CN109408657A - A kind of ultra-large spatial data rapid drafting method and system - Google Patents
A kind of ultra-large spatial data rapid drafting method and system Download PDFInfo
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The present invention provides a kind of ultra-large spatial data rapid drafting method and system；Wherein, this method comprises: obtaining vector tile map online；Wherein, vector tile map includes vector tile data and tile pattern data；Determine the ranks range in the corresponding tile level of drawing demand and tile level；From vector tile map, tile level and the corresponding vector tile data of ranks range and tile pattern data are transferred；Splicing is carried out to vector tile data, generates grating map；Ornamenting processing is carried out to grating map, generates spatial data charting results.The present invention is based on chart in line vector tile map, and it is rendered according to the real-time dynamic that drawing carries out drawing pattern, its calculation amount is only related to the tile level and range transferred, calculating process is simple, avoid tradition drawing first reduce the staff chart afterwards caused by the big problem of data processing amount, improve spatial data drawing efficiency.
Description
Technical field
The present invention relates to geographic information system technic fields, more particularly, to a kind of ultra-large spatial data rapid drafting
Method and system.
Background technique
As earth observation, satellite remote sensing, ecological assessment, territory supervision are gradually sent out to macroscopic view, dynamic, fining direction
Exhibition, the generation of Fundamental Geographic Information Data and renewal speed be getting faster, and precision is higher and higher, thus form magnanimity it is more when
Phase, high-precision geography information performance data.With the growth of data volume and the expansion for range of charting, spatial data graphics software
Performance be not enough to carry the drawing demand of massive spatial data；Meanwhile with the increase of original data volume, map datum is reduced the staff
Workload increase accordingly, reduce the staff processing and take long time it is big in reply so that the efficiency of traditional map drawing means is relatively low
When scale geographical spatial data charts, many bottlenecks can be faced, it is difficult to meet the visitor of extensive space-time geodata rapid drafting
Sight demand.
It is taken long time for the drawing mode data processing of above-mentioned existing spatial data, the lower problem of efficiency not yet mentions
Effective solution scheme out.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of ultra-large spatial data rapid drafting method and system,
To improve spatial data drawing efficiency.
In a first aspect, the embodiment of the invention provides a kind of ultra-large spatial data rapid drafting method, this method packet
It includes: online to obtain vector tile map；Wherein, vector tile map includes vector tile data and tile pattern data；It determines
Ranks range in the corresponding tile level of drawing demand and tile level；From vector tile map, tile level is transferred
Vector tile data corresponding with ranks range and tile pattern data；Splicing is carried out to vector tile data, generates grid
Lattice map；Ornamenting processing is carried out to grating map, generates spatial data charting results.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on
Before stating online the step of obtaining vector tile map, method further include: obtain the spatial data of setting regions；To spatial data
Vector slice is carried out, the vector tile data of multi-layer is generated；According to drawing Demand Design drawing pattern, vector tile is generated
Pattern scheme；According to preset Map Service of Network specification and pattern scheme, publishing vector tile data forms online vector
Tile map.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides second of first aspect
Possible embodiment, wherein the above method further include: visualization processing is carried out to vector tile map；According to drawing demand
Pattern scheme is adjusted, tile pattern data is generated.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein it is above-mentioned that vector slice is carried out to spatial data, generate the step of the vector tile data of multi-layer
Suddenly, comprising: multidomain treat-ment is carried out to the corresponding figure layer of spatial data, forms the subregion figure layer of multiple levels；Wherein, subregion figure layer
For the corresponding figure layer of spatial data after subregion；The subregion figure layer of each level is made of multiple figure layer regions；Adjacent level
Subregion figure layer between, a figure layer region in upper level subregion figure layer corresponds to multiple figure layer areas in next stage subregion figure layer
Domain；According to the subregion figure layer of most junior, multidomain treat-ment is carried out to spatial data, to each number of regions in the spatial data after subregion
According to addition basis index mark；Subregion index mark is added for figure layer region each in each subregion figure layer；By multiple levels
Subregion figure layer, basis index mark and subregion index mark are determined as the vector tile data of multi-layer.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein it is above-mentioned according to drawing Demand Design drawing pattern, generate the step of the pattern scheme of vector tile
Suddenly, comprising: according to drawing demand, design the drawing pattern of vector tile data；According to drawing pattern, to vector tile data into
Row configuration, generates the pattern scheme of vector tile.
Second aspect, the embodiment of the invention provides a kind of ultra-large spatial data rapid drafting device, the device packets
Include: map obtains module, for obtaining vector tile map online；Wherein, vector tile map include vector tile data and
Tile pattern data；Determining module, for determining the ranks model in the corresponding tile level of drawing demand and tile level
It encloses；Transfer module, for from vector tile map, transfer tile level and the corresponding vector tile data of ranks range and watt
Piece pattern data；Splicing module generates grating map for carrying out splicing to vector tile data；Ornamenting processing
Module generates spatial data charting results for carrying out ornamenting processing to grating map.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
State device further include: data acquisition module, for obtaining the spatial data of setting regions；It is sliced module, for spatial data
Vector slice is carried out, the vector tile data of multi-layer is generated；Form design module, for according to drawing Demand Design drawing sample
Formula generates the pattern scheme of vector tile；Release module is used for according to preset Map Service of Network specification and pattern scheme,
Publishing vector tile data forms online vector tile map.
In conjunction with the first possible embodiment of second aspect, the embodiment of the invention provides second of second aspect
Possible embodiment, wherein above-mentioned apparatus further include: visualization model, for being carried out at visualization to vector tile map
Reason；Pattern adjusts module, for adjusting pattern scheme according to drawing demand, generates tile pattern data.
In conjunction with the first possible embodiment of second aspect, the embodiment of the invention provides the third of second aspect
Possible embodiment, wherein above-mentioned slice module is also used to: multidomain treat-ment is carried out to the corresponding figure layer of spatial data, is formed
The subregion figure layer of multiple levels；Wherein, subregion figure layer is the corresponding figure layer of spatial data after subregion；The block plan of each level
Layer is made of multiple figure layer regions；A figure layer region between the subregion figure layer of adjacent level, in upper level subregion figure layer
Multiple figure layer regions in corresponding next stage subregion figure layer；According to the subregion figure layer of most junior, spatial data is carried out at subregion
Reason adds basis index mark to area data each in the spatial data after subregion；For each figure layer in each subregion figure layer
Add subregion index mark in region；The subregion figure layer of multiple levels, basis index mark and subregion index mark are determined as more
The vector tile data of level.
The third aspect, the embodiment of the invention provides a kind of ultra-large spatial data quick draw graphics systems, including processing
Device and machine readable storage medium, machine readable storage medium are stored with the machine-executable instruction that can be executed by processor,
Processor executes machine-executable instruction to realize above-mentioned spatial data drafting method.
The embodiment of the present invention bring it is following the utility model has the advantages that
A kind of ultra-large spatial data rapid drafting method and system provided in an embodiment of the present invention, get arrow online
After measuring tile map, tile level and ranks range are determined according to drawing demand, then corresponding vector tile is transferred from map
Data and tile pattern data；By the vector tile data, grating map is generated, then ornamenting is carried out to the grating map, from
And generate spatial data charting results；Which is based on charting in line vector tile map, and needs to carry out according to drawing
The real-time of pattern that chart dynamically renders, and calculation amount is only related to the tile level and range transferred, and calculating process is simple, avoids
Traditional drawing is first reduced the staff chart afterwards caused by the big problem of data processing amount, improve spatial data drawing efficiency.
Other features and advantages of the present invention will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implementing above-mentioned technology of the invention it can be learnt that.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, better embodiment is cited below particularly, and match
Appended attached drawing is closed, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of ultra-large spatial data rapid drafting method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the ultra-large spatial data rapid drafting method of another kind provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of ultra-large spatial data rapid drafting device provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of ultra-large spatial data quick draw graphics system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Spatial data drawing is intuitive geography information expression means.Traditional spatial data drawing is to utilize geography information
Realize in graphics software, drafting method includes following key step: (1) data load, and load in geography information graphics software
Drawing basic data；(2) content determines, determines the theme and content of drawing；(3) Design of Symbols, the expression of designing and mapping content
Drawing(s) symbol；(4) data render uses the symbol rendering data of determining content and design in graphics software；(5) map is whole
Decorations, the ornamenting element of designing and mapping；(6) map exports, and exports final map.With the difference of plotting scale, need to original
Beginning spatial data reduces the staff processing, forms a variety of scale data, to meet the needs of spatial data drawing.
However, with the increase of luv space Data Data amount, the workload that map datum is reduced the staff is increase accordingly, so that work
Make personnel and take a significant amount of time processing data before drawing, cause drawing efficiency relatively low, it is difficult to meet extensive space-time
The objective demand of geodata rapid drafting.
In view of the drawing mode data processing of existing spatial data takes long time, the lower problem of efficiency, present invention reality
It applies example and provides a kind of ultra-large spatial data rapid drafting method and system；The technology can be applied to based on extensive empty
Between during data are charted, it is particularly possible to applied to the process for carrying out rapid drafting based on online spatial map data
In；The technology can use relevant software or hardware realization, be described below by embodiment.
A kind of flow chart of ultra-large spatial data rapid drafting method shown in Figure 1, this method include as follows
Step:
Step S102, it is online to obtain vector tile map；Wherein, the vector tile map include vector tile data and watt
Piece pattern data；
Step S104 determines the ranks range in the corresponding tile level of drawing demand and tile level；
In general, the map scale shown in different tile levels is different；For example, city-level map and provincial map be not
In same tile level, and city-level map is smaller than provincial map display range, and the scale bar of city-level map is greater than provincial map
Scale bar；If the drawing demand of user is city-level map, corresponding tile level is relatively lower than the tile layer of provincial map
Grade；According to city scope specific in drawing demand, the range of drawing starting and ending ranks is determined in the tile level.
Step S106, from vector tile map, transfer tile level and the corresponding vector tile data of ranks range and
Tile pattern data；
Step S108 carries out splicing to vector tile data, generates grating map；Specifically, by using tile
Stitching algorithm gradually splices vector tile, can form the complete grating map of target zone；
Step S110 carries out ornamenting processing to grating map, generates spatial data charting results.
Since above-mentioned vector tile map is issued on network, it not only include vector tile number in the map
According to further including the corresponding tile pattern data of each tile, to enhance the visuality of map；Due to the drawing demand of different user
Difference, therefore after getting grating map, other ornamenting objects can may be also added on this basis, for example, addition text,
Mark etc. generates final spatial data charting results to complete above-mentioned ornamenting processing.
A kind of ultra-large spatial data rapid drafting method provided in an embodiment of the present invention, gets vector tile online
After map, tile level and ranks range are determined according to drawing demand, then transfer from map corresponding vector tile data and
Tile pattern data；By the vector tile data, grating map is generated, then ornamenting is carried out to the grating map, to generate
Spatial data charting results；Which is based on charting in line vector tile map, and is needed to carry out drawing sample according to drawing
The real-time dynamic of formula renders, and calculation amount is only related to the tile level and range transferred, and calculating process is simple, avoids tradition
Drawing is first reduced the staff chart afterwards caused by the big problem of data processing amount, improve spatial data drawing efficiency.
The flow chart of the ultra-large spatial data rapid drafting method of another kind shown in Figure 2, this method is above-mentioned
It is realized on the basis of method shown in Fig. 1；This method comprises the following steps:
Step S202 obtains the spatial data of setting regions；
Step S204 carries out vector slice to spatial data, generates the vector tile data of multi-layer；
Specifically, above-mentioned steps S204 can be realized by following step:
(1) multidomain treat-ment is carried out to the corresponding figure layer of spatial data, forms the subregion figure layer of multiple levels；Wherein, subregion
Figure layer is the corresponding figure layer of spatial data after subregion；The subregion figure layer of each level is made of multiple figure layer regions；It is adjacent
Between the subregion figure layer of level, a figure layer region in upper level subregion figure layer corresponds to multiple figures in next stage subregion figure layer
Layer region；
(2) according to the subregion figure layer of most junior, multidomain treat-ment is carried out to spatial data, to every in the spatial data after subregion
A area data addition basis index mark；Subregion index mark is added for figure layer region each in each subregion figure layer；
(3) the subregion figure layer of multiple levels, basis index mark and subregion index mark are determined as to the vector of multi-layer
Tile data.
Extensive geographical spatial data can be subjected to vector slice through the above steps, form the multi-layer of covering universe
Vector tile data；Whether the tile of which level can seamlessly cover the range of entire spatial data.
Step S206 generates the pattern scheme of vector tile according to drawing Demand Design drawing pattern；
Single vector tile data is usually readable poor, and therefore, it is necessary to vector tile data designing and mapping patterns, and
It is configured to pattern scheme according to the demand of each vector tile, when user's online browse map to help amateur field, energy
It reaches and the operation such as quickly understands map, and be easily marked, inquire.
Step S208, according to preset Map Service of Network specification and pattern scheme, publishing vector tile data is formed in
The vector tile map of line.
Above-mentioned preset Map Service of Network specification can be universal network Map Services specification；Above-mentioned vector tile data
After pattern scheme carries out pattern processing, being formed has certain readable vector tile map；Pass through above-mentioned service regulation again
Map is distributed in Web page from local, to form online vector tile map service.
Step S210 carries out visualization processing to vector tile map；
Step S212 adjusts pattern scheme according to drawing demand, generates tile pattern data.
Specifically, above-mentioned steps S212 can be realized by following step: (1) according to drawing demand, designing vector tile
The drawing pattern of data；(2) according to drawing pattern, vector tile data is configured, generates the pattern scheme of vector tile.
Since vector tile map is Online Map, cartographer can carry out visualization processing, and root to the map in browser end
Beautification adjustment is carried out to drawing pattern parameter according to drawing demand, so that the pattern of vector tile map meets drawing demand.
Step S214, it is online to obtain vector tile map；Wherein, the vector tile map include vector tile data and watt
Piece pattern data；
Step S216 determines the ranks range in the corresponding tile level of drawing demand and tile level；
Step S218, from vector tile map, transfer tile level and the corresponding vector tile data of ranks range and
Tile pattern data；
Step S220 carries out splicing to vector tile data, generates grating map；
Step S222 carries out ornamenting processing to grating map, generates spatial data charting results.
In which, by the way that spatial data to be sliced, form design and issues, online vector tile can be obtained
Map is charted based on this in line vector tile map, can effectively solve first to reduce the staff chart afterwards caused by data processing amount
Big problem, and the tile map of multi-layer can satisfy the drawing requirement of multiple dimensioned scale bar；Which can be convenient ground root
Need to design Show Styles according to drawing, and dynamic renders in real time, pattern cannot after being sliced effectively to solve traditional map tile
Change, change pattern need to be sliced again and cause heavy workload, the complicated problem of processing mode；In addition, above-mentioned apprentice's mode
Data volume is only related with tile level and tile ranks range, and calculating process is simple tile splicing, may be implemented rapidly
Figure output solves the problems, such as that the rendering of tradition cartography export when big data quantity is computationally intensive, low efficiency, improves spatial data
Drawing efficiency.
Corresponding to above method embodiment, a kind of ultra-large spatial data rapid drafting device shown in Figure 3
Structural schematic diagram, the device include following part:
Map obtains module 30, for obtaining vector tile map online；Wherein, vector tile map includes vector tile
Data and tile pattern data；
Determining module 31, for determining the ranks range in the corresponding tile level of drawing demand and tile level；
Module 32 is transferred, for transferring tile level and the corresponding vector tile of ranks range from vector tile map
Data and tile pattern data；
Splicing module 33 generates grating map for carrying out splicing to vector tile data；
Ornamenting processing module 34 generates spatial data charting results for carrying out ornamenting processing to grating map.
Above-mentioned apparatus further include: data acquisition module, for obtaining the spatial data of setting regions；It is sliced module, is used for
Vector slice is carried out to spatial data, generates the vector tile data of multi-layer；Form design module, for according to drawing demand
Designing and mapping pattern generates the pattern scheme of vector tile；Release module, for according to preset Map Service of Network specification and
Pattern scheme, publishing vector tile data form online vector tile map.
Above-mentioned apparatus further include: visualization model, for carrying out visualization processing to vector tile map；Pattern adjusts mould
Block generates tile pattern data for adjusting pattern scheme according to drawing demand.
Above-mentioned slice module, is also used to: carrying out multidomain treat-ment to the corresponding figure layer of spatial data, forms point of multiple levels
Area's figure layer；Wherein, subregion figure layer is the corresponding figure layer of spatial data after subregion；The subregion figure layer of each level is by multiple figures
Layer region composition；Between the subregion figure layer of adjacent level, a figure layer region in upper level subregion figure layer corresponds to next fraction
Multiple figure layer regions in area's figure layer；According to the subregion figure layer of most junior, multidomain treat-ment is carried out to spatial data, after subregion
Each area data addition basis index mark in spatial data；Subregion rope is added for figure layer region each in each subregion figure layer
Tendering is known；The subregion figure layer of multiple levels, basis index mark and subregion index mark are determined as to the vector tile of multi-layer
Data.
A kind of ultra-large spatial data rapid drafting device provided in an embodiment of the present invention, gets vector tile online
After map, tile level and ranks range are determined according to drawing demand, then transfer from map corresponding vector tile data and
Tile pattern data；By the vector tile data, grating map is generated, then ornamenting is carried out to the grating map, to generate
Spatial data charting results；Which is based on charting in line vector tile map, and is needed to carry out drawing sample according to drawing
The real-time dynamic of formula renders, and calculation amount is only related to the tile level and range transferred, and calculating process is simple, avoids tradition
Drawing is first reduced the staff chart afterwards caused by the big problem of data processing amount, improve spatial data drawing efficiency.
A kind of structural schematic diagram of ultra-large spatial data quick draw graphics system shown in Figure 4；The equipment includes
Memory 100 and processor 101；Wherein, memory 100 is for storing one or more computer instruction, one or more meter
The instruction of calculation machine is executed by processor, to realize above-mentioned ultra-large spatial data rapid drafting method, the ultra-large space number
It according to rapid drafting method may include one of above method or a variety of.
Further, Network Management Equipment shown in Fig. 4 further includes bus 102 and communication interface 103, processor 101, communication interface
103 and memory 100 connected by bus 102.
Wherein, memory 100 may include high-speed random access memory (RAM, Random Access Memory),
It may further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.By extremely
A few communication interface 103 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection, can be used internet, wide area network, local network, Metropolitan Area Network (MAN) etc..Bus 102 can be isa bus, pci bus or
Eisa bus etc..The bus can be divided into address bus, data/address bus, control bus etc..Only to be used in Fig. 4 convenient for indicating
One four-headed arrow indicates, it is not intended that an only bus or a type of bus.
Processor 101 may be a kind of IC chip, the processing capacity with signal.It is above-mentioned during realization
Each step of method can be completed by the integrated logic circuit of the hardware in processor 101 or the instruction of software form.On
The processor 101 stated can be general processor, including central processing unit (Central Processing Unit, abbreviation
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital
Signal Processing, abbreviation DSP), specific integrated circuit (Application Specific Integrated
Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or
Person other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute sheet
Disclosed each method, step and logic diagram in disclosed embodiment.General processor can be microprocessor or this at
Reason device is also possible to any conventional processor etc..The step of method in conjunction with disclosed in disclosure embodiment, can direct body
Now executes completion for hardware decoding processor, or in decoding processor hardware and software module combine and execute completion.It is soft
Part module can be located at random access memory, and flash memory, read-only memory, programmable read only memory or electrically erasable programmable are deposited
In the storage medium of this fields such as reservoir, register maturation.The storage medium is located at memory 100, and processor 101 reads storage
Information in device 100, in conjunction with its hardware complete aforementioned embodiments method the step of.
Further, embodiment further provides a kind of machine readable storage medium, the machine readable storage mediums for the disclosure
It is stored with machine-executable instruction, when being called and being executed by processor, machine-executable instruction promotees the machine-executable instruction
Processor is set to realize above-mentioned ultra-large spatial data rapid drafting method, which can
To include one of above method or a variety of.
Ultra-large spatial data rapid drafting method, apparatus and system, propose one provided by the embodiment of the present invention
Extensive geographical publication of spatial data is the service of vector slice map, and led to by the extensive spatial data rapid drafting mode of kind
It crosses form design and tile splices rapid drafting；Specifically, it by the way that extensive spatial data to be sliced, efficiently solves traditional big
Data volume spatial data needs first to reduce the staff the problem charted afterwards, and multilayer grade pet chip can satisfy the drawing of multiple dimensioned scale bar and want
It asks, vector tile support dynamic customization drawing pattern meets interactive online drawing demand；Using tile joining method into
Row cartography export greatly reduces the rendering calculation amount problem of big data quantity vector data cartography export, and multi-layer tile
The cartography export requirement for supporting different resolution, provides new hand for the magnanimity geographical spatial data rapid drafting of big data era
Section has wide application prospect.
The computer journey of ultra-large spatial data rapid drafting method, apparatus and system provided by the embodiment of the present invention
Sequence product, the computer readable storage medium including storing program code, the instruction that said program code includes can be used for holding
Row previous methods method as described in the examples, specific implementation can be found in embodiment of the method, and details are not described herein.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of ultra-large spatial data rapid drafting method, which is characterized in that the described method includes:
It is online to obtain vector tile map；Wherein, the vector tile map includes vector tile data and tile pattern data；
Determine the ranks range in the corresponding tile level of drawing demand and the tile level；
From the vector tile map, transfer the tile level and the corresponding vector tile data of the ranks range and watt
Piece pattern data；
Splicing is carried out to the vector tile data, generates grating map；
Ornamenting processing is carried out to the grating map, generates spatial data charting results.
2. the method according to claim 1, wherein before the step of online acquisition vector tile map,
The method also includes:
Obtain the spatial data of setting regions；
Vector slice is carried out to the spatial data, generates the vector tile data of multi-layer；
According to drawing Demand Design drawing pattern, the pattern scheme of vector tile is generated；
According to preset Map Service of Network specification and the pattern scheme, the vector tile data is issued, is formed online
The vector tile map.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
Visualization processing is carried out to the vector tile map；
The pattern scheme is adjusted according to the drawing demand, generates the tile pattern data.
4. according to the method described in claim 2, it is characterized in that, described carry out vector slice, generation to the spatial data
The step of vector tile data of multi-layer, comprising:
Multidomain treat-ment is carried out to the corresponding figure layer of the spatial data, forms the subregion figure layer of multiple levels；Wherein, the subregion
Figure layer is the corresponding figure layer of the spatial data after subregion；The subregion figure layer of each level is by multiple figure layer region groups
At；Between the subregion figure layer of adjacent level, a figure layer region in upper level subregion figure layer corresponds to next stage block plan
Multiple figure layer regions in layer；
According to the subregion figure layer of most junior, multidomain treat-ment is carried out to the spatial data, to the space number after subregion
Each area data addition basis index mark in；Subregion index mark is added for figure layer region each in each subregion figure layer
Know；
The subregion figure layer of the multiple level, the basis index mark and subregion index mark are determined as multi-layer
The vector tile data.
5. according to the method described in claim 2, it is characterized in that, described according to drawing Demand Design drawing pattern, life
At vector tile pattern scheme the step of, comprising:
According to the drawing demand, the drawing pattern of the vector tile data is designed；
According to the drawing pattern, the vector tile data is configured, generates the pattern scheme of vector tile.
6. a kind of ultra-large spatial data rapid drafting device, which is characterized in that described device includes:
Map obtains module, for obtaining vector tile map online；Wherein, the vector tile map includes vector tile number
According to tile pattern data；
Determining module, for determining the ranks range in the corresponding tile level of drawing demand and the tile level；
Module is transferred, for transferring the tile level and the corresponding arrow of the ranks range from the vector tile map
Measure tile data and tile pattern data；
Splicing module generates grating map for carrying out splicing to the vector tile data；
Ornamenting processing module generates spatial data charting results for carrying out ornamenting processing to the grating map.
7. according to the method described in claim 6, it is characterized in that, described device further include:
Data acquisition module, for obtaining the spatial data of setting regions；
It is sliced module, for carrying out vector slice to the spatial data, generates the vector tile data of multi-layer；
Form design module, for generating the pattern scheme of vector tile according to drawing Demand Design drawing pattern；
Release module, for issuing the vector tile number according to preset Map Service of Network specification and the pattern scheme
According to forming the online vector tile map.
8. device according to claim 7, which is characterized in that described device further include:
Visualization model, for carrying out visualization processing to the vector tile map；
Pattern adjusts module, for adjusting the pattern scheme according to the drawing demand, generates the tile pattern data.
9. device according to claim 7, which is characterized in that the slice module is also used to:
Multidomain treat-ment is carried out to the corresponding figure layer of the spatial data, forms the subregion figure layer of multiple levels；Wherein, the subregion
Figure layer is the corresponding figure layer of the spatial data after subregion；The subregion figure layer of each level is by multiple figure layer region groups
At；Between the subregion figure layer of adjacent level, a figure layer region in upper level subregion figure layer corresponds to next stage block plan
Multiple figure layer regions in layer；
According to the subregion figure layer of most junior, multidomain treat-ment is carried out to the spatial data, to the space number after subregion
Each area data addition basis index mark in；Subregion index mark is added for figure layer region each in each subregion figure layer
Know；
The subregion figure layer of the multiple level, the basis index mark and subregion index mark are determined as multi-layer
The vector tile data.
10. a kind of ultra-large spatial data quick draw graphics system, which is characterized in that be situated between including processor and machine readable storage
Matter, the machine readable storage medium are stored with the machine-executable instruction that can be executed by the processor, the processor
The machine-executable instruction is executed to realize method described in any one of claim 1 to 5.
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