CN107480175A - A kind of geographic information data screening technique, electronic equipment, storage medium and system based on gridding - Google Patents
A kind of geographic information data screening technique, electronic equipment, storage medium and system based on gridding Download PDFInfo
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- CN107480175A CN107480175A CN201710527764.XA CN201710527764A CN107480175A CN 107480175 A CN107480175 A CN 107480175A CN 201710527764 A CN201710527764 A CN 201710527764A CN 107480175 A CN107480175 A CN 107480175A
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- 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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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F16/9537—Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
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Abstract
The invention discloses a kind of geographic information data screening technique, electronic equipment, storage medium and system based on gridding, its method includes：By map grid, map is divided into some grid cells along longitude and latitude；Each local geographic information in map is associated with the POI point in map；The longitude coordinate and latitude coordinate of all boundary points in region to be analyzed are obtained, the affiliated grid cell in region is analysed to and is divided into zone boundary to be analyzed grid cell on grid cell and zone boundary to be analyzed；Obtain the first geography information that the point of the POI in zone boundary to be analyzed in grid cell includes；Judge whether the POI point on zone boundary to be analyzed in grid cell is in region to be analyzed, if so, then obtaining the second geography information that POI point includes, otherwise, exclude；First geography information and the second geography information are integrated, obtain the complete geography information in region to be analyzed.Screening scope is reduced, improves screening efficiency.
Description
Technical field
The present invention relates to area of geographic information, more particularly to a kind of geographic information data screening technique based on gridding,
Electronic equipment, storage medium and system.
Background technology
Geographic information data is the data for directly or indirectly associating some place relative to the earth, is to represent geographical position
Put, all salt files of the natural phenomena of characteristic distributions and social phenomenon.Existing geographic information data analysis region be directly facing base
Plinth geographic information data, due to Fundamental Geographic Information Data, often data volume is big, cause analysis it is computationally intensive, screening scope by
Constraint, it is impossible to screened according to user's actual need, cause analysis efficiency low.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a kind of amount of calculation is small, the high base of analysis efficiency
In the geographic information data screening technique of gridding.
The second object of the present invention is to provide a kind of electronic equipment.
The third object of the present invention is to provide a kind of computer-readable recording medium.
The fourth object of the present invention is to provide that a kind of amount of calculation is small, the high geography information based on gridding of analysis efficiency
Data screening system.
An object of the present invention adopts the following technical scheme that realization：
A kind of geographic information data screening technique based on gridding, including：
By map grid, the map is divided into some grid cells along longitude and latitude；
Each local geographic information in the map is associated with the POI point in map；
The longitude coordinate and latitude coordinate of all boundary points in region to be analyzed are obtained, is treated with reference to edge determination principle by described
The affiliated grid cell of analyzed area is divided into zone boundary to be analyzed grid cell on grid cell and zone boundary to be analyzed；
Obtain the first geography information that the POI point in the zone boundary to be analyzed in grid cell includes；
Judge whether the POI point on the zone boundary to be analyzed in grid cell is in the region to be analyzed,
If so, then obtaining the second geography information that the POI point includes, otherwise, the POI point is excluded；
First geography information and the second geography information are integrated, obtain the complete geographical letter in the region to be analyzed
Breath.
Further, the affiliated grid cell in region to be analyzed is divided into be analyzed by the combination edge determination principle
Grid cell on grid cell and zone boundary to be analyzed, is specifically included in zone boundary：Travel through the side in the region to be analyzed
Boundary's point, finds the grid cell residing for the boundary point, and the grid cell on two boundary point connecting lines is divided into and treated
Grid cell on analyzed area border, other grid cells in the region to be analyzed are divided into zone boundary to be analyzed
Grid cell.
Further, it is described to integrate first geography information and the second geography information, obtain the region to be analyzed
Complete geography information after, in addition to：
The complete geography information is visualized.
Further, the region to be analyzed is the arbitrary shaped region of user's selection.
The second object of the present invention adopts the following technical scheme that realization：
A kind of electronic equipment, including：Processor, memory and program, wherein described program are stored in the storage
In device, and it is configured to by the computing device, described program includes being used to perform a kind of ground based on gridding
Manage information data screening technique.
The third object of the present invention adopts the following technical scheme that realization：
A kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that：The computer program
It is executed by processor a kind of geographic information data screening technique based on gridding.
The fourth object of the present invention adopts the following technical scheme that realization：
A kind of geographic information data screening system based on gridding, including：
First division module, by map grid, the map is divided into some grid cells along longitude and latitude；
Information association module, each local geographic information in the map is associated with the POI point in map；
Coordinate obtaining module, obtain the longitude coordinate and latitude coordinate of all boundary points in region to be analyzed；
Second division module, the affiliated grid cell in region to be analyzed is divided into reference to edge determination principle to be analyzed
Grid cell on grid cell and zone boundary to be analyzed in zone boundary；
First geography information acquisition module, obtain the POI point bag in grid cell in the zone boundary to be analyzed
The first geography information contained；
Judge module, judges whether the POI point on the zone boundary to be analyzed in grid cell is treated in described
Analyzed area；
Second geography information acquisition module, when the judge module judges grid cell on the zone boundary to be analyzed
When interior POI point is in the region to be analyzed, the second geography information that the POI point includes is obtained；
Module is integrated, first geography information and the second geography information are integrated, obtain the complete of the region to be analyzed
Whole geography information.
Further, the affiliated grid cell in region to be analyzed is divided into be analyzed by the combination edge determination principle
Grid cell on grid cell and zone boundary to be analyzed, is specifically included in zone boundary：Travel through the side in the region to be analyzed
Boundary's point, finds the grid cell residing for the boundary point, and the grid cell on two boundary point connecting lines is divided into and treated
Grid cell on analyzed area border, other grid cells in the region to be analyzed are divided into zone boundary to be analyzed
Grid cell.
Further, the geographic information data screening system based on gridding also includes：
Display module, the complete geography information is visualized.
Compared to prior art, the beneficial effects of the present invention are：By by map grid, and by each region in map
Geography information is associated with the POI point in map, and each POI point is integrated into the grid cell of relevant position, when
When carrying out personalized screening to geography information, scope can will be being screened with after mesh fitting, directly obtaining screening scope Intranet
The data of lattice are analyzed, and reduce screening scope, improve screening and analysis efficiency.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the geographic information data screening technique schematic diagram based on gridding in the embodiment of the present invention；
Fig. 2 is the geographic information data screening system schematic diagram based on gridding in the embodiment of the present invention.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further：
As shown in figure 1, be the geographic information data screening technique based on gridding in the embodiment of the present invention, including following step
Suddenly：
Step 10, by map grid, the map is divided into some grid cells along longitude and latitude；
Preferably, according to the position distribution situation of involved Fundamental Geographic Information Data, a longitude and latitude scope is chosen
Size is suitable, and the map area of Fundamental Geographic Information Data is investigated in covering.
Preferably, the map area is divided into the grid of several shape size all sames along longitude and latitude method
Unit.
For example, according to longitude and latitude direction step-length all for 0.05 ° by map partitioning into grid cell.
Step 20, each local geographic information in the map associated with the POI point in map；
Specifically, the POI point in loading Fundamental Geographic Information Data, is positioned in caching, then travels through all POI
Information point, judge the position relationship of they and the grid cell, each POI point is integrated into the grid list of relevant position
In member, to ensure that subsequently the processing to grid cell and the processing to POI point in Fundamental Geographic Information Data are consistent.
Step 30, the longitude coordinate and latitude coordinate for obtaining all boundary points in region to be analyzed, with reference to edge determination principle
The affiliated grid cell in region to be analyzed is divided into zone boundary to be analyzed on grid cell and zone boundary to be analyzed
Grid cell；
Specifically, the boundary point in the traversal region to be analyzed, finds the grid cell residing for the boundary point, will be in
Grid cell on two boundary point connecting lines is divided into grid cell on zone boundary to be analyzed, by the region to be analyzed
Other grid cells be divided into grid cell in zone boundary to be analyzed.
Preferably, the region to be analyzed is the arbitrary shaped region of user's selection.
The first geographical letter that step 40, the POI point obtained in the zone boundary to be analyzed in grid cell include
Breath；
Specifically, for the grid cell inside region to be analyzed, the geographic information data for directly including grid cell
Region to be analyzed is associated with, that is, thinks the grid cell of border inner, its Fundamental Geographic Information Data included also belongs to
In region to be analyzed.
Step 50, judge whether POI point on the zone boundary to be analyzed in grid cell is treated minute in described
Region is analysed, if so, then obtaining the second geography information that the POI point includes；Otherwise, the POI point is excluded.
Step 60, first geography information and the second geography information integrated, obtain the complete of the region to be analyzed
Geography information.
As further embodiment, methods described also includes step：
Step 70, the complete geography information is visualized.
A kind of electronic equipment in the embodiment of the present invention, including：Processor, memory and program, wherein described program
It is stored in the memory, and is configured to by the computing device, described program includes being used to perform described one
Geographic information data screening technique of the kind based on gridding.
A kind of computer-readable recording medium in the embodiment of the present invention, is stored thereon with computer program, and its feature exists
In：The computer program is executed by processor a kind of geographic information data screening technique based on gridding.
As shown in Fig. 2 it is the geographic information data screening system based on gridding in the embodiment of the present invention.The system bag
Include with lower module：
First division module, by map grid, the map is divided into some grid cells along longitude and latitude；
Preferably, according to the position distribution situation of involved Fundamental Geographic Information Data, a longitude and latitude scope is chosen
Size is suitable, and the map area of Fundamental Geographic Information Data is investigated in covering.
Preferably, the map area is divided into the grid of several shape size all sames along longitude and latitude method
Unit.
For example, according to longitude and latitude direction step-length all for 0.05 ° by map partitioning into grid cell.
Information association module, each local geographic information in the map is associated with the POI point in map；
Specifically, the POI point in loading Fundamental Geographic Information Data, is positioned in caching, then travels through all POI
Information point, judge the position relationship of they and the grid cell, each POI point is integrated into the grid list of relevant position
In member, to ensure that subsequently the processing to grid cell and the processing to POI point in Fundamental Geographic Information Data are consistent.
Coordinate obtaining module, obtain the longitude coordinate and latitude coordinate of all boundary points in region to be analyzed；
Preferably, the region to be analyzed is the arbitrary shaped region of user's selection.
Second division module, the affiliated grid cell in region to be analyzed is divided into reference to edge determination principle to be analyzed
Grid cell on grid cell and zone boundary to be analyzed in zone boundary；
Specifically, the boundary point in the traversal region to be analyzed, finds the grid cell residing for the boundary point, will be in
Grid cell on two boundary point connecting lines is divided into grid cell on zone boundary to be analyzed, by the region to be analyzed
Other grid cells be divided into grid cell in zone boundary to be analyzed.
First geography information acquisition module, obtain the POI point bag in grid cell in the zone boundary to be analyzed
The first geography information contained；
Specifically, for the grid cell inside region to be analyzed, the geographic information data for directly including grid cell
Region to be analyzed is associated with, that is, thinks the grid cell of border inner, its Fundamental Geographic Information Data included also belongs to
In region to be analyzed.
Judge module, judges whether the POI point on the zone boundary to be analyzed in grid cell is treated in described
Analyzed area；
Second geography information acquisition module, when the judge module judges grid cell on the zone boundary to be analyzed
When interior POI point is in the region to be analyzed, the second geography information that the POI point includes is obtained；
Module is integrated, first geography information and the second geography information are integrated, obtain the complete of the region to be analyzed
Whole geography information.
Preferably, the system also includes：
Display module, the complete geography information is visualized.
Compared to prior art, the beneficial effects of the present invention are：By by map grid, and by each region in map
Geography information is associated with the POI point in map, and each POI point is integrated into the grid cell of relevant position, when
When carrying out personalized screening to geography information, scope can will be being screened with after mesh fitting, directly obtaining screening scope Intranet
The data of lattice are analyzed, and reduce screening scope, improve screening and analysis efficiency.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (9)
- A kind of 1. geographic information data screening technique based on gridding, it is characterised in that including：By map grid, the map is divided into some grid cells along longitude and latitude；Each local geographic information in the map is associated with the POI point in map；The longitude coordinate and latitude coordinate of all boundary points in region to be analyzed are obtained, will be described to be analyzed with reference to edge determination principle The affiliated grid cell in region is divided into zone boundary to be analyzed grid cell on grid cell and zone boundary to be analyzed；Obtain the first geography information that the POI point in the zone boundary to be analyzed in grid cell includes；Judge whether the POI point on the zone boundary to be analyzed in grid cell is in the region to be analyzed, if so, The second geography information that the POI point includes then is obtained, otherwise, excludes the POI point；First geography information and the second geography information are integrated, obtain the complete geography information in the region to be analyzed.
- 2. the geographic information data screening technique based on gridding as claimed in claim 1, it is characterised in that sentence on the combination border Determine principle and the affiliated grid cell in region to be analyzed is divided into grid cell and region to be analyzed in zone boundary to be analyzed Grid cell on border, is specifically included：The boundary point in the region to be analyzed is traveled through, finds the grid list residing for the boundary point Member, the grid cell on two boundary point connecting lines is divided into grid cell on zone boundary to be analyzed, treated described Other grid cells in analyzed area are divided into grid cell in zone boundary to be analyzed.
- 3. the geographic information data screening technique based on gridding as claimed in claim 1, it is characterised in that described by described first Geography information and the second geography information are integrated, after obtaining the complete geography information in the region to be analyzed, in addition to：The complete geography information is visualized.
- 4. such as any geographic information data screening techniques based on gridding of claim 1-3, it is characterised in that described to treat point Analyse the arbitrary shaped region that region is user's selection.
- 5. a kind of electronic equipment, it is characterised in that including：Processor, memory and program, wherein described program are stored in In the memory, and it is configured to by the computing device, described program includes requiring that 1-4 is any for perform claim Method described in one.
- 6. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that：The computer program quilt Method of the computing device as described in claim 1-4 any one.
- A kind of 7. geographic information data screening system based on gridding, it is characterised in that including：First division module, by map grid, the map is divided into some grid cells along longitude and latitude；Information association module, each local geographic information in the map is associated with the POI point in map；Coordinate obtaining module, obtain the longitude coordinate and latitude coordinate of all boundary points in region to be analyzed；Second division module, the affiliated grid cell in region to be analyzed is divided into region to be analyzed with reference to edge determination principle Grid cell on grid cell and zone boundary to be analyzed in border；First geography information acquisition module, obtain what the POI point in the zone boundary to be analyzed in grid cell included First geography information；Judge module, judge the POI point on the zone boundary to be analyzed in grid cell whether in described to be analyzed Region；Second geography information acquisition module, when the judge module is judged on the zone boundary to be analyzed in grid cell When POI point is in the region to be analyzed, the second geography information that the POI point includes is obtained；Module is integrated, first geography information and the second geography information are integrated, obtain the region to be analyzed intactly Manage information.
- 8. the geographic information data screening system based on gridding as claimed in claim 7, it is characterised in that the combination side The affiliated grid cell in region to be analyzed is divided into zone boundary to be analyzed grid cell and to be analyzed by boundary's resolution principle Grid cell on zone boundary, is specifically included：The boundary point in the region to be analyzed is traveled through, finds the net residing for the boundary point Lattice unit, the grid cell on two boundary point connecting lines is divided into grid cell on zone boundary to be analyzed, by institute Other grid cells stated in region to be analyzed are divided into grid cell in zone boundary to be analyzed.
- 9. the geographic information data screening system based on gridding as claimed in claim 7, it is characterised in that also include：Display module, the complete geography information is visualized.
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| CN109146995A (en) * | 2018-08-13 | 2019-01-04 | 长沙矿冶研究院有限责任公司 | A kind of typhoon distribution drawing drawing method and system |
| CN109344210A (en) * | 2018-08-21 | 2019-02-15 | 深圳市中电数通智慧安全科技股份有限公司 | A kind of grid bearing calibration, device and terminal device |
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