Primitive SelectionSince the task o

Primitive Selection
Since the task of selecting a primitive to extrude has a
lower significance, the ring finger was used to house
the menu-driven pattern for this task. It consists of 4
capacitive electrodes, which detects the touch state and
associates each electrode to a primitive shape. The
user via their thumb can reach out to these electrodes
and select the appropriate primitive (Figure 6b). A
smooth interaction is achieved, since the area of
contact for the thumb is comparatively greater on the
finger, making it extremely easy for the user to
understand and use.