A possible implementation would be to draw a curve, and upon holding, the drawn curve snaps to become a spline object. Then, dragging points are automatically added at all max, min, and inflection points. You could also possibly tap on the curve to add a draggable spline point.
A possible implementation would be to draw a curve, and upon holding, the drawn curve snaps to become a spline object. Then, dragging points are automatically added at all max, min, and inflection points. You could also possibly tap on the curve to add a draggable spline point.