CN112131332A

CN112131332A - Information point updating method and device, electronic equipment and computer storage medium

Info

Publication number: CN112131332A
Application number: CN202011025279.0A
Authority: CN
Inventors: 李鸿超
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2020-12-25
Anticipated expiration: 2040-09-25
Also published as: CN112131332B

Abstract

The application provides an updating method, a device, electronic equipment and a computer storage medium of an information point, wherein the method comprises the steps of obtaining geographic coordinates of the information point to be processed; reading a tile corresponding to the region where the geographic coordinates of the information points to be processed are located; and executing information point updating operation on the read tiles meeting the preset updating conditions to obtain updated tiles, and updating the tiles subjected to the updating operation in the map database by using the updated tiles. When the map information point is updated, the tile to be processed where the map information point is located is found and the tile to be processed is updated, and the data volume of the tile to be processed is far smaller than that of the city map containing the tile to be processed.

Description

Information point updating method and device, electronic equipment and computer storage medium

Technical Field

The present invention relates to the field of digital map technologies, and in particular, to an information point updating method and apparatus, an electronic device, and a computer storage medium.

Background

With the development of the mobile internet, digital maps have become an indispensable tool for people to travel and travel in daily life. After a user starts a client of the digital map, the client accesses a map database deployed in the electronic equipment, acquires a map of a corresponding area from the map database and displays the map to the user.

In digital maps, various buildings and facilities of a city are generally labeled in the form of information points. When the digital map is used, the functions of navigation, address query and the like can be realized according to the relative positions of the marked traffic lines and the corresponding information points.

In order to ensure the accuracy of the map, the operator of the digital map needs to update the information points marked in the map according to the change of the city. The existing updating method generally includes directly obtaining and updating a complete city map, and replacing an original city map in a map database with the updated city map after the updating is completed.

However, the data size of the complete city map is very large, and each update in the prior art needs to process the whole city map, which results in too long time for completing one update.

Disclosure of Invention

In view of the above drawbacks of the prior art, the present application provides an information point updating method, apparatus, electronic device, and electronic device, so as to provide a scheme for quickly updating information points of a digital map.

A first aspect of the present application provides an information point updating method, including:

acquiring the geographic coordinates of the information points to be processed;

reading a tile corresponding to the region where the geographic coordinates of the information points to be processed are located;

and executing information point updating operation on the read tiles to obtain updated tiles, and updating the tiles on which the updating operation is executed in the map database by using the updated tiles.

Optionally, the reading of the tile corresponding to the area where the geographic coordinate of the information point to be processed is located includes:

determining pixel point coordinates corresponding to the information point to be processed according to the geographic coordinates of the information point to be processed;

and reading the tile where the pixel point coordinates corresponding to the information point to be processed are located.

and reading tiles which correspond to the region where the geographic coordinates of the information points to be processed are located and have the scale consistent with the preset scale of the information points to be processed.

Optionally, the performing an information point update operation on the read tile to obtain an updated tile includes:

for each read tile, obtaining a tile object obtained by deserializing the tile;

updating the information point object of the tile object by using the information point object corresponding to the information point to be processed to obtain an updated tile object;

and serializing the updated tile object to obtain an updated tile.

Optionally, the updating the information point object of the tile object by using the information point object corresponding to the information point to be processed includes:

deleting an information point object corresponding to the information point to be processed from the tile object;

or, modifying an information point object corresponding to the information point to be processed in the tile object;

or adding an information point object corresponding to the information point to be processed in the tile object.

Optionally, when the information point object corresponding to the information point to be processed is utilized to update the information point object reference of the tile object, and the information point object corresponding to the information point to be processed is deleted from the tile object, or the information point object corresponding to the information point to be processed in the tile object is modified;

after the tile corresponding to the area where the geographic coordinates of the information point to be processed are read, the method further comprises the following steps:

and reading other tiles adjacent to the tile corresponding to the region where the geographic coordinates of the information point to be processed are located.

Optionally, the updating, by using the information point object corresponding to the information point to be processed, the information point object of the tile object to obtain an updated tile object, includes:

if the scale of the tile corresponding to the tile object is not consistent with a preset target scale, deleting an information point object corresponding to the information point to be processed from the tile object to obtain an updated tile object;

and if the scale of the tile corresponding to the tile object is consistent with a preset target scale, adding the information point object corresponding to the information point to be processed to the tile object to obtain an updated tile object.

A second aspect of the present application provides a map information point updating apparatus, including:

the acquisition unit is used for acquiring the geographic coordinates of the information points to be processed;

the reading unit is used for reading the tiles corresponding to the region where the geographic coordinates of the information points to be processed are located;

and the updating unit is used for executing information point updating operation on the read tiles to obtain updated tiles and updating the tiles which are executed with the updating operation in the map database by using the updated tiles.

A third aspect of the present application provides an electronic device comprising a memory and a processor;

wherein the memory is for storing a computer program;

the processor is configured to execute the computer program, and in particular, is configured to implement the method for updating an information point provided in any one of the first aspects of the present application.

A fourth aspect of the present application provides a computer storage medium for storing a computer program, where the computer program is specifically configured to implement the method for updating an information point provided in any one of the first aspects of the present application when executed.

The application provides an updating method and device of information points, electronic equipment and the electronic equipment, wherein the method comprises the steps of obtaining geographic coordinates of information points to be processed; reading a tile corresponding to the region where the geographic coordinates of the information points to be processed are located; and executing information point updating operation on the read tiles meeting the preset updating conditions to obtain updated tiles, and replacing the tiles subjected to the information point updating operation in the map database with the updated tiles. When the map information point is updated, the tile to be processed where the map information point is located is found and the tile to be processed is updated, and the data volume of the tile to be processed is far smaller than that of the city map containing the tile to be processed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an update process of information points of a conventional map;

fig. 2 is a schematic diagram of a map and information points provided in an embodiment of the present application;

fig. 3 is a flowchart of an information point updating method according to an embodiment of the present application;

fig. 4 is a flowchart of a method for updating map information points in a raster map format according to an embodiment of the present application;

fig. 5 is a flowchart of a method for updating map information points in a vector graphics format according to an embodiment of the present application;

FIG. 6 is a flowchart of a method for performing a point of information update operation on a tile according to an embodiment of the present application;

FIG. 7 is a flowchart of a method for modifying a scale of information points according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of an example of deleting an information point from a map according to an embodiment of the present application;

fig. 9 is a schematic diagram of another example of deleting an information point from a map according to an embodiment of the present application;

FIG. 10 is a diagram illustrating an example of adding information points in a map according to an embodiment of the present disclosure;

FIG. 11 is a diagram illustrating an example of modifying attributes of an information point provided by an embodiment of the present application;

fig. 12 is a schematic structural diagram of an apparatus for updating an information point according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The application relates to a scheme for rapidly updating information points in a digital map. First, for comparison, please refer to the conventional map information point updating flow shown in fig. 1. As shown in fig. 1, in the existing updating process, first, complete map data of a city where an information point to be updated is located is obtained through a data access link, then, the obtained map data is subjected to process processing and labeling to obtain updated map data, and finally, the updated map data is written into a database through the data access link again. The process processing and labeling links are complicated, the whole processing process needs to process the complete city map, the data volume needing to be processed is large, and the updating speed is slow.

In order to facilitate understanding of the technical solutions provided in the present application, a digital map and related terms are briefly described below with reference to the schematic diagram of a map and information points provided in fig. 2.

A city map of a city may be considered as an image showing the position relationship between roads of the city and a plurality of buildings and facilities, fig. 2 may be considered as a local area of the city map of the city, a city map (i.e. a digital map corresponding to a city) may be divided into a plurality of sub-images with the same size, the sub-images are called as tiles of the whole city map, the local area shown in fig. 2 is composed of 9 tiles, and each smaller rectangular area surrounded by a dashed frame represents one tile of the map. It is understood that each tile of the city map corresponds to a real geographic area in the city.

It will be appreciated that a city may correspond to a plurality of digital maps having different scales to enable a user to view the maps at any suitable scale. Correspondingly, the digital map of each scale is composed of a plurality of corresponding scales, and for any one specified scale of any one specified city, all tiles belonging to the specified city and under the specified scale are combined according to the corresponding position relationship, so that the complete city map of the specified city under the specified scale can be obtained.

When a user needs to browse geographic information in a specific area in a city map, the client program can pull a plurality of tiles which are in the specific area and are under a scale designated by the user from the server side, and the tiles are combined and displayed on a screen according to the position relation of each tile so as to be convenient for the user to browse.

The digital map uses Point of information (POI) to represent buildings or facilities in the real world, fig. 2 shows three information points on the map, which are respectively used to represent XX hospital, a school and YY station, wherein each information Point is respectively represented by a corresponding icon (such as a circular icon or a rectangular icon), fig. 2 shows only two simple icons, and in practical applications, the icons may also use other more complex combined shapes. When browsing the map, the user can determine the path to the points according to the position relation between the road drawn on the map and the information points. In other words, an information point on a map may be understood as a combination of text and graphic elements used to refer to a particular building or facility.

It should be noted that the maintenance and development personnel of the map can specify a plurality of display scales for each information point. When a display scale is designated for an information point, the information point is displayed only on a map having the display scale of a preset scale, but not on maps having other scales.

For example, if the scale of the map currently displayed includes the scale 10 and the scale 13, the information point can be seen on the map if the scale of the map currently displayed is the scale 10 or the scale 13, and if the scale of the map currently displayed is a scale other than the scale 10 and the scale 13, the information point is not displayed on the map.

In conjunction with the example of fig. 2 and with reference to fig. 3, an embodiment of the present application provides an information point updating method, which may include the following steps as shown in fig. 3:

s301, acquiring the geographic coordinates of the information points to be processed.

The information points to be processed are information points which need to be updated when the updating method is executed. The geographic coordinates of the information points to be processed can be input by the relevant personnel on the terminal device and then sent by the terminal device to the device for executing the updating method provided by the application.

The updating method provided by the application can be executed by a server or a server cluster, and also can be executed by one or more computers with enough computing capacity.

As described above, the information points in the digital map correspond to tags of real buildings or facilities in the city on the map, and accordingly, the geographic coordinates of the information points to be processed in step S301 are the longitude and latitude of the real buildings or facilities corresponding to the information points to be processed.

For example, if a new hospital is created in a city, it is necessary to add information points for representing the new hospital to the digital map corresponding to the city, in this case, the information points representing the new hospital are the information points to be processed mentioned in step S301, and the longitude and latitude of the new hospital are the geographic coordinates of the information points to be processed.

Similarly, if a bus station is removed from the city, the information point representing the bus station needs to be deleted from the corresponding digital map, and at this time, the updating method provided by the present application is executed, so that the information point to be processed is the information point corresponding to the bus station, and the geographic coordinates are the longitude and latitude of the bus station.

Optionally, the updating method provided by the present application may update a plurality of tiles at a time, and the updated information points may also be a plurality of information points, so step S301 may also be to read a plurality of geographic coordinates corresponding to a plurality of information points to be processed from the geographic coordinate list.

Generally, one geographic coordinate may uniquely correspond to a building or facility, but due to the limitation of the numerical precision of computer records, the resolution of images, and the like, it may happen that neighboring buildings or facilities have the same geographic coordinate, and in order to distinguish information points with the same geographic coordinate in the above case, in step S301, in addition to the geographic coordinate of the information point to be processed, the name of the information point to be processed, or the name of the building or facility corresponding to the information point to be processed, may also be acquired.

S302, reading the tile corresponding to the region where the geographic coordinates of the information point to be processed are located.

The implementation process of step S302 may be:

according to the geographic coordinates of the information point to be processed, the coordinates of the pixel point of the information point to be processed in the complete map are determined, in other words, the position of the information point to be processed when the information point to be processed is displayed in the map is determined.

Optionally, when a map of a certain city is generated, a reference point may be specified therein, where the reference point corresponds to a real reference geographic coordinate, so that when the position of any information point in the map is subsequently determined, only a relative positional relationship, such as a relative direction, a distance, and the like, between a geographic coordinate corresponding to the information point in the real world and the reference geographic coordinate needs to be determined, and then the determined relative positional relationship is converted according to a scale of the map, so as to determine the positional relationship of the information point in the map with respect to the reference point of the map, thereby determining the coordinates of the pixel point of the information point in the map.

After the pixel point coordinates corresponding to the information point to be processed are determined, the tile where the pixel point coordinates corresponding to the information point to be processed are located can be directly read from the map database, and the read tile is the tile corresponding to the area where the geographic coordinates of the information point to be processed are located in step S302.

Taking fig. 2 as an example, assuming that the information point to be processed is the information point representing the XX hospital in fig. 2, in step S301, the relevant person may input the geographic coordinate and the name of the XX hospital, and then in step S302, the program or the device executing the embodiment may determine the pixel point coordinate of the information point to be processed representing the XX hospital in the map according to the geographic coordinate of the XX hospital, further determine the tile having the pixel point coordinate located in the upper left corner of the local area shown in fig. 2, and then read the tile.

In the map database, each tile is stored in the form of binary image data, and therefore, step S302 may also be understood as reading the binary image data of the tile corresponding to the region where the geographical coordinates of the information point to be processed are located.

Optionally, as described above, the map of a plurality of different scales may be provided in the same area, and the map of each scale is composed of tiles of a corresponding scale, when the method for updating an information point provided in this embodiment is executed, a plurality of preset scales may be pre-specified for the information point to be processed, and only the tiles of the preset scales are updated, but not the tiles of other scales, at this time, when the tiles are read in step S302, the tiles corresponding to the area where the geographic coordinates of the information point to be processed are located and having scales consistent with the preset scales of the information point to be processed may be read, that is, when the tiles are retrieved in the map database, the geographic coordinates of the information point to be processed and the preset scales are used as retrieval conditions for retrieval at the same time.

Assuming that the information points to be processed are information points representing the XX hospital, which need to be added to the map of the scale 10 and the scale 15, step S302 may be to find the tile corresponding to the region of the XX hospital and having the scale of the scale 10 or the scale 15 from the map database.

And S303, executing information point updating operation on the read tile to obtain an updated tile.

The information point updating operation may specifically include deleting an information point to be processed from a tile, adding an information point to be processed to the tile, and modifying an attribute of the information point to be processed in the tile. Correspondingly, the information points to be processed may specifically refer to information points to be deleted that need to be deleted from some maps, newly added information points that need to be added to the maps, and information points to be modified that need to have their attributes adjusted.

The attributes of the information point may include icon shape, size, color, name, priority, display scale, and the like.

Among the above attributes, the priority attribute is to control some information points to overlap other information points when a plurality of information points overlap. For example, when a certain information point in a map is dense, a phenomenon that a plurality of information points are partially overlapped may occur due to a limitation of image resolution, and in this case, in order to avoid causing interference to a user, an information point with the highest priority may be determined among the overlapped information points, and only the information point with the highest priority may be displayed, and other information points overlapped or partially overlapped with the information point with the highest priority may not be displayed.

Correspondingly, according to specific requirements, the step S303 of performing an information point update operation on the read tile to obtain an updated tile may be:

deleting the information points to be processed from the read tiles, wherein the tiles after the information points to be processed are the updated tiles (namely the information points are off-line);

or adding information points to be processed in the read tiles, wherein the tiles after the information points to be processed are updated tiles (namely the information points are on-line);

or, modifying the attribute of the information point to be processed in the read tile, wherein the tile with the modified attribute of the information point to be processed is the updated tile.

Optionally, in order to prevent an error from occurring when the update operation is performed, the read tile may be copied to obtain a backup tile, if the update operation is successfully performed, the backup tile may be deleted, if the update operation is failed, the tile of the failed update operation is performed, and then the update operation is performed on the backup tile again.

Or, on the premise that there is a backup tile, if the execution of the update operation fails, the backup tile may also be used to perform rollback, that is, the update operation that failed to be executed is cancelled, and the update is ended, and the backup tile is continuously used.

And S304, updating the tile which is subjected to the updating operation in the map database by using the updated tile.

A user may run a client program of a digital map on a mobile terminal device (e.g., a smart phone) and a fixed terminal device (e.g., a personal computer) to browse the digital map, where an image format of the digital map used by the client of the mobile terminal device is a vector diagram (which may also be referred to as a hand diagram), and an image format of the digital map used by the fixed terminal device is generally a raster diagram.

On the first hand, when the image format of the tile read from the map database is a vector diagram, the updating process in step S304 may be to first publish the updated tile in the map database, then read the version number of the tile on which the updating operation is performed from the map database, and then increment the read version number by 1 to obtain the version number of the updated tile.

For example, assuming that the version number of the tile on which the update operation is performed is 3.2.0, the version number of the updated tile resulting from the above operation is 3.2.1.

Then, the version number of the updated tile and the updated tile are written into the map database together. When the subsequent client program of the fixed terminal pulls the tile in the form of the raster pattern from the map database, the tile with the highest version number, namely the updated tile, is automatically pulled.

If the version number of the tile subjected to the updating operation cannot be read successfully, the updating can be stopped, error prompt information is output, and relevant personnel are prompted to check.

Referring to fig. 4, when the image format of the updated map is a vector diagram (hand diagram), the update process of the map information points may include the following steps:

s401, reading a list of information points to be processed.

The list contains the geographical coordinates of one or more information points to be processed.

S402, drawing the tiles corresponding to the information points to be processed from the map database.

And drawing the tiles corresponding to the information points to be processed from the map database, which is equivalent to reading the tiles corresponding to the areas where the geographic coordinates of the information points to be processed are located.

The specific execution process of step S401 and step S402 is the same as that of step S301 and step S302 in the embodiment corresponding to fig. 3, and is not described again.

If the pulling in step S402 fails, that is, the tile corresponding to the information point to be processed cannot be pulled, the update may be directly ended.

And S403, backing up the read tiles.

The step S403 is executed to directly return to the tile backed up in step S403 to update the backed up tile again, or cancel the update and write the backed up tile back to the map database if the subsequent steps have errors.

S404, executing information point updating operation on the read tile to obtain an updated tile.

The specific execution process of step S404 coincides with step S303.

S405, publishing the updated tiles to the map database.

Step S405 may be understood as writing the updated tiles to the map database.

S406, obtaining the version number of the tile on which the updating operation is executed from the map database.

The tile on which the update operation is performed refers to the tile before the information point update operation described in step S404 is performed, that is, the tile before the update.

If the acquisition fails, that is, the corresponding version number is not acquired, the update can be directly finished.

And S407, updating the acquired version number.

Step S407, namely, adding 1 to the obtained version number to obtain an updated version number.

S408, writing the updated version number into the map database as the version number corresponding to the updated tile.

When other subsequent clients acquire the tiles from the map database, the tiles with the largest version numbers, namely the updated tiles, are acquired.

In the second aspect, when the image format of the tile for performing the update operation is the grid map, the update in step S204 needs to delete the original tile for performing the update operation from the map database and each edge server of the CDN network, and then write the updated tile into the map database.

Referring to fig. 5, when the image format of the updated map is a grid map, the update flow of the map information points may include the following steps:

s501, reading a list of information points to be processed.

S502, pulling the tiles corresponding to the information points to be processed from the map database.

The specific execution process of step S501 and step S502 is the same as that of step S301 and step S302 in the embodiment corresponding to fig. 3, and is not described again.

If the pulling in step S502 fails, that is, the tile corresponding to the information point to be processed cannot be pulled, the update may be directly ended.

S503, backing up the read tiles.

The step S503 is executed to directly return to the tile backed up in the step S503 to update the backed up tile again, or cancel the update and write the backed up tile back to the map database if the subsequent steps have errors.

S504, executing information point updating operation on the read tile to obtain an updated tile.

The specific execution process of step S504 corresponds to step S303.

And S505, releasing the updated tiles to the map database.

And S506, deleting the tiles subjected to the updating operation from the map database and the edge server of the CDN network.

The tile on which the update operation is performed refers to the tile before the information point update operation described in step S504 is performed, that is, the tile before the update.

In any embodiment of the present application, when introducing the corresponding method, for convenience of understanding, one information point to be processed is taken as an example for description, but as described above, the information point updating method provided by the present application may update a plurality of information points to be processed at one time in a parallel processing manner.

The method provided by the embodiment has the following beneficial effects:

on the first hand, when updating an information point in a map, the embodiment of the present application only needs to process a small number of tiles corresponding to an area where a geographic coordinate of an information point to be processed is located in a map database, and does not need to process a complete digital map composed of a large number of tiles.

In the second aspect, since each update requires updating a complete digital map (usually a complete city map of a city), a lot of preparation work is required to perform the update operation, for example, the backup of the city map, the suspension of the map service for the city, the calling of the data interface to access the map data, and the manual annotation of the image, etc., lead to the complicated whole processing flow, the updating method provided by the application only needs to search the tile corresponding to the region where the geographic coordinates of the information points to be processed are located from the map database, and the binary image data corresponding to these tiles is automatically processed, so that updated tiles can be obtained, and the information point is updated, the whole processing flow is simple and convenient, and the speed of updating the information point can be improved.

In the third aspect, in the existing method for directly updating a complete map, although only the image content of a local area may change during each update, the client program still needs the map database to read all the data related to the update, that is, read the image data corresponding to a complete map, but cannot directly use only the image data cached between the local parts of the client program, so that after information points are updated in the map database each time, the client program needs to consume a large amount of network resources to download the complete map related to the update from the map database.

In the updating method provided by the application, each updating only involves the tile corresponding to the region where the geographic coordinate of the information point to be processed is located, so that the client program can only download a small amount of updated tiles corresponding to the region where the geographic coordinate of the information point to be processed is located, and for other tiles which are not involved in the updating, the client program can continue to use the data cached in the local in the past. Therefore, the information points in the map are updated by the updating method provided by the application, and the network resources consumed by downloading the updating data by the client program after each updating can be effectively reduced.

Referring to fig. 6, as described in step S303 of the embodiment shown in fig. 3, the performing an information point update operation on the read tile to obtain an updated tile may include the following steps:

s601, for each read tile, obtaining a tile object obtained by deserializing the tile.

As mentioned above, the tile read in step S302 is substantially binary image data corresponding to the tile, and correspondingly, in step S601, the deserializing operation is performed on the binary image data corresponding to the tile to obtain the tile object corresponding to the read tile. The deserialized tile object, and consequently the inode object, may be understood as data structures that may be directly manipulated by a computer program.

Deserializing is performed on a tile, and it is understood that, according to the parsing rule preset in the configuration file, the image data of the tile is converted into several items of description information (i.e. tile attributes of the tile) for describing the tile, such as the size of the tile, the position of the boundary of each area in the tile and the color of each area filling, the position of the tile in the complete map, and so on, and the set of these description information is the tile object of the tile.

Further, when a plurality of information points are displayed in a tile, the tile object obtained by deserializing the image data of the tile may include an information point object of the information points displayed in the tile in addition to the above description information.

Similarly to the tile object, an information point object corresponding to an information point may be understood as a combination of several items of description information (or attributes of the information point) for the information point, for example, description information such as the size, icon shape and color, position in a map, corresponding geographic coordinates, name, display scale and priority of the information point may be recorded in the information point object of an information point.

Operations corresponding to deserialization are called serialization, and the serialization operations are generally performed on the deserialized tile objects. When a tile object is serialized, it can be understood that, according to various items of description information contained in the tile object and description information of information points in information point objects (in the case of information point objects) contained in the tile object, images described by these description information, that is, binary image data of tiles corresponding to the tile object, are generated according to the aforementioned parsing rules.

In the following description, with reference to a simple example, assuming that a tile is a rectangular image with a length of a and a width of B, the image is completely filled with a blue background, an information point X is displayed at a certain position in the tile, the name of the information point X is C, the icon is a red rectangular icon with a preset size, and tile objects obtained by inversing the tile may include:

the tile length is as follows: a; the width of the tile: b; background color: blue; and the information point object of the information point X.

The information point object of the information point X may include:

icon style: style 1, icon properties: a red rectangle with a preset size; name: c, market C; geographic coordinates: (X1, Y1), pixel point coordinates in the map: (X2, Y2).

An operator providing digital map services may pre-draw various icon styles in the icon library and configure corresponding labels (such as style 1 and style 2), so that the icon styles of information points may be determined according to the labels recorded by the attribute of the icon styles in the information point objects.

Correspondingly, the tile object is serialized, that is, an image satisfying the description information is generated according to the description information, and the generated image is the tile corresponding to the tile object.

S602, updating the information point object of the tile object by using the information point object corresponding to the information point to be processed to obtain the updated tile object.

After the tile object is obtained, the tile object obtained through deserialization can be updated by using the information point object corresponding to the information point to be processed according to the information point updating operation which is executed according to the specific requirement.

Specifically, if the information point updating operation in step S303 refers to: and deleting the information points to be processed from the read tiles, wherein the tiles after the information points to be processed are the updated tiles (namely the information points are off-line). In step S602, the information point object corresponding to the information point to be processed may be deleted from the original tile object, and the tile object after the information point object of the information point to be processed is deleted is the updated tile object.

If the information point updating operation refers to adding the information points to be processed in the read tiles, the tiles after the information points to be processed are updated (namely the information points are on-line). Step S602 is executed to generate an information point object corresponding to the information point to be processed, and then add the information point object corresponding to the information point to be processed to the original tile object, where the tile object after adding the information point object of the information point to be processed is the updated tile object.

In the on-line operation of the information point, since the information point object corresponding to the information point to be processed does not exist in the tile object, the information point object of the information point to be processed needs to be generated according to the related instruction, the geographic coordinate, the name and other information which are input in advance.

Specifically, if an information point representing the XX hospital needs to be added, the geographic coordinate and name of the XX hospital, and the shape, size, and color of the icon representing the XX hospital may be input, and then the program may generate an information point object corresponding to the information point to be processed according to the information. Wherein the icon representing XX hospital may be a certain icon designated in a pre-constructed icon library.

When the information point update operation refers to modifying the attribute of the read information point to be processed in the tile, if the attribute to be modified is an attribute other than the display scale, then in step S602, only the information point object of the information point to be processed needs to be found out from the tile object, and then the attribute value of the corresponding attribute in the information point object of the information point to be processed is modified according to the pre-input attribute modification instruction, and the modified tile object is the updated tile object.

For example, if the XX hospital represented by the original information point to be processed is renamed to C hospital, in step S602, it is necessary to modify the attribute of the name recorded in the information point object of the information point to be processed in the map, and modify the attribute value from the original XX hospital to C hospital.

When the attribute to be modified is the display scale of the information point to be processed, please refer to the following embodiments for a specific modification method.

It can be understood that, if the information point object of the information point to be processed needs to be deleted from the tile object or the attribute of the information point to be processed needs to be modified when step S602 is executed, it may be determined whether the tile object includes the information point object of the information point to be processed, and if the tile object does not include the information point object of the information point to be processed, it is obviously unnecessary to execute subsequent operations, and the tile object is directly serialized to obtain the original non-updated tile.

And S603, serializing the updated tile object to obtain an updated tile.

The deserialization and the serialization described in step S601 are all existing data processing flows executed based on a preset parsing rule, so the specific implementation process thereof may refer to the related prior art, and will not be described in detail here.

In the map, it may happen that some information points are located at the edge of a tile, causing the icon of the information point to span multiple tiles, for example, the area where school a is actually located in fig. 2 is the geographic area corresponding to the tile located in the middle, but the corresponding information point is located at the edge of the tile, causing its icon to be displayed in the tile located in the middle and the adjacent tile below at the same time.

It can be understood that when the information point to be processed needs to be deleted or the attribute of the information point to be processed needs to be modified, it is obviously necessary to update the tile on which the information point to be processed is displayed for each portion, therefore, when the information point update operation refers to modifying the attribute of the information point to be processed, or deleting the information point to be processed from the map, in step S303 of the foregoing embodiment shown in fig. 3, the information point update operation is performed on the read tile, and before the updated tile is obtained, other tiles adjacent to the tile corresponding to the area where the geographic coordinates of the information point to be processed are located may be further read from the map database, and then each read tile is identified in the subsequent update operation.

For any tile, if the tile object obtained by deserializing the tile does not include the information point object corresponding to the information point to be processed, it can be considered that the tile does not display the information point to be processed, and therefore, the updating operation is not required to be executed on the tile.

Taking fig. 2 as an example, assuming that the information point to be processed is an information point corresponding to school a in fig. 2, during the stage of reading the tile, on one hand, a tile corresponding to an area where the geographic coordinates of school a are located, that is, a tile located in the center (second row and second column) of fig. 2, and on the other hand, other 8 surrounding tiles adjacent to the tile are also needed, so that it is ensured that the information point spanning multiple tiles is correctly updated.

In this embodiment, when an information point in a tile is updated, the tile is deserialized to obtain a corresponding tile object, then the information point object of the information point to be processed is deleted from the tile object according to specific update requirements, the information point object of the information point to be processed is added, or the attribute of the information point object of the information point to be processed is modified, and finally the updated tile object is serialized to obtain an updated tile. The whole updating process can be automatically executed by a computer program according to the updating requirement input in advance, so that the information point can be quickly and accurately updated.

For the three specific updating methods introduced in the embodiment shown in fig. 6, two of the updating methods may be combined to implement other aspects of updating. Specifically, in the digital map, it is sometimes necessary to modify the display scale of the information point, for example, a certain information point is originally displayed on the map with the scale 10, and now the display scale of the information point needs to be adjusted from the scale 10 to the scale 20, in other words, the information point needs to be displayed on the map with the scale 20 without being displayed on the map with the scale 10. In this case, referring to fig. 7, the specific execution process of the step of updating the information point object of the tile object by using the information point object corresponding to the information point to be processed to obtain the updated tile object may be:

in general, a map database may use two parameters, namely, a level (level) and an offset (mask), to characterize a scale of a tile, for example, the correspondence between the level and the scale may be as shown in table 1 below

TABLE 1

Rank of	Scale bar
		0	16,17,18
1	14,15
		2	11,12,13
3	9,10
		4	7,8
5	4,5,6

It can be seen that there are multiple scales for each level. Further, for each scale belonging to a level, a corresponding offset may be set, for example, the offsets of the three scales corresponding to the level 0 may be as shown in table 2:

TABLE 2

The corresponding offset amounts may be set in the form of table 2 for a plurality of scales of other levels.

Based on the setting, when the map database stores each tile, the level and the offset of the tile can be recorded together, and when a subsequent client program needs to download the tile, the tile with the scale specified by the user can be found from the map database only according to the corresponding relation between the two parameters of the scale, the level and the offset.

S701, determining a target level and a target offset corresponding to the target scale according to the corresponding relation of the scale, the level and the offset.

The target scale refers to the scales to be displayed by the information points to be processed after the update is completed in the update of the display scale for modifying the information points to be processed.

In conjunction with the above examples of table 1 and table 2, assuming that one information point to be processed is displayed on the map of the scale 11 and scale 12 before, it is now necessary to modify the display scale of the information point to be processed so that it is not displayed on the map of the scale 11 and scale 12, but displayed on the map of the scale 16 and scale 17, and then the scale 16 and scale 17 are the target scale indicated in step S701, and the level and offset corresponding to the target scale are the target level and target offset indicated in step S701, and in the above example, the target level is 0 and the target offsets are 2 and 4, respectively.

And S702, respectively detecting whether the level and the offset of each read tile are a target level and a target offset.

When the display scale of the information point to be processed is designed and modified, the tiles corresponding to the region where the geographic coordinate of the information point to be processed is located under all scales can be used in the stage of reading the tiles, and certainly, the information point to be processed is considered to be possibly located at the edge of one tile and spans a plurality of tiles, so that other tiles adjacent to the tile corresponding to the region where the geographic coordinate of the information point to be processed is located can also be read.

S703, deleting the information point object of the information point to be processed from the tile object of each tile with each level and offset inconsistent with the target level and the target offset to obtain an updated tile object.

Step S703 means that, for each read tile, if the level of the tile is not any target level (for example, the target levels are 0 and 1, but the level of the tile is 2, it is obvious that the level of the tile is not any target level), or the level of the tile is a target level, but the offset is not any preset target offset (for example, the target offsets are 2 and 4, but the offset of the tile is 1, it is obvious that the offset of the tile is not any target offset), it is necessary to delete the to-be-processed information point object from the tile object obtained by deserialization of the tile (on the premise that the information point object of the to-be-processed information point exists in the tile object).

S704, adding an information point object of the information point to be processed in the tile object of each tile with the level and the offset consistent with the target level and the target offset to obtain an updated tile object.

With respect to step S703, step S704 is to, for each read tile, add the information point object of the information point to be processed to the tile object of the tile if the level of the tile belongs to the preset target level, the offset of the tile belongs to the preset target offset, and the tile object of the tile does not include the information point object of the information point to be processed, so as to obtain the updated tile object.

The attribute (such as icon size, shape, etc.) of the information point object of the newly added information point to be processed can be specified by related personnel, and in addition, the attribute can be kept consistent with the attribute of the information point to be processed which is originally displayed in the map with other scales.

That is, if one or more tiles exist among the plurality of read tiles, and the condition that the level and the offset are consistent with the target level and the target offset (that is, the condition in step S704) is satisfied, or the condition that the scale is consistent with the preset target scale is satisfied, and the tile object of the tile originally contains the information point object of the information point to be processed, the attribute of the information point object of the information point to be processed originally contained in the tile object of the tile may be copied, and the copied attribute may be used as the attribute of the information point to be processed subsequently added to the tiles with the other scales and the target scales consistent with each other.

For example, assuming that the target scale is scales 11,16, and 17, where the information point to be processed is originally displayed in the tile of the scale 11, and correspondingly, the tile object obtained by deserialization naturally includes the information point object of the information point to be processed, and the attribute of the information point object is recorded as POI-back, then, when the information point to be processed is added to the tiles with scales 16 and 17, the attribute of the information point object of the information point to be processed in the tile of the scale 11 may be specifically copied, a new information point object of the information point to be processed is generated by using the POI-back, and then the newly generated information point object of the information point to be processed is added to the tile objects of the tiles with scales 16 and 17, so as to obtain the updated tile object.

In addition, for each tile which corresponds to the region where the geographic coordinates of the information point to be processed are located and has the target scale, in addition to the information point object of the information point to be processed, the tile object corresponding to the tile object needs to be added with the attribute value of the attribute of the information point object of the information point to be processed, which indicates the scale, and the tile object of the tile which satisfies the above condition needs to be modified to the preset target scale.

Of course, other attributes may be modified or set according to specific needs and will not be described in detail herein.

It can be seen that, if the current update involves modifying the display scale of the information point to be processed, the finally obtained updated tile objects include two types, one of which is the tile object whose scale is inconsistent with the specified target scale and from which the information point object to be processed originally contained is deleted, and the other is the tile object whose scale is consistent with the specified target scale and from which the information point object to be processed is newly added.

It can be understood that the embodiment shown in fig. 7 is only a method for modifying the display scale of the information points to be processed, and when the method finally achieves the effect, each tile corresponds to the area where the geographic coordinates of the information points to be processed are located, and the tiles with the scale being the target scale all contain the information points to be processed, and at the same time, each tile corresponds to the area where the geographic coordinates of the information points to be processed are located, but none of the tiles with the scales not being the target scale include the information points to be processed, which is equivalent to adjusting the display scale of the information points to be processed to the target scale. Any other method capable of achieving the above result can be used to modify the display scale of the information points to be processed in the information point updating method provided by the present application.

In other alternative embodiments, the updating method provided by the present application may also read a corresponding tile from a compiled incremental data packet that needs to be sent to the map database, and then write the updated tile back to the incremental data packet, so that after the incremental data packet is sent to the map database, the map database may also update the data of the database with the updated tile in the incremental data packet.

The following describes a map information point updating method provided by the present application with reference to examples in the drawings.

Referring to fig. 8, firstly, the left side of fig. 8 is a map before updating, and assuming that it is now necessary to delete the information point representing the security bureau from the map, first, the tile where the information point of the security bureau is located in the map (each square in the map represents a tile) can be determined according to the geographic location of the security bureau, and then, by using the updating method provided by the foregoing embodiment, the information point of the security bureau is deleted from the tile where the information point of the security bureau is located, so as to obtain an updated tile, and then, the tile before updating in the map is updated by using the updated tile, so as to obtain the map with the information point of the security bureau deleted on the right side of fig. 8.

In the example of fig. 9, it is necessary to delete the information point of the rockwork mountain school from the map before update (the map before update above fig. 9), and after searching according to the geographical location of the rockwork mountain school, it is found that the information point of the rockwork mountain school spans multiple adjacent tiles in the map, and therefore, it is necessary to read each tile spanned by the information point of the rockwork mountain school one by one, then delete the information point of the rockwork mountain school from these tiles to obtain an updated tile, and then replace the tile before update in the map with the updated tile, thereby obtaining the updated map below fig. 9, and it can be seen that the information point of the rockwork mountain school in the updated map has been removed.

Fig. 10 is an example of a new information point. The left side of fig. 10 is a map before updating, and since an XX hospital is newly created in a certain place in a geographic area corresponding to the map, an information point representing the XX hospital needs to be newly added in the map, at this time, by executing the method provided in the above embodiment, first, according to the geographic location of the newly added XX hospital, the location of the information point of the XX hospital in the map is determined, and then tiles where the information point of the XX hospital is located are found, and then the information point of the XX hospital is added in the tiles, and the tiles to which the information point is added replace the tiles before updating in the original map, so that the updated map on the right side of fig. 10 is obtained, and it can be seen that the information point of the XX hospital is newly added in the updated map.

Fig. 11 is an example of modifying the attributes of an information point, which includes the style of the icon of the information point, the name of the information point, and the like, as described above. As shown in fig. 11, the left side of fig. 11 is a map before updating, and after an airport indicated in the map is renamed from an XX airport to an XX international airport, the name of an information point corresponding to the airport in the map needs to be modified correspondingly so as to avoid misleading the user. Meanwhile, a new icon style is recently made for an airport, and an icon originally indicating the airport position in the map needs to be changed into a newly drawn airport icon.

In the above example, the tile where the corresponding information point is located, that is, the tile to be updated, may be found according to the geographic location of the XX airport, after deserializing the tile to be updated, the information point object corresponding to the XX airport is found in the deserialized tile object, the name attribute in the information point object is modified, the attribute value is modified from the original "XX airport" to the "XX international airport", and the attribute of the icon pattern is changed from the original pattern to the icon pattern for the airport.

After the modification is completed, the modified tile objects are serialized to obtain updated tiles, and then the updated tiles at the corresponding positions in the map are replaced by the updated tiles, so that the updated map shown on the right side of fig. 11 can be obtained.

With reference to fig. 12, the apparatus may specifically include:

an obtaining unit 1201, configured to obtain geographic coordinates of the information point to be processed.

The reading unit 1202 is configured to read a tile corresponding to an area where the geographic coordinates of the information point to be processed are located.

An updating unit 1203, configured to perform an information point updating operation on the read tile, obtain an updated tile, and update the tile in the map database on which the updating operation is performed with the updated tile.

Optionally, when the reading unit 1202 reads the tile corresponding to the area where the geographic coordinate of the information point to be processed is located, the reading unit is specifically configured to:

determining pixel point coordinates corresponding to the information points to be processed according to the geographic coordinates of the information points to be processed;

and reading the tiles which correspond to the region where the geographic coordinates of the information points to be processed are located and have the scale consistent with the preset scale of the information points to be processed.

The updating unit 1203 executes an information point updating operation on the read tile, and when an updated tile is obtained, the updating unit is specifically configured to:

for each read tile, obtaining a tile object obtained by deserializing the tile;

and serializing the updated tile object to obtain an updated tile.

The updating unit 1203, when updating the information point object of the tile object by using the information point object corresponding to the information point to be processed, is specifically configured to:

When the information point object corresponding to the information point to be processed is utilized, the information point object reference of the tile object is updated, the information point object corresponding to the information point to be processed is deleted from the tile object, or the information point object corresponding to the information point to be processed in the tile object is modified;

the reading unit 1202 is further configured to:

The updating unit 1203 updates the information point object of the tile object by using the information point object corresponding to the information point to be processed, and when obtaining the updated tile object, the updating unit is specifically configured to:

if the scale of the tile corresponding to the tile object is not consistent with the preset target scale, deleting an information point object corresponding to the information point to be processed from the tile object to obtain an updated tile object;

and if the scale of the tile corresponding to the tile object is consistent with the preset target scale, adding the information point object corresponding to the information point to be processed to the tile object to obtain an updated tile object.

The specific working principle of the information point updating device provided in the embodiment of the present application may refer to the information point updating method provided in any embodiment of the present application, and details are not described here.

The application provides an information point updating device, wherein an obtaining unit 1201 is used for obtaining geographic coordinates of information points to be processed; the reading unit 1202 reads the tile corresponding to the region where the geographic coordinate of the information point to be processed is located; the updating unit 1203 executes an information point updating operation on the read tiles meeting the preset updating conditions, so as to obtain updated tiles, and updates the tiles in the map database, on which the updating operation is executed, with the updated tiles. When the map information point is updated, the tile to be processed where the map information point is located is found and the tile to be processed is updated, and the data volume of the tile to be processed is far smaller than that of the city map containing the tile to be processed.

Referring to fig. 13, the electronic device may include a memory 1301 and a processor 1302.

The memory 1301 may store, among other things, a computer program.

The processor 1302 may execute the above computer program, and is specifically configured to implement the method for updating an information point provided in any embodiment of the present application.

The embodiment of the present application further provides a computer storage medium, which is used for storing a computer program, and when the stored computer program is executed, the computer storage medium is specifically used for implementing the method for updating an information point provided in any embodiment of the present application.

According to an aspect of the present application, the present application embodiment also provides a computer program product or a computer program, which includes computer instructions, which are stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to enable the computer device to execute the information point updating method provided in the various optional implementation modes of any one of the aspects.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

It should be noted that the terms "first", "second", and the like in the present invention are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.

Those skilled in the art can make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An information point updating method, comprising:

acquiring the geographic coordinates of the information points to be processed;

2. The updating method according to claim 1, wherein said reading the tile corresponding to the area where the geographic coordinates of the information point to be processed are located comprises:

3. The updating method according to claim 1, wherein said reading the tile corresponding to the area where the geographic coordinates of the information point to be processed are located comprises:

4. The updating method according to claim 1, wherein the performing an inode updating operation on the read tile to obtain an updated tile comprises:

for each read tile, obtaining a tile object obtained by deserializing the tile;

and serializing the updated tile object to obtain an updated tile.

5. The updating method according to claim 4, wherein the updating the information point object of the tile object by using the information point object corresponding to the information point to be processed comprises:

6. The updating method according to claim 5, wherein when the information point object corresponding to the information point to be processed is utilized to update the information point object reference of the tile object, the information point object corresponding to the information point to be processed is deleted from the tile object, or the information point object corresponding to the information point to be processed in the tile object is modified;

7. The updating method according to claim 4, wherein the updating the information point object of the tile object by using the information point object corresponding to the information point to be processed to obtain an updated tile object comprises:

8. An apparatus for updating an information point, comprising:

9. An electronic device comprising a memory and a processor;

wherein the memory is for storing a computer program;

the processor is configured to execute the computer program, and in particular, to implement the method for updating an information point according to any one of claims 1 to 7.

10. A computer storage medium storing a computer program, which when executed is particularly adapted to implement the method of updating an information point according to any one of claims 1 to 7.