CN103744997A - Network map service publication method and system - Google Patents
Network map service publication method and system Download PDFInfo
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- CN103744997A CN103744997A CN201410031750.5A CN201410031750A CN103744997A CN 103744997 A CN103744997 A CN 103744997A CN 201410031750 A CN201410031750 A CN 201410031750A CN 103744997 A CN103744997 A CN 103744997A
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Abstract
The invention relates to a network map service publication method and system. The method includes: creating tile map sources at a server end, compiling a tile cache configuration file, defining the storage mode as hybrid loose cache, applying JPEG formats to the tiles in the middle of a cache area, and applying PNG formats to the tiles on the periphery of the cache area; changing the name suffixes of the generated tiles into PNG so as to unify data types, and changing the tile format parameter in the tile cache configuration file into PNG; publishing a map service, and providing a TMS and WMTS access interface to a client. The method has the advantages that hybrid slicing technology is used, advantages of PNG and JPEG are fully utilized, the hybrid tiles of high-resolution images are enabled to be fast accessed in the Internet through the TMS and WMTS interface, and tiles on the periphery of the cache area can be well displayed when the images are overlaid with other map resources.
Description
Technical field
The present invention relates to Map Services technical field, relate in particular to a kind of Map Service of Network dissemination method and system.
Background technology
Along with the development of the universal and high resolution image of internet electronic map, the electronic chart of high resolution image progresses into the popular eye of looking.Be subject to that Internet bandwidth and image data are large etc. to be affected, the image electronic chart on internet adopts tile Groupe de la Pyramide data more at present, and by TMS or the Web service of WMTS(slice map) access interface is externally provided.
The pyramidal tile of image tile adopts PNG or jpeg format more, wherein for high-resolution image, if adopt PNG form, more than individual tile size on average can reach 50kb, like this, in network environment particularly under mobile network environment, the stand-by period of image display is long, and network traffic data consumption is large, so, for high-resolution image, ideal situation is to use the tile pyramid of jpeg format.
But, because the tile of jpeg format does not have the character of transparent demonstration, when in the high map area of scaling that zonal high resolution image is added to, in the edge tile of high resolution image, the region of shortage of data will override the map of lower floor, be unfavorable for that like this user consults a map, visual effect is not good, does not obviously meet people's requirement.
For using in TMS and WMTS interface accessing image process, when image Overlapping display, can fast access and can make territory, non-data regions in image edge tile transparent and demonstrate the map of lower floor, one solution easily need to be proposed.
Summary of the invention
In order to overcome the weak point of the prior art of above-mentioned indication, the invention provides a kind of Map Service of Network dissemination method and system, think that user provides a kind of PNG/JPEG blended data service solution, makes full use of the advantage of PNG and two kinds of forms of JPEG.
The present invention is achieved by the following technical solutions:
A kind of Map Service of Network dissemination method, its step comprises:
S1, at server end, create tile map resource, write tile cached configuration file, definition memory module is the loose buffer memory of mixed type, to being positioned at the tile application jpeg format at buffer area middle part, to the tile application PNG form of buffer area periphery;
S2, the tile title suffix of generation is modified as to PNG with unified definition data type, and the tile format parameter of revising in tile cached configuration file is PNG;
S3, issue Map Services, provide TMS and WMTS access interface to client, and the Map Services of giving tacit consent to described issue when described client conducts interviews is TMS or the WMTS service of PNG form.
Preferably, in step S1, utilize corresponding map slice tool to generate the loose buffer memory of mixed type; Described corresponding map slice tool comprises ArcGIS Server, MapTiler and/or Global Mapper.
Preferably, in step S2, directly by batch processing method, the title suffix of the tile that adopts root directory mode to organize is modified as to PNG.
Preferably, in step S2, revise parameters and corresponding map release process compatibility mutually in tile cached configuration file, comprise the directory name that represents engineer's scale level is revised as to hexadecimal value; Corresponding map release process comprises GeoWebCache, ArcGIS Server and/or MapServer.
Preferably, in step S3, by map release process issue Map Services such as GeoWebCache, ArcGIS Server or MapServer, when the map release processs such as GeoWebCache, ArcGIS Server or MapServer are intercepted and captured after user's request of access, the map tile that described step S1 is created is defaulted as PNG form, and plays up to client.
The invention also discloses a kind of Map Service of Network delivery system, comprise server end and client,
Described server end comprises:
Cache module, for creating tile map resource at server end, writes tile cached configuration file, and definition memory module is the loose buffer memory of mixed type, to being positioned at the tile application jpeg format at buffer area middle part, to the tile application PNG form of buffer area periphery;
Data configuration module, for the tile title suffix of generation is modified as to PNG with unified definition data type, and the tile format parameter of revising in tile cached configuration file is PNG;
Release module, for issuing Map Services, provides TMS and WMTS access interface to client;
Described client is used for accessing Map Services, and the Map Services of giving tacit consent to described issue when conducting interviews is TMS or the WMTS service of PNG form.
Preferably, described cache module is used for utilizing the map slice tools such as ArcGIS Server, MapTiler or Global Mapper to generate the loose buffer memory of mixed type.
Preferably, described data configuration module is for being directly modified as PNG by batch processing method by the title suffix of the tile that adopts root directory mode to organize.
Preferably, described data configuration module is compatible mutually for map release processs such as the parameters of revising tile cached configuration file and GeoWebCache, ArcGIS Server or MapServer, comprises the directory name of expression engineer's scale level is revised as to hexadecimal value.
Preferably, described release module is for issuing Map Services by map release processs such as GeoWebCache, ArcGIS Server or MapServer, when the map release processs such as GeoWebCache, ArcGIS Server or MapServer are intercepted and captured after user's request of access, the map tile that described cache module is created is defaulted as PNG form, and plays up to client.
Compared with prior art, the present invention uses hybrid slicing technology, for high-resolution image data, generate the loose buffer memory of mixed type, the mixing tile that hybrid slicing technology is produced issues into Map Services and externally TMS and WMTS interface service merge, for user provides a kind of PNG/JPEG blended data service solution, make full use of the advantage of PNG and JPEG, make the mixing tile of high resolution image in internet, by TMS and WMTS interface, obtain fast access, and buffer area periphery tile also can well show during with the stack of other map resource.
Accompanying drawing explanation
The realization flow schematic diagram of the Map Service of Network dissemination method that accompanying drawing 1 is an embodiment of the present invention;
The formation block diagram of the Map Service of Network delivery system that accompanying drawing 2 is an embodiment of the present invention.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with drawings and Examples, the invention will be further described.
A kind of Map Service of Network dissemination method, its step comprises:
S1, at server end, create tile map resource, write tile cached configuration file conf.xml, definition memory module is the loose buffer memory of mixed type, to being positioned at the tile application jpeg format at buffer area middle part, to the tile application PNG form of buffer area periphery;
S2, the tile title suffix of generation is modified as to PNG with unified definition data type, and the tile format parameter of revising in tile cached configuration file is PNG;
S3, issue Map Services, provide TMS and WMTS access interface to client, and the Map Services of giving tacit consent to described issue when described client conducts interviews is TMS or the WMTS service of PNG form.
In step S1, utilize the map slice tools such as ArcGIS Server, MapTiler or Global Mapper to generate the loose buffer memory of mixed type; In this enforcement, map slice tool is preferentially selected ArcGIS Server.In order to improve the response speed of Map Services, generate in advance the map tile of serial displaying ratio chi, generating cache(is cache memory), also claim cache map, the picture that by certain rule, the map under each displaying ratio chi is divided into certain size and form, these image caches are exactly tile.It map, Google Maps, high moral map and Baidu's map etc. have all used map tile technology.Tile for the PNG form of high-resolution image takes up room larger, and the tile of jpeg format can not meet the transparent demand of image when stack edge tile, for these two kinds of defects, propose a kind of in conjunction with hybrid slicing technology, making the image periphery tile form generating is PNG, in edge tile, only have partial image data, in the middle of the image of generation, tile form is JPEG, is all image data in middle tile.This technology can realize, such as the loose buffer memory of mixed type generating at map slice tools such as ArcGIS Server.Hybrid slicing is by the tile pyramid of image, and buffer area periphery tile is used PNG form, and in the middle of buffer area, tile is used JPEG tile, can make full use of like this advantage of PNG and JPEG.
In step S2, directly by batch processing method, the title suffix of the tile that adopts root directory mode to organize is modified as to PNG.Use the map slice tools such as ArcGIS Server to generate after the loose buffer memory of mixed type, map tile in buffer memory is to adopt file directory mode to organize, the suffix that therefore can directly use batch processing to carry out tile title is revised, can be by writing operation code, operation code is saved as to batch processing document, then put into and mix the root directory of tile and move this batch processing document.Such as, under win7 system, can use batch processing, its operation code can be:
In step S2, revise the map release process compatibilities mutually such as parameters in tile cached configuration file and GeoWebCache, ArcGIS Server or MapServer, comprise the directory name that represents engineer's scale level is revised as to hexadecimal value, in this enforcement, map release process is preferentially selected GeoWebCache, and the map release process in the present invention all describes in detail take GeoWebCache as specific embodiment.GeoWebCache (GWC) is one and adopts Java to realize for buffer memory WMS(Web Map Service) project of increasing income of Tile, when new map of map client-requested and Tile, by interception, these call the Tiles that then return cache is crossed to GeoWebCache, if can not find the buffer memory Tiles on invoking server again, through playing up and data cached picture after be plotted to client, thereby improve the speed of map shows.The tile format parameter in tile cached configuration file is revised as to PNG, and the directory name that represents engineer's scale level in buffer memory is changed into after corresponding hexadecimal value by decimal value, just can use GeoWebCache to issue the Map Services of described buffer memory.
In step S3, by map release process issue Map Services such as GeoWebCache, when GeoWebCache intercepts and captures after user's request of access, the map tile that described step S1 is created is defaulted as PNG form, and plays up to client.After issue, GeoWebCache externally provides TMS and WMTS interface for user, to access the tile of Map Services the Map Services of issue automatically simultaneously, make the mixing tile of high resolution image in internet, by TMS and WMTS interface, obtain fast access, and during with other map resource stack, periphery tile also can well show, for user provides a kind of PNG/JPEG blended data service solution, the TMS of hybrid slicing technology and internet map and WMTS interface accessing technology are combined to utilization well.
WMTS, is the abbreviation of OpenGIS Web Map Tile Service, can be translated as slice map Web service.TMS is the abbreviation of tile map service, is a kind of tile Map Services equally.TMS comes from OSGeo, and WMTS comes from OGC, and both difference is mainly agreement, tile organizational form.TMS is pure RESTful agreement; And WMTS can support three kinds of agreement: KVP, SOAP, RESTful.For tile organizational form: TMS tile is foursquare, and WMTS tile is rectangle; Both are contrary on y direction; Different scale tile corresponding in WMTS can size difference.
When client conducts interviews, TMS and the WMTS service access that can as common tile form, be PNG by the Map Services of issue.Such as, by TMS interface, can use following form to visit the mixing tile of Map Services: http: // servername/geowebcache/service/tms/1.0.0/layername/z/x/y .png; By WMTS interface, can use following form to visit the mixing tile of Map Services: http://servername/geowebcache/service/wmts request=GetTile & layer=layername & style=_null & tilematrixset=tilematrixsetname & tilematrix=tilematrixsetname:z & tilerow=row & tilecol=col & format=image/png.
Particularly, as shown in Figure 1, the present invention also provides the realization flow of the Map Service of Network dissemination method of a kind of embodiment, and its step comprises:
S001, utilize hybrid slicing technology to carry out slicing treatment to high resolution image, generating buffer area middle part is jpeg format tile, and buffer area periphery is the mixing tile of PNG form tile;
S002, write tile cached configuration file conf.xml, definition memory module is the loose buffer memory of mixed type;
S003, the tile title suffix of generation is modified as to PNG, the mixing tile after being improved;
S004, the tile format parameter of revising in tile cached configuration file are PNG, revise and represent that the directory name of engineer's scale level is revised as hexadecimal value;
S005, by the map release process such as GeoWebCache issue Map Services, to client, provide TMS and WMTS access interface;
The Map Services of S006, client default publications is TMS or the WMTS service of PNG form, conducts interviews.
The invention also discloses a kind of Map Service of Network delivery system, as shown in Figure 2, comprise server end 21 and client 22, described server end 21 comprises:
Described client 22 is for accessing Map Services, and the Map Services of giving tacit consent to described issue when conducting interviews is TMS or the WMTS service of PNG form.
Preferably, described cache module 211 is for utilizing the map slice tools such as ArcGIS Server, MapTiler or Global Mapper to generate the loose buffer memory of mixed type.
Preferably, described data configuration module 212 is for being directly modified as PNG by batch processing method by the title suffix of the tile that adopts root directory mode to organize.Use the map slice tools such as ArcGIS Server to generate after the loose buffer memory of mixed type, map tile in buffer memory is to adopt file directory mode to organize, the suffix that therefore can directly use batch processing to carry out tile title is revised, can be by writing operation code, operation code is saved as to batch processing document, then put into and mix the root directory of tile and move this batch processing document.
Preferably, described data configuration module 212 is compatible mutually for map release processs such as the parameters of revising tile cached configuration file and GeoWebCache, ArcGIS Server or MapServer, comprises the directory name that represents engineer's scale level is revised as to hexadecimal value.The tile format parameter in tile cached configuration file is revised as to PNG, and the directory name that represents engineer's scale level in buffer memory is changed into after corresponding hexadecimal value by decimal value, just can use the map release processs such as GeoWebCache, ArcGIS Server or MapServer to issue the Map Services of described buffer memory.
Preferably, described release module 213 is for issuing Map Services by map release processs such as GeoWebCache, when GeoWebCache intercepts and captures after user's request of access, the map tile that described cache module is created is defaulted as PNG form, and plays up to client.After issue, GeoWebCache externally provides TMS and WMTS interface for user, to access the tile of Map Services the Map Services of issue automatically simultaneously, make the mixing tile of high resolution image in internet, by TMS and WMTS interface, obtain fast access, and during with other map resource stack, periphery tile also can well show, for user provides a kind of PNG/JPEG blended data service solution, the TMS of hybrid slicing technology and internet map and WMTS interface accessing technology are combined to utilization well.
Above content is in conjunction with concrete optimal way further description made for the present invention, should not assert that specific embodiment of the invention is confined to above explanation.For those skilled in the art, without departing from the inventive concept of the premise, can also make some simple deduction or replace, within the definite protection domain of the claim that all should be considered as being submitted to by the present invention.
Claims (10)
1. a Map Service of Network dissemination method, its step comprises:
S1, at server end, create tile map resource, write tile cached configuration file, definition memory module is the loose buffer memory of mixed type, to being positioned at the tile application jpeg format at buffer area middle part, to the tile application PNG form of buffer area periphery;
S2, the tile title suffix of generation is modified as to PNG with unified definition data type, and the tile format parameter of revising in tile cached configuration file is PNG;
S3, issue Map Services, provide TMS and WMTS access interface to client, and the Map Services of giving tacit consent to described issue when described client conducts interviews is TMS or the WMTS service of PNG form.
2. Map Service of Network dissemination method according to claim 1, is characterized in that: in step S1, utilize corresponding map slice tool to generate the loose buffer memory of mixed type.
3. Map Service of Network dissemination method according to claim 2, is characterized in that: in step S2, directly by batch processing method, the title suffix of the tile that adopts root directory mode to organize is modified as to PNG.
4. Map Service of Network dissemination method according to claim 3, it is characterized in that, in step S2, revise parameters and corresponding map release process compatibility mutually in tile cached configuration file, comprise the directory name that represents engineer's scale level is revised as to hexadecimal value.
5. Map Service of Network dissemination method according to claim 4, it is characterized in that: in step S3, by corresponding map release process issue Map Services, when map release process is intercepted and captured after user's request of access, the map tile that described step S1 is created is defaulted as PNG form, and plays up to client.
6. a Map Service of Network delivery system, comprises server end and client, it is characterized in that,
Described server end comprises:
Cache module, for creating tile map resource at server end, writes tile cached configuration file, and definition memory module is the loose buffer memory of mixed type, to being positioned at the tile application jpeg format at buffer area middle part, to the tile application PNG form of buffer area periphery;
Data configuration module, for the tile title suffix of generation is modified as to PNG with unified definition data type, and the tile format parameter of revising in tile cached configuration file is PNG;
Release module, for issuing Map Services, provides TMS and WMTS access interface to client;
Described client is used for accessing Map Services, and the Map Services of giving tacit consent to described issue when conducting interviews is TMS or the WMTS service of PNG form.
7. Map Service of Network delivery system according to claim 6, is characterized in that: described cache module is used for utilizing corresponding map slice tool to generate the loose buffer memory of mixed type.
8. Map Service of Network delivery system according to claim 7, is characterized in that: described data configuration module is for being directly modified as PNG by batch processing method by the title suffix of the tile that adopts root directory mode to organize.
9. Map Service of Network delivery system according to claim 8, it is characterized in that, described data configuration module, for revising the parameters and corresponding map release process compatibility mutually of tile cached configuration file, comprises the directory name that represents engineer's scale level is revised as to hexadecimal value.
10. Map Service of Network delivery system according to claim 9, it is characterized in that: described release module is for issuing Map Services by corresponding map release process, when map release process is intercepted and captured after user's request of access, the map tile that described cache module is created is defaulted as PNG form, and plays up to client.
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| CN104156482A (en) * | 2014-08-26 | 2014-11-19 | 天津市普迅电力信息技术有限公司 | Map tile data publishing method |
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| CN109299019A (en) * | 2018-08-15 | 2019-02-01 | 福建联迪商用设备有限公司 | A kind of method and terminal for generating buffer zone and caching key assignments |
| CN109783595A (en) * | 2019-01-10 | 2019-05-21 | 苏州工业园区测绘地理信息有限公司 | A kind of routing of loose type slice map service and distribution method |
| CN110555119A (en) * | 2019-08-27 | 2019-12-10 | 成都数之联科技有限公司 | Unmanned aerial vehicle remote sensing image slicing method and system under real-time scene |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104156482A (en) * | 2014-08-26 | 2014-11-19 | 天津市普迅电力信息技术有限公司 | Map tile data publishing method |
| CN105608191A (en) * | 2015-12-23 | 2016-05-25 | 云南电网有限责任公司 | EnersunWebCache based method for dynamically generating cached power grid map tiles |
| CN109299019A (en) * | 2018-08-15 | 2019-02-01 | 福建联迪商用设备有限公司 | A kind of method and terminal for generating buffer zone and caching key assignments |
| CN109783595A (en) * | 2019-01-10 | 2019-05-21 | 苏州工业园区测绘地理信息有限公司 | A kind of routing of loose type slice map service and distribution method |
| CN110555119A (en) * | 2019-08-27 | 2019-12-10 | 成都数之联科技有限公司 | Unmanned aerial vehicle remote sensing image slicing method and system under real-time scene |
| CN110555119B (en) * | 2019-08-27 | 2022-05-13 | 成都数之联科技股份有限公司 | Unmanned aerial vehicle remote sensing image slicing method and system under real-time scene |
| CN111459934B (en) * | 2020-03-19 | 2023-09-22 | 北京图创时代科技有限公司武汉分公司 | Multi-source map data slicing system and method |
| CN111459934A (en) * | 2020-03-19 | 2020-07-28 | 北京图创时代科技有限公司武汉分公司 | Multi-source map data slicing system and method |
| CN111681294A (en) * | 2020-05-07 | 2020-09-18 | 天津市测绘院 | Network tile map high-performance rendering method and system based on edge calculation |
| CN111681294B (en) * | 2020-05-07 | 2023-06-13 | 天津市测绘院有限公司 | Network tile map high-performance rendering method and system based on edge calculation |
| CN114625992B (en) * | 2022-03-14 | 2022-11-22 | 国家气象信息中心(中国气象局气象数据中心) | Visualization method and system for hundred-megawatt meteorological network data |
| CN114625992A (en) * | 2022-03-14 | 2022-06-14 | 国家气象信息中心(中国气象局气象数据中心) | Visualization method and system for hundred-megametric meteorological network data |
| CN116578584A (en) * | 2023-07-13 | 2023-08-11 | 北京地林伟业科技股份有限公司 | Method and system for publishing billion-level element thematic map on large scale |
| CN116578584B (en) * | 2023-07-13 | 2023-09-15 | 北京地林伟业科技股份有限公司 | Method and system for publishing billion-level element thematic map on large scale |
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