WO2016090887A1 - 地图显示方法和装置 - Google Patents

地图显示方法和装置 Download PDF

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Publication number
WO2016090887A1
WO2016090887A1 PCT/CN2015/081748 CN2015081748W WO2016090887A1 WO 2016090887 A1 WO2016090887 A1 WO 2016090887A1 CN 2015081748 W CN2015081748 W CN 2015081748W WO 2016090887 A1 WO2016090887 A1 WO 2016090887A1
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Prior art keywords
geographic information
points
map
information points
map display
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English (en)
French (fr)
Inventor
万昊
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Baidu Online Network Technology Beijing Co Ltd
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Baidu Online Network Technology Beijing Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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
    • G06F16/953—Querying, e.g. by the use of web search engines
    • G06F16/9537—Spatial or temporal dependent retrieval, e.g. spatiotemporal queries

Definitions

  • the present application relates to the field of computer technology, and in particular to the field of electronic map technology, and in particular, to a map display method and apparatus.
  • Electronic maps also known as digital maps, are maps that are stored and viewed digitally using computer technology.
  • electronic maps as a supplement and substitute for paper maps have gradually become an important means for people to obtain geographic information.
  • the traditional electronic map mainly displays the location information of each point of interest, and some electronic maps also provide some classification information of geographic information points.
  • more information needs to be introduced into traditional electronic maps to expand its information display capabilities.
  • the purpose of the present application is to propose an improved map display method and apparatus to solve the technical problems mentioned in the background section above.
  • the present application provides a map display method, the method comprising: acquiring attribute information of each geographic information point in a set of geographic information points, wherein the attribute includes time and quantizable parameters; detecting a user to a map a predetermined operation; in response to the predetermined operation, displaying at least one geographic information point in the set of geographic information points based on the time and quantizable parameters.
  • the present application provides a map display apparatus, where the apparatus includes: an obtaining unit configured to acquire attribute information of each geographic information point in a set of geographic information points, wherein the attribute includes time and a quantization unit; a detecting unit configured to detect a predetermined operation of the user on the map; a display unit configured to respond to the predetermined operation, based on the time and the quantizable parameter, to at least one geographic information in the set of geographic information points Click to display.
  • the map display method and apparatus provided by the present application enrich the information amount of the geographic information point by introducing attributes such as time and quantizable parameters to the geographic information point, and then time-based and quantifiable by responding to the user's predetermined operation on the map.
  • the parameter displays at least one geographic information point in the set of geographic information points, thereby realizing the dynamic display of the geographic information point in the time dimension, and expanding the information display capability of the map.
  • FIG. 1 is a flow chart of one embodiment of a map display method in accordance with the present application.
  • FIG. 2 is a schematic diagram showing the effect of a graphical user interface displaying a map and a map control according to the present application
  • FIG. 3 is a schematic diagram of noise point screening using the DBSCAN algorithm according to the present application.
  • FIG. 4 is a schematic diagram showing the effect of a map display according to the present application.
  • FIG. 5 is a flow chart of still another embodiment of a map display method according to the present application.
  • FIG. 6 is a schematic structural view of an embodiment of a map display device according to the present application.
  • FIG. 1 shows a flow 100 of one embodiment of a map display method.
  • This embodiment is mainly illustrated by using the method in an electronic device including a display screen.
  • the electronic device may include a smart phone, a tablet computer, an e-book reader, and an MP3 player (Moving Picture Experts Group Audio Layer III, dynamic). Image expert compression Standard audio level 3), MP4 (Moving Picture Experts Group Audio Layer IV) player, laptop portable computer and desktop computer, etc.
  • the map display method includes the following steps:
  • Step 101 Acquire attribute information of each geographic information point in the set of geographic information points.
  • the electronic device may acquire attribute information of each geographic information point in the set of geographic information points locally or remotely.
  • a geographic information point can be a house, a store, a mail box, a bus stop, etc.
  • its attributes can include, but are not limited to, time and quantifiable parameters. That is, in addition to the inherent properties of the location, it is also possible to further enrich the amount of information of the geographic information points with attributes such as time and quantizable parameters.
  • the quantifiable parameter is a parameter that can be quantitatively characterized, and may include, for example, but not limited to, human flow, air quality, amount of solar radiation, groundwater level height, and economic output value, and the like. Quantitative parameters typically change over time or place. A variety of different quantifiable parameters can also be used to describe the information of the same geographic information point.
  • the quantifiable parameters can be directly obtained by using corresponding sensors, for example, using an air quality sensor to obtain the PM2.5 value at each moment; or by calculation or the like, for example, statistically calculating the economic output value of a certain month.
  • the time attribute of the geographic information point is used to reflect the correlation between various information of the geographic information point and time. For example, different values of the human traffic parameter of the geographic information point correspond to different data collection times.
  • the attribute information of the geographic information point may be stored in the memory of the electronic device itself.
  • the electronic device may directly obtain the information locally; the attribute information may also be stored in a remote server (for example, on the electronic device)
  • the map application provides a supported backend server.
  • the electronic device can receive the information from the remote server through a wired connection or a wireless connection.
  • the above wireless connection methods include, but are not limited to, 3G/4G connection, WiFi connection, Bluetooth connection, WiMAX connection, Zigbee connection, UWB (ultra wideband) connection, and other wireless connection methods now known or developed in the future.
  • Step 102 Detect a predetermined operation of the user on the map.
  • the interactive operation between the user of the electronic device and the map can be detected, and subsequent processing is performed according to the detected operation.
  • the predetermined operation of the user on the map may be a single interactive operation, such as an operation of displaying a map; or a combination of several interactive operations, such as selecting a specific time and/or time period, and then displaying the combination of the maps. operating.
  • the electronic device can display the map by means of a graphical user interface (GUI) and implement interactive manipulation of the map by the user by means of controls in the graphical user interface.
  • GUI graphical user interface
  • FIG 2 is a diagram showing the effect of a graphical user interface of a map and map control.
  • a control such as map zoom control 201, is an object in a graphical user interface that a user can manipulate to perform a certain behavior.
  • the user can implement the operation of the map by interacting with the control.
  • the user can operate the map zoom control 201.
  • the electronic device detects the operation, the zoom or enlargement of the map can be implemented according to the operation.
  • the controls available in the graphical user interface are varied. For example, the user can also use time controls to input time parameters.
  • Step 103 Display at least one geographic information point in the set of geographic information points based on the time and quantizable parameters in response to the predetermined operation.
  • the electronic device may respond to the operation, based on the two attributes of the time of the geographic information point and the quantifiable parameter. At least one geographic information point in the set of information points is displayed.
  • the above time may be a time point, for example, 8:00 am.
  • the corresponding quantifiable parameter for example, the flow of people
  • the specific data is directly displayed on the information point or displayed on the geographic information point (for example, color on the rendering, highlighting, etc.) and then displayed.
  • the above time may also be a time period, for example, 7 am to 9 am, when the corresponding quantifiable parameter (for example, human flow) is constantly changing with time variation between 7 am and 9 am.
  • the amount of time, the display of the corresponding geographic information points can be expressed by the changing dynamic effects.
  • the parameter can be quantified as the flow of people, and the time is from 7:00 to 9:00 in the morning. As the time changes from 7:00 am to 9:00, the flow of people gradually becomes larger.
  • the subway station area on the map is rendered The color can be changed from the initial green to the yellow and then gradually to red.
  • the above time may also be a real-time time.
  • the specific data of the quantifiable parameter may be displayed in real time on the corresponding geographic information point; or the geographic information point may be displayed by using a dynamic effect (for example, a concentration change of a single color). real-time.
  • quantifiable parameters other currently known or future developed display modes, such as measurable parameters in the form of numerical/color rendering, fade in or out of the corresponding geographic information points or throughout The fade-in and fade-out of the map page; or, the quantifiable parameter is displayed numerically on the corresponding geographic information point after the trigger (for example, the hovering of the mouse on the corresponding geographic information point) or as the background of the entire map page.
  • the trigger for example, the hovering of the mouse on the corresponding geographic information point
  • the present application is not limited in the presentation of quantifiable parameters.
  • the attribute of the geographic information point may include a rate of change of the quantizable parameter, in addition to the time and the quantizable parameter, and at least one geographic information in step 103.
  • the point is displayed, and the at least one geographic information point may also be displayed based on the time, the quantizable parameter, and the rate of change of the quantifiable parameter.
  • the rate of change of the quantifiable parameter is an indicator for characterizing the degree of change of the quantifiable parameter, which can be calculated in various ways.
  • the rate of change of the quantizable parameter the amount of change in the quantifiable parameter / the amount of change in time.
  • the at least one geographic information point is displayed based on the rate of change of the quantifiable parameter, and the value of the rate of change may be displayed on the corresponding geographic information point in addition to the value of the quantifiable parameter.
  • the rate of change of the quantifiable parameter the average of the quantifiable parameters corresponding to the noise point / the average of the quantifiable parameters corresponding to the non-noise point.
  • the calculation of the rate of change can be performed as follows: First, acquire a plurality of data of a specific quantifiable parameter (for example, a human flow rate) within a specified time period (for example, 10 months) (for example, 10 pieces) Monthly traffic data for each month of the month); Secondly, multiple data is selected by DBSCAN (Density-Based Spatial Clustering of Applications with Noise) or similar clustering algorithm The noise point in the middle; finally, the rate of change of the quantifiable parameter can be obtained by using the "average value of the quantizable parameter corresponding to the noise point/the average value of the quantizable parameter corresponding to the non-noise point".
  • FIG. 3 is a schematic diagram of noise point screening using the DBSCAN algorithm.
  • the DBSCAN algorithm is a representative density-based clustering algorithm.
  • the DBSCAN algorithm uses a center-based approach to filter out noise points. That is, first, the specified geographic information points (for example, Xiangshan) and the monthly traffic data of each month in 10 months are normalized as data points in the DBSCAN algorithm (ie, points in FIG. 3); each data point Density is measured by the number of other data points in the region (neighbor) of the given radius centered on the data point; the data points are three types of points according to the density of the data points: the core point, which is in the neighborhood The density exceeds a given threshold.
  • the specified geographic information points for example, Xiangshan
  • the monthly traffic data of each month in 10 months are normalized as data points in the DBSCAN algorithm (ie, points in FIG. 3); each data point Density is measured by the number of other data points in the region (neighbor) of
  • the core point is shown by a circle with the number 2; the boundary point, which is not the core point, but contains at least one core point in its neighborhood, in Figure 3, the boundary The dots are shown by a circle with the number 3; the noise point is not a core point nor a boundary point, and in Fig. 3, the noise point is shown by a circle with the number 1.
  • the points where the human flow data are significantly different, that is, the noise points are obtained, and these noise points can be used for further display processing of the corresponding geographic information points on the map.
  • the screening result in the above manner is that the human flow data of Xiangshan in October and November is a noise point, and the numerical value shows that the flow of people in these two months is significantly more than other months, you can press the month on the map.
  • the two-month Xiangshan area is additionally rendered (for example, rendered red).
  • this additional rendering can be represented in a different way than the way the quantifiable parameters are displayed. According to this different way of expressing geographic information points on the map, users can know that Xiangshan may appear in October and November as the most beautiful spots.
  • displaying the at least one geographic information point based on a time, a quantizable parameter, and a rate of change of the quantifiable parameter may further include presenting the association with the rate of change.
  • the multimedia information of the geographic information point, wherein the multimedia material may include, but is not limited to, a picture, a video, an audio, and the like of the geographic information point.
  • the presentation of multimedia material can be in various ways, including but not limited to background presentation (example Such as the relevant picture of the geographic information point as the entire map or the background image of the geographic information point area), the foreground rendering (for example, directly presenting the audio of the geographic information point, or the picture of the geographic information point), responding to the mouse over Stop and present, and other ways of presenting multimedia materials that are now known or developed in the future.
  • background presentation example Such as the relevant picture of the geographic information point as the entire map or the background image of the geographic information point area
  • the foreground rendering for example, directly presenting the audio of the geographic information point, or the picture of the geographic information point
  • responding to the mouse over Stop and present and other ways of presenting multimedia materials that are now known or developed in the future.
  • the attribute of the geographic information point may further include a category of the geographic information point (eg, an attraction, a restaurant, a bank, a school, a gas station, etc.), at this time, step 103
  • the display of the geographic information points may also be based on the time, category, quantifiable parameters and the rate of change of the quantifiable parameters of the geographic information points, and the geographic information points are displayed.
  • the category of the geographic information point may be set by default in the geographic information system, such as a common scenic spot, subway, bank, restaurant, etc.; it may also be a category manually added or set by the user to the geographic information point, such as breakfast.
  • a geographic information point can have multiple categories, for example, a building, either a bank category or an attraction category.
  • FIG. 4 is a schematic diagram showing the effect of a map display according to the present application. As shown in FIG. 4, the horizontal axis in FIG.
  • time axis 401 corresponds to the time axis 401, and the vertical axis corresponds to the category axis 402; the time "2014.10.20-11.15" on the time axis 401 indicates the start and end date of the time corresponding to the time axis;
  • the characters "attraction", "bank” and the like on 402 indicate various categories of respective geographic information points included in the category axis; and icon 404 is a display control for map display, and the user's click on the display control 404 can trigger the map to follow Dynamic display of time lapse.
  • the size of the circle 405 at a specific time point/time period on the time axis 401 reflects the richness of the time characteristic information related to the time point/time period, that is, the larger the circle, the corresponding rate of change of the quantifiable parameter The greater the number of geographic information points at which the time falls on the point in time/time period.
  • the size of the circle 406 on a particular category on the category axis 402 embodies the category The number of related geographic information points, that is, the larger the circle, the greater the number of geographic information points under the category.
  • related pictures of geographic information points are also displayed in the foreground by means of the picture bar 403, and the display of these pictures may change with time on the time axis or a change in the category on the category axis.
  • the predetermined operation of the user on the map may be a combination of several operations, for example, the predetermined operation includes a user's selection operation of time and/or a selection operation of the category.
  • the user can perform the display operation of the map after completing the above selection operation (for example, the user clicks on the display control 404 in FIG. 4).
  • the user's choice of time and/or category can also be performed by means of related controls of the graphical user interface.
  • the electronic device may select a geographic information point from the set of geographic information points obtained in step 101 according to the selected time and/or category, and then display the selected geographic information point.
  • the initial geographic information point set obtained in step 101 includes geographic information points of a scenic spot, a dining place, a bank, a school, etc.
  • the initial geographic will be The set of information points removes geographic information points of other categories than the scenic spots, and the geographic information points of the scenic categories are displayed according to the time of November (and also according to the associated quantifiable parameters, the rate of change of the quantifiable parameters).
  • the scale and/or icon of November may also be highlighted on the timeline, and the scale and/or icon of the attraction may be highlighted on the category axis.
  • the scenario of the application may be that after the user clicks on the display control on the map, the electronic device displays the geographic information points on the map according to the time dimension according to the quantizable parameters of the geographic information points, such as the human traffic, for example, Render geographic information points with different colors based on the amount of traffic.
  • the method provided by the above embodiments of the present application contributes to implementing a richer map information presentation means.
  • the flow of the map display method 500 includes the following steps:
  • Step 501 Receive a setting request of a set of geographic information points.
  • the user of the electronic device may issue a setting request of the set of geographic information points by performing an interactive operation on the map displayed on the screen of the electronic device, wherein the setting request includes dividing into the geographic location.
  • the above condition may be a geographical area condition, that is, a geographic information point falling within the set geographical area is divided into the above-mentioned geographic information point set.
  • a geographical area condition such as "Beijing Haidian District” by means of controls in the graphical user interface, such as a city urban selection control.
  • the above condition may also be a category condition, that is, a geographic information point falling within a set category (eg, an attraction) is classified into a set of geographic information points.
  • a set category eg, an attraction
  • the issuance of the setting request including the conditions to be satisfied by the set of geographic information points will be triggered, and the electronic device will subsequently receive the setting request.
  • Step 502 Determine, according to the setting request, a geographic information point included in the set of geographic information points.
  • the electronic device analyzes the received setting request, acquires the condition in the setting request, and then divides the qualified geographic information points into the geographic information point set according to the condition.
  • the geographic information in addition to determining the geographic information points to be included in the set of geographic information points by the conditions included in the setting request, the geographic information may be further determined by the personalized information of the users of the map.
  • the user's personalized information may include, but is not limited to, the user's location information (eg, current location), activity range information (eg, the northern part of the city), travel time information (eg, commute time), personal preference information (eg, attraction preferences, Restaurant preferences, etc.) and more.
  • the user's location information can be obtained by a satellite navigation and positioning system (for example, GPS); the user's activity range information and travel time information can be obtained through statistical analysis by means of location location and location/time tracking of the user;
  • the preference information can also be obtained through statistical analysis, for example, by statistical analysis of the location search keyword used by the user, or by a classification algorithm such as KNN (K-Nearest Neighbor) algorithm.
  • KNN K-Nearest Neighbor
  • Step 503 Acquire an attribute letter of each geographic information point in the set of geographic information points interest.
  • the electronic device may acquire attribute information of each geographic information point in the set of geographic information points locally or remotely, and the attributes of the geographic information points may include, but are not limited to, time and quantizable parameters.
  • Step 504 detecting a predetermined operation of the user on the map.
  • the interactive operation between the user of the electronic device and the map can be detected, and subsequent processing is performed according to the detected operation.
  • the predetermined operation of the user on the map may be a single interactive operation, such as an operation of displaying a map; or a combination of several interactive operations, such as selecting a specific time and/or time period, and then displaying the combination of the maps. operating.
  • Step 505 in response to the predetermined operation, displaying at least one geographic information point in the set of geographic information points based on the time and quantizable parameters.
  • the electronic device may respond to the operation, based on the two attributes of the time of the geographic information point and the quantifiable parameter. At least one geographic information point in the set of information points is displayed.
  • the display may be adjusted or optimized according to the acquired personalized information of the user. For example, if the user's restaurant preference is a light-tasting restaurant, the geographic information points corresponding to the light-flavored restaurant may be highlighted (eg, highlighted) when the restaurant on the map is displayed.
  • the steps 503, 504, and 505 in the foregoing implementation process are substantially the same as the steps 101, 102, and 103 in the foregoing embodiment, and details are not described herein again.
  • the flow 500 of the map display method in this embodiment is more than the step 501 of receiving the setting request of the geographic information point set and according to the setting request.
  • the solution described in this embodiment helps to achieve a more accurate determination of geographic information points in the set of geographic information points, which not only helps to reduce the amount of information required for map display (eligible) Less geographic information points result in less information to be acquired, which shortens the time it takes to display maps and helps to achieve individuality Information display.
  • the present application provides an embodiment of a map display device, which corresponds to the method embodiment shown in FIG. 1 , and the device may specifically Used in electronic devices.
  • the map display device 600 of the present embodiment includes an acquisition unit 601, a detection unit 602, and a display unit 603.
  • the obtaining unit 601 is configured to acquire attribute information of each geographic information point in the set of geographic information points, the attribute includes time and quantizable parameters;
  • the detecting unit 602 is configured to detect a predetermined operation of the map by the user;
  • the display unit 603 Configuring to display at least one geographic information point in the set of geographic information points based on the time and quantifiable parameters responsive to the predetermined operation detected by detection unit 602.
  • the obtaining unit 601 of the map display device 600 may acquire attribute information of each geographic information point in the set of geographic information points locally or remotely.
  • geographic information points can also have attributes such as time and quantifiable parameters.
  • the detecting unit 602 can detect an interactive operation between the user and the displayed map, and perform subsequent processing according to the detected operation.
  • the predetermined operation of the user on the map may be a single interactive operation, such as an operation of displaying a map; or a combination of several interactive operations, such as selecting a specific time and/or time period, and then displaying the combination of the maps. operating.
  • the display unit 603 may respond to the predetermined operation based on the time of the geographic information point and the quantizable parameter.
  • the map display device 600 further includes: a receiving unit (not shown) configured to receive a setting request of the set of geographic information points, wherein the setting request And including a condition that is required to be divided into the set of geographic information points; a determining unit (not shown) configured to determine a geographic information point included in the set of geographic information points according to the setting request received by the receiving unit.
  • map display device 600 also includes some of its His well-known structures, such as processors, memories, etc., are not shown in FIG. 6 in order to unnecessarily obscure the embodiments of the present disclosure.
  • the units involved in the embodiments of the present application may be implemented by software or by hardware.
  • the described unit may also be provided in the processor, for example, as a processor including an acquisition unit, a detection unit and a display unit.
  • the name of these units does not constitute a limitation on the unit itself in some cases.
  • the obtaining unit may also be described as “configuring attribute information for acquiring each geographic information point in the set of geographic information points. unit”.
  • the present application further provides a computer readable storage medium, which may be a computer readable storage medium included in the apparatus described in the foregoing embodiment, or may exist separately, not A computer readable storage medium that is assembled into a terminal.
  • the computer readable storage medium stores one or more programs that are used by one or more processors to perform the map display method described in this application.

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Abstract

本申请公开了一种地图显示方法和装置。所述方法的一具体实施方式包括：获取地理信息点集合中的每一个地理信息点的属性信息，其中，所述属性包括时间和可量化参数；检测用户对地图的预定操作；响应于所述预定操作，基于所述时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。该实施方式拓展了地图的信息展示能力。

Description

地图显示方法和装置 技术领域
本申请涉及计算机技术领域，具体涉及电子地图技术领域，尤其涉及一种地图显示方法和装置。
背景技术
电子地图又称为数字地图，是利用计算机技术，以数字方式存储和查阅的地图。随着计算机技术的不断发展，电子地图作为纸质地图的补充和替代品，逐渐成为人们获取地理信息的重要手段。传统的电子地图主要展现的是各个地理信息点(Point of Interest)的位置信息，有些电子地图还会提供一些地理信息点的分类信息。然而，需要在传统的电子地图中引入更多的信息从而拓展其信息展示能力。
发明内容
本申请的目的在于提出一种改进的地图显示方法和装置，来解决以上背景技术部分提到的技术问题。
一方面，本申请提供了一种地图显示方法，所述方法包括：获取地理信息点集合中的每一个地理信息点的属性信息，其中，所述属性包括时间和可量化参数；检测用户对地图的预定操作；响应于所述预定操作，基于所述时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
第二方面，本申请提供了一种地图显示装置，所述装置包括：获取单元，配置用于获取地理信息点集合中的每一个地理信息点的属性信息，其中，所述属性包括时间和可量化参数；检测单元，配置用于检测用户对地图的预定操作；显示单元，配置用于响应于所述预定操作，基于所述时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
本申请提供的地图显示方法和装置，通过对地理信息点引入时间和可量化参数这样的属性，丰富了地理信息点的信息量，而后通过响应于用户对地图的预定操作，基于时间和可量化参数对地理信息点集合中的至少一个地理信息点进行显示，从而实现了地理信息点在时间这个维度上的动态显示，拓展了地图的信息展示能力。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：
图1是根据本申请的地图显示方法的一个实施例的流程图；
图2是根据本申请的显示出地图和地图控件的图形用户界面的效果示意图；
图3是根据本申请的利用DBSCAN算法进行噪音点筛选的示意图；
图4是根据本申请的一种地图显示的效果示意图；
图5是根据本申请的地图显示方法的又一个实施例的流程图；
图6是根据本申请的地图显示装置的一个实施例的结构示意图。
具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释相关发明，而非对该发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与有关发明相关的部分。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
请参考图1，其示出了地图显示方法的一个实施例的流程100。本实施例主要以该方法应用于包含有显示屏的电子设备中来举例说明，该电子设备可以包括智能手机、平板电脑、电子书阅读器、MP3播放器(Moving Picture Experts Group Audio Layer III，动态影像专家压缩 标准音频层面3)、MP4(Moving Picture Experts Group Audio Layer IV，动态影像专家压缩标准音频层面4)播放器、膝上型便携计算机和台式计算机等等。所述的地图显示方法，包括以下步骤：
步骤101，获取地理信息点集合中的每一个地理信息点的属性信息。
在本实施例中，电子设备(例如地图应用运行于其上的便携计算机)可以从本地或者远程地获取地理信息点集合中的每一个地理信息点的属性信息。在地理信息系统中，一个地理信息点可以是一栋房子、一个商铺、一个邮筒、一个公交站等，其属性可以包括但不限于时间和可量化参数。即，除了位置这样的固有属性，还可以用时间和可量化参数这样的属性来进一步丰富地理信息点的信息量。
其中，可量化参数是可以被量化表征的参数，例如可以包括但不限于，人流量、空气质量、阳光辐射量、地下水位高度和经济产值，等等。可量化参数通常随着时间或者地点而发生变化。也可以用多种不同的可量化参数来描述同一个地理信息点的信息。在这里，可量化参数可以直接使用相应的传感器来获取，例如利用空气质量传感器来获取各个时刻的PM2.5数值；也可以通过计算等手段来得到，例如统计计算某月的经济产值。
其中，地理信息点的时间属性用来体现地理信息点的各种信息与时间的关联性，例如地理信息点的人流量参数的不同数值对应了不同的数据采集时间。
在本实施例中，地理信息点的属性信息可以存储在电子设备自身的存储器中，这时，该电子设备可以直接本地获得这些信息；上述属性信息还可以存储在远程服务器(例如对电子设备上的地图类应用提供支持的后台服务器)中，这时，该电子设备可以通过有线连接方式或者无线连接方式从远程服务器接收这些信息。上述无线连接方式包括但不限于3G/4G连接、WiFi连接、蓝牙连接、WiMAX连接、Zigbee连接、UWB(ultra wideband)连接、以及其他现在已知或将来开发的无线连接方式。
步骤102，检测用户对地图的预定操作。
在本实施例中，电子设备在其显示屏上显示出地图之后，可以对电子设备的用户与所述地图之间的交互性操作进行检测，并根据所检测到的操作而进行后继处理。在这里，用户对地图的预定操作可以是单一的交互性操作，例如显示地图的操作；也可以是几种交互性操作的组合，例如选择特定的时间和/或时间段，再显示地图的组合操作。
作为示例，电子设备可以借助于图形用户界面(GUI)来显示地图，并借助于图形用户界面中的控件来实现用户对地图的交互性操作。参见图2，图2是显示出地图和地图控件的图形用户界面的效果示意图。控件，例如地图缩放控件201，是图形用户界面中的一种对象，用户可操作该对象来执行某一行为。换言之，用户可以通过与控件的交互来实现对地图的操作，例如，用户可以对地图缩放控件201进行操作，电子设备检测到该操作之后，可以根据该操作实现地图的缩小或放大。图形用户界面中可用的控件是多种多样的，例如，用户还可以借助于时间控件来实现时间参数的输入。
步骤103，响应于预定操作，基于时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
在本实施例中，在电子设备检测到用户对地图的预定操作(例如显示地图的操作)之后，其可以响应于该操作，基于地理信息点的时间和可量化参数这两个属性，对地理信息点集合中的至少一个地理信息点进行显示。
需要说明的是，上述时间可以是一个时间点，例如上午8点，这时，对应的可量化参数(例如人流量)就是相应地理信息点在该上午8点的具体数据，则可以在该地理信息点上直接显示该具体数据或者对该地理信息点加上显示效果(例如渲染上颜色、高亮等)再显示。此外，上述时间也可以是一个时间段，例如上午7点到9点，这时，对应的可量化参数(例如人流量)是一个随着上午7点到9点之间的时间变动而不断变化的量，这时，对相应地理信息点的显示可以用变化着的动态效果而表现。以地理信息点为地铁站，可量化参数为人流量，而时间是上午7点到9点的时间段为例，随着时间从上午7点向着9点的变化，人流量逐渐变大，这时地图上的该地铁站区域被渲染 的颜色，可以是从初始的绿色，逐渐变化成黄色，再逐渐变化成红色。另外，上述时间还可以是实时时间，这时，可以在相应地理信息点上实时显示可量化参数的具体数据；或者用动态效果(例如单一颜色的浓度变化)对该地理信息点进行显示以体现实时性。
本领域技术人员可以理解，对于可量化参数的呈现，还可以使用其他现在已知或者将来开发的显示方式，诸如可量化参数以数值/颜色渲染的方式在相应地理信息点的淡入淡出或者在整个地图页面的淡入淡出；或者，可量化参数在触发(例如鼠标在相应地理信息点上的悬停)后以数值的方式悬浮显示在相应地理信息点上或者作为整个地图页面的背景而显示。本申请在可量化参数的呈现方面没有限制。
在本实施例的一些可选的实现方式中，地理信息点的属性除了时间和可量化参数之外，还可以包括上述可量化参数的变化率，这时，步骤103中的对至少一个地理信息点进行显示，还可以是基于时间、可量化参数和可量化参数的变化率，对所述至少一个地理信息点进行显示。
其中，可量化参数的变化率是用于表征可量化参数变化的明显程度的一个指标，其可以用多种方式来计算得到。作为变化率计算的一个示例，可量化参数的变化率＝可量化参数的变化量/时间的变化量。以水位高度作为可量化参数为例，如果上午8点的水位高度是10米，上午9点的水位高度是15米，则相应水位高度的变化率＝(15-10)/(9-8)＝5米/小时；如果下午3点的水位高度是12米，下午4点的水位高度是18米，则相应水位高度的变化率＝(18-12)/(4-3)＝6米/小时，显然，相对于上午8-9点的水位变化，下午3-4点的水位变化更加明显。这时，基于可量化参数的变化率对所述至少一个地理信息点进行显示，可以是在相应地理信息点上除了显示出可量化参数的数值之外，还显示出变化率的数值。
作为变化率计算的另一个示例，可量化参数的变化率＝噪音点对应的可量化参数的平均值/非噪音点对应的可量化参数的平均值。具体而言，变化率的计算可以如下进行：首先，获取指定时间段(例如10个月)内的特定可量化参数(例如人流量)的多个数据(例如，10个 月内每个月的人流量数据)；其次，通过DBSCAN(Density-BasedSpatial Clustering of Applications with Noise，基于密度对带有噪声的对象的空间聚类)算法或类似的聚类算法筛选获取多个数据中的噪音点；最后，即可利用“噪音点对应的可量化参数的平均值/非噪音点对应的可量化参数的平均值”求得可量化参数的变化率。参见图3，图3是利用DBSCAN算法进行噪音点筛选的示意图。DBSCAN算法是一种代表性的基于密度的聚类算法，在图3所示的实现中，DBSCAN算法使用了基于中心的方法筛选出噪音点。即，首先对指定地理信息点(例如香山)、10个月内每个月的人流量数据进行归一化处理作为DBSCAN算法中的数据点(即图3中的点)；每个数据点的密度通过以该数据点为中心且给定半径的区域(邻域)内的其他数据点的个数来度量；根据数据点的密度将数据点为三类点：核心点，该点在邻域内的密度超过给定的阀值，在图3中，核心点用带标号2的圆示出；边界点，该点不是核心点，但是其邻域内包含至少一个核心点，在图3中，边界点用带标号3的圆示出；噪音点，不是核心点，也不是边界点，在图3中，噪音点用带标号1的圆示出。由上述方式，筛选得到了人流量数据明显不同的点，即噪音点，这些噪音点可以用于地图上相应的地理信息点的进一步显示处理中。例如，如果采用上述方式的筛选结果为，香山在10月和11月的人流量数据为噪音点，数值上表现为这两个月人流量明显比其他月份要多，则可以在地图上按月份显示香山及其人流量数据时，对这两个月的香山区域额外加以渲染(例如渲染上红色)。可选地，这种额外的渲染可以用与可量化参数的显示方式不同的方式来表现。用户根据地图上地理信息点的这种不同的表现方式，可以得知，香山作为景点最美丽的时候可能出现在10月和11月。
在本实施例的一些可选的实现方式中，基于时间、可量化参数和可量化参数的变化率，对所述至少一个地理信息点进行显示，还可以包括呈现出与所述变化率相关联的地理信息点的多媒体资料，其中，该多媒体资料可以包括但不限于，该地理信息点的图片、视频、音频等等。而多媒体资料的呈现可以各种方式，包括但不限于背景呈现(例 如该地理信息点的相关图片作为整个地图或者该地理信息点区域的背景图片)、前景呈现(例如直接呈现该地理信息点的音频，或者浮现出该地理信息点的图片)、响应于鼠标悬停而呈现、以及其他现在已知或将来开发的多媒体资料呈现方式。
在本实施例的一些可选的实现方式中，地理信息点的属性还可以包括该地理信息点的类别(例如，景点，餐饮地，银行，学校，加油站等等)，这时，步骤103中的对地理信息点进行显示，还可以是基于地理信息点的时间、类别、可量化参数和可量化参数的变化率，对该地理信息点进行显示。在此，地理信息点的类别可以是地理信息系统中缺省设置的，例如常见的景点、地铁、银行，餐馆等类别；其也可以是用户对地理信息点手动添加或设置的类别，例如早餐点等；还可以是基于信息处理技术(例如统计分析)而自动识别划分的类别，例如如果一个地点作为“景点”关键词的搜索结果而多次出现达到预定的次数阈值(例如10次)，或者该地点在宣传、广告网页中多次作为“景点”而出现，则可以对该地点设置或添加一个景点类别。显而易见的是，一个地理信息点可以具有多个类别，例如，一个建筑，既可以是银行类别，也可以是景点类别。
作为一种地图显示示例，可以首先在地图上呈现时间轴和/或类别轴；随后，对时间轴上与所述变化率相关联的时间或时间段进行显示；和/或对类别轴上与所述变化率相关联的地理信息点的类别进行显示。参见图4，图4是根据本申请的一种地图显示的效果示意图。如图4所示，图4中的横轴对应时间轴401，纵轴对应类别轴402；时间轴401上的时间“2014.10.20-11.15”表示该时间轴对应的时间的起止日；类别轴402上的文字“景点”，“银行”等表示该类别轴包括的各个地理信息点的各种类别；而图标404是用于地图显示的显示控件，用户对显示控件404的点击可以触发地图随着时间推移的动态显示。时间轴401上特定时间点/时间段上的圆圈405的大小，体现了与该时间点/时间段相关的时间特色信息的丰富程度，即，圆圈越大，可量化参数的变化率所对应的时间落在该时间点/时间段上的地理信息点的数目越多。类别轴402上特定类别上的圆圈406的大小，体现了与该类别 相关的地理信息点的数目，即，圆圈越大，该类别下的地理信息点的数目越多。在图4中，还通过图片栏403，用前景呈现的方式显示出了地理信息点的相关图片，这些图片的显示可以随着时间轴上时间的变化或者类别轴上类别的变化而变化。
在本实施例的一些可选的实现方式中，用户对地图的预定操作可以是几种操作的组合，例如，该预定操作包括了用户对时间的选择操作和/或对类别的选择操作。用户可以在完成上述选择操作之后，再进行地图的显示操作(例如图4中，用户对显示控件404的点击)。其中，用户对时间和/或类别的选择，同样可以借助于图形用户界面的相关控件来进行。完成选择之后，电子设备可以根据选择的时间和/或类别，从上述步骤101中得到的地理信息点集合中选取地理信息点，再对所选取的地理信息点进行显示。作为一种可选的显示方式，可以首先在地图上呈现时间轴和/或类别轴，然后，将所渲染的地理信息点与时间轴和/或类别轴上的标度和/或图标相关联地呈现。例如，如果步骤101中得到的初始地理信息点集合中包括了景点、餐饮地、银行、学校等类别的地理信息点，用户如果选择了景点类别和11月份的时间，则将会从上述初始地理信息点集合去除景点之外的其他类别的地理信息点，并且根据11月份的时间(以及还可以同时根据相关联的可量化参数、可量化参数的变化率)来显示景点类别的地理信息点。在显示具体的景点例如香山时，还可以在时间轴上突出显示11月的标度和/或图标，在类别轴上突出显示景点的标度和/或图标。
对于本实施例而言，应用的场景可以为，用户点击地图上的显示控件之后，电子设备基于地理信息点的可量化参数例如人流量，按照时间维度对地图上的地理信息点进行显示，例如根据人流量的大小而给地理信息点渲染上不同的颜色。本申请的上述实施例提供的方法有助于实现更加丰富的地图信息展现手段。
进一步参考图5，其示出了地图显示方法的又一个实施例的流程500。该地图显示方法的流程500，包括以下步骤：
步骤501，接收地理信息点集合的设定请求。
在本实施例中，电子设备的用户可以通过对该电子设备的屏幕上显示的地图进行交互性操作而发出地理信息点集合的设定请求，其中，该设定请求包括了划分到所述地理信息点集合需满足的条件。
上述条件可以是地理区域条件，即落入所设定的地理区域的地理信息点才会划分到上述地理信息点集合中。例如，用户可以借助于图形用户界面中的控件，诸如城市城区选择控件，设定“北京市海淀区”这样的地理区域条件。此外，上述条件还可以是类别条件，即落入所设定的类别(例如景点)的地理信息点才会划入地理信息点集合。本领域技术人员可以理解，最终得到的条件也可以是上述各种条件的组合。
上述操作完成后，将触发包括了划分到地理信息点集合需满足的条件的设定请求的发出，而电子设备将随后接收该设定请求。
步骤502，根据设定请求，确定地理信息点集合包括的地理信息点。
在本实施例中，电子设备对接收到的设定请求进行分析，获取该设定请求中的条件，再根据该条件，将符合条件的地理信息点划分到地理信息点集合中。
在本实施例的一些可选的实现方式中，除了通过设定请求所包括的条件来确定地理信息点集合所要包括的地理信息点，还可以通过地图的用户的个性化信息来进一步确定地理信息点集合所要包括的地理信息点。用户的个性化信息可以包括但不限于用户的位置信息(例如当前所在位置)、活动范围信息(例如城市的北部区域)、出行时间信息(例如上下班时间)、个人偏好信息(例如景点偏好，餐厅偏好等)等等。其中，用户的位置信息可以通过卫星导航定位系统(例如GPS)获取；用户的活动范围信息、出行时间信息可以借助于对用户的位置定位和位置/时间追踪，经过统计分析而得到；用户的个人偏好信息，也可以经过统计分析而得到，例如通过对用户采用的地点搜索关键词进行统计分析而得到，或者还可以通过KNN(K-NearestNeighbor，K最近邻)算法之类的分类算法对用户所属人群进行分类分析而得到。
步骤503，获取地理信息点集合中的每一个地理信息点的属性信 息。
在本实施例中，电子设备可以从本地或者远程地获取地理信息点集合中的每一个地理信息点的属性信息，地理信息点的属性可以包括但不限于时间和可量化参数。
步骤504，检测用户对地图的预定操作。
在本实施例中，电子设备在其显示屏上显示出地图之后，可以对电子设备的用户与所述地图之间的交互性操作进行检测，并根据所检测到的操作而进行后继处理。在这里，用户对地图的预定操作可以是单一的交互性操作，例如显示地图的操作；也可以是几种交互性操作的组合，例如选择特定的时间和/或时间段，再显示地图的组合操作。
步骤505，响应于预定操作，基于时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
在本实施例中，在电子设备检测到用户对地图的预定操作(例如显示地图的操作)之后，其可以响应于该操作，基于地理信息点的时间和可量化参数这两个属性，对地理信息点集合中的至少一个地理信息点进行显示。
在本实施例的一些可选的实现方式中，还可以根据获取的用户的个性化信息而对上述显示进行调整或优化。例如，如果用户的餐厅偏好是清淡口味的餐厅，则可以在显示地图上的餐厅时，对清淡口味的餐厅所对应的地理信息点进行突出显示(例如加亮)。
在本实施例中，上述实现流程中的步骤503、步骤504和步骤505分别与前述实施例中的步骤101、步骤102和步骤103基本相同，在此不再赘述。
从图5中可以看出，与图1对应的实施例不同的是，本实施例中的地图显示方法的流程500多出了接收地理信息点集合的设定请求的步骤501和根据设定请求确定地理信息点集合包括的地理信息点的步骤502。通过增加的步骤501和502，本实施例描述的方案有助于实现地理信息点集合中的地理信息点的更准确的确定，这不仅有助于减少地图显示所需的信息量(符合条件的地理信息点变少导致需要获取的信息量变少)，从而缩短地图显示所耗费的时间，并且有助于实现个性 化的信息显示。
进一步参考图6，作为对上述各图所示方法的实现，本申请提供了一种地图显示装置的一个实施例，该装置实施例与图1所示的方法实施例相对应，该装置具体可以应用于电子设备中。
如图6所示，本实施例所述的地图显示装置600包括：获取单元601，检测单元602和显示单元603。其中，获取单元601配置用于获取地理信息点集合中的每一个地理信息点的属性信息，该属性包括时间和可量化参数；检测单元602配置用于检测用户对地图的预定操作；显示单元603配置用于响应于检测单元602检测到的预定操作，基于上述时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
在本实施例中，地图显示装置600的获取单元601可以从本地或者远程地获取地理信息点集合中的每一个地理信息点的属性信息。其中，除了位置这样的固有属性，地理信息点还可以具有时间和可量化参数等属性
在本实施例中，检测单元602可以对用户与所显示的地图之间的交互性操作进行检测，并根据所检测到的操作而进行后继处理。在这里，用户对地图的预定操作可以是单一的交互性操作，例如显示地图的操作；也可以是几种交互性操作的组合，例如选择特定的时间和/或时间段，再显示地图的组合操作。
在本实施例中，在检测单元602检测到用户对地图的预定操作(例如显示地图的操作)之后，显示单元603可以响应于该预定操作，基于地理信息点的时间和可量化参数这两个属性，对地理信息点集合中的至少一个地理信息点进行显示。
在本实施例的一个可选实施方式中，上述地图显示装置600还包括：接收单元(未示出)，该接收单元配置用于接收地理信息点集合的设定请求，其中所述设定请求包括划分到所述地理信息点集合需满足的条件；确定单元(未示出)，配置用于根据接收单元接收的设定请求，确定地理信息点集合包括的地理信息点。
本领域技术人员可以理解，上述地图显示装置600还包括一些其 他公知结构，例如处理器、存储器等，为了不必要地模糊本公开的实施例，这些公知的结构在图6中未示出。
本申请实施例中所涉及到的单元可以通过软件的方式实现，也可以通过硬件的方式来实现。所描述的单元也可以设置在处理器中，例如，可以描述为：一种处理器包括获取单元，检测单元和显示单元。其中，这些单元的名称在某种情况下并不构成对该单元本身的限定，例如，获取单元还可以被描述为“配置用于获取地理信息点集合中的每一个地理信息点的属性信息的单元”。
作为另一方面，本申请还提供了一种计算机可读存储介质，该计算机可读存储介质可以是上述实施例中所述装置中所包含的计算机可读存储介质；也可以是单独存在，未装配入终端中的计算机可读存储介质。所述计算机可读存储介质存储有一个或者一个以上程序，所述程序被一个或者一个以上的处理器用来执行描述于本申请的在地图显示方法。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (23)

  1. 一种地图显示方法，其特征在于，所述方法包括：
    获取地理信息点集合中的每一个地理信息点的属性信息，其中，所述属性包括时间和可量化参数；
    检测用户对地图的预定操作；
    响应于所述预定操作，基于所述时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
  2. 根据权利要求1所述的地图显示方法，其特征在于，所述获取地理信息点集合中的每一个地理信息点的属性信息之前，还包括：
    接收地理信息点集合的设定请求，所述设定请求包括划分到所述地理信息点集合需满足的条件；
    根据所述设定请求，确定所述地理信息点集合包括的地理信息点。
  3. 根据权利要求2所述的地图显示方法，其特征在于，所述确定所述地理信息点集合包括的地理信息点，包括：
    获取所述用户的个性化信息；
    根据所述个性化信息，确定地理信息点集合所包括的地理信息点。
  4. 根据权利要求3所述的地图显示方法，其特征在于，所述个性化信息包括以下至少一项：用户的位置信息、活动范围信息、出行时间信息、个人偏好信息。
  5. 根据权利要求1-4之一所述的地图显示方法，其特征在于，所述属性还包括可量化参数的变化率；以及
    所述对地理信息点集合中的至少一个地理信息点进行显示，包括：基于可量化参数的变化率，对所述至少一个地理信息点进行显示。
  6. 根据权利要求5所述的地图显示方法，其特征在于，所述属性 还包括地理信息点的类别；以及
    所述对地理信息点集合中的至少一个地理信息点进行显示，包括：基于类别，对所述至少一个地理信息点进行显示。
  7. 根据权利要求6所述的地图显示方法，其特征在于，所述基于可量化参数的变化率，对所述至少一个地理信息点进行显示，包括：
    在地图上呈现时间轴和/或类别轴；
    对时间轴上与所述变化率相关联的时间或时间段进行显示；和/或
    对类别轴上与所述变化率相关联的地理信息点的类别进行显示。
  8. 根据权利要求5所述的地图显示方法，其特征在于，所述基于可量化参数的变化率，对所述至少一个地理信息点进行显示，包括：
    呈现与所述变化率相关联的地理信息点的多媒体资料，所述呈现采用以下至少一种方式：背景呈现、前景呈现、响应于鼠标悬停而呈现。
  9. 根据权利要求6所述的地图显示方法，其特征在于，所述预定操作包括：对时间的选择操作和/或对类别的选择操作。
  10. 根据权利要求9所述的地图显示方法，其特征在于，所述对地理信息点集合中的至少一个地理信息点进行显示，包括：
    按照选择的时间和/或类别，从所述地理信息点集合中选取地理信息点；
    对所选取的地理信息点进行显示。
  11. 根据权利要求9-10之一所述的地图显示方法，其特征在于，所述对地理信息点集合中的至少一个地理信息点进行显示，包括：
    在地图上呈现时间轴和/或类别轴；
    将所显示的地理信息点与时间轴和/或类别轴上的标度和/或图标 相关联地呈现。
  12. 根据权利要求1所述的地图显示方法，其特征在于，所述可量化参数包括以下至少一项：人流量、空气质量、阳光辐射量、地下水位高度和经济产值。
  13. 一种地图显示装置，其特征在于，所述装置包括：
    获取单元，配置用于获取地理信息点集合中的每一个地理信息点的属性信息，其中，所述属性包括时间和可量化参数；
    检测单元，配置用于检测用户对地图的预定操作；
    显示单元，配置用于响应于所述预定操作，基于所述时间和可量化参数，对地理信息点集合中的至少一个地理信息点进行显示。
  14. 根据权利要求13所述的地图显示装置，其特征在于，所述装置还包括：
    接收单元，配置用于接收地理信息点集合的设定请求，所述设定请求包括划分到所述地理信息点集合需满足的条件；
    确定单元，配置用于根据所述设定请求，确定所述地理信息点集合包括的地理信息点。
  15. 根据权利要求14所述的地图显示装置，其特征在于，所述确定单元进一步包括：
    获取所述用户的个性化信息；
    根据所述个性化信息，确定地理信息点集合所包括的地理信息点。
  16. 根据权利要求15所述的地图显示装置，其特征在于，所述个性化信息包括以下至少一项：用户的位置信息、活动范围信息、出行时间信息、个人偏好信息。
  17. 根据权利要求13-16之一所述的地图显示装置，其特征在于， 所述属性还包括可量化参数的变化率；以及
    所述显示单元进一步包括：基于可量化参数的变化率，对所述至少一个地理信息点进行显示。
  18. 根据权利要求17所述的地图显示装置，其特征在于，所述属性还包括地理信息点的类别；以及
    所述显示单元进一步包括：基于类别，对所述至少一个地理信息点进行显示。
  19. 根据权利要求18所述的地图显示装置，其特征在于，所述显示单元进一步包括：
    在地图上呈现时间轴和/或类别轴；
    对时间轴上与所述变化率相关联的时间或时间段进行显示；和/或
    对类别轴上与所述变化率相关联的地理信息点的类别进行显示。
  20. 根据权利要求17所述的地图显示装置，其特征在于，所述显示单元进一步包括：
    呈现与所述变化率相关联的地理信息点的多媒体资料，所述呈现采用以下至少一种方式：背景呈现、前景呈现、响应于鼠标悬停而呈现。
  21. 根据权利要求18所述的地图显示装置，其特征在于，所述预定操作包括：对时间的选择操作和/或对类别的选择操作。
  22. 根据权利要求21所述的地图显示装置，其特征在于，所述显示单元进一步包括：
    按照选择的时间和/或类别，从所述地理信息点集合中选取地理信息点；
    对所选取的地理信息点进行显示。
  23. 根据权利要求21-22之一所述的地图显示装置，其特征在于，所述显示单元进一步包括：
    在地图上呈现时间轴和/或类别轴；
    将所显示的地理信息点与时间轴和/或类别轴上的标度和/或图标相关联地呈现。
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