CN104731883A - Network map display method and system - Google Patents
Network map display method and system Download PDFInfo
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- CN104731883A CN104731883A CN201510106867.XA CN201510106867A CN104731883A CN 104731883 A CN104731883 A CN 104731883A CN 201510106867 A CN201510106867 A CN 201510106867A CN 104731883 A CN104731883 A CN 104731883A
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
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- G06F16/9537—Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
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Abstract
The invention relates to a network map display method and system. The method includes the steps that firstly, according to a senior administrative division corresponding to a network electronic map application region, a minimum enclosing rectangle is generated; the minimum enclosing rectangle is amplified to generate an amplified enclosing rectangle; the amplified enclosing rectangle is then combined with senior administrative division space to generate a covering layer; a target region to be displayed is determined; addresses of the target region and the covering layer are matched, regions not matched with the target region in address on the covering layer are set to be visible, and regions matched with the target region in address on the covering layer are set to be invisible; the target region is one or more junior administrative divisions in the senior administrative division. According to the position and the limits of authority of a user, only a map of the administrative division where the user is located or the administrative division to which the user has access is displayed, surrounding maps are not displayed, information interference caused to the user is avoided, and the network map visualization effect is improved.
Description
Technical field
The electronic chart provided by network is provided, particularly relates to a kind of method for displaying network map and system.
Background technology
In recent years, be the Spatial Information Technology of representative and the fast development of Internet technology with the infotech that lands, various electronic chart application Network Based is more and more extensive.This network electronic map mainly provides the Map Services such as base electronic map, photomap, thematic maps with the form of Map Service of Network.At present, two kinds of main application models are had: one is that some have the large enterprise of map publishing qualification or country map issuing unit issues public basic map service and Special Topic Service by internet.Mapping research institute of as new in Gao De, Baidu, Tengxun, mind map, Microsoft, Google and State Bureau of Surveying and Mapping, each province etc., the Map Services such as the map that provides the foundation, three-dimensional map, photomap, streetscape map.Two is that some enterprises or unit apply needs according to self, delivery network Map Services in LAN (Local Area Network).
Based on the Map Service of Network that enterprise or unit self issue, owing to being inner issue, the content such as content, parameter, pattern of various Map Services can need customized according to application, and network map display and control is fairly simple.And for the network map of public internet, because coverage is relatively wider, content is also many, the map provided is all whole region, and personalized map denotation controls more difficult, does not also provide the application interface of this respect at present.Such as, for the user of Beijing, when using public internet Map Service of Network, if only think display Beijing data, current public internet network map all will show the map datum in Beijing and periphery thereof.
Summary of the invention
Technical matters to be solved by this invention is that the Map Service of Network that provides based on public internet in prior art is when showing the map of certain administrative division, all map datums of this administrative division and periphery thereof all can be shown, unnecessary cartographic information can cause information to disturb to user.
For this purpose, the present invention proposes a kind of position according to user place and authority, only show the map of the administrative division of administrative division residing for user or Internet access, and do not show peripheral map, to avoid the method for displaying network map and the system that user are caused to interference.
The invention discloses a kind of method for displaying network map, comprise the following steps:
Senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover the surrounding area of described senior administrative division and described senior administrative division completely;
Determine target area to display;
Mated with described tectal address described target area, on described overlayer, unmatched region, address arranges visible, and color is white, and the region of matching addresses is set to invisible;
One of them senior administrative division comprises multiple rudimentary administrative division;
Described target area is one or more rudimentary administrative division in described senior administrative division.
Preferably, describedly to be mated with described tectal address described target area, on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses also comprises before being set to sightless step:
Described overlayer is divided into multiple pel, the corresponding described tectal pel of each described rudimentary administrative division, the corresponding described tectal pel of the part beyond all described rudimentary administrative divisions.
Preferably, described target area is the current residing rudimentary administrative division at place, geographic position of user or the rudimentary administrative division at place, geographic position of the unit of described user or the rudimentary administrative division of the unit functional jurisdiction of user or the interested rudimentary administrative division of user.
Preferably, describedly to be mated with described tectal address described target area, on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses is set to invisible step and comprises:
Obtain the geocoding of the described pel in described overlayer;
Obtain the geocoding of described target area;
Matched by the geocoding of the geocoding of described target area and described pel, be set to visible by mutually unmatched for address described pel, color is white, and the region of matching addresses is set to invisible.
The present invention also provides a kind of network map display system, comprises with lower module:
Generation module, the senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover the surrounding area of described senior administrative division and described senior administrative division completely;
Determination module, determines target area to display;
Arrange module, mated described target area with described tectal address, on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses is set to invisible;
One of them senior administrative division comprises multiple rudimentary administrative division;
Described target area is one or more rudimentary administrative division in described senior administrative division.
Also comprise:
Segmentation module, is divided into multiple pel by described overlayer, the corresponding described tectal pel of each described rudimentary administrative division, the corresponding described tectal pel of the part beyond all described rudimentary administrative divisions.
Preferably, described target area is the current residing rudimentary administrative division at place, geographic position of user or the rudimentary administrative division at place, geographic position of the unit of described user or the rudimentary administrative division of the unit functional jurisdiction of user or the interested rudimentary administrative division of user.
Preferably, the described module that arranges also comprises:
First obtains submodule, obtains the geocoding of the described pel in described overlayer;
Second obtains submodule, obtains the geocoding of described target area;
Arrange submodule, matched by the geocoding of the geocoding of described target area and described pel, be set to visible by mutually unmatched for address described pel, color is white, and the region of matching addresses is set to invisible.
By adopting method for displaying network map disclosed in this invention and system, the senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover described senior administrative division and surrounding area thereof completely; Determine target area to display; Mated with described tectal address described target area, on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses is set to invisible; One of them senior administrative division comprises multiple rudimentary administrative division; Described target area is one or more rudimentary administrative division in senior administrative division.According to position and the authority at user place, only show the map of the administrative division of administrative division residing for user or Internet access, and do not show peripheral map, to avoid interference user being caused to information.Meanwhile, the region of target area periphery does not show, and can also avoid causing too much data to transmit, and affects access speed.
Accompanying drawing explanation
Can understanding the features and advantages of the present invention clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 shows the process flow diagram of the method for displaying network map of embodiment one;
Fig. 2 shows the overlayer schematic diagram of embodiment one;
Fig. 3 shows the structural representation of the network map region display control program of embodiment two.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is described in detail.
Embodiment one:
As shown in Figure 1, a kind of method for displaying network map, comprises the following steps:
S1, the senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover the surrounding area of described senior administrative division and described senior administrative division completely;
S2, determines target area to display;
S3, mates described target area with described tectal address, and on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses is set to invisible;
One of them senior administrative division comprises multiple rudimentary administrative division;
Described target area is one or more rudimentary administrative division in described senior administrative division.
According to position and the authority at user place, only show the map of the administrative division of administrative division residing for user or Internet access, and do not show peripheral map, to avoid interference user being caused to information, simultaneously, the region of target area periphery does not show, and can also avoid causing too much data to transmit, and affects access speed.
In the present embodiment, draw figure for Beijing borough, 13 districts that Beijing divides into are rudimentary administrative division.In the present embodiment described preset ratio is set to 1/100.Still draw figure for Beijing borough, the overlayer of generation as shown in Figure 2.After described minimum enclosed rectangle being expanded, can guarantee that each point of Beijing's administrative map can fall into described overlayer, to avoid when showing, have display less than place.
Also comprise before described step S3:
Described overlayer is divided into multiple pel, the corresponding described tectal pel of each described rudimentary administrative division, the corresponding described tectal pel of the part beyond all described rudimentary administrative divisions.
As shown in Figure 2, each district that can find out on Beijing's administrative map correspond to a pel on described coverage diagram, and the surrounding area beyond all districts forms a pel, and the coverage diagram that is Beijing's administrative map is corresponding has 14 pels.
Described target area is the current residing rudimentary administrative division at place, geographic position of user or the rudimentary administrative division at place, geographic position of the unit of described user or the rudimentary administrative division of the unit functional jurisdiction of user or the interested rudimentary administrative division of user.
Described step S3 comprises:
S31, obtains the geocoding of the described pel in described overlayer;
S32, obtains the geocoding of described target area;
S33, matches the geocoding of the geocoding of described target area and described pel, is set to visible by mutually unmatched for address described pel, and color is white, and the region of matching addresses is set to invisible.
When determining the coverage diagram of Beijing's administrative map, be each pel and carry out geocoding, suppose that display-object region is Chaoyang District, Chaoyang District has oneself geocoding, the coding of the geocoding of Chaoyang District with the pel in described covering layer is mated one by one, the not right pel of coupling is set to visible, color is white, mate right be set to invisible, the map of Chaoyang District is so then only had to show completely, its peripheral map can not show, thus avoids the interference that irrelevant information causes user.
Embodiment two:
The invention also discloses a kind of network map display system, comprise with lower module:
Generation module, the senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover the surrounding area of described senior administrative division and described senior administrative division completely;
Determination module, determines target area to display;
Arrange module, mated described target area with described tectal address, on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses is set to invisible;
One of them senior administrative division comprises multiple rudimentary administrative division;
Described target area is one or more rudimentary administrative division in described senior administrative division.
According to position and the authority at user place, only show the map of the administrative division of administrative division residing for user or Internet access, and do not show peripheral map, to avoid interference user being caused to information, simultaneously, the region of target area periphery does not show, and can also avoid causing too much data to transmit, and affects access speed.
Also comprise:
Segmentation module, is divided into multiple pel by described overlayer, the corresponding described tectal pel of each described rudimentary administrative division, the corresponding described tectal pel of the part beyond all described rudimentary administrative divisions.
Described target area is the current residing rudimentary administrative division at place, geographic position of user or the rudimentary administrative division at place, geographic position of the unit of described user or the rudimentary administrative division of the unit functional jurisdiction of user or the interested rudimentary administrative division of user.
The described module that arranges also comprises:
First obtains submodule, obtains the geocoding of the described pel in described overlayer;
Second obtains submodule, obtains the geocoding of described target area;
Arrange submodule, matched by the geocoding of the geocoding of described target area and described pel, be set to visible by mutually unmatched for address described pel, color is white, and the region of matching addresses is set to invisible.
Although describe embodiments of the present invention by reference to the accompanying drawings, but those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, such amendment and modification all fall into by within claims limited range.
Claims (8)
1. a method for displaying network map, is characterized in that, comprises the following steps:
Senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover the surrounding area of described senior administrative division and described senior administrative division completely;
Determine target area to display;
Mated with described tectal address described target area, on described overlayer, unmatched region, address arranges visible, and color is white, and the region of matching addresses is set to invisible;
One of them senior administrative division comprises multiple rudimentary administrative division;
Described target area is one or more rudimentary administrative division in described senior administrative division.
2. method for displaying network map according to claim 1, it is characterized in that, described described target area to be mated with described tectal address, on described overlayer, unmatched region, address is set to visible, color is white, and the region of matching addresses also comprises before being set to sightless step:
Described overlayer is divided into multiple pel, the corresponding described tectal pel of each described rudimentary administrative division, the corresponding described tectal pel of the part beyond all described rudimentary administrative divisions.
3. method for displaying network map according to claim 2, is characterized in that,
Described target area is the current residing rudimentary administrative division at place, geographic position of user or the rudimentary administrative division at place, geographic position of the unit of described user or the rudimentary administrative division of the unit functional jurisdiction of user or the interested rudimentary administrative division of user.
4. the method for displaying network map according to Claims 2 or 3, it is characterized in that, described described target area to be mated with described tectal address, on described overlayer, unmatched region, address is set to visible, color is white, and the region of matching addresses is set to invisible step and comprises:
Obtain the geocoding of the described pel in described overlayer;
Obtain the geocoding of described target area;
Matched by the geocoding of the geocoding of described target area and described pel, be set to visible by mutually unmatched for address described pel, color is white, and the region of matching addresses is set to invisible.
5. a network map display system, is characterized in that, comprises with lower module:
Generation module, the senior administrative division corresponding to application network electronic chart region generates minimum enclosed rectangle; And amplify described minimum enclosed rectangle according to preset ratio, generate the boundary rectangle after expanding; Boundary rectangle after described expansion merges with described senior administrative division space again, and generate overlayer, described overlayer can cover the surrounding area of described senior administrative division and described senior administrative division completely;
Determination module, determines target area to display;
Arrange module, mated described target area with described tectal address, on described overlayer, unmatched region, address is set to visible, and color is white, and the region of matching addresses is set to invisible;
One of them senior administrative division comprises multiple rudimentary administrative division;
Described target area is one or more rudimentary administrative division in described senior administrative division.
6. method for displaying network map according to claim 5, is characterized in that, also comprises:
Segmentation module, is divided into multiple pel by described overlayer, the corresponding described tectal pel of each described rudimentary administrative division, the corresponding described tectal pel of the part beyond all described rudimentary administrative divisions.
7. method for displaying network map according to claim 6, is characterized in that,
Described target area is the current residing rudimentary administrative division at place, geographic position of user or the rudimentary administrative division at place, geographic position of the unit of described user or the rudimentary administrative division of the unit functional jurisdiction of user or the interested rudimentary administrative division of user.
8. the method for displaying network map according to claim 6 or 7, is characterized in that, the described module that arranges also comprises:
First obtains submodule, obtains the geocoding of the described pel in described overlayer;
Second obtains submodule, obtains the geocoding of described target area;
Arrange submodule, matched by the geocoding of the geocoding of described target area and described pel, be set to visible by mutually unmatched for address described pel, color is white, and the region of matching addresses is set to invisible.
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| CN106991330A (en) * | 2017-03-27 | 2017-07-28 | 武汉地大信息工程股份有限公司 | A kind of method of data access authority control on three-dimensional map |
| CN107291829A (en) * | 2017-05-27 | 2017-10-24 | 西安未来国际信息股份有限公司 | A kind of information resource authority limits managing method based on LBS |
| CN108553894A (en) * | 2018-05-07 | 2018-09-21 | 网易（杭州）网络有限公司 | Display control method and device, electronic equipment, storage medium |
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| CN106780667A (en) * | 2016-12-12 | 2017-05-31 | 湖北金拓维信息技术有限公司 | A kind of hybrid index method of multi-layer image |
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| CN108553894A (en) * | 2018-05-07 | 2018-09-21 | 网易（杭州）网络有限公司 | Display control method and device, electronic equipment, storage medium |
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