in IsometricPatternMatcher/HexGridFitting.cpp [457:470]
void HexGridFitting::getStorageMap() {
Eigen::Matrix3Xi cubeCoor;
cubeCoor.resize(3, transferDots_.cols());
cubeCoor.fill(std::numeric_limits<int>::max()); // not detected =max int
// get cube coordinate
int minX = 0;
int maxX = 0;
int minZ = 0;
int maxZ = 0;
getCubeCoordinate(transferDots_, minX, maxX, minZ, maxZ, cubeCoor,
bfsProcessSeq_);
binaryCode_ = Eigen::VectorXi::Constant(transferDots_.cols(), 1, 2);
buildBinaryCode(cubeCoor, minX, maxX, minZ, maxZ);
}