def set_active_axes_to_view(manip=0, axis_mode=0):
manip = {
0: MoveManip,
1: RotateManip,
2: ScaleManip,
}[manip]()
offset = get_vector_offset(manip)
camera = Camera(mvp.Viewport.active().camera)
main_vector = camera.get_view_direction()
vector_map = get_axis_vector_map(main_vector, offset, mode=axis_mode)
closest_match = max(vector_map, key=vector_map.get)
manip.set_active_handle(closest_match)
def walk_fit_camera_history(prev=False):
"""
Walk saved camera positions.
"""
if prev:
fit_view_history.jump_back()
else:
fit_view_history.jump_forward()
# Restore attributes
current = fit_view_history.current_element
camera = Camera(current.name)
camera.transform.attr['translate'] = current.translate
camera.transform.attr['rotate'] = current.rotate
camera.attr['centerOfInterest'] = current.centerOfInterest
def viewport_snap():
"""
Smooth camera transition between perspective and orthographic.
"""
view = mvp.Viewport.active()
camera = Camera(view.camera)
view_vector = camera.get_view_direction()
axis = get_active_axis_from_view_vector(view_vector)
negative = True
if len(axis) > 1:
negative = False
axis = axis[-1]
print 'negative', negative
if camera.is_ortho():
camera.attr['orthographic'] = False
translate_axis = 'translate{}'.format(axis.upper())
# Match values for smooth transition.
trans = camera.transform.attr[translate_axis]
value = camera.attr['orthographicWidth']
center_of_interrest = camera.attr['centerOfInterest']
if value > center_of_interrest:
change = value - camera.attr['centerOfInterest']
camera_move = (trans-change) if negative else (trans+change)
else:
change = center_of_interrest - value
camera_move = (trans+change) if negative else (trans-change)
camera.transform.attr[translate_axis] = camera_move
camera.attr['centerOfInterest'] = abs(value)
else:
camera_center = -camera.attr['centerOfInterest']
center_of_interest_approx = view_vector * camera_center
# Find matching axis from world axes
# Get necessary transforms
cam_translate = camera.transform.get_translation()
cam_rotate = camera.transform.get_rotate()
view_vector = cam_translate - center_of_interest_approx
# Modify non matching world vectors.
for i in 'xyz'.replace(axis, ''):
setattr(cam_translate, i, getattr(view_vector, i))
camera.attr['orthographic'] = True
camera.attr['orthographicWidth'] = abs(camera_center)
camera.transform.attr['translate'] = list(cam_translate)
camera.transform.attr['rotateX'] = int(90 * round(float(cam_rotate.x)/90))
camera.transform.attr['rotateY'] = int(90 * round(float(cam_rotate.y)/90))