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Handle tiny values in a log chart (#25727)

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Petar Petrov 2025-06-09 14:45:23 +03:00 committed by GitHub
parent 5ce5f9a189
commit 2589e1a49f
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GPG Key ID: B5690EEEBB952194
2 changed files with 20 additions and 8 deletions
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14
src/components/chart/state-history-chart-line.ts
View File

@ -229,14 +229,20 @@ export class StateHistoryChartLine extends LitElement {
minYAxis = ({ min }) => Math.min(min, this.minYAxis!);
}
} else if (this.logarithmicScale) {
minYAxis = ({ min }) => Math.floor(min > 0 ? min * 0.95 : min * 1.05);
minYAxis = ({ min }) => {
const value = min > 0 ? min * 0.95 : min * 1.05;
return Math.abs(value) < 1 ? value : Math.floor(value);
};
}
if (typeof maxYAxis === "number") {
if (this.fitYData) {
maxYAxis = ({ max }) => Math.max(max, this.maxYAxis!);
}
} else if (this.logarithmicScale) {
maxYAxis = ({ max }) => Math.ceil(max > 0 ? max * 1.05 : max * 0.95);
maxYAxis = ({ max }) => {
const value = max > 0 ? max * 1.05 : max * 0.95;
return Math.abs(value) < 1 ? value : Math.ceil(value);
};
}
this._chartOptions = {
xAxis: {
@ -753,10 +759,10 @@ export class StateHistoryChartLine extends LitElement {
if (this.logarithmicScale) {
// log(0) is -Infinity, so we need to set a minimum value
if (typeof value === "number") {
return Math.max(value, 0.1);
return Math.max(value, Number.EPSILON);
}
if (typeof value === "function") {
return (values: any) => Math.max(value(values), 0.1);
return (values: any) => Math.max(value(values), Number.EPSILON);
}
}
return value;

14
src/components/chart/statistics-chart.ts
View File

@ -241,14 +241,20 @@ export class StatisticsChart extends LitElement {
minYAxis = ({ min }) => Math.min(min, this.minYAxis!);
}
} else if (this.logarithmicScale) {
minYAxis = ({ min }) => Math.floor(min > 0 ? min * 0.95 : min * 1.05);
minYAxis = ({ min }) => {
const value = min > 0 ? min * 0.95 : min * 1.05;
return Math.abs(value) < 1 ? value : Math.floor(value);
};
}
if (typeof maxYAxis === "number") {
if (this.fitYData) {
maxYAxis = ({ max }) => Math.max(max, this.maxYAxis!);
}
} else if (this.logarithmicScale) {
maxYAxis = ({ max }) => Math.ceil(max > 0 ? max * 1.05 : max * 0.95);
maxYAxis = ({ max }) => {
const value = max > 0 ? max * 1.05 : max * 0.95;
return Math.abs(value) < 1 ? value : Math.ceil(value);
};
}
const endTime = this.endTime ?? new Date();
let startTime = this.startTime;
@ -619,10 +625,10 @@ export class StatisticsChart extends LitElement {
if (this.logarithmicScale) {
// log(0) is -Infinity, so we need to set a minimum value
if (typeof value === "number") {
return Math.max(value, 0.1);
return Math.max(value, Number.EPSILON);
}
if (typeof value === "function") {
return (values: any) => Math.max(value(values), 0.1);
return (values: any) => Math.max(value(values), Number.EPSILON);
}
}
return value;