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Contents
// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
/*
* AlignmentPattern.cpp
* zxing
*
* Created by Christian Brunschen on 13/05/2008.
* Copyright 2008 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 <zxing/qrcode/detector/AlignmentPattern.h>
using std::abs;
using zxing::Ref;
using zxing::qrcode::AlignmentPattern;
AlignmentPattern::AlignmentPattern(float posX, float posY, float estimatedModuleSize) :
ResultPoint(posX,posY), estimatedModuleSize_(estimatedModuleSize) {
}
bool AlignmentPattern::aboutEquals(float moduleSize, float i, float j) const {
if (abs(i - getY()) <= moduleSize && abs(j - getX()) <= moduleSize) {
float moduleSizeDiff = abs(moduleSize - estimatedModuleSize_);
return moduleSizeDiff <= 1.0f || moduleSizeDiff <= estimatedModuleSize_;
}
return false;
}
Ref<AlignmentPattern> AlignmentPattern::combineEstimate(float i, float j, float newModuleSize) const {
float combinedX = (getX() + j) / 2.0f;
float combinedY = (getY() + i) / 2.0f;
float combinedModuleSize = (estimatedModuleSize_ + newModuleSize) / 2.0f;
Ref<AlignmentPattern> result
(new AlignmentPattern(combinedX, combinedY, combinedModuleSize));
return result;
}
Version data entries
13 entries across 13 versions & 4 rubygems