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BarChart: fix single group rendering (#45953)

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Leon Sorokin 2022-02-28 15:21:09 -06:00 committed by GitHub
parent 5aab0063c7
commit 1c4b20b268
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1 changed files with 10 additions and 6 deletions
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16
public/app/plugins/panel/barchart/bars.ts
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@ -189,7 +189,7 @@ export function getConfig(opts: BarsOptions, theme: GrafanaTheme2) {
// this expands the distr: 2 scale so that the indicies of each data[0] land at the proper justified positions
const xRange: Scale.Range = (u, min, max) => {
min = 0;
max = u.data[0].length - 1;
max = Math.max(1, u.data[0].length - 1);
let pctOffset = 0;
@ -199,13 +199,17 @@ export function getConfig(opts: BarsOptions, theme: GrafanaTheme2) {
});
// expand scale range by equal amounts on both ends
let rn = max - min; // TODO: clamp to 1?
let rn = max - min;
let upScale = 1 / (1 - pctOffset * 2);
let offset = (upScale * rn - rn) / 2;
if (pctOffset === 0.5) {
min -= rn;
} else {
let upScale = 1 / (1 - pctOffset * 2);
let offset = (upScale * rn - rn) / 2;
min -= offset;
max += offset;
min -= offset;
max += offset;
}
return [min, max];
};