CN115758440A - Gridding-based universal longitudinal regional authority control method - Google Patents

Abstract

The present invention is applicable to the technical field of GIS, and provides a grid-based global vertical region authority control method, including step S1, producing domain grid result data; step S2, using the domain grid result data to use a service release template and following the template Standardize, publish in the form of service address; step S3, establish authorization mechanism, when receiving authorization request, output the graphics range cache map that needs to be authorized according to the authorization parameters and service address input in the authorization request. The present invention deeply combines GIS and Web, regulates spatial data through GIS tools, applies Web technology to integrate spatial services, and uses grid thinking to connect data and services, laying a data foundation for regional control. On the other hand, by generalizing and regulating the rules, making them instrumental, process-oriented, and automated, the "three-in-one" provides a rapid construction channel for regional control.

Description

A Grid-Based Method for Global and Vertical Regional Authority Control

technical field

The invention belongs to the technical field of GIS, and in particular relates to a grid-based global vertical area authority control method.

Background technique

The land and space planning industry shoulders important social responsibilities, adopts advanced high-tech and scientific informatization methods, accelerates digital development, integrates multi-disciplinary, multi-physical quantity, multi-scale, multi-probability and other data simulation processes to jointly build a digital twin.

Global vertical regional authority control is mainly applied to the data use authority of various natural resource status data, planning data, management data and social economic data under multi-level divisions such as provinces, cities, counties, townships, villages, towns, streets, and groups control. In order to realize global vertical regional authority control, in the current GIS industry, pre-processing methods are usually used to achieve this. The specific operation is that each existing data needs to be regionalized before application. This step will consume a lot of labor costs for cutting and post-update work; and then divide each data into multiple regions. Publishing one by one as independent services, this step will require publishing a large number of services, estimated based on the minimum resource consumption of a single service (100 megabytes), requires the support of a large number of hardware resources. With the release of a large number of services, the authority control application of regional roles can be satisfied. However, the multi-threading and high concurrency pressure in the use process will not only continue to consume service hardware resources, but also greatly affect the effect of authority control applications.

According to prior art process analysis, its shortcoming has three:

First, because "every piece of data" needs to be cut according to the minimum division level, the workload of cutting data that needs to be pre-processed in the early stage and maintaining and updating it later will be very heavy.

Second, in the prior art, after "each data" is processed by division, it is published as a service (MapServer) one by one, which will require a large amount of hardware resources to support the normal use of the service.

Third, in the prior art, after "every data" is cut and released, it will be put into application in a multi-instance, high-concurrency mode, which will put a huge pressure on the server, and will greatly affect the application control effect under overload conditions.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a grid-based global vertical area authority control method, which aims to solve the problem of heavy workload, heavy hardware consumption, and high server pressure in the previous preprocessing method of global vertical area authority control. technical problems.

The present invention adopts following technical scheme:

Step S1. Use the global gridded regional data processing tool to perform spatial segmentation on the original administrative regional spatial data at the minimum regional level, and use the spatial range of each segment as the smallest domain unit. By analyzing the spatial sum of each domain unit Attributes are standardized to form a domain unit grid group, and all domain unit grid groups are fused to obtain the global grid zoning data, that is, the domain grid result data;

Step S2, publish the domain grid result data in the form of a service address using the service publishing template and following the template specifications;

Step S3, establishing an authorization mechanism, when receiving an authorization request, according to the authorization parameter and the service address passed in by the authorization request, output the graphic range cache map that needs authorization.

The beneficial effects of the present invention are:

First, for the workload of preprocessing, the present invention only cuts and updates one type of (administrative division) data to reduce the huge workload of data processing in the early stage, and can improve the efficiency of data processing in the early stage by at least a hundred times. With the increase of types, the efficiency will also be improved step by step; secondly, the present invention will use a customized administrative division data format to replace traditional administrative divisions, and through specific processing, only one service will be released to reduce the consumption of server hardware resources. And reduce the strong dependence on high-performance servers; third, after the above-mentioned minimal processing, the application method is synchronously adjusted to the regular application of the service, only need to adjust the maximum number of instances of the service according to the actual number of concurrency, so that the service resources and service instances A relatively balanced state is formed, and the application control effect will be optimal.

Description of drawings

FIG. 1 is a flow chart of a grid-based global vertical area authority control method provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the content of the data processing tool for global gridded division provided by the embodiment of the present invention;

Fig. 3 is a schematic diagram of the principle provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of a circumscribed rectangle provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of forming external data outer_join provided by an embodiment of the present invention;

Fig. 6 is a schematic diagram of an internal grid provided by an embodiment of the present invention;

Fig. 7 is a schematic diagram of an external grid provided by an embodiment of the present invention;

FIG. 8 is an effect diagram of service publishing provided by an embodiment of the present invention;

Fig. 9 is a schematic diagram of an authorization process provided by an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

Fig. 1 shows the flow of the grid-based global vertical area authority control method provided by the embodiment of the present invention, and only shows the part related to the embodiment of the present invention for convenience of description.

As shown in FIG. 1 , the grid-based global vertical region authority control method provided in this embodiment includes the following steps:

Step S1, domain grid result data production step: use the global grid division data processing tool to perform spatial segmentation on the original administrative division spatial data at the minimum division level, and use the spatial range of each division as the smallest domain unit, through Normalize the space and attributes of each domain unit to form a domain unit grid group, and integrate all domain unit grid groups to obtain the global gridded zoning data, that is, the domain grid result data.

This embodiment is to solve the vertical control of spatial data such as "mountains, rivers, forests, fields, lakes, grass and sand" by the Ministry of Natural Resources, and to realize the integrated spatial application authorization of provinces, cities, counties, townships, and villages, based on the unique characteristics of national division codes at all levels , to perform a series of operations on the original administrative division spatial data. In the whole domain, vertically authorize the right to use regional data (provinces, cities, counties and rural groups), skillfully use GIS tools, that is, global gridded zoning data processing tools, complete data regulation, and deeply integrate GIS data to achieve authority control.

In this embodiment, spatial division is performed at the minimum division level, and the spatial range of each division is taken as the smallest domain unit. The minimum division level is the county-level administrative district level. The specific data processing tools for global gridded zoning include circumscribed rectangle, erasure, spatial fusion, fishnet tool, merge and feature fusion tools, and their specific functions can be referred to in Figure 2. The circumscribed rectangle is to find the maximum abscissa, the minimum abscissa, the maximum ordinate, and the minimum ordinate of each vertex of the given two-dimensional graphics to define the rectangle. Erase is to remove the overlapping part of the input graphics and the erased graphics from the input graphics. The middle deduction, and automatically close the remaining graphics after the deduction. Spatial fusion is to fuse the geographical range of multiple areas. The fishnet tool is to divide the area into grids. Merge is to combine the attributes of a data and the attributes of the Target data based on the spatial relationship. Merge, generate new data and merged attributes, and feature fusion is to fuse the features of each region.

As shown in Figure 3, the specific process of this step is as follows:

S11. Carry out spatial segmentation of the original administrative division spatial data at the county-level administrative region level, and calculate the circumscribing rectangle of the domain unit for the segmented domain unit. The circumscribing rectangle is two identical first circumscribing rectangles and second circumscribing rectangles, wherein The first bounding rectangle.

For the domain unit after cutting, the domain unit is the data of the county-level administrative region, and the circumscribed rectangle of the domain unit can be obtained through the circumscribed rectangle tool. Two circumscribing rectangles are obtained here: the first circumscribing rectangle sizhi1 and the second circumscribing rectangle sizhi2. Referring to FIG. 4 , the domain unit is area 1, the circumscribing rectangles are area 1 and area 2, and area 3 is the circumscribing rectangle.

S12. Perform grid processing on the first circumscribing rectangle with a fishnet tool to obtain a circumscribing rectangle fishing net.

The fishnet tool can carry out the meshing process of the circumscribed rectangle, which will not be described here, and the circumscribed rectangle fishnet fish can be obtained.

S13. Simultaneously, the first circumscribing rectangle is produced by using tools such as erasing, merging, and spatial fusion to produce spatial data inside and outside the domain unit.

Erase the first circumscribed rectangle sizhi1 and the domain unit to obtain area 2, merge area 1 and area 2, and use the spatial fusion tool to produce the merge of the internal and external spatial data of the domain unit (including area 1 and area 2).

S14 , using the erase and merge tool to erase the inner space of the domain unit with the second circumscribed rectangle to obtain the outer data.

Use the erasing tool to obtain the external data outer_* of all domain units by using the second circumscribed rectangle sizhi2 and the global peripheral spatial data convex_hull, and use the merge tool to merge the feature attributes into outer_* to form the global external data outer_join, which stores the spatial range outside the circumscribed rectangle , the processing effect is shown in Figure 5.

The global gridded zoning data processing tool also includes an attribute aggregation tool and a minimum boundary geometry tool, and the generation method of the global peripheral space range is as follows:

The county-level administrative region data xzqh is generated using the attribute aggregation tool dissolve to generate a graph of the county-level administrative region in the global space, and then the aggregated graph is used to use the minimum boundary geometry tool Minibounding to generate the global peripheral spatial range convex_hull, that is, the peripheral data of the domain grid.

S15. Perform feature fusion of the circumscribed rectangular fishnet and the internal and external space data to form a circumscribed rectangular fishnet figure of a group of domain units.

Perform a feature fusion operation on the circumscribed rectangular fishnet fish and the internal and external space data merge of the domain unit to form a group of circumscribed rectangular fishnet graphics fish_iden of the domain unit. The processing effect is shown in Figures 6 and 7, where the grids located inside the domain unit are internal grids, and the grids located outside the domain unit and within the circumscribed rectangle are external grids.

S16. Merge the circumscribed rectangular fishnet graphics and the corresponding external data to obtain a set of domain unit grid groups, and then spatially fuse all the domain unit grid groups to form domain grid result data.

Finally, the internal and external fishnet graphics fish_iden and the external data outer_join are combined to obtain a set of domain unit grid groups grids, and all domain unit grid groups are spatially fused to form domain grid result data.

Step S2, templated service release step: release the domain grid result data in the form of a service address using the service release template and following the template specification;

Templated service publishing is based on the service publishing template (MXD file) and following the specifications to publish the grid result data grids into a map service mapserver, which is used in subsequent operations in the form of a service address.

Step S3, authorization and operation step: establish an authorization mechanism, and output the graphic range cache map that needs authorization according to the authorization parameters and service address passed in the authorization request when receiving the authorization request.

During the running of the web application, first create a mask request on the front end of the WEB. It is necessary to pass the authorization parameter (ie XZQDM='-420115000000') and service address to the map server map service of the GIS server, and the map service map server customizes the mask according to the setting expression service, instantly generate the address of the map cache picture in the area; then, embed the cache picture production mask into the top layer of the web application data list, so that it can block all the data in the data list, and achieve the service authorization capability and application authorization effect .

In the WEB application of this embodiment, according to the organizational structure (that is, the county-level administrative division) to which the currently logged-in user belongs, as shown in FIG. "-420115000000") to the GIS server (GISServer); and the GIS server (GISServer) internally parses the incoming parameters, filters and expresses the domain grid result data grids, generates the authorized cache graphics of the current administrative division, and stores them in the GIS The server (GISServer), and returns the address of the cached graphics to the Web application, so that the authorization request is immediately responded to repeatedly.

The present invention is implemented at the PC end, relying on the support of the GIS server end and the Web front end. The GISServer side processes the vector data of the administrative regions at all levels in the whole domain by grading, setting parameters, and thinning, and then releases the WFS service of the OGC standard; the Web front-end processes the data application permissions in blocks, so that the application data of the same category can be automatically filtered when the application is activated; the PC side According to the user's administrative level and member role, read the authorized area range of the data application, and form the vector grid layer after the vector data is graded, determined, and drawn, and the grids inside and outside the visible domain are analyzed. Partial blanking operation, thereby controlling the right to use data in the specified area. Fully and rationally planning the responsibilities of the three parties, combined with supporting authority management methods, can provide safe and reliable authority support for one network in the whole domain, one-click management with authority, and one-stop sharing for the whole people.

In summary, grid-based global vertical regional authority control is mainly applied to multi-level divisions such as provinces, cities, counties, townships, villages, towns, streets, groups, etc., and the status data, planning data, and management data of various natural resources And the control of data usage rights of social and economic data, using "grid index" to replace the "one server, one domain" service model, greatly reducing the overclocking load brought by data authorization to the GIS server, fast, convenient, efficient and smooth To effectively realize the authorization of regions at all levels at the data application level.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (5)

1. A grid-based global vertical area authority control method, characterized in that the method comprises the steps of: Step S1. Use the global gridded regional data processing tool to perform spatial segmentation on the original administrative regional spatial data at the minimum regional level, and use the spatial range of each segment as the smallest domain unit. By analyzing the spatial sum of each domain unit Attributes are standardized to form a domain unit grid group, and all domain unit grid groups are fused to obtain the global grid zoning data, that is, the domain grid result data; Step S2, publish the domain grid result data in the form of a service address using the service publishing template and following the template specifications; Step S3, establishing an authorization mechanism, when receiving an authorization request, according to the authorization parameter and the service address passed in by the authorization request, output the graphic range cache map that needs authorization. 2. as claimed in claim 1, based on the grid-based global vertical area authority control method, it is characterized in that, said global grid-based zoning data processing tool has circumscribed rectangle, erase, space fusion, fishnet tool, merge and feature fusion tool. 3. The grid-based global vertical area authority control method according to claim 2, characterized in that, the specific process of the step S1 is as follows: Carry out spatial segmentation on the original administrative division spatial data at the county-level administrative region level, and calculate the circumscribed rectangle of the domain unit for the segmented domain unit, and the circumscribed rectangle is two identical first circumscribed rectangles and second circumscribed rectangles; Use the fishnet tool to mesh the first circumscribed rectangle to obtain a circumscribed rectangle fishnet; At the same time, use the erasing, merging, and spatial fusion tools to produce the spatial data inside and outside the domain unit by using the first circumscribed rectangle; Use the erasing and merging tools to erase the inner space of the domain unit by passing the second circumscribed rectangle through the peripheral space of the whole domain to obtain the external data; The circumscribed rectangular fishnet is fused with the internal and external spatial data to form a set of circumscribed rectangular fishnet graphics of domain units; Merge the circumscribed rectangular fishnet graphics and the corresponding external data to obtain a set of domain unit grid groups, and then spatially fuse all the domain unit grid groups to form the domain grid result data. 4. The gridded-based global vertical area authority control method according to claim 3, wherein the global gridded division data processing tool also includes an attribute aggregation tool and a minimum boundary geometry tool, and the step S1 The outer space extent of the medium universe is generated as follows: The county-level administrative region data is generated using the attribute aggregation tool to generate a graph of the county-level administrative region in the global space, and then the aggregated graph is used to generate the peripheral spatial range of the whole region using the minimum boundary geometry tool. 5. The grid-based global vertical region authority control method according to claim 4, wherein the specific process of the step S3 is as follows: During the running of the web application, first create a mask request on the front end of the WEB, and pass the authorization parameters and service address to the map service of the GIS server. The map service customizes the mask service according to the setting expression, and instantly generates the address of the map cache image in this area ; Then, the cache picture production mask is embedded in the top layer of the web application data list, so that the cache picture can cover all the data in the data list.

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