I have a fuselage side curving notably top to bottom, as they do !..and maybe a tad fore/aft.
I have to plot a 120mm dia panel on this, I have circle in ortho view as it would be on a plan (plans drawn as if aircraft 2D on datum, )
Using project is wrong as it becomes an elipse top to bott.
I then thought of projecting the centre cross to surface then creating a sphere dia 120mm on that cross and using intersect.
Is there an even better way of getting a 120mm dia panel on this surface ?
Lets assume the panel is allowed to curve, as would be normally.