2 * Copyright 2012 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing.common.detector;
19 public final class MathUtils {
25 * Ends up being a bit faster than {@link Math#round(float)}. This merely rounds its
26 * argument to the nearest int, where x.5 rounds up to x+1.
28 public static int round(float d) {
29 return (int) (d + 0.5f);
32 public static float distance(float aX, float aY, float bX, float bY) {
33 float xDiff = aX - bX;
34 float yDiff = aY - bY;
35 return (float) Math.sqrt(xDiff * xDiff + yDiff * yDiff);
38 public static float distance(int aX, int aY, int bX, int bY) {
41 return (float) Math.sqrt(xDiff * xDiff + yDiff * yDiff);