CN114546577A - Data visualization method and system - Google Patents
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Abstract
The application provides a data visualization method and a data visualization system, wherein data used for rendering and configuration information are obtained, a Web component matched with the type of the data is used, and the data are rendered and displayed according to the configuration information. Because multiple types of Web components are provided, visualization of multiple different types of data can be achieved.
Description
Technical Field
The present application relates to the field of electronic information, and in particular, to a data visualization method and system.
Background
More and more user systems need access not only to traditional mapping data types (such as vector data and image data), but also to new mapping data types (such as oblique photography models, BIM, laser point clouds, etc.), and various big data with location information (such as data from internet, mobile internet and internet of things). The data types accessed by the system are more and more complicated, and correspondingly, the visualization requirement on the data is higher. However, the existing visualization design system is multi-sided to the function of the analysis report, and cannot support multiple forms of visualization.
Disclosure of Invention
The application provides a data visualization method and a data visualization system, and aims to solve the problem that multiple forms of visualization cannot be supported.
In order to achieve the above object, the present application provides the following technical solutions:
a data visualization system, comprising:
the system comprises a data management module, a visualization configuration module and a rendering module;
the data management module is used for acquiring data for rendering;
the visual configuration module is used for acquiring configuration information;
the rendering module comprises a plurality of types of Web components; and the rendering module is used for rendering and displaying the data according to the configuration information by using the Web component matched with the type of the data.
Optionally, the visualization configuration module is configured to obtain configuration information, and includes:
the visual configuration module is specifically used for acquiring component association configuration information and interaction event configuration information;
the rendering module is configured to render and display the data according to the configuration information by using a Web component matched with the type of the data, and includes:
the rendering module is specifically configured to associate the interaction sub-component with the component association configuration information, and render the component and the interaction sub-component.
Optionally, the rendering module is further configured to:
generating a related monitor and a trigger according to the interaction event configuration information;
the monitor is used for setting a monitoring event for the interactive sub-component, and the trigger is used for responding to the monitoring event monitored by the monitor and triggering and executing a related event configured in advance for the monitoring event.
Optionally, the visualization configuration module is configured to obtain configuration information, and includes:
the visual configuration module is specifically used for acquiring the layout of components in a display interface of any one equipment end;
the rendering module is configured to render and display the data according to the configuration information by using a Web component matched with the type of the data, and includes:
the rendering module is specifically configured to match a set of layout for rendering according to the size of a display window of the display device, calculate the width and height of pixels rendered by the component according to the size of the display window and the matched layout, and draw in the current browser by using the width and height.
Optionally, the layout includes:
the number of rows and columns occupied by the components, and the number of rows and columns occupied by the display window.
Optionally, the rendering module is configured to match a set of layouts according to a size of a display window of the display device, and includes:
the rendering module is specifically configured to match the PC end layout when the width of the display window is greater than a first numerical value, and match the flat panel end or the mobile phone end layout according to the ratio of the length to the width of the window when the width of the display window is not greater than the first numerical value.
Optionally, the method further includes:
and the application release module is used for acquiring the configuration information from the visual configuration module, hosting and storing the configuration information by an online server, and generating and displaying the two-dimensional code by using an application address fed back by the online server.
Optionally, the method further includes:
the mobile equipment is used for acquiring an access address by scanning the two-dimensional code and sending an access request to the online server;
the visualization configuration module is further to: acquiring configuration information sent by the online server;
the rendering module is further to:
sending the data acquired from the data source and the configuration information sent by the online server to the mobile equipment;
the mobile device is further configured to: and rendering the data sent by the rendering module according to the configuration information sent by the rendering module.
Optionally, the method further includes:
and the authority control module is used for setting the use authority of the user and/or the group to the function of the system.
A method of data visualization, comprising:
acquiring data and configuration information for rendering;
and rendering and displaying the data according to the configuration information by using the Web component matched with the type of the data.
The data visualization method and system obtain data and configuration information used for rendering, and render and display the data according to the configuration information by using the Web component matched with the type of the data. Because multiple types of Web components are provided, visualization of multiple different types of data can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a visualization system disclosed in an embodiment of the present application;
FIG. 2 is a diagram illustrating an exemplary structure of a map component disclosed in an embodiment of the present application;
FIG. 3 is a diagram illustrating an exemplary structure of a graph assembly disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
Fig. 1 is a data visualization system disclosed in an embodiment of the present application, including: the system comprises a data management module, a visualization configuration module, a rendering module, an application release module and an authority control module.
The functions of the various modules will be described in detail below in conjunction with the functions that can be implemented by the system shown in fig. 1.
1. The visual configuration module is used for acquiring configuration information in a man-machine interaction mode and configuring the system by using the configuration information.
Specifically, the configuration of the visual design module includes a layout configuration submodule, an attribute configuration submodule, and an interaction event configuration submodule.
And the attribute configuration submodule is used for configuring the attributes and styles of the Web component. And the interaction event configuration submodule is used for configuring the interaction events of the Web component. The layout configuration submodule is used for configuring the layout of the application.
That is, the visualization design module may obtain the configuration information of the attributes, the interaction events, and the layout of the application of the Web component through a human-computer interaction manner (including but not limited to a drag operation on an interaction interface), and apply the configuration information to the corresponding module in the system as the configuration object.
It is to be appreciated that the visualization design module can also store configuration information. Specifically, each submodule stores respective configuration information.
2. The data management module is used for extracting data for rendering and providing caching and query functions of the data.
Specifically, the data management module includes a data extraction sub-module, a data cache sub-module, and a data query sub-module.
The data extraction submodule dynamically extracts a map description JSON file from a server indicated by the data service link through the managed data service link, wherein the JSON file describes a standard format of map content in a data source and comprises the following steps: the map information comprises spatial information such as the name of the map, a service address, a base map of the map, a vector layer superposed in the map, a visual layer superposed in the map, a projection coordinate system of the map, a range and a central point of the map and the like.
Wherein the types of the service address include: the system comprises a SuperMap REST map service, a SuperMap REST data service, a SuperMap REST three-dimensional service, a SuperMap REST real-time data service, an Internet map service, a three-way map service and a three-way data service.
And the data extraction submodule analyzes the map description JSON file and extracts data from the server side through the service address, wherein the streaming data service needs to establish connection through WebSocket of HTML5 to obtain the data, and other services obtain the data through an HTTP/HTTPS protocol.
Examples of extracted source data formats include: the server comprises the following components stored in a SuperMap iPortal/iServer/iEdge/Online server: the map data comprises two-dimensional map tiles, two-dimensional vector tiles, three-dimensional scene tiles, three-dimensional model tiles, Excel data, CSV data, JSON data, GeoJSON data, stream data and the like. Stored in an internet map server: street map tiles, terrain tiles, image tiles, annotation tiles, and the like. Stored in the three-party server: time sequence JSON data, Excel data, CSV data, JSON data, GeoJSON data, and the like. Stored in the three-party server: video streams, pictures, web pages, etc.
The data caching submodule is used for caching the data extracted by the data extracting submodule to extract data. The data query submodule may search the data cache submodule for data matching the query instruction in response to the query instruction (input by the user), and output a search result.
3. And the rendering module acquires data and visualizes the data according to the configuration information.
The rendering module includes: the system comprises a data acquisition submodule, a configuration information acquisition submodule, a Web component, a component rendering submodule and an interactive event processing submodule.
The data acquisition submodule is used for acquiring the data extracted by the data extraction submodule. The configuration information acquisition submodule is used for acquiring the configuration information acquired by the visual configuration submodule.
In fig. 1, the Web component includes: chart components and map components are examples. In some implementations, the Web component may also include portions not shown in fig. 1, some examples of which are shown in table 1:
TABLE 1
It is to be understood that, in the embodiments of the present application, only visualization of the chart data and the map data is described as an example.
And the assembly rendering submodule sends the map data and the configuration information of the map assembly to the map assembly, and the map assembly renders and displays the map according to the map data and the configuration information of the map assembly.
For example, as shown in fig. 2, in combination with fig. 2, the component rendering sub-module delivers the map data and the configuration information of the map component to a View Model layer (ViewModel) of the map component for service processing, then delivers the map data and the configuration information of the map component to the Model layer (Model) for data conversion, and then delivers the map data and the configuration information to the View layer (View) by calling an interface provided by an HTML5 Canvas/WebGL object, according to the attribute configuration information: the data source information, the style information, the layout information, and the like sequentially draw map base maps (two-dimensional maps, two-dimensional images, three-dimensional topography, three-dimensional models, point cloud data, oblique photography data, vector tiles, and the like), superimposed vector layers (JSON data, GeoJSON data, and the like), superimposed visual layers (thematic maps, thermodynamic maps, grid maps, density maps, O-D maps, and the like) and perform rendering adjustment on the rotation angle, the vertical angle, the light source information, and the like of the map within the current screen range.
And the assembly rendering sub-module sends the chart data and the configuration information of the chart assembly to the chart assembly, and the chart assembly renders and displays the chart according to the chart data and the configuration information of the chart assembly.
For example, as shown in fig. 3, in combination with fig. 3, the component rendering sub-module delivers the chart data and the configuration information of the chart component to a View Model layer (ViewModel) of the chart component for service processing, then delivers the chart data and the configuration information of the chart component to the Model layer (Model) for data conversion, and then delivers the chart data and the configuration information to the View layer (View) by calling an interface provided by an HTML5 Canvas/WebGL object, according to the attribute configuration information: data source information, style information, layout information, and the like, and performing visual chart rendering on the data.
4. And the component rendering submodule and the interactive event processing submodule jointly realize the interactive function of the view.
The configuration of the interactivity event may include component association configuration information as well as interactivity event configuration information.
The component rendering sub-module associates a corresponding map interaction sub-component (indicated by the component association configuration information) on a View layer (View) of the map component through the component association configuration information, and then performs rendering of the map sub-component, so that a user can perform interaction operations on the rendered map and the geographic data through an interface of the map sub-component, for example, interaction operations such as zooming, translation and calculation on the map, and interaction operations such as layer management, search and query on the rendered geographic data.
The map interaction sub-component refers to a component (control) capable of realizing human-computer interaction operation, and some examples of the map interaction sub-component are shown in table 2:
TABLE 2
And the interactive event processing submodule generates a related monitor and a trigger according to the interactive event configuration information. The listener sets a listening event to the map interaction subcomponent, and once the listener listens to the listening event, the listener triggers an associated trigger that triggers execution of the associated event pre-configured for the listening event to respond to the listening event.
It will be appreciated that the correspondence of listeners, triggers, listening events, and associated events may be configured in an interactive event configuration.
It is to be understood that the above setting of a listening event to a map interaction subcomponent by a listener is merely an example, and that a listening event may be set by all displayable components.
Table 3 is an example of snoop events that a listener can set, and components that can set snoop events:
TABLE 3
Examples of associated events corresponding to triggers, and components that can set associated events, are shown in Table 4:
TABLE 4
In conjunction with the examples of tables 3 and 4, examples of some interaction scenarios that can be implemented are shown in table 5:
TABLE 5
5. The visualization configuration module and the component rendering module provide a display interface of the adaptive screen.
The layout configuration submodule in the visualization configuration module comprises: the system comprises a PC terminal configuration submodule, a tablet terminal configuration submodule and a mobile phone terminal configuration submodule.
And the configuration submodule at any equipment end is used for configuring the layout of the components in the display interface of the equipment. The layout of each set (display interface of any device) comprises: the number of rows and columns occupied by the components, and the number of rows and columns for the entire window (i.e., for the entire window). In one implementation, the PC side layout comprises a window width greater than 540 pixels, and the tablet side and cell phone side layouts comprise a window width less than or equal to 540 pixels.
The rendering module also includes a layout rendering sub-module.
The layout rendering submodule is used for matching a set of layouts for rendering according to the sizes (the width and the height of a real display window) of the real display window of the display equipment: the width of the window is larger than 540 pixels, the PC end layout is matched, the width of the window is smaller than or equal to 540 pixels, and the flat end or mobile phone end layout is matched according to the ratio of the length to the width of the window (the ratio of the mobile phone is larger than that of the flat plate).
The layout rendering sub-module is further to: according to the size of the real display window (the width and the height of the real display window) and the matched layout (the number of rows and columns occupied by the components and the number of rows and columns of the whole window), the width (noted as P1) and the height (noted as P2) of the pixel finally rendered by the components are calculated, and the final rendering is carried out in the current browser by using P1 and P2.
In some implementations, P1 ═ C1 (W1/8/L1) and P2 ═ C2 (W2/8/L2).
P1 is the pixel width of the component rendering, P2 is the pixel height of the component rendering, W1 is the width of the real window, W2 is the height of the real window, L1 is the whole column number of the window, L2 is the whole row number of the window, C1 is the column number occupied by the component, and C2 is the row number occupied by the component.
6. The mobile equipment realizes quick preview by scanning the two-dimensional code.
The application publishing module obtains configuration information (information for configuring Web components, data sources, layouts, styles, and the like) from the visualization configuration module, and the online server hosts and stores the configuration information. Online servers include, but are not limited to: SuperMap iPortal or SuperMap Online. And the online server feeds back the application address to the application publishing module, and the application publishing module generates and displays the two-dimensional code by using the application address.
The mobile equipment obtains an access address by scanning the two-dimensional code and sends an access request to the online server, the online server sends the hosted configuration information to the mobile equipment, and the rendering module on the mobile equipment renders the data obtained from the data source according to the configuration information.
7. The permission control module is used for setting the permission of application retrieval, viewing and editing aiming at the appointed user/group, and can disclose the permission of retrieval, viewing and editing to all users.
In summary, the system shown in fig. 1 has the following advantages:
1. professional geographic data visualization
Professional geographic data visualization is supported: two-dimensional maps, two-dimensional images, three-dimensional terrain, three-dimensional models, point cloud data, oblique photography data, vector tiles, time sequence data (which can be real-time monitoring data, time sequence position data, time sequence satellite images, time sequence meteorological data and the like) and the like; support rich visualization of geographic mapping efforts: the system comprises a thematic map, a thermodynamic map, a grid map, a density map, an O-D map and the like, and simultaneously realizes the sharing of data among a plurality of Web components and an efficient reading and updating strategy.
2. Support for interactive operation, multi-map interaction
The map component and the visual chart component can be operated interactively, and various kinds of interaction events can be configured for operations such as zooming, clicking, moving of the map, clicking of the visual chart and the like, for example: the data are filtered, the data are switched, the elements are highlighted, the map is zoomed in and zoomed out, the map is added to the map, and the like, meanwhile, a plurality of map components can be linked for visualization, and a user is assisted in data exploration, early warning, scheduling and other scenes.
3. Automatic window adaptation between PC end and mobile end
The self-adaptive layout of any size screen such as large screen equipment, wide screen equipment, desktop equipment and mobile terminal equipment is supported, the self-defined editing and storage of the layout of the mobile terminal equipment (tablet personal computer and mobile phone) are supported, and the editing and storage of the layout by selecting the specified size or the self-defined super-wide screen size are supported, so that the screen with any size is adapted. After the application is created, the effect can be quickly previewed in the mobile terminal device in a two-dimensional code scanning mode.
The functions described in the method of the embodiment of the present application, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, part of the contribution to the prior art of the embodiments of the present application or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including several instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to 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 (10)
1. A data visualization system, comprising:
the system comprises a data management module, a visualization configuration module and a rendering module;
the data management module is used for acquiring data for rendering;
the visual configuration module is used for acquiring configuration information;
the rendering module comprises a plurality of types of Web components; and the rendering module is used for rendering and displaying the data according to the configuration information by using the Web component matched with the type of the data.
2. The system of claim 1, wherein the visualization configuration module is configured to obtain configuration information, comprising:
the visual configuration module is specifically used for acquiring component association configuration information and interaction event configuration information;
the rendering module is configured to render and display the data according to the configuration information by using a Web component matched with the type of the data, and includes:
the rendering module is specifically configured to associate the interaction sub-component with the component association configuration information, and render the component and the interaction sub-component.
3. The system of claim 2, wherein the rendering module is further configured to:
generating a related monitor and a trigger according to the interaction event configuration information;
the monitor is used for setting a monitoring event for the interactive sub-component, and the trigger is used for responding to the monitoring event monitored by the monitor and triggering and executing a related event configured in advance for the monitoring event.
4. The system according to any one of claims 1-3, wherein the visualization configuration module is configured to obtain configuration information, including:
the visual configuration module is specifically used for acquiring the layout of components in a display interface of any one equipment end;
the rendering module is configured to render and display the data according to the configuration information by using a Web component matched with the type of the data, and includes:
the rendering module is specifically configured to match a set of layout for rendering according to the size of a display window of the display device, calculate the width and height of pixels rendered by the component according to the size of the display window and the matched layout, and draw in the current browser by using the width and height.
5. The system of claim 4, wherein the layout comprises:
the number of rows and columns occupied by the components, and the number of rows and columns occupied by the display window.
6. The system of claim 4, wherein the rendering module is configured to match a set of layouts according to a size of a display window of a display device, comprising:
the rendering module is specifically configured to match the PC end layout when the width of the display window is greater than a first numerical value, and match the flat panel end or the mobile phone end layout according to the ratio of the length to the width of the window when the width of the display window is not greater than the first numerical value.
7. The system of claim 1, further comprising:
and the application publishing module is used for acquiring the configuration information from the visual configuration module, hosting and storing the configuration information by an online server, and generating and displaying the two-dimensional code by using the application address fed back by the online server.
8. The system of claim 7, further comprising:
the mobile equipment is used for scanning the two-dimensional code to obtain an access address and sending an access request to the online server;
the visualization configuration module is further to: acquiring configuration information sent by the online server;
the rendering module is further to:
sending the data acquired from the data source and the configuration information sent by the online server to the mobile equipment;
the mobile device is further configured to: and rendering the data sent by the rendering module according to the configuration information sent by the rendering module.
9. The system of claim 1, further comprising:
and the authority control module is used for setting the use authority of the user and/or the group to the function of the system.
10. A method of data visualization, comprising:
acquiring data and configuration information for rendering;
and rendering and displaying the data according to the configuration information by using the Web component matched with the type of the data.
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