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feat: resize multiple elements including two-point lines (#1607)

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Daishi Kato 2020-05-18 17:36:30 +09:00 • committed by GitHub
parent 6b628bb1a6
commit 4d2e8f9ad1
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3 changed files with 21 additions and 12 deletions
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27
src/points.ts
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@ -18,21 +18,28 @@ export function rescalePoints(
const prevMinDimension = Math.min(...prevDimValues);
const prevDimensionSize = prevMaxDimension - prevMinDimension;
const dimensionScaleFactor = nextDimensionSize / prevDimensionSize;
const dimensionScaleFactor =
prevDimensionSize === 0 ? 1 : nextDimensionSize / prevDimensionSize;
let nextMinDimension = Infinity;
const scaledPoints = prevPoints.map((prevPoint) =>
prevPoint.map((value, currentDimension) => {
if (currentDimension !== dimension) {
return value;
}
const scaledValue = value * dimensionScaleFactor;
nextMinDimension = Math.min(scaledValue, nextMinDimension);
return scaledValue;
}),
const scaledPoints = prevPoints.map(
(prevPoint) =>
prevPoint.map((value, currentDimension) => {
if (currentDimension !== dimension) {
return value;
}
const scaledValue = value * dimensionScaleFactor;
nextMinDimension = Math.min(scaledValue, nextMinDimension);
return scaledValue;
}) as [number, number],
);
if (scaledPoints.length === 2) {
// we don't tranlate two-point lines
return scaledPoints;
}
const translation = prevMinDimension - nextMinDimension;
const nextPoints = scaledPoints.map(