Polar Area Chart
Polar area charts compare values using segments that radiate from a center point with varying radius. Unlike pie charts, each segment has an equal angle while the radius varies, making them useful for comparing magnitudes without visual bias.
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See <wa-chart> for advanced configuration, custom plugins, and direct Chart.js access.
Examples
Providing Data with JSON
Place a <script type="application/json"> tag inside the component with your chart data. Each value in the data array corresponds to a label, and the segment radius reflects its magnitude. The JSON follows the Chart.js configuration format.
Providing Data with JavaScript
Set the config property from JavaScript when your data comes from code rather than static markup. The chart re-renders automatically each time you assign it. For data that updates at runtime, try the live controls in Accessing the Chart.js Instance.
config is shallowly reactive.
If you mutate the object in place, reassign it to trigger a re-render.
Colors
Override the default color palette using the --fill-color-* and --border-color-* CSS custom properties.
Legend
Use the legend-position attribute to control where the legend appears. Add without-legend to hide it entirely.
Disabling Features
Use without-tooltip to hide hover tooltips and without-animation to disable transitions.
API
Importing
If you're using the autoloader or a hosted project, components load on demand — no manual import needed. To cherry-pick a component manually, use one of the following snippets.
Import this component directly from the CDN:
import 'https://ka-f.webawesome.com/[email protected]/components/polar-area-chart/polar-area-chart.js';
After installing Web Awesome via npm, import this component:
import '@awesome.me/webawesome/dist/components/polar-area-chart/polar-area-chart.js';
If you're self-hosting Web Awesome, import this component from your server:
import './webawesome/dist/components/polar-area-chart/polar-area-chart.js';
To import this component for React 18 or below, use the following code:
import WaPolarAreaChart from '@awesome.me/webawesome/dist/react/polar-area-chart/index.js';
Slots
Learn more about using slots.
| Name | Description |
|---|---|
| (default) | An optional <script type="application/json"> element containing the Chart.js configuration object. |
Attributes & Properties
Learn more about attributes and properties.
| Name | Description | Reflects |
|---|---|---|
config |
The Chart.js configuration object. Setting this property will automatically re-render the chart.
Type
ChartJS['config']
|
|
descriptiondescription |
A description of the chart, used for accessibility.
Type
string | null
Default
null
|
|
gridgrid |
Which axes to show grid lines on.
Type
'x' | 'y' | 'both' | 'none'
Default
'both'
|
|
indexAxisindex-axis |
The base axis of the dataset. 'x' for vertical bars and 'y' for horizontal bars.
Type
'x' | 'y'
Default
'x'
|
|
labellabel |
A label for the chart, used for accessibility.
Type
string | null
Default
null
|
|
legendPositionlegend-position |
The position of the legend relative to the chart.
Type
LayoutPosition | 'start' | 'end'
Default
'top'
|
|
maxmax |
The maximum value for the value axis.
Type
number | null
Default
null
|
|
minmin |
The minimum value for the value axis.
Type
number | null
Default
null
|
|
pluginsplugins |
Additional Chart.js plugins to register for this chart instance.
Type
array
Default
[]
|
|
stackedstacked |
Stacks datasets on top of each other along the value axis.
Type
boolean
Default
false
|
|
typetype |
The type of chart to render. Valid types include
bar, line, pie, doughnut, polarArea, radar, scatter,
and bubble.
Type
ChartType
Default
'polarArea'
|
|
withoutAnimationwithout-animation |
Disables chart animations
Type
boolean
Default
false
|
|
withoutLegendwithout-legend |
Hides the legend
Type
boolean
Default
false
|
|
withoutTooltipwithout-tooltip |
Hides tooltips over data points
Type
boolean
Default
false
|
|
xLabelx-label |
A label for the x-axis.
Type
string | null
Default
null
|
|
yLabely-label |
A label for the y-axis.
Type
string | null
Default
null
|
CSS Custom Properties
Learn more about CSS custom properties.
| Name | Description |
|---|---|
--border-color-1 |
Border color for the first dataset.
Default
var(--wa-color-blue-60)
|
--border-color-2 |
Border color for the second dataset.
Default
var(--wa-color-pink-60)
|
--border-color-3 |
Border color for the third dataset.
Default
var(--wa-color-green-60)
|
--border-color-4 |
Border color for the fourth dataset.
Default
var(--wa-color-yellow-60)
|
--border-color-5 |
Border color for the fifth dataset.
Default
var(--wa-color-purple-60)
|
--border-color-6 |
Border color for the sixth dataset.
Default
var(--wa-color-orange-60)
|
--border-radius |
Border radius for bar charts.
Default
var(--wa-border-radius-s)
|
--border-width |
Border width for bars and arcs.
Default
var(--wa-border-width-s)
|
--fill-color-1 |
Fill color for the first dataset.
Default
color-mix(in srgb, var(--wa-color-blue-60) 40%, transparent)
|
--fill-color-2 |
Fill color for the second dataset.
Default
color-mix(in srgb, var(--wa-color-pink-60) 40%, transparent)
|
--fill-color-3 |
Fill color for the third dataset.
Default
color-mix(in srgb, var(--wa-color-green-60) 40%, transparent)
|
--fill-color-4 |
Fill color for the fourth dataset.
Default
color-mix(in srgb, var(--wa-color-yellow-60) 40%, transparent)
|
--fill-color-5 |
Fill color for the fifth dataset.
Default
color-mix(in srgb, var(--wa-color-purple-60) 40%, transparent)
|
--fill-color-6 |
Fill color for the sixth dataset.
Default
color-mix(in srgb, var(--wa-color-orange-60) 40%, transparent)
|
--grid-border-width |
Border width for chart grid lines and axis borders.
Default
var(--wa-border-width-s)
|
--grid-color |
Color of the chart grid lines and axis borders.
Default
var(--wa-color-neutral-border-quiet)
|
--line-border-width |
Border width for line and radar charts.
Default
var(--wa-border-width-m)
|
--point-radius |
Radius of data point dots.
Default
var(--wa-border-width-m)
|