QRAlignmentPattern.cpp Example File
appdemos/qtws/QZXing/zxing/zxing/qrcode/detector/QRAlignmentPattern.cpp
#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;
}