Disclosed is a multiple coordinate controller device having a
three-dimensional body with a first surface portion and a second surface
portion where the second surface portion is not coplanar with the first
surface. A first transducer with a first sensing surface is coupled to
the first surface portion of the body and capable of detecting both
positions and a range of pressure forces at positions on the first
sensing surface. The first transducer is further capable of providing a
first range of z coordinates at a detected x,y coordinate in response to
the range of pressure forces on said first sensing surface. A second
transducer having a second sensing surface is coupled to the second
surface portion of the body and capable of detecting both positions and a
range of pressure forces at the positions on the second sensing surface.
The second transducer is further capable of providing a second range of z
coordinates of opposite polarity to the first range of z coordinates in
response to the range of forces on second sensing surface.