def zoom_scene():
global mayavi_zoom, mayavi_zoom_old
if use_mayavi:
mlab.view(distance=mayavi_zoom)
elif use_opengl:
if mayavi_zoom_old < mayavi_zoom:
vis.camera.move_backward()
mayavi_zoom_old = mayavi_zoom
elif mayavi_zoom_old > mayavi_zoom:
vis.camera.move_forward()
help(vis.camera.move_forward)
mayavi_zoom_old = mayavi_zoom
def rotate_scene():
global mayavi_rotation_angle
if use_mayavi and mayavi_rotation_angle:
# mlab.yaw(mayavi_rotation_angle)
if mayavi_autozoom:
mlab.view(azimuth=mayavi_rotation_angle, distance='auto')
else:
current_view_vals = mlab.view()
mlab.view(azimuth=mayavi_rotation_angle,
elevation=current_view_vals[1],
distance=current_view_vals[2],
focalpoint=current_view_vals[3])
mayavi_rotation_angle %= 360.
def zoom_scene():
global mayavi_zoom
mlab.view(distance=mayavi_zoom)
