/*
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* Copyright 2012 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*namespace com.google.zxing.common.detector {*/
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/**
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* General math-related and numeric utility functions.
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*/
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var MathUtils = /** @class */ (function () {
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function MathUtils() {
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}
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/**
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* Ends up being a bit faster than {@link Math#round(float)}. This merely rounds its
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* argument to the nearest int, where x.5 rounds up to x+1. Semantics of this shortcut
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* differ slightly from {@link Math#round(float)} in that half rounds down for negative
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* values. -2.5 rounds to -3, not -2. For purposes here it makes no difference.
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*
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* @param d real value to round
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* @return nearest {@code int}
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*/
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MathUtils.round = function (d /*float*/) {
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if (isNaN(d))
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return 0;
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if (d <= Number.MIN_SAFE_INTEGER)
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return Number.MIN_SAFE_INTEGER;
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if (d >= Number.MAX_SAFE_INTEGER)
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return Number.MAX_SAFE_INTEGER;
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return /*(int) */ (d + (d < 0.0 ? -0.5 : 0.5)) | 0;
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};
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// TYPESCRIPTPORT: maybe remove round method and call directly Math.round, it looks like it doesn't make sense for js
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/**
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* @param aX point A x coordinate
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* @param aY point A y coordinate
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* @param bX point B x coordinate
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* @param bY point B y coordinate
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* @return Euclidean distance between points A and B
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*/
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MathUtils.distance = function (aX /*float|int*/, aY /*float|int*/, bX /*float|int*/, bY /*float|int*/) {
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var xDiff = aX - bX;
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var yDiff = aY - bY;
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return /*(float) */ Math.sqrt(xDiff * xDiff + yDiff * yDiff);
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};
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/**
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* @param aX point A x coordinate
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* @param aY point A y coordinate
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* @param bX point B x coordinate
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* @param bY point B y coordinate
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* @return Euclidean distance between points A and B
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*/
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// public static distance(aX: number /*int*/, aY: number /*int*/, bX: number /*int*/, bY: number /*int*/): float {
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// const xDiff = aX - bX
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// const yDiff = aY - bY
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// return (float) Math.sqrt(xDiff * xDiff + yDiff * yDiff);
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// }
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/**
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* @param array values to sum
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* @return sum of values in array
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*/
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MathUtils.sum = function (array) {
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var count = 0;
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for (var i = 0, length_1 = array.length; i !== length_1; i++) {
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var a = array[i];
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count += a;
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}
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return count;
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};
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return MathUtils;
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}());
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export default MathUtils;
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