-8-
²Cutout type Expr > 0 defines the region to be removed by a general mathematical expression, rather than a single
parameter
åThe expression uses the same syntax as 3dcalc
åVariables that can be used are ÔxÕ, ÔyÕ, and ÔzÕ,
corresponding to spatial coordinates in
the dataset
ØWhen using Automate (infra), variable ÔtÕ can also be used
ØThe (x, y, z) locations where the expression evaluates
to a positive number will be cut
out
åExample: rendering a slab tilted at an arbitrary angle
between coronal (xz-plane) and axial
(xy-plane):
width w
(y,z)=s*(sin(a),cos(a)) Slab is parallel to this line s = distance along line
(y,z)=s*(cos(a),-sin(a)) Slab is
perpendicular to this line
z
a
y
