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Update Storybook story for Pie Chart with Needle example to accommodate resizable charts #4002

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merged 1 commit into from
Nov 30, 2023
Merged

Update Storybook story for Pie Chart with Needle example to accommodate resizable charts #4002

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63 changes: 42 additions & 21 deletions storybook/stories/Examples/Pie/PieWithNeedle.stories.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -16,28 +16,36 @@ const cx = 150;
const cy = 200;
const iR = 50;
const oR = 100;
const value = 50;

const needle = (value: number, data: any[], cx: number, cy: number, iR: number, oR: number, color: string) => {
let total = 0;
data.forEach(v => {
total += v.value;
});
const ang = 180.0 * (1 - value / total);
const length = (iR + 2 * oR) / 3;
const sin = Math.sin(-RADIAN * ang);
const cos = Math.cos(-RADIAN * ang);
const r = 5;
const x0 = cx + 5;
const y0 = cy + 5;
const xbb = x0 - r * sin;
const ybb = y0 + r * cos;
const xp = x0 + length * cos;
const NEEDLE_BASE_RADIUS_PX = 5;
const NEEDLE_LENGTH_PX = 35;
const NEEDLE_COLOR = '#d0d000';
const Needle = ({ cx, cy, midAngle }: { cx: number; cy: number; midAngle: number }) => {
const sin = Math.sin(-RADIAN * midAngle);
const cos = Math.cos(-RADIAN * midAngle);
const needleBaseCenterX = cx;
const needleBaseCenterY = cy;
const xbb = needleBaseCenterX - NEEDLE_BASE_RADIUS_PX * sin;
const ybb = needleBaseCenterY + NEEDLE_BASE_RADIUS_PX * cos;
const xp = needleBaseCenterX + NEEDLE_LENGTH_PX * cos;

return [
<circle cx={x0} cy={y0} r={r} fill={color} stroke="none" />,
<path d={`M${x0},${y0}L${xbb + 65},${ybb - 65},L${xp}`} strokeWidth={2} stroke={color} fill={color} />,
];
return (
<g>
<circle
cx={needleBaseCenterX}
cy={needleBaseCenterY}
r={NEEDLE_BASE_RADIUS_PX}
fill={NEEDLE_COLOR}
stroke="none"
/>
<path
d={`M${needleBaseCenterX},${needleBaseCenterY}L${xbb + 65},${ybb - 65},L${xp}`}
strokeWidth={2}
stroke={NEEDLE_COLOR}
fill={NEEDLE_COLOR}
/>
</g>
);
};

export const PieWithNeedle = {
Expand All @@ -61,7 +69,20 @@ export const PieWithNeedle = {
<Cell key={`cell-${entry.name}`} fill={entry.color} />
))}
</Pie>
{needle(value, data, cx, cy, iR, oR, '#d0d000')}
<Pie
dataKey="value"
startAngle={180}
endAngle={0}
data={data}
cx={cx}
cy={cy}
innerRadius={iR}
outerRadius={oR}
stroke="none"
fill="none"
activeIndex={1}
activeShape={Needle}
/>
</PieChart>
</ResponsiveContainer>
);
Expand Down