Is there a way to do this in such a way that the rest of the view matrix
changes appropriately, including clipping planes, etc.? There is a handy
pair of functions in Coot that do this:
set_rotation_centre(x, y, z)
set_zoom(30)
which has the advantage of adjusting the perspective and focusing on exactly
the residue/molecule of interest. I tried to emulate the first part in
PyMOL:
def recenter_and_zoom (self, x, y, z) :
view = list(cmd.get_view())
view[12] = x
view[13] = y
view[14] = z
cmd.set_view(view)
which sets the center of rotation, but the perspective is screwy because the
rest of the view matrix is unchanged. I can figure out the equivalent
'zoom' command for the residue of interest if I really need to, but I
already have the coordinates computed, so I'd rather try to figure out how
to adjust the zoom level through the matrix instead. (Sorry if this is a
little incoherent - I still don't understand matrix arithmetic in OpenGL.)
thanks,
Nat
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