CN101706809B - Method, device and system for processing multi-source map data - Google Patents
Method, device and system for processing multi-source map data Download PDFInfo
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Abstract
The invention provides a method, a device and a system for processing multi-source map data. The method comprises the following steps of: selecting a data reading interface corresponding to a geographic information data source interface format from a multi-source map data processing system and reading geographic information data from the geographic information data source according to the information reading interface; carrying out layering operation on the geographic information data according to preset image layer classification to obtain geographic information layered data; unifying a coordinate system; and loading and presenting the geographic information layered data on a map in an image layer form. The business operation request of a user is detected by the layer port and is transmitted to the dispatching center, and the dispatching center dispatches corresponding layer port of the layer to perform the business operation. The scheme can synthesize various types of data provided by all manufacturers, display the data in an optimal way and solve the problem of unshared different data source data on an application platform due to different formats and interfaces of the geographic information data provided by different manufacturers.
Description
Technical field
The present invention relates to the geographic information system technology field, particularly relate to a kind of multi-source map data processing method, device and system.
Background technology
GIS-Geographic Information System (GIS; Geographic Information Systems) be that fusion computer graphical and database are in one; Be used for storing and handling the new and high technology of spatial information; It organically combines geographic position and association attributes, with spatial information and attribute information is accurately true, both pictures and texts are excellent exports to the user, satisfies town and country construction, business administration, the resident living requirement to spatial information according to user's needs; By its exclusive spatial analysis functions and visual expressive function, carry out various aid decision makings.At present; GIS is just walking out traditional field such as mapping, drawing, resource and environmental management; Be deep into different social sectors day by day, begin gradually and the ordinary populace intimate contact, therefore; A lot of GIS Information Provider and service provider have occurred, services such as map search, environmental monitoring, calamity emergency response, Public Transport Transfer, satellite navigation, travel information are provided for the user.
Each GIS production firm or to serve the field that manufacturer pays close attention to different, so geographic information data style, advantage, method of service that each manufacturer provides are all inequality.Adopt superelevation image compress technique like Google Earth (Google Earth); Several data can be provided in real time; Local search and satellite image are combined, let the user browse the satellite image in any one place in the global range and the 3-D view of buildings or landform; The three-dimensional map location technology that it provides can let the user on three-dimensional map, check the specific region through interactive mode fixed point, carry out different visual angles amplification, dwindle, map control such as roaming and automatically searching route accomplish the road guide operation; But Google Earth does not possess data acquisition and the editting function of GIS, does not possess drawing, space querying and the spatial analysis functions of GIS.And the GIS manufacturer of specialty like spirit figure UU, can provide map vector and grating map, and various thematic mapss can be provided according to user's demand layering, also can obtain some special geoanalysis with figure, like slope map, aspect figure, sectional view etc. through spatial analysis; In addition, spirit figure UU also can provide GIS space querying and spatial analysis functions, comprises the foundation, terrain analysis of manifold inquiry, buffer zone analysis, stacked analysis, spatial aggregation analysis, geoanalysis, digital elevation model etc.; But the available satellite image information of spirit figure UU is few relatively, to three-dimensional map localization process ability also relatively a little less than.
But GIS production firm or serve the data layout in manufacturer geographic information data source, the interface that provides is all inequality; Even the geographic information data factor of same manufacturers produce is according to the difference of kind; Some independently interfaces also are provided; Therefore, in existing GIS application system, can only select a GIS manufacturer and geographic information data source and interface standard according to concrete application need; And according to specific data layout of this data source and the own system architecture of interface standard design, the comprehensively advantage of each GIS manufacturer and the data in a plurality of geographic information datas of concentrated use source.
Summary of the invention
Technical matters to be solved by this invention provides a kind of multi-source map data processing method; Can merge geographic information data from the different pieces of information source; And layering is presented on the graphic terminal, solves the different problems that can not on an application platform, share the different pieces of information source data with interface of form of the geographic information data that provides because of different vendor.
The present invention also provides a kind of multi-source map data processing equipment and system, to guarantee the application of said method in reality.
In order to address the above problem; The invention discloses a kind of multi-source map data processing method; Comprise: comprising: from the multi-source map data handling system, select and the corresponding data fetch interface of geographic information data source interface form, and read geographic information data from the geographic information data source according to this data fetch interface; Figure layer classification by preset carried out hierarchical operations with geographic information data, obtains the geography information individual-layer data; Whether the coordinate system of judging the geographic information data source is identical with the coordinate system of multi-source map data handling system, if not, then converts above-mentioned geography information individual-layer data under the coordinate system of multi-source map data handling system data; Form to scheme layer loads on map and represents above-mentioned geography information individual-layer data; The figure layer interface of multi-source map data handling system is passed to the dispatching center with the business operation request after detecting user's business operation request; The figure layer interface of dispatching center's scheduling corresponding figures layer is carried out above-mentioned business operation.
Preferably, that above-mentioned business operation comprises is mobile, rotation, convergent-divergent, mark, inquiry, the figure layer is closed and/or scheme layer open, and the figure layer of carrying out above-mentioned business operation comprises one or more figure layers.
Preferably, loads on map with the form of scheming layer and represent said geography information individual-layer data step and also comprise before: will merge from different pieces of information source and the identical individual-layer data of classification.
Preferably, above-mentioned preset figure layer classification comprises that traffic route layer, construction level, greening layer, water system layer and/or user draw line layer; The coordinate system of above-mentioned multi-source map data handling system is an initial point with tellurian zero longitude and latitude, northwards is positive y direction, is eastwards positive x direction.
According to another preferred embodiment of the present invention; A kind of multi-source map data processing equipment is also disclosed; Comprise data source interface library, data acquisition module, data conversion module, figure layer interface module and dispatching center's module, wherein: the data source interface library is preserved the data fetch interface of the one or more interface format of data source according to the map definition; Data acquisition module is used for selecting corresponding data fetch interface from the data source interface library, and, read geographic information data according to above-mentioned data fetch interface from the geographic information data source; Data conversion module is used for by preset figure layer classification the geographic information data that data acquisition module obtains being carried out hierarchical operations; Obtain the geography information individual-layer data; And; Whether the coordinate system of judging above-mentioned geography information individual-layer data is identical with the coordinate system of multi-source map data handling system, if not, then converts this geography information individual-layer data under the coordinate system of multi-source map data handling system data; The geography information individual-layer data composition diagram layer that figure layer interface module is used for data conversion module is obtained represents on map, and, detect user's business operation request, and this business operation request is passed to said dispatching center module; Dispatching center's module is used for the business operation request that the analysis user interface module is transmitted; Select corresponding figure layer and scheduling graph layer interface module to carry out above-mentioned business operation at this figure layer; And the data dispatching acquisition module reads geographic information data from the geographic information data source.
Preferably; The multi-source map data processing equipment comprises that also the figure layer merges module, this figure layer merging module be used for from the different pieces of information source but the identical individual-layer data of classification merge, wherein; As if identical, then keep the individual-layer data of arbitrary data source from the individual-layer data information in different pieces of information source; Otherwise, select relevant individual-layer data by preset rule selection or prompting user.
According to another preferred embodiment of the present invention; A kind of multi-source map data handling system is also disclosed; This system comprises geographic information data source server and multi-source map data processing equipment: the geographic information data source server specifically comprises geographic information database and geographic information data interface; Above-mentioned geographic information database is used to store geographic information data, and the geographic information data interface is used to the multi-source map data processing equipment interface that reads geographic information data is provided; The multi-source map data processing equipment specifically comprises data source interface library, data acquisition module, data conversion module, figure layer interface module and dispatching center's module, and above-mentioned data source interface library is preserved the data fetch interface of the one or more interface format of data source according to the map definition; Data acquisition module is used for selecting corresponding data fetch interface from the data source interface library, and from geographic information database, reads geographic information data according to the geographic information data interface of above-mentioned data fetch interface through the geographic information data source server; Data conversion module is used for by preset figure layer classification the geographic information data that data acquisition module obtains being carried out hierarchical operations; Obtain the geography information individual-layer data; And whether the coordinate system of judging the geography information individual-layer data is identical with the coordinate system of said multi-source map data handling system; If not, then convert this geography information individual-layer data under the multi-source map data handling system coordinate system data; The geography information individual-layer data composition diagram layer that figure layer interface module is used for data conversion module is obtained represents on map.And, detect user's business operation request, and said business operation request is passed to said dispatching center module; Dispatching center's module is used for the business operation request that analysis chart layer interface module is transmitted; Select corresponding figure layer and scheduling graph layer interface module to carry out above-mentioned business operation at this figure layer; And the data dispatching acquisition module reads geographic information data from the geographic information data source.
According to an also preferred embodiment of the present invention; A kind of multi-source map data handling system is disclosed; Comprise geographic information data source server, multi-source map data processing equipment and graphic terminal; Wherein: said geographic information data source server comprises geographic information database and geographic information data interface, and said geographic information database is used to store geographic information data; Said geographic information data interface is used to said multi-source map data processing equipment the interface that reads geographic information data is provided; Said multi-source map data processing equipment comprises data source interface library, data acquisition module, data conversion module and dispatching center's module, and said data source interface library is preserved the data fetch interface of the one or more interface format of data source according to the map definition; Said data acquisition module is used for selecting corresponding data fetch interface from said data source interface library, and from geographic information database, reads geographic information data according to the geographic information data interface of above-mentioned data fetch interface through said geographic information data source server; Said data conversion module is used for by preset figure layer classification the geographic information data that said data acquisition module obtains being carried out hierarchical operations; Obtain the geography information individual-layer data; And whether the coordinate system of judging said geography information individual-layer data is identical with the coordinate system of said multi-source map data handling system; If not, then convert this geography information individual-layer data under the said multi-source map data handling system coordinate system data; Said dispatching center module is used to analyze the business operation request that the figure layer interface module of said graphic terminal is transmitted; The corresponding figure layer of selection is also dispatched said figure layer interface module at the said business operation of this figure layer execution; And, dispatch said data acquisition module and read geographic information data from the geographic information data source; Said graphic terminal includes figure layer interface module, and the geography information individual-layer data composition diagram layer that said figure layer interface module is used for said data conversion module is obtained represents on map.And, detect user's business operation request, and said business operation request is passed to said dispatching center module.
Preferably; The multi-source map data processing equipment comprises that also the figure layer merges module, this figure layer merging module be used for from the different pieces of information source but the identical individual-layer data of classification merge, wherein; As if identical, then keep the individual-layer data of arbitrary data source from the individual-layer data information in different pieces of information source; Otherwise, select relevant individual-layer data by preset rule selection or prompting user.
Compared with prior art, the present invention has the following advantages:
Very abundant of geographic information data; Comprise various types of information, and As time goes on, also can produce various new information; The data of all big enterprises' production simultaneously respectively have advantage to have their own characteristics each; The present invention program can cope with shifting events by sticking to a fundamental principle through the GIS data that matched data interface, unified coordinate system and laminated tissue obtain, comprehensively the various types of data of each manufacturer; Mode with optimum shows, and solves the form and/or the different problems that can not on an application platform, share the different pieces of information source data of interface of the geographic information data that provides because of different vendor.
Description of drawings
Fig. 1 is the multi-source map data processing method first embodiment process flow diagram of the present invention;
Fig. 2 is the multi-source map data processing method second example structure block diagram of the present invention;
Fig. 3 is multi-source map data processing equipment one an example structure block diagram of the present invention;
Fig. 4 is the multi-source map data handling system first example structure block diagram of the present invention;
Fig. 5 is the multi-source map data handling system second example structure block diagram of the present invention.
Embodiment
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, below in conjunction with accompanying drawing and embodiment the present invention done further detailed explanation.
With reference to Fig. 1, show the multi-source map data processing method first embodiment process flow diagram of the present invention, specifically may further comprise the steps:
Step 101: the data fetch interface of selecting geographical information data source;
Each big GIS manufacturer all is that the geographic information database of oneself provides interface; Interface format has nothing in common with each other; For realizing reading geographic information data from different data sources; Be every kind of a kind of specific interface format of GIS data source definitions in the multi-source map data handling system, before reading geographic information data, at first select specific interface according to the GIS data source from the GIS data source.
Step 102: the mode that reads interface definition according to above-mentioned data reads geographic information data from the geographic information data source;
Step 103: the figure layer classification by preset carried out hierarchical operations with above-mentioned geographic information data, obtains the geography information individual-layer data;
For more convenient tissue with merge geographic information data from different GIS data sources, the data from the GIS data source are divided into the data Layer that native system oneself defines, draw line layer or the like like traffic route layer, construction level, greening layer, water system layer, user.
Step 104: unified coordinate system;
Different GIS manufacturers maybe be different to the definition of coordinate system, as, the coordinate system of the manufacturer that has is an initial point with tellurian 1 longitude and latitude point, northwards is positive y direction, is eastwards positive x direction; The coordinate system of the manufacturer that has is an initial point with zero latitude east longitude, 180 degree, northwards is positive y direction, is eastwards positive x direction.For in a system, representing, must coordinate system be unified, be reference coordinate system with a fixing coordinate system, change the individual-layer data different with reference coordinate system.
In the present embodiment, be initial point with tellurian zero longitude and latitude, northwards be positive y direction, be eastwards positive x direction.
Step 105: the geography information individual-layer data after the above-mentioned unified coordinate system is loaded on map and represents with the form of scheming layer.
When loading geography information individual-layer data represents the figure layer, can successively load by the predefined order of system is bottom-up, also can load by user-defined order.
In another preferred embodiment of present embodiment; Loading each individual-layer data composition diagram layer in the multi-source map data handling system when on map, representing; If two individual-layer data classifications identical (like the water system layer of first data source and the water system layer of second data source) from the different pieces of information source; Then these two figure layers are merged into one, handle, and make the figure layer that shows standard, attractive in appearance more so that simplify.
The figure layer merges can adopt following method:
If two figure layer data information are identical, then keep figure layer data wherein, as keeping data from first data source from any data source; If two figure layer data information are inequality, can adopt in following two kinds of schemes:
Scheme one: obtain the generation or the update time of two data sources through corresponding data source fetch interface with it, reservation generation or update time and immediate figure layer data of current time after relatively; If the generation of two data sources or update time are also identical, then point out the user the manual figure layer data of selecting reservation from which data source; Certainly, generate or situation that update time is identical under, also can select figure layer data automatically by user's configuration in advance from first data source or second data source;
Scheme two: the manual information of selecting reservation from which data source of prompting user.
Consider the situation that as far as possible reduces amount of user effort, preferably adopt above-mentioned the first string.
With reference to Fig. 2, show the multi-source map data processing method second embodiment flow process of the present invention, specifically comprise:
Step 201: select the data fetch interface of geographical information data source, read geographic information data;
Step 202: above-mentioned geographic information data is carried out hierarchical operations, and the geography information individual-layer data unified coordinate system to obtaining;
Step 203: represent above-mentioned geography information individual-layer data to scheme the loading of layer form;
Does step 204: detecting the user have the business operation request? If then change step 205; Otherwise, the detection deterministic process of circulation execution in step 204;
Based on visual figure layer definition user interface; Let the figure layer interface accomplish the incident listening functions; Obtain business operation requests such as the moving of user, rotation, convergent-divergent, mark, inquiry, figure layer open/close, can make to strengthen user's experience by the more convenient to operate, direct of user;
Step 205: above-mentioned business operation request is passed to the dispatching center;
Step 206: the dispatching center selects the interface of corresponding figures layer to carry out above-mentioned business operation.
After the dispatching center received user's business operation request, itself did not carry out concrete business operation, but select, the scheduling graph layer interface carries out at suitable figure layer; In addition, the figure layer that relates to above-mentioned business operation possibly have only a figure layer, also has a plurality of figure layers, as, when the user's modification itinerary, only need draw the circuit layer operation and get final product the user; When the user needed convergent-divergent figure layer, all figure layers all should be carried out zoom operations together.
The interface of any one figure layer is received after user's the business operation request can own immediately processing; But be reported to the dispatching center, and let the dispatching center that grasps more information decide on earth to employ which resource, command the interface of suitable figure layer to carry out the corresponding business operation; On the one hand; Can make system have better modular construction, be easy to management, and can expand the systemic-function and the scope of business easily; On the other hand, utilize the figure layer be more suitable for handling corresponding operating to carry out the corresponding business operation, can give full play to advantage, the treatment effeciency of system and effect are further enhanced from each figure layer in different pieces of information source.
In addition; As required, the user can add, modification figure layer, can also be through reading geographic information data or read the data the data source that once read again from new data source to dispatching center's request; At this moment, the process that needs execution once more or repeated execution of steps 201～step 206.
With reference to Fig. 3, show multi-source map data processing equipment one example structure block diagram of the present invention, specifically comprise with lower unit:
Data source interface library 310: be used to preserve data fetch interface according to different source of map data interface format definition; The data fetch interface that data source interface library 310 is preserved can have one, also can have a plurality of;
Data acquisition module 311: be used for selecting corresponding data fetch interface, and read geographic information data from different geographic information data sources according to above-mentioned data fetch interface from data source interface library 310;
Data conversion module 312: be used for carrying out hierarchical operations, obtain the geography information individual-layer data by the geographic information data that data acquisition module 311 is exported in preset figure layer classification; And, the coordinate system of unified above-mentioned geography information individual-layer data;
Wherein, The method of unified coordinate system specifically can for: whether the coordinate system of judging above-mentioned geographic information data source identical with the coordinate system of multi-source map data handling system; If not, then convert above-mentioned geography information individual-layer data under the coordinate system of multi-source map data handling system data;
In device embodiment of the present invention, the figure layer of classification modes such as can drawing line layer by traffic route layer, construction level, greening layer, water system layer, user of classifying divided; The coordinate system of multi-source map data handling system is an initial point with tellurian 1 longitude and latitude point preferably, northwards is positive y direction, is eastwards positive x direction;
Figure layer interface module 313: be used for the geography information individual-layer data composition diagram layer of data conversion module 312 outputs is represented on map; And, detect user's business operation request, and above-mentioned business operation request is passed to dispatching center's module 314; In addition, carry out above-mentioned business operation according to the instruction of dispatching center's module 314 at corresponding figure layer;
Wherein, above-mentioned business operation specifically comprises mobile, rotation, convergent-divergent, mark, inquiry, figure layer open/close etc.;
Dispatching center's module 314: be used for the business operation request that analysis chart layer interface module 313 is transmitted, select suitable figure layer and scheduling graph layer interface module 313 to carry out this business operation at above-mentioned figure layer; In addition, according to the data read request that figure layer interface module 313 is transmitted, data dispatching acquisition module 311 reads geographic information data from the geographic information data source.
In another preferred embodiment of this device embodiment; Except that above-mentioned composition module; Comprise that also the figure layer merges module; This figure layer merges that module is used for data conversion module 312 outputs, from the different pieces of information source but the identical individual-layer data of classification merge, individual-layer data submission figure layer interface module 313 loadings after will merging then represent.
With reference to Fig. 4, show the multi-source map data handling system first example structure block diagram of the present invention, specifically comprise with lower device:
Multi-source map data processing equipment 31: be used for reading geographic information data from geographic information server 32, layering shows on map; And reception and analysis user are selected suitable professional execution graph layer then to the business operation request of map datum layer, and on this figure layer, carry out concrete business operation;
Geographic information server 32: be used to preserve geographic information data, and the geographic information data interface be provided for multi-source map data processing equipment 31.
Wherein, multi-source map data processing equipment 31 specifically comprises:
Data source interface library 310: be used to preserve data fetch interface according to different source of map data interface format definition; The data fetch interface that data source interface library 310 is preserved can have one, also can have a plurality of;
Data acquisition module 311: be used for selecting corresponding data fetch interface from data source interface library 310; And according to above-mentioned data fetch interface, the geographic information data interface 322 through geographic information data source server 32 reads geographic information data from geographic information database 321;
Data conversion module 312: be used for by preset figure layer classification, the geographic information data that data acquisition module 311 is exported carries out hierarchical operations, obtains the geography information individual-layer data; And, judge whether the coordinate system of geographic information database 321 is identical with the coordinate system of native system, if not, then convert above-mentioned geography information individual-layer data under the coordinate system of native system data;
Figure layer merges a module 315: be used for from the different pieces of information source but the identical individual-layer data of classification merge, the geography information individual-layer data submission figure layer interface module 313 after will merging then loads on map and represents;
Figure layer interface module 313: be used on map, loading and representing the geography information individual-layer data that figure layer merging module 315 is exported scheme layer mode; Or directly load and the geography information individual-layer data of demonstrating data modular converter 312 outputs; In addition, figure layer interface module 313 also is used to detect user's business operation request, and this business operation request is passed to dispatching center's module 314; And, the business operating instructions of receiving scheduling center module 314, and on the figure of above-mentioned business operating instructions appointment layer, carry out concrete business operation;
Dispatching center's module 314: be used to receive and business operation request that analysis chart layer interface module 313 is transmitted, select corresponding figure layer and scheduling graph layer interface module 313 to carry out a said business operation at this figure layer; Dispatching center's module 314 also is used for the data read request according to 313 transmission of figure layer interface module, and data dispatching acquisition module 311 reads geographic information data from geographic information server 32.
Geographic information database 321: be used to store geographic information data;
Geographic information data interface 322: the data acquisition module 311 that is used to multi-source map data processing equipment 31 provides the interface that reads geographic information data.
With reference to Fig. 5, show the multi-source map data handling system second example structure block diagram of the present invention, specifically comprise multi-source map data processing equipment 31, geographic information server 32 and graphic terminal 33:
Multi-source map data processing equipment 31: be used for reading geographic information data from geographic information server 32, layering shows on map; And reception and analysis user are selected suitable professional execution graph layer then through the business operation request to the map datum layer that graphic terminal 33 sends, and carry out the business of transmission to figure and execute instruction.
Wherein, multi-source map data processing equipment 31 specifically comprises: data source interface library 310, data acquisition module 311, data conversion module 312 and dispatching center's module 314:
Data source interface library 310 is used to preserve different source of map data data fetch interfaces;
The business operation request that dispatching center's module 314 is used to receive and transmit at analyzed pattern terminal 33 also selects corresponding figure layer to carry out above-mentioned business operation; And the data read request data dispatching acquisition module 311 that transmits according to graphic terminal 33 reads geographic information data from geographic information server 32.
Figure layer merges that module 315 is used for data conversion module 312 outputs, from the different pieces of information source but the identical individual-layer data of classification merge, the geography information individual-layer data submission graphic terminal 33 after will merging then loads on map and represents.
Geographic information server 32: be used to preserve geographic information data, and the geographic information data interface be provided for multi-source map data processing equipment 31; This geographic information server 32 specifically comprises: the data acquisition module 311 that is used to store the geographic information database 321 of geographic information data and be used to multi-source map data processing equipment 31 provides the geographic information data interface 322 that reads geographic information data.
Graphic terminal 33: specifically include figure layer interface module 333, be used to load, represent the geography information individual-layer data that multi-source map data processing equipment 31 obtains; And, receive and send the business operation request of users map datum to multi-source map data processing equipment 31; And, receive the business operating instructions of multi-source map data processing equipment 31, and on the figure of above-mentioned business operating instructions appointment layer, carry out concrete business operation.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For device of the present invention and system embodiment, because it is similar basically with method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than a kind of multi-source map data processing method provided by the present invention, device and system have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. a multi-source map data processing method is characterized in that, comprising:
From the multi-source map data handling system, select and the corresponding data fetch interface of geographic information data source interface form, and read geographic information data from said geographic information data source according to this data fetch interface;
Figure layer classification by preset carried out hierarchical operations with said geographic information data, obtains the geography information individual-layer data;
Whether the coordinate system of judging said geographic information data source is identical with the coordinate system of said multi-source map data handling system, if not, then converts said geography information individual-layer data under the coordinate system of said multi-source map data handling system data;
Form to scheme layer loads on map and represents said geography information individual-layer data;
After the figure layer interface of said multi-source map data handling system detects user's business operation request, said business operation request is passed to the dispatching center;
The figure layer interface of said dispatching center's scheduling corresponding figures layer is carried out said business operation.
2. the method for claim 1 is characterized in that, that said business operation comprises is mobile, rotation, convergent-divergent, mark, inquiry, the figure layer is closed and/or scheme layer open, and the figure layer of carrying out said business operation comprises one or more figure layers.
3. the method for claim 1 is characterized in that, said on map, the loading with the form of scheming layer represents said geography information individual-layer data step and also comprise before:
To merge from different pieces of information source and the identical individual-layer data of classification, wherein,, then keep the individual-layer data of arbitrary data source as if identical from the individual-layer data information in different pieces of information source; Otherwise, select relevant individual-layer data by preset rule selection or prompting user.
4. the method for claim 1 is characterized in that:
Said preset figure layer classification comprises that traffic route layer, construction level, greening layer, water system layer and/or user draw line layer;
The coordinate system of said multi-source map data handling system is an initial point with tellurian zero longitude and latitude, northwards is positive y direction, is eastwards positive x direction.
5. a multi-source map data processing equipment is characterized in that, said device comprises data source interface library, data acquisition module, data conversion module, figure layer interface module and dispatching center's module, wherein:
Said data source interface library is preserved the data fetch interface of the one or more interface format of data source according to the map definition;
Said data acquisition module is used for selecting corresponding data fetch interface from said data source interface library, and, read geographic information data according to above-mentioned data fetch interface from the geographic information data source;
Said data conversion module is used for by preset figure layer classification the geographic information data that said data acquisition module obtains being carried out hierarchical operations, obtains the geography information individual-layer data; And, judge whether the coordinate system of said geography information individual-layer data is identical with the coordinate system of multi-source map data handling system, if not, then convert this geography information individual-layer data under the coordinate system of said multi-source map data handling system data;
The geography information individual-layer data composition diagram layer that said figure layer interface module is used for said data conversion module is obtained represents on map, and, detect user's business operation request, and said business operation request is passed to said dispatching center module;
Said dispatching center module is used to analyze the business operation request that said Subscriber Interface Module SIM transmits, and the corresponding figure layer of selection is also dispatched said figure layer interface module at the said business operation of this figure layer execution; And, dispatch said data acquisition module and read geographic information data from the geographic information data source.
6. device as claimed in claim 5; It is characterized in that; Said device comprises that also the figure layer merges module, said figure layer merge module be used for from the different pieces of information source but the identical individual-layer data of classification merge, wherein; As if identical, then keep the individual-layer data of arbitrary data source from the individual-layer data information in different pieces of information source; Otherwise, select relevant individual-layer data by preset rule selection or prompting user.
7. a multi-source map data handling system is characterized in that, said system comprises geographic information data source server and multi-source map data processing equipment, wherein:
Said geographic information data source server comprises geographic information database and geographic information data interface, and said geographic information database is used to store geographic information data; Said geographic information data interface is used to said multi-source map data processing equipment the interface that reads geographic information data is provided;
Said multi-source map data processing equipment comprises data source interface library, data acquisition module, data conversion module, figure layer interface module and dispatching center's module, and said data source interface library is preserved the data fetch interface of the one or more interface format of data source according to the map definition; Said data acquisition module is used for selecting corresponding data fetch interface from said data source interface library, and from geographic information database, reads geographic information data according to the geographic information data interface of above-mentioned data fetch interface through said geographic information data source server; Said data conversion module is used for by preset figure layer classification the geographic information data that said data acquisition module obtains being carried out hierarchical operations; Obtain the geography information individual-layer data; And whether the coordinate system of judging said geography information individual-layer data is identical with the coordinate system of said multi-source map data handling system; If not, then convert this geography information individual-layer data under the said multi-source map data handling system coordinate system data; The geography information individual-layer data composition diagram layer that said figure layer interface module is used for said data conversion module is obtained represents on map, and, detect user's business operation request, and said business operation request is passed to said dispatching center module; Said dispatching center module is used to analyze the business operation request that said figure layer interface module is transmitted; The corresponding figure layer of selection is also dispatched said figure layer interface module at the said business operation of this figure layer execution; And, dispatch said data acquisition module and read geographic information data from the geographic information data source.
8. a multi-source map data handling system is characterized in that, said system comprises geographic information data source server, multi-source map data processing equipment and graphic terminal, wherein:
Said geographic information data source server comprises geographic information database and geographic information data interface, and said geographic information database is used to store geographic information data; Said geographic information data interface is used to said multi-source map data processing equipment the interface that reads geographic information data is provided;
Said multi-source map data processing equipment comprises data source interface library, data acquisition module, data conversion module and dispatching center's module, and said data source interface library is preserved the data fetch interface of the one or more interface format of data source according to the map definition; Said data acquisition module is used for selecting corresponding data fetch interface from said data source interface library, and from geographic information database, reads geographic information data according to the geographic information data interface of above-mentioned data fetch interface through said geographic information data source server; Said data conversion module is used for by preset figure layer classification the geographic information data that said data acquisition module obtains being carried out hierarchical operations; Obtain the geography information individual-layer data; And whether the coordinate system of judging said geography information individual-layer data is identical with the coordinate system of said multi-source map data handling system; If not, then convert this geography information individual-layer data under the said multi-source map data handling system coordinate system data; Said dispatching center module is used to analyze the business operation request that the figure layer interface module of said graphic terminal is transmitted; The corresponding figure layer of selection is also dispatched said figure layer interface module at the said business operation of this figure layer execution; And, dispatch said data acquisition module and read geographic information data from the geographic information data source;
Said graphic terminal includes figure layer interface module, and the geography information individual-layer data composition diagram layer that said figure layer interface module is used for said data conversion module is obtained represents on map.And, detect user's business operation request, and said business operation request is passed to said dispatching center module.
9. like the described system in one of claim 7 or 8; It is characterized in that; Said multi-source map data processing equipment comprises that also the figure layer merges module, said figure layer merge module be used for from the different pieces of information source but the identical individual-layer data of classification merge, wherein; As if identical, then keep the individual-layer data of arbitrary data source from the individual-layer data information in different pieces of information source; Otherwise, select relevant individual-layer data by preset rule selection or prompting user.
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