphery searching method and device of points of interest | |
| CN108920462B (en) | Point of interest (POI) retrieval method and device based on map | |
| CN103927933B (en) | A kind of magnanimity moves method and the device that target renders | |
| US20230041991A1 (en) | Density-based dynamic geohash | |
| US9719790B2 (en) | Mapping uncertain geometries to graticules | |
| US10034141B2 (en) | Systems and methods to identify home addresses of mobile devices | |
| CN102262666B (en) | System for processing category information on electronic map | |
| CN103914498A (en) | Search recommending method and device for map searching | |
| CN103412962A (en) | Storage method and reading method for mass tile data | |
| CN104252489A (en) | Method for fast obtaining position character description information according to latitude and longitude data | |
| CN106033460A (en) | Address data processing method and apparatus | |
| CN111522838B (en) | Address similarity calculation method and device | |
| CN104539750A (en) | IP locating method and device | |
| CN104199860A (en) | Dataset fragmentation method based on two-dimensional geographic position information | |
| US20180276242A1 (en) | System and Method For Efficient Geospatial Indexing | |
| CN109885638B (en) | Three-dimensional space indexing method and system | |
| CN112486987A (en) | City inquiry method, device, equipment and storage medium based on longitude and latitude | |
| CN104156475A (en) | Geographic information reading method and device | |
| CN103476003A (en) | Geographic information storage method for mobile equipment and mobile equipment | |
| CN108776666A (en) | It is a kind of to fall to arrange spatial key word querying method and device with Trie based on keyword | |
| CN102103600B (en) | Map building method and map system | |
| CN104063421A (en) | Retrieval method and device for mass transportation remote sensing data | |
| CN105373538A (en) | Method and device for determining display levels of polygonal objects | |
| US8914357B1 (en) | Mapping keywords to geographic features | |
| CN102708109B (en) | Raster data reading method and device and raster data writing method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |