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@tamagui/react-native-web-lite

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var NEWTON_ITERATIONS = 4, NEWTON_MIN_SLOPE = 1e-3, SUBDIVISION_PRECISION = 1e-7, SUBDIVISION_MAX_ITERATIONS = 10, kSplineTableSize = 11, kSampleStepSize = 1 / (kSplineTableSize - 1), float32ArraySupported = typeof Float32Array == "function"; function A(aA1, aA2) { return 1 - 3 * aA2 + 3 * aA1; } function B(aA1, aA2) { return 3 * aA2 - 6 * aA1; } function C(aA1) { return 3 * aA1; } function calcBezier(aT, aA1, aA2) { return ((A(aA1, aA2) * aT + B(aA1, aA2)) * aT + C(aA1)) * aT; } function getSlope(aT, aA1, aA2) { return 3 * A(aA1, aA2) * aT * aT + 2 * B(aA1, aA2) * aT + C(aA1); } function binarySubdivide(aX, _aA, _aB, mX1, mX2) { var currentX, currentT, i = 0, aA = _aA, aB = _aB; do currentT = aA + (aB - aA) / 2, currentX = calcBezier(currentT, mX1, mX2) - aX, currentX > 0 ? aB = currentT : aA = currentT; while (Math.abs(currentX) > SUBDIVISION_PRECISION && ++i < SUBDIVISION_MAX_ITERATIONS); return currentT; } function newtonRaphsonIterate(aX, _aGuessT, mX1, mX2) { for (var aGuessT = _aGuessT, i = 0; i < NEWTON_ITERATIONS; ++i) { var currentSlope = getSlope(aGuessT, mX1, mX2); if (currentSlope === 0) return aGuessT; var currentX = calcBezier(aGuessT, mX1, mX2) - aX; aGuessT -= currentX / currentSlope; } return aGuessT; } function bezier(mX1, mY1, mX2, mY2) { if (!(mX1 >= 0 && mX1 <= 1 && mX2 >= 0 && mX2 <= 1)) throw new Error("bezier x values must be in [0, 1] range"); var sampleValues = float32ArraySupported ? new Float32Array(kSplineTableSize) : new Array(kSplineTableSize); if (mX1 !== mY1 || mX2 !== mY2) for (var i = 0; i < kSplineTableSize; ++i) sampleValues[i] = calcBezier(i * kSampleStepSize, mX1, mX2); function getTForX(aX) { for (var intervalStart = 0, currentSample = 1, lastSample = kSplineTableSize - 1; currentSample !== lastSample && sampleValues[currentSample] <= aX; ++currentSample) intervalStart += kSampleStepSize; --currentSample; var dist = (aX - sampleValues[currentSample]) / (sampleValues[currentSample + 1] - sampleValues[currentSample]), guessForT = intervalStart + dist * kSampleStepSize, initialSlope = getSlope(guessForT, mX1, mX2); return initialSlope >= NEWTON_MIN_SLOPE ? newtonRaphsonIterate(aX, guessForT, mX1, mX2) : initialSlope === 0 ? guessForT : binarySubdivide(aX, intervalStart, intervalStart + kSampleStepSize, mX1, mX2); } return function (x) { return mX1 === mY1 && mX2 === mY2 ? x : x === 0 ? 0 : x === 1 ? 1 : calcBezier(getTForX(x), mY1, mY2); }; } export { bezier as default }; //# sourceMappingURL=bezier.native.js.map