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fix intervals (#352)

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David Schnurr 2021-10-04 07:10:13 -07:00 committed by GitHub
parent 5a4857d6a8
commit 10de973608
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1 changed files with 9 additions and 1 deletions
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src/js/utils/intervals.js
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@ -69,7 +69,15 @@ function getChartIntervals(maxValue, minValue=0) {
normalMaxValue = normalMaxValue.toFixed(6); normalMaxValue = normalMaxValue.toFixed(6);
let intervals = getChartRangeIntervals(normalMaxValue, normalMinValue); let intervals = getChartRangeIntervals(normalMaxValue, normalMinValue);
intervals = intervals.map(value => value * Math.pow(10, exponent)); intervals = intervals.map(value => {
// For negative exponents we want to divide by 10^-exponent to avoid
// floating point arithmetic bugs. For instance, in javascript
// 6 * 10^-1 == 0.6000000000000001, we instead want 6 / 10^1 == 0.6
if (exponent < 0) {
return value / Math.pow(10, -exponent);
}
return value * Math.pow(10, exponent);
});
return intervals; return intervals;
} }