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Polar Cardioid
xxxxxxxxxx
const colors = [ "#428517", "#77D200", "#D6D305", "#EC8E19", "#C92B05"];
class App extends React.Component {
render() {
return (
<VictoryChart polar
theme={VictoryTheme.material}
domain={{ y: [0, 10] }}
>
<VictoryPolarAxis dependentAxis
style={{ axis: { stroke: "none" } }}
tickFormat={() => ""}
/>
<VictoryPolarAxis
tickValues={[0, Math.PI / 2, Math.PI, (3 * Math.PI) / 2]}
tickFormat={["2π", "π/2", "π", "3π/2"]}
labelPlacement="vertical"
/>
{ [5, 4, 3, 2, 1].map((val, i) => {
return (
<VictoryLine
key={i}
samples={100}
style={{ data: { stroke: colors[i] } }}
y={(d) => val * (1 - Math.cos(d.x))}
/>
);
})}
</VictoryChart>
);
}
}
ReactDOM.render(<App/>, mountNode);