Angular PolarChart API
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
Configuration
| 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 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. |
| onZoomEnd |
A function that is executed when zooming or panning ends. |
| onZoomStart |
A function that is executed when zooming or panning begins. |
| 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
| 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. |
| getValueAxis() |
Gets a value axis. |
| 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. |
| resetOption(optionName) |
Resets an option to its default value. |
| resetVisualRange() |
Resets the value axis' visual range to the data range or to the whole range if it is within the data range. |
| 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
| 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. |
| zoomEnd |
Raised when zooming or panning ends. |
| zoomStart |
Raised when zooming or panning begins. |
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Series 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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