Positioning sensors correctly relative to the render model allows
you to adjust the mapping of the signal on the surface. There are four
types of adjustments: an "y-offset" which acts in along the
anterior-posterior dimension, a "z-offset" which operates along the
"inferior-superior" dimension, an "x-rotation" along the left-right
dimension and a "theta-scaling" which is similar to the z-offset but
keeps theta angle proportions constant. These transformation are
configured on the "positioning" page
in the VIEWAVERAGE section of
the configure-study dialog.
Similar controls are available in the
The effects of the transformations are illustrated below:
Y-Offset and Z-Offset transformations are spherical projections on a
translated model as shown in the following graph, sensor distances are
not proportionally transformed.