/*
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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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#import "ZXMathUtils.h"
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@implementation ZXMathUtils
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+ (int)round:(float)d {
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return (int) (d + (d < 0.0f ? -0.5f : 0.5f));
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}
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+ (float)distance:(float)aX aY:(float)aY bX:(float)bX bY:(float)bY {
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float xDiff = aX - bX;
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float yDiff = aY - bY;
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return sqrtf(xDiff * xDiff + yDiff * yDiff);
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}
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+ (float)distanceInt:(int)aX aY:(int)aY bX:(int)bX bY:(int)bY {
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int xDiff = aX - bX;
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int yDiff = aY - bY;
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return sqrtf(xDiff * xDiff + yDiff * yDiff);
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}
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@end
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