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Added default frame to MovingCamera

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This commit is contained in:
Grant Sanderson 2018-04-09 23:32:57 -07:00
parent cec2478031
commit cffbcaa793
1 changed files with 7 additions and 1 deletions
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8
camera/moving_camera.py
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@ -1,6 +1,9 @@
from __future__ import absolute_import
from constants import FRAME_HEIGHT
from camera.camera import Camera
from mobject.frame import ScreenRectangle
class MovingCamera(Camera):
@ -12,11 +15,14 @@ class MovingCamera(Camera):
"aligned_dimension": "width" # or height
}
def __init__(self, frame, **kwargs):
def __init__(self, frame=None, **kwargs):
"""
frame is a Mobject, (should be a rectangle) determining
which region of space the camera displys
"""
if frame is None:
frame = ScreenRectangle(height=FRAME_HEIGHT)
frame.fade(1)
self.frame = frame
Camera.__init__(self, **kwargs)