~/slambook/3rdparty/g2o/bin$ g2o_viewer /home/openslam_vertigo-master/datasets/city10000/originalDataset/city10000.g2o
~/slambook/3rdparty/g2o/bin$ g2o_viewer /home/openslam_vertigo-master/datasets/intel/originalDataset
~/slambook/3rdparty/g2o/bin$ g2o_viewer /home/openslam_vertigo-master/datasets/city10000/originalDataset/city10000.g2o
~/slambook/3rdparty/g2o/bin$ g2o_viewer /home/openslam_vertigo-master/datasets/intel/originalDataset