CN117555466A - Diversified map visualization device - Google Patents

Diversified map visualization device Download PDF

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Publication number
CN117555466A
CN117555466A CN202311742381.6A CN202311742381A CN117555466A CN 117555466 A CN117555466 A CN 117555466A CN 202311742381 A CN202311742381 A CN 202311742381A CN 117555466 A CN117555466 A CN 117555466A
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China
Prior art keywords
map
instance
chart
module
visual
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Pending
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CN202311742381.6A
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Chinese (zh)
Inventor
张尚武
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Shanghai Tongji Urban Planning & Design Institute Co ltd
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Shanghai Tongji Urban Planning & Design Institute Co ltd
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Priority to CN202311742381.6A priority Critical patent/CN117555466A/en
Publication of CN117555466A publication Critical patent/CN117555466A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
    • G06F16/54—Browsing; Visualisation therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/04817—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/001—Texturing; Colouring; Generation of texture or colour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/20—Drawing from basic elements, e.g. lines or circles
    • G06T11/206—Drawing of charts or graphs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Data Mining & Analysis (AREA)
  • Remote Sensing (AREA)
  • Processing Or Creating Images (AREA)

Abstract

The invention provides a diversified map visualization device, which has the characteristics that a map editing picture is stored in a picture storage module; the input display module is used for displaying a map editing picture to a user so that the user can input a corresponding chart configuration instruction; the map generation module comprises a map application library and is used for generating map examples; the chart generation module is used for generating a corresponding chart instance according to the chart configuration instruction; the coordinate registration module is used for re-registering the coordinate system of the chart instance according to the coordinate system of the map instance to obtain a registered coordinate system; the coordinate conversion module is used for carrying out coordinate conversion on the chart instance according to the registered coordinate system to obtain a conversion chart instance matched with the coordinate information of the map instance; the embedding module is used for loading elements in the conversion chart instance into the map instance to obtain a visual map; the output display module is used for displaying the visual map to a user. In a word, the method can obtain diversified visual maps.

Description

Diversified map visualization device
Technical Field
The invention relates to a data visualization technology, in particular to a diversified map visualization device.
Background
Map visualization is a data visualization technique that aims to graphically present geospatial information for better understanding and analysis of geographic data. The map is used as a basis to display the geographic position and related data through visual elements such as graphics, colors, marks, charts and the like. Such techniques may be used in a variety of fields including Geographic Information Systems (GIS), geographic analysis, city planning, environmental monitoring, market analysis, and the like.
In the field of geographic information visualization, the prior art typically uses a single technical tool or library to implement map visualization. For example, patent application No. 202210441137.5 discloses a map visualization method, device, system and computer program product, and specifically discloses: acquiring a map visual configuration file, wherein the map visual configuration file comprises visual configuration information of a map body and visual configuration information of a map component; analyzing the visual configuration information of the map body to obtain rendering effect attributes of the map body; the visual configuration information of the map component is analyzed to obtain a map component identifier and rendering effect attributes of the map component; rendering a map layer in a map visualization interface based on rendering effect attributes of the map body; and rendering the map component at an upper layer of the map layer to identify a corresponding map component based on the rendering effect attribute of the map component. Because this approach uses a single technical tool to implement map visualization, the need for a diversified visualization map cannot be met.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a diversified map visualization device.
The present invention provides a diversified map visualization apparatus having such features as to include: the picture storage module stores map editing pictures; the input display module is used for displaying a map editing picture to a user so that the user can input a corresponding chart configuration instruction; the map generation module comprises a map application library and is used for generating map examples; the chart generation module is used for generating a corresponding chart instance according to the chart configuration instruction; the coordinate registration module is used for re-registering the coordinate system of the chart instance according to the coordinate system of the map instance to obtain a registered coordinate system; the coordinate conversion module is used for carrying out coordinate conversion on the chart instance according to the registered coordinate system to obtain a conversion chart instance matched with the coordinate information of the map instance; the embedding module is used for loading elements in the conversion chart instance into the map instance to obtain a visual map; and the output display module is used for displaying the visual map to a user, wherein the types of the chart examples comprise charts, thermodynamic diagrams and flow direction maps.
The diversified map visualization device provided by the invention can also have the following characteristics: wherein, the map generation module includes: an initialization unit for generating an empty initial map instance through a map application library; the coordinate system setting unit is used for setting a coordinate system for the initial map instance to obtain a custom map instance; the map layer loading unit is used for loading a base map and a service map layer for the custom map instance to obtain a loaded map instance; and the map tool loading unit is used for adding a map tool to the loaded map instance to obtain the map instance.
The diversified map visualization device provided by the invention can also have the following characteristics: the map tools include a map zoom-in tool, a map zoom-out tool, a full screen tool, and a legend tool, among others.
The diversified map visualization device provided by the invention can also have the following characteristics: the chart configuration instruction is used for setting chart types, data series, coordinate axes, chart titles, legends and styles of chart instances.
The diversified map visualization device provided by the present invention may further have such a feature that it further includes: the monitoring module is used for monitoring the map interaction event to obtain monitoring data; and the chart updating module is used for correspondingly updating the chart instance corresponding to the visual map according to the monitoring data for changing the map state of the visual map so as to keep the map of the visual map and the chart instance synchronous.
The diversified map visualization device provided by the invention can also have the following characteristics: the map interaction event is an event of operating the visual map through external equipment, and the external equipment comprises a mouse and a keyboard.
The diversified map visualization device provided by the invention can also have the following characteristics: wherein the map state changes include scaling and panning of the map.
The diversified map visualization device provided by the present invention may further have such a feature that it further includes: and the working space module is used for storing the visual map, and the output display module is also used for displaying the visual map read from the working space module to a user.
Effects and effects of the invention
According to the diversified map visualization device, on one hand, any HTML element can be added to an Overlay layer of OpenLayers, and a chart generated by ECharts can be embedded into HTML, so that the chart instance based on ECharts can be perfectly embedded into the map instance based on OpenLayers after coordinate transformation, and the construction of a multi-style visual map is realized; on the other hand, the map interaction event is monitored through the monitoring module, and the icon instance is correspondingly updated according to the chart updating module, so that the synchronization of the map instance and the icon instance is realized. Therefore, the diversified map visualization device of the present invention can obtain diversified visualized maps.
Drawings
FIG. 1 is a block diagram of a diversification map visualization device in an embodiment of the invention;
FIG. 2 is a diagram of a data and function selection screen according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a start-stop point setting screen in an embodiment of the invention;
FIG. 4 is a schematic diagram of an example of an icon in an embodiment of the invention;
FIG. 5 is a schematic diagram of a visual map in an embodiment of the invention;
FIG. 6 is a schematic diagram of a display interface of an output display module according to an embodiment of the invention;
fig. 7 is a schematic flow chart of the diversified map visualization device according to the present embodiment of the present invention for generating a visualized map.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the diversified map visualization device of the present invention with reference to the accompanying drawings.
In this embodiment, a diversified map visualization apparatus is provided for providing a visual map to a user, the visual map being a visual map having a flow direction map.
Fig. 1 is a block diagram of a diversification map visualization device in an embodiment of the present invention.
As shown in fig. 1, the diversified map visualization apparatus 100 includes a screen storage module 11, an input display module 12, a map generation module 13, a chart generation module 14, a coordinate registration module 15, a coordinate conversion module 16, an embedding module 17, a listening module 18, a chart update module 19, a workspace module 20, an output display module 21, and a control module 22 that controls the above-described modules.
The screen storage module 11 stores a map editing screen, which in this embodiment includes a data and function selection screen 111 and a start and stop point setting screen 112.
The input display module 12 is used for sequentially displaying data and function selection screen 111 and start and stop point setting screen 112 to a user, and enabling the user to input corresponding chart configuration instructions.
Fig. 2 is a schematic diagram of a data and function selection screen according to an embodiment of the invention.
As shown in fig. 2, the data and function selection screen 111 has a function selection area 111a and a data selection area 111b.
The user selects the type of visual map to be generated in the function selection area 111a, including visual maps with flow direction maps, visual maps with charts, visual maps with thermodynamic diagrams, and the like.
After selecting the corresponding visual map type, the user selects the data service of the published point data and line data in the data selection area 111b, and selects a statistical range, wherein the statistical range is any one of an area range, a drawing range and an uploading range in the embodiment, and further defines the data in the data service according to the range.
Fig. 3 is a schematic diagram of a start-stop point setting screen in an embodiment of the present invention.
As shown in fig. 3, the start-stop point setting screen 112 has a start-point setting area 112a, an end-point setting area 112b, and a flow property setting area 112c.
The user selects a position of at least one starting point in the starting point setting area 112a, and sets a shape, size, and color for the starting point.
The user selects the position of at least one termination point in the termination point setting area 112b, and sets the shape, size, and color for the termination point.
The user selects flow direction attribute information to be rendered in the data service in the flow attribute setting area 112c and sets a rendering style including a rendering level, a color band, a transparency, and a color symbol.
In the present embodiment, setting data input by the user in the data and function selection screen 111 and the start-stop point setting screen 112 is used as a chart configuration instruction for generating a corresponding flow map.
Further, for a visual map with a chart, chart configuration instructions are used to set chart types, data series, coordinate axes, chart titles, legends, and styles.
The chart types include line charts, bar charts, pie charts, and the like.
The series of data is specific data in the graph, the specific data comprising an array, each element in the array representing a data point.
The coordinate axes include coordinate axis types, scales, labels, and the like.
The chart title includes a main title and a sub-title.
Legend is used to identify the different data series.
The style settings include line color, bar chart color, label style, etc.
The map generating module 13 includes a map application library for generating map instances, in this embodiment, the map application library is an OpenLayers library, which is a JavaScript library for building interactive map applications, and in addition, the commonly used map application libraries such as ArcGIS API for JavaScript and Geoscene may also be used as the map application library set in the map generating module 13.
Wherein the map generation module 13 includes: an initialization unit 131, a coordinate system setting unit 132, a layer loading unit 133, and a map tool loading unit 134.
The initialization unit 131 is configured to generate an empty initial map instance through the map application library, and in this embodiment, an empty map instance is created as the initial map instance through an ol.map method using the OpenLayers library.
The coordinate system setting unit 132 is configured to set a coordinate system for the initial map instance to obtain a custom map instance.
The layer loading unit 133 is configured to load a base map and a service layer on a custom map instance to obtain a loaded map instance, where in this embodiment, the method for loading the base map and the service layer is an OpenLayers layer loading method, and the base map is used to display specific map content.
The map tool loading unit 134 is used for adding a map tool to the loaded map instance to obtain the map instance.
The map tools include a map zoom-in tool, a map zoom-out tool, a full screen tool, and a legend tool, among others.
The chart generating module 14 is configured to generate a corresponding chart instance according to a chart configuration instruction, where in this embodiment, the chart configuration instruction received by the chart generating module 14 is a JavaScript object containing all configuration options, and the chart generating module 14 obtains the chart instance according to a blank echorts chart instance initialized by combining the JavaScript object with an API.
The types of chart examples include charts, thermodynamic diagrams and flow direction maps, among others.
Fig. 4 is a schematic diagram of an example of an icon in an embodiment of the invention.
As shown in fig. 4, the chart instance is a flow direction map generated by the chart configuration instructions.
The coordinate registration module 15 is configured to re-register the coordinate system of the chart instance according to the coordinate system of the map instance, to obtain a registered coordinate system.
The coordinate conversion module 16 is configured to perform coordinate conversion on the chart instance according to the registered coordinate system, so as to obtain a converted chart instance matched with the coordinate information of the map instance.
The embedding module 17 is configured to load elements in the conversion chart instance into the map instance to obtain a visual map, and in this embodiment, the embedding module 17 loads DOM elements in the conversion chart instance, i.e. the ECharts chart layer, into the map instance, i.e. the OpenLayers map instance, through a layer loading method of OpenLayers, so as to obtain the visual map.
Fig. 5 is a schematic diagram of a visual map in an embodiment of the invention.
As shown in fig. 5, the visual map is a visual map with a flow direction map.
The monitoring module 18 is configured to monitor the map interaction event to obtain monitored data.
The map interaction event is an event of operating the visual map through external equipment, and the external equipment comprises a mouse and a keyboard.
The chart updating module 19 is configured to update the chart instance corresponding to the visual map according to the monitored data that changes the map state of the visual map, so that the map and the chart instance of the visual map are kept synchronous.
Wherein the map state changes include scaling and panning of the map.
The workspace module 20 is used to store a visual map.
The output display module 21 is used to display a visual map to the user, which is read from the workspace module 20 or received from the embedding module 17.
Fig. 6 is a schematic diagram of a display interface of the output display module according to an embodiment of the invention.
As shown in fig. 6, the display interface that the output display module 21 displays to the user includes a map display area 21a, a result display area 21b, and a save key 21c.
The map display area 21a is used to display a visual map.
The result display area 21b is used to display the result related to the chart configuration instruction.
The user causes the control module 22 to control the workspace module 20 to store the visual map and the associated results by clicking the save key 21c.
The control module 22 stores a control program for controlling each module.
Fig. 7 is a schematic flow chart of the diversified map visualization device according to the present embodiment of the present invention for generating a visualized map.
As shown in fig. 7, the diversified map visualization apparatus 100 generates a visual map according to an icon configuration instruction input by a user, comprising the steps of:
in step S1, the input display module 12 is used to sequentially display the data in the screen storage module 11, the function selection screen 111 and the start and stop point setting screen 112 to the user, and let the user input a corresponding chart configuration instruction.
In step S2, an empty initial map instance is generated by the map application library using the initializing unit 131.
In step S3, the coordinate system setting unit 132 is used to set the coordinate system for the initial map instance to obtain the customized map instance.
Step S4, the map layer loading unit 133 is adopted to load the base map and the service map layer on the custom map instance to obtain a loaded map instance.
In step S5, the map tool loading unit 134 is used to add a map tool to the loaded map instance to obtain the map instance.
Step S6, the chart generation module 14 is adopted to generate a corresponding chart instance according to the chart configuration instruction.
In step S7, the coordinate registration module 15 is used to re-register the coordinate system of the chart instance according to the coordinate system of the map instance, so as to obtain a registered coordinate system.
In step S8, the coordinate conversion module 16 is used to perform coordinate conversion on the chart instance according to the registered coordinate system, so as to obtain a converted chart instance matched with the coordinate information of the map instance.
Step S9, the elements in the conversion chart instance are loaded into the map instance by adopting the embedding module 17, and a visual map is obtained.
In step S10, the visual map is displayed to the user using the output display module 21.
Effects and effects of the examples
According to the diversified map visualization device related to the embodiment, on one hand, any HTML element can be added to an Overlay layer of OpenLayers, and a chart generated by ECharts can be just embedded into HTML, so that the chart instance based on ECharts can be perfectly embedded into the map instance based on OpenLayers after coordinate transformation, and the construction of a multi-style visual map is realized; on the other hand, the map interaction event is monitored through the monitoring module, and the icon instance is correspondingly updated according to the chart updating module, so that the synchronization of the map instance and the icon instance is realized. In a word, the method can obtain diversified visual maps.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims (8)

1. A diversification map visualization apparatus for providing a visual map to a user, comprising:
the picture storage module stores map editing pictures;
the input display module is used for displaying the map editing picture to the user so that the user can input a corresponding chart configuration instruction;
the map generation module comprises a map application library and is used for generating map examples;
the chart generation module is used for generating a corresponding chart instance according to the chart configuration instruction;
the coordinate registration module is used for re-registering the coordinate system of the chart instance according to the coordinate system of the map instance to obtain a registered coordinate system;
the coordinate conversion module is used for carrying out coordinate conversion on the chart instance according to the registered coordinate system to obtain a conversion chart instance matched with the coordinate information of the map instance;
the embedding module is used for loading elements in the conversion chart instance into the map instance to obtain the visual map;
an output display module for displaying the visual map to the user,
the types of the chart examples comprise charts, thermodynamic diagrams and flow direction maps.
2. The diversification map visualization device of claim 1, wherein:
wherein, the map generation module includes:
an initialization unit, configured to generate an empty initial map instance through the map application library;
the coordinate system setting unit is used for setting a coordinate system for the initial map instance to obtain a custom map instance;
the map layer loading unit is used for loading a base map and a service map layer on the custom map instance to obtain a loaded map instance;
and the map tool loading unit is used for adding a map tool to the map instance to obtain the map instance.
3. The diversification map visualization device of claim 2, wherein:
the map tool comprises a map magnifying tool, a map shrinking tool, a full screen tool and a legend tool.
4. The diversification map visualization device of claim 1, wherein:
the chart configuration instruction is used for setting chart types, data series, coordinate axes, chart titles, legends and styles of the chart examples.
5. The diversification map visualization device of claim 1, further comprising:
the monitoring module is used for monitoring the map interaction event to obtain monitoring data;
and the chart updating module is used for correspondingly updating the chart instance corresponding to the visual map according to the monitoring data for changing the map state of the visual map so as to keep the map of the visual map and the chart instance synchronous.
6. The diversification map visualization device of claim 5, wherein:
wherein the map interaction event is an event of operating the visual map through external equipment,
the external device comprises a mouse and a keyboard.
7. The diversification map visualization device of claim 5, wherein:
wherein the map state changes include scaling and panning of the map.
8. The diversification map visualization device of claim 1, further comprising:
a working space module for storing the visual map,
wherein the output display module is further configured to display the visual map read from the workspace module to the user.
CN202311742381.6A 2023-12-18 2023-12-18 Diversified map visualization device Pending CN117555466A (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

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