getFirstCorner   1425 modules/calib3d/src/circlesgrid.cpp   size_t cornerIdx = getFirstCorner(largeCornerIndices, smallCornerIndices, firstSteps, secondSteps);
getFirstCorner    202 modules/calib3d/src/circlesgrid.hpp   size_t getFirstCorner(std::vector<cv::Point> &largeCornerIndices, std::vector<cv::Point> &smallCornerIndices,