cannot find trajectory file at .examplestrajectory.txt

slam十四讲 3.7显示运动轨迹的程序 trajectory.txt文件路径修改

string trajectory_file = "./examples/trajectory.txt";

改为

string trajectory_file = "/home/dal/slambook2/ch3/examples/trajectory.txt";

即使用自己电脑上trajectory.txt的文件路径