All Products
Search

This Product

    DataV:isocurface layer (v4.x)

    Document Center

    DataV:isocurface layer (v4.x)

    Last Updated:Dec 03, 2024

    This paper introduces the meaning of each configuration items of isosurface layer.

    Chart style

    The isosurface layer is a subcomponent of the basic plane map 4.0, which is suitable for making known vector point data into raster area chart for large screen display, for example, using the isosurface component to interpolate the national air quality map in real time to meet the visualization needs of some meteorological and other industries. image

    Style Panel image

    • Search Configuration: Click the Search configuration items icon imagein the upper-right corner of the Style panel. In the Search Configuration panel, enter the name of the configuration items that you want to search for and locate the configuration items. Fuzzy match is supported. For more information, see Search configuration items.

    • General: Specify the general configuration items of the isosurface layer.

      Metric

      description

      Visible Level

      This parameter specifies the visible level of the isosurface layer, which is visible within the specified level range and invisible outside the level.

      Opacity

      The opacity of the isosurface layer, ranging from 0 to 100 in %. The larger the value, the more opaque the isocurface layer.

    • Graphics: Set the graphics configuration items of the isosurface layer.

      Metric

      description

      Area Color

      For more information about how to configure the color of each area in the isosurface layer, see Color mapper instructions.

      Area Stroke

      The color, thickness, and line type of the stroke line in each area of the isosurface layer.

      Note

      The line type supports numeric input, such as 4,4. The first number indicates the length of the solid line, and the second number indicates the length of the interval.

    Data Sources panel image

    • Interpolation Point Data Interface

      Column

      Description

      lng

      The longitude of the interpolation point.

      lat

      The latitude of the interpolation point.

      value

      The value of the interpolation point. DataV adjusts the color rendering effect of the isosurface layer based on the value and the area color mapping rendering configuration items in the configuration panel.

    • Clipping boundary data interface

      The clipping boundary defines the range of interpolation points that need to be rendered.

    Configure data items

    Description

    Data sources

    You can use the code editor or visual editor to view the data fields contained in the widget. You can also modify the data type to flexibly configure the component data.

    Data Mapping

    If you need to customize chart field configurations, you can set different field mapping content in the Data Mapping module and field mapping these content to the corresponding fields of the widget. This allows you to match data without modifying the fields in the data source. You can also click the imageicon to configure the field style.

    Configure a filter

    Turn on Filter, select an existing data filter or create a data filter, and configure a data filter script to filter data. For more information, see Manage data filters.

    Data Response Result

    The Data Response Result section displays widget data in real time. If the data source of the widget changes, this section displays the latest data. If the system response is delayed, you can click the imageicon on the right to view the data response result. You can also click the imageicon on the right to obtain the latest data of the widget. You can also click View Example to view an example of the response result of the current component.

    Forbid Loading

    If you select the check box, you will not see the loaded content during component initialization when you update the component and preview the data kanban. If you select the check box, the opposite is true. By default, the status is deselected.

    Controlled Mode

    If you select the check box, the component does not request data in the initialized state, and only requests data by using global variables or the method configured in Blueprint Editor. If you clear the check box, you can use automatic update to request data. By default, the status is deselected.

    Auto Data Request

    Select the check box to manually enter the time frequency of polling to set dynamic polling. If you clear the page, the page is not automatically updated. You need to manually refresh the page or use Blueprint Editor and global variable events to trigger a request to update data.

    Advanced Panel

    This component has no event configuration.

    Blueprint Interaction

    1. Click the imageicon in the upper-left corner to go to the Blueprint page.

    2. On the Layer Nodes tab, add the widget to the main canvas.

    3. View blueprint configuration parameters. image

      • Event

        Event

        Description

        When the interpolation point data interface request is completed

        The event that is thrown after the interpolation point data interface request is returned and processed by the filter. It also throws the processed JSON-formatted data. For more information about specific data examples, see the Data Response Result section of the Data Source tab in the right-side configuration panel of the canvas editor.

        When the pruning boundary data interface request is completed

        The event that is thrown after the request for clipping boundary data is returned and processed by the filter. The event also throws the processed JSON data. For more information about specific data examples, see the Data Response Result section of the Data Source tab in the right-side configuration panel of the canvas editor.

      • Action

        Action

        Description

        Import Interpolation Point Data Interface

        After data of a widget is processed in accordance with its drawing format, the widget is imported for redrawing. You do not need to request server data again. For more information about specific data examples, see the Data Response Result section of the Data Source tab in the right-side configuration panel of the canvas editor.

        Request Interpolation Point Data

        This action is performed to request the server data again. The data sent by an upstream data processing node or layer node is used as a parameter. For example, if the isosurface layer is configured with the API data source as https://api.test and the data passed to the Request Interpolation Point data interface as { id: '1'}, the final request interface is https://api.test?id=1.

        Switch Display /Display

        Toggles whether the widget is displayed or hidden. No parameters are required.

        Display

        Display the widget. For more information, see Data example. 

        {
  "animationType": "",// The animation method. Valid value: fade. If you do not specify this parameter, no animation is generated. 
  "animationDuration": 1000,// The animation delay. Unit: ms. 
  "animationEasing": ""// animation curve
}

        Hide

        Hide the component. For more information, see Data example. 

        {
  "animationType": "",// The animation method. Valid value: fade. If you do not specify this parameter, no animation is generated. 
  "animationDuration": 1000,// The animation delay. Unit: ms. 
  "animationEasing": ""// animation curve
}

        Update component configurations

        Style configurations of widgets are dynamically updated. In the Style panel, click Copy Configuration to Clipboard to obtain the configuration data of the widget. After that, change the style field for the data processing node in Blueprint Editor.