Draw 3d trajectory of my flight without using GPS

hi. How can i draw the trajectory of my flight in 3d space without using GPS and may be using the Dataflash logs with imu and yaw pitch roll values. something like https://www.youtube.com/watch?v=p6JYP5WzFY4

yes, it is possible. convert the Dataflash logs into matlab and do a matlab sript to load the files and plot them.

thanku. but i was really looking for some more specific instructions. If there is some library or something that i can use, give it my data of imu sensors and that library may be plot the trajectory for me?

A simple google search for “mission planner dataflash log matlab” gave: