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