(transform objetoID centerID frameID [rotate|translate|translate-scaled|scale] x y z [bbox-center|origin] [dt [smooth]])
objetoID
; that is, construct and concatenate a transformation
matrix with objetoID's transform The 3 IDs involved are the object that
moves, the center of motion, and the frame of reference in which to
apply the motion. The center is easiest understood for rotations: if
centerID is the same as objetoID then it will spin around its own axes;
otherwise the moving object will orbit the center object. There is the
special keyword bbox-center
which may be used for
centerID
. As a result the motion will be relative to the center
of the bounding box of objetoID
. Normally frameID, in whose
coordinate system the (mouse) motions are interpreted, is focus
,
the current camera. Translations can be scaled proportional to the
distance between the target and the center. Support for spherical and
hyperbolic as well as Euclidean space is built-in: use the space
command to change spaces. With type rotate
x, y, and z are
floats specifying angles in RADIANS. For types translate
and
translate-scaled
x, y, and z are floats specifying distances in
the coordinate system of the center object.
The optional dt
field allows a simple form of
animation; if present, the objeto moves by just that amount during
approximately dt
seconds, then stops. If present and followed by
the smooth
keyword, the movimento is animated with a 3t^2-2t^3
function, so as to start and stop smoothly. If absent, the movimento is
applied immediately.