The IDLanROIGroup::Rotate procedure method modifies the vertices for all regions within the group by applying a rotation.
Obj->[IDLanROIGroup::]Rotate, Axis, Angle[, CENTER=[ x, y[, z ]] ]
A three-element vector of the form [x, y, z] describing the axis about which the region group is to be rotated.
The angle, measured in degrees, by which to rotate the ROI group.
Set this keyword to a two or three-element vector of the form [x, y], or [x, y, z] specifying the center of rotation. The default is [0, 0, 0]. IDL converts and applies this data in double-precision floating-point.