Sha256: 7be1168f5cca8896712b847da2bbb7d86cf41fbe96195918e4fb8ca24b21a5b5
Contents?: true
Size: 1.5 KB
Versions: 13
Compression:
Stored size: 1.5 KB
Contents
// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
#ifndef __ZXING_COMMON_DETECTOR_MATHUTILS_H__
#define __ZXING_COMMON_DETECTOR_MATHUTILS_H__
/*
* Copyright 2012 ZXing authors All rights reserved.
*
* 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.
*/
#include <cmath>
namespace zxing {
namespace common {
namespace detector {
class MathUtils {
private:
MathUtils();
~MathUtils();
public:
/**
* 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.
*/
static inline int round(float d) {
return (int) (d + 0.5f);
}
static inline float distance(float aX, float aY, float bX, float bY) {
float xDiff = aX - bX;
float yDiff = aY - bY;
return sqrt(xDiff * xDiff + yDiff * yDiff);
}
static inline float distance(int aX, int aY, int bX, int bY) {
int xDiff = aX - bX;
int yDiff = aY - bY;
return sqrt(float(xDiff * xDiff + yDiff * yDiff));
}
};
}
}
}
#endif
Version data entries
13 entries across 13 versions & 4 rubygems