Hi Subhiksha,
When you rotate a 3D graph using the "Rotate 3D" option from the toolbar in the MATLAB figure window, the "Azimuth" and "Elevation" angles are displayed in the bottom left corner of the figure window. You can use these values in the "view" function to set your figure to display the rotated position automatically upon code execution.
view(az, el) % replace az and el with the values
But as soon as you release the mouse button, the information iwill no longer be displayed. To display the values as text on the figure itself, you can refer below MATLAB Answer:
For more information on "Azimuth" and "Elevation", you can refer below documentation:
Hope it helps!