CN106021592A - Online thematic map making system and method - Google Patents
Online thematic map making system and method Download PDFInfo
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- CN106021592A CN106021592A CN201610395699.5A CN201610395699A CN106021592A CN 106021592 A CN106021592 A CN 106021592A CN 201610395699 A CN201610395699 A CN 201610395699A CN 106021592 A CN106021592 A CN 106021592A
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- 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
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Abstract
The invention discloses an online thematic map making system and method. The system comprises a server side and a client side. The server side comprises a thematic map symbol drawing engine module, a network map service module, a network thematic map service module and a network legend service module. The client side calls the network map service module, the network thematic map service module and the network legend service module in a browser in a service chain combination mode, and automatically establishes a network thematic map. By means of the online thematic map making system and method, the types of statistical symbols are enriched, and a symbolic library is maintained conveniently; the calculation burden of a server is relieved, the response time is shortened, and the user experience is improved.
Description
Technical field
The invention belongs to geographic information system technology field, particularly relate to a kind of lightweight online making thematic map system and method.
Background technology
Starting to introduce GIS technology at present in a lot of Urban Real Estate informationizations, in GIS field, OGC defines a series of Map Service of Network standard, such as WMS, WPS etc..WPS supports processed by client call GIS and return data.Mostly existing WPS is to process function, still not for the WPS service of making thematic map process based on simple GIS.In terms of map statistics, making all kinds of thematic map under current most of network environments has lightweight thematic charting and conventional two kinds of approach of thematic charting.The former builds symbolic library at server end, draws thematic maps, the thematic maps of generation is published to client；Requirement not too many to client, but limited by network condition, response time easily postpones.The latter typically requires client corresponding plug-in unit, such as Flash plug-in unit, SVG plug-in unit etc., directly generates thematic maps in client, to alleviate the burden of server end；But owing to symbol generates in client, it is not easy to symbolic library and builds maintenance.
Summary of the invention
The problem existed for network thematic map cartography, the present invention has supplied the online making thematic map system and method for a kind of lightweight.
The system of the present invention be the technical scheme is that a kind of online making thematic map system, it is characterised in that: include server end and client two parts；Described server end includes Mapping by Using Thematic Symbols in Raster Form engine modules, Map Service of Network module, network thematic map service module, network legend service module；Described client calls described Map Service of Network module, network thematic map service module and network legend service module in a browser by the way of service chaining combines, and automatically builds network thematic maps.
The method of the present invention be the technical scheme is that a kind of online making thematic map method, it is characterised in that comprises the following steps:
Step 1: extract statistical data index from thematic data base according to user's request, builds the thematic data stream of XML format, such as population, the commercial house average price etc.；
Step 2: Map Service of Network module provides geographical map service, described geographical map uses the network map that Fundamental Geographic Information Data is issued；
Step 3: the XML data structure built based on step 1, uses the Motor Mapping by Using Thematic Symbols in Raster Form drawing engines such as GDI+, and is encapsulated as network thematic map service module.
Step 4: network legend service module builds the network legend service of thematic map legend on the basis of the Mapping by Using Thematic Symbols in Raster Form drawing engine that step 3 is developed；
Step 5: described client is in a browser by the way of calling service profile information and sharing the implementation status serviced, drive and perform online thematic map service chaining, described service chaining includes Map Service of Network module, network thematic map service module and network legend service module, automatically builds network thematic maps.
The thematic map service interface of sing on web Service of the present invention, use the drafting method that lightweight thematic charting combines with conventional thematic charting, the lightweight thematic map implementation method proposed, builds statistic symbol library at server end by the map symbol engine of independent research according to business statistics index and generates statistical symbol data stream；Being serviced by GIS invocation map in client, and hierarchical statistics renders, superposition statistical symbol generates thematic maps.Meanwhile, the output of the service in succession run in service chaining maintains consistent with the data form inputted, it is ensured that service properly functioning.The two combines, and has both enriched statistical symbol type, it is simple to symbolic library is safeguarded；Also mitigating the computation burden of server, response time shortens, and adds Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is webservice service and the Services Composition schematic diagram of the embodiment of the present invention；
Fig. 2 is the house prosperity transaction data based on XML format of the embodiment of the present invention；
Fig. 3 is the Arcgis of the embodiment of the present invention
The Map Service of Network (WMS) that Server provides；
Fig. 4 is the thematic map service (WTS) of based on independent research the thematic chart drawing engine of the embodiment of the present invention；
Fig. 5 is network special topic legend service (WLS) of the embodiment of the present invention；
Fig. 6 is real-estate market Transaction Information statistics thematic maps (by administrative area) of the embodiment of the present invention；
Fig. 7 is real-estate market Transaction Information statistics thematic maps (by loop wire) of the embodiment of the present invention；
Fig. 8 is real-estate market Transaction Information statistics thematic maps (by focal plate) of the embodiment of the present invention.
Specific implementation method
Understand for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, should be appreciated that enforcement example described herein is merely to illustrate and explains the present invention, be not intended to limit the present invention.
Ask for an interview Fig. 1, basic thought of the present invention uses popular WebService service and Services Composition principle, this system is collectively constituted by client and server end, server end includes that Mapping by Using Thematic Symbols in Raster Form engine modules, Map Service of Network (WMS) module, network thematic map service (WTS) module, network legend service (WLS) module, by the way of service chaining combines, service call is carried out in client, use this system, the type of statistical symbol can be enriched, alleviate the computing pressure of server end, increase Consumer's Experience.
The present invention, with commercial residential buildings, Wuhan City supply and demand data as thematic data, uses the system method that carries out the thematic mapping being correlated with that the present invention provides, comprises the following steps:
Step 1: extract commercial residential buildings supply and demand data from thematic data base according to demand, builds the cartographic data source of XML format, such as Fig. 2；
Step 2: geographical map uses the Map Service of Network (WMS) that Wuhan City's house property Fundamental Geographic Information Data is issued, such as Fig. 3；
Step 3: the XML data structure built based on step 1, uses the technological development commercial residential buildings supply and demand data Mapping by Using Thematic Symbols in Raster Form drawing engines such as GDI+, and is encapsulated as network thematic map service (WTS), such as Fig. 4；
Step 4: build network legend service (WLS) of commercial residential buildings supply and demand data thematic map legend on the basis of Mapping by Using Thematic Symbols in Raster Form drawing engine, such as Fig. 5；
Step 5: in client by GIS invocation map Services Composition (WMS+WTS+WLS), and hierarchical statistics renders, superposition statistical symbol generates thematic maps.Commercial residential buildings, Wuhan City supply and demand statistical information based on Services Composition (WMS+MTS+MLS) online thematic maps effect such as Fig. 6-8, wherein Fig. 6 is the real-estate market Transaction Information statistics thematic maps obtained by administrative area, Fig. 7 is the real-estate market Transaction Information statistics thematic maps obtained by loop wire, and Fig. 8 is the real-estate market Transaction Information statistics thematic maps obtained by focal plate.
It should be appreciated that the part that this specification does not elaborates belongs to prior art.
Should be understood that; the above-mentioned description for preferred embodiment is the most detailed; therefore the restriction to scope of patent protection of the present invention can not be considered; those of ordinary skill in the art is under the enlightenment of the present invention; under the ambit protected without departing from the claims in the present invention; can also make replacement or deformation, within each falling within protection scope of the present invention, the scope that is claimed of the present invention should be as the criterion with claims.
Claims (2)
1. an online making thematic map system, it is characterised in that: include server end and client two parts；Described server end includes Map Service of Network module, network thematic map service module, network legend service module；Described client calls described Map Service of Network module, network thematic map service module and network legend service module in a browser by the way of service chaining combines, and automatically builds network thematic maps.
2. an online making thematic map method, it is characterised in that comprise the following steps:
Step 1: extract statistical data index from thematic data base according to user's request, builds the thematic data stream of XML format；
Step 2: Map Service of Network module provides geographical map service, described geographical map uses the network map that Fundamental Geographic Information Data is issued；
Step 3: the XML data structure built based on step 1, uses GDI+ Motor Mapping by Using Thematic Symbols in Raster Form drawing engine, and is encapsulated as network thematic map service module；
Step 4: network legend service module builds the network legend service of thematic map legend on the basis of the Mapping by Using Thematic Symbols in Raster Form drawing engine that step 3 is developed；
Step 5: client is in a browser by the way of calling service profile information and sharing the implementation status serviced, drive and perform online thematic map service chaining, described service chaining includes Map Service of Network module, network thematic map service module and network legend service module, automatically builds network thematic maps.
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| CN201610395699.5A CN106021592A (en) | 2016-06-06 | 2016-06-06 | Online thematic map making system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106850630A (en) * | 2017-02-10 | 2017-06-13 | 云南电网有限责任公司电力科学研究院 | A kind of CG lightning density figure Web generates system and method online |
| CN108052558A (en) * | 2017-11-30 | 2018-05-18 | 河南云保遥感科技有限公司 | A kind of natural calamity extraction decomposition method based on remote sensing technology |
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| CN101593456A (en) * | 2009-07-09 | 2009-12-02 | 浙江大学 | A kind of quick self-adaptive layout method of The Key to Maps |
| CN103093484A (en) * | 2013-01-05 | 2013-05-08 | 武汉中地数码科技有限公司 | Integrated batch drawing method of remote-sensing image and vector data |
| CN103390039A (en) * | 2013-07-17 | 2013-11-13 | 北京建筑工程学院 | Urban disaster thematic map real-time generating method based on network information |
| CN104008162A (en) * | 2014-05-28 | 2014-08-27 | 中国地质大学（北京） | Template based one-button type thematic map automatic forming method and system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101593456A (en) * | 2009-07-09 | 2009-12-02 | 浙江大学 | A kind of quick self-adaptive layout method of The Key to Maps |
| CN103093484A (en) * | 2013-01-05 | 2013-05-08 | 武汉中地数码科技有限公司 | Integrated batch drawing method of remote-sensing image and vector data |
| CN103390039A (en) * | 2013-07-17 | 2013-11-13 | 北京建筑工程学院 | Urban disaster thematic map real-time generating method based on network information |
| CN104008162A (en) * | 2014-05-28 | 2014-08-27 | 中国地质大学（北京） | Template based one-button type thematic map automatic forming method and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106850630A (en) * | 2017-02-10 | 2017-06-13 | 云南电网有限责任公司电力科学研究院 | A kind of CG lightning density figure Web generates system and method online |
| CN108052558A (en) * | 2017-11-30 | 2018-05-18 | 河南云保遥感科技有限公司 | A kind of natural calamity extraction decomposition method based on remote sensing technology |
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Application publication date: 20161012 |