Function multiplyInternal

Multiplies positioned rect by width/height. Useful for denormalising a value. x/y value of second parameter are ignored.

// Normalised rectangle
const r = { x:0.5, y:0.5, width: 0.5, height: 0.5};

// Map to window:
const rr = Rects.multiply(r, window.innerWidth, window.innerHeight);
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Multiplication applies to the first parameter's x/y fields.

Multiplies rect by width/height. Useful for denormalising a value.

// Normalised rectangle of width 50%, height 50%
const r = { width: 0.5, height: 0.5 };

// Map to window:
const rr = Rects.multiply(r, window.innerWidth, window.innerHeight);
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Multiplication applies to the first parameter's x/y fields, if present.

Multiplies positioned rect a by width and height of rect b.

// Returns {width: someRect.width * someOtherRect.width ...}
Rects.multiply(someRect, someOtherRect);
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Multiplies rect a by width and height of rect b.

// Returns {width: someRect.width * someOtherRect.width ...}
Rects.multiply(someRect, someOtherRect);
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