Angular PolarChart API
The PolarChart is a widget that visualizes data in a polar coordinate system.
The PolarChart widget visualizes data in a polar coordinate system. In this system, each point on a plane is determined by the distance from the center (the point's value) and the angle from a fixed direction (the point's argument). To understand how a chart is displayed in a polar coordinate system, imagine how it would be displayed in a rectangular coordinate system and then round off the argument axis in your mind.
See Also
- Set Up DevExtreme: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Properties
An object defining configuration options for the PolarChart widget.
| Name | Description |
|---|---|
| adaptiveLayout | Specifies adaptive layout options. |
| animation | Specifies animation options. |
| argumentAxis | Specifies argument axis options for the PolarChart widget. |
| barGroupPadding | Controls the padding and consequently the angular width of a group of bars with the same argument using relative units. Ignored if the barGroupWidth option is set. |
| barGroupWidth | Specifies a fixed angular width for groups of bars with the same argument, measured in degrees. Takes precedence over the barGroupPadding option. |
| commonAxisSettings | An object defining the configuration options that are common for all axes of the PolarChart widget. |
| commonSeriesSettings | An object defining the configuration options that are common for all series of the PolarChart widget. |
| containerBackgroundColor | Specifies the color of the parent page element. |
| customizeLabel | Customizes the appearance of an individual point label. |
| customizePoint | Customizes the appearance of an individual series point. |
| dataPrepareSettings | An object providing options for managing data from a data source. |
| dataSource | Binds the widget to data. |
| disabled | Specifies whether the widget responds to the user interaction. |
| elementAttr | Specifies the attributes to be attached to the widget's root element. |
| export | Configures the exporting and printing features. |
| legend | Specifies the options of a chart's legend. |
| loadingIndicator | Configures the loading indicator. |
| margin | Generates space around the widget. |
| negativesAsZeroes | Forces the widget to treat negative values as zeroes. Applies to stacked-like series only. |
| onArgumentAxisClick | A function that is executed when a label on the argument axis is clicked or tapped. |
| onDisposing | A function that is executed before the widget is disposed of. |
| onDone | A function that is executed when all series are ready. |
| onDrawn | A function that is executed when the widget's rendering has finished. |
| onExported | A function that is executed after the widget is exported. |
| onExporting | A function that is executed before the widget is exported. |
| onFileSaving | A function that is executed before a file with exported widget is saved to the user's local storage. |
| onIncidentOccurred | A function that is executed when an error or warning occurs. |
| onInitialized | A function used in JavaScript frameworks to save the widget instance. |
| onLegendClick | A function that is executed when a legend item is clicked or tapped. |
| onOptionChanged | A function that is executed after a widget option is changed. |
| onPointClick | A function that is executed when a series point is clicked or tapped. |
| onPointHoverChanged | A function that is executed after the pointer enters or leaves a series point. |
| onPointSelectionChanged | A function that is executed when a series point is selected or selection is canceled. |
| onSeriesClick | A function that is executed when a series is clicked or tapped. |
| onSeriesHoverChanged | A function that is executed after the pointer enters or leaves a series. |
| onSeriesSelectionChanged | A function that is executed when a series is selected or selection is canceled. |
| onTooltipHidden | A function that is executed when a tooltip becomes hidden. |
| onTooltipShown | A function that is executed when a tooltip appears. |
| palette | Sets the palette to be used for colorizing series and their elements. |
| paletteExtensionMode | Specifies what to do with colors in the palette when their number is less than the number of series (in the Chart widget) or points in a series (in the PieChart widget). |
| pathModified | Notifies the widget that it is embedded into an HTML page that uses a tag modifying the path. |
| pointSelectionMode | Specifies whether a single point or multiple points can be selected in the chart. |
| redrawOnResize | Specifies whether to redraw the widget when the size of the parent browser window changes or a mobile device rotates. |
| resolveLabelOverlapping | Specifies how the chart must behave when series point labels overlap. |
| rtlEnabled | Switches the widget to a right-to-left representation. |
| series | Specifies options for PolarChart widget series. |
| seriesSelectionMode | Specifies whether a single series or multiple series can be selected in the chart. |
| seriesTemplate | Defines options for the series template. |
| size | Specifies the widget's size in pixels. |
| theme | Sets the name of the theme the widget uses. |
| title | Configures the widget's title. |
| tooltip | Configures tooltips. |
| useSpiderWeb | Indicates whether or not to display a "spider web". |
| valueAxis | Specifies value axis options for the PolarChart widget. |
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Methods
This section describes methods that control the PolarChart widget.
| Name | Description |
|---|---|
| beginUpdate() | Prevents the widget from refreshing until the endUpdate() method is called. |
| clearSelection() | Deselects the chart's selected series. The series is displayed in an initial style. |
| dispose() | Disposes of all the resources allocated to the PolarChart instance. |
| element() | Gets the root widget element. |
| endUpdate() | Refreshes the widget after a call of the beginUpdate() method. |
| exportTo(fileName, format) | Exports the widget. |
| getAllSeries() | Gets all the series. |
| getDataSource() | Gets the DataSource instance. |
| getInstance(element) | Gets the instance of a widget found using its DOM node. |
| getSeriesByName(seriesName) | Gets a series with a specific name. |
| getSeriesByPos(seriesIndex) | Gets a series with a specific index. |
| getSize() | Gets the current widget size. |
| hideLoadingIndicator() | Hides the loading indicator. |
| hideTooltip() | Hides all widget tooltips. |
| instance() | Gets the widget's instance. Use it to access other methods of the widget. |
| off(eventName) | Detaches all event handlers from a single event. |
| off(eventName, eventHandler) | Detaches a particular event handler from a single event. |
| on(eventName, eventHandler) | Subscribes to an event. |
| on(events) | Subscribes to events. |
| option() | Gets all widget options. |
| option(optionName) | Gets the value of a single option. |
| option(optionName, optionValue) | Updates the value of a single option. |
| option(options) | Updates the values of several options. |
| print() | Opens the browser's print window. |
| refresh() | Reloads data and repaints the widget. |
| render() | Redraws the widget. |
| render(renderOptions) | Redraws the widget. |
| showLoadingIndicator() | Shows the loading indicator. |
| svg() | Gets the widget's SVG markup. |
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Events
This section describes events fired by this widget.
| Name | Description |
|---|---|
| argumentAxisClick | Raised when a label on the argument axis is clicked or tapped. |
| disposing | Raised before the widget is disposed of. |
| done | Raised when all series are ready. |
| drawn | Raised when the widget's rendering has finished. |
| exported | Raised after the widget is exported. |
| exporting | Raised before the widget is exported. |
| fileSaving | Raised before a file with exported widget is saved to the user's local storage. |
| incidentOccurred | Raised when an error or warning occurs. |
| initialized | Raised only once, after the widget is initialized. |
| legendClick | Raised when a legend item is clicked or tapped. |
| optionChanged | Raised after a widget option is changed. |
| pointClick | Raised when a series point is clicked or tapped. |
| pointHoverChanged | Raised after the pointer enters or leaves a series point. |
| pointSelectionChanged | Raised when a series point is selected or selection is canceled. |
| seriesClick | Raised when a series is clicked or tapped. |
| seriesHoverChanged | Raised after the pointer enters or leaves a series. |
| seriesSelectionChanged | Raised when a series is selected or selection is canceled. |
| tooltipHidden | Raised when a tooltip becomes hidden. |
| tooltipShown | Raised when a tooltip appears. |
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Series Types
This section lists objects that define options used to configure series of specific types.
| Name | Description |
|---|---|
| AreaSeries | An object defining a series of the area type. |
| BarSeries | An object defining a series of the bar type. |
| LineSeries | An object defining a series of the line type. |
| ScatterSeries | An object defining a series of the scatter type. |
| StackedBarSeries | An object defining a series of the stackedBar type. |
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