The tomo_result file is as below :
st1 st2
lat1 long1 lat2 long2 period velocity(km/s)
17.0241 78.1812 17.4309 78.6871 5.0 3.82092
7.0241 78.1812 17.7608 78.1708 5.0 3.335
17.0241 78.1812 17.1903 78.6139 5.0 3.72839
The example of file need to be like : https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.researchgate.net%2Ffigure%2FRayleigh-wave-phase-velocity-maps-at-periods-of-10-70-s-for-the-study-area_fig3_324124764&psig=AOvVaw2W3xXYPK0N0VZHeqCkKtgF&ust=1633156308984000&source=images&cd=vfe&ved=0CAkQjRxqFwoTCKCcg8DLqPMCFQAAAAAdAAAAABAX