def initialize_modelview(self, eye_vector=None, angle=None):
super(RLVWindow, self).initialize_modelview(eye_vector=eye_vector,
angle=angle)
self.rotation_center = (0, 0, 0)
self.move_to_center_of_viewport(self.rotation_center)
if self.settings.model_view_matrix is not None:
gl.glLoadMatrixd(self.settings.model_view_matrix)
def snap_back_rotation(self):
rc = self.rotation_center
rotation_to_undo = matrix.sqr(
gltbx.util.extract_rotation_from_gl_modelview_matrix())
if self.marked_rotation is not None:
rotation_to_undo *= self.marked_rotation.inverse()
aa = scitbx.math.r3_rotation_axis_and_angle_from_matrix(
r=rotation_to_undo.as_mat3())
u, v, w = aa.axis
angle = -aa.angle(deg=True)
mvm = gltbx.util.get_gl_modelview_matrix()
for f in animation_stepper(
time_move=self.animation_time,
move_factor=self.rotation_move_factor(angle)):
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glLoadMatrixd(mvm)
gltbx.util.rotate_object_about_eye_vector(
xcenter=rc[0],
ycenter=rc[1],
zcenter=rc[2],
xvector=u,
yvector=v,
zvector=w,
angle=f * angle,
)
self.OnRedraw()