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incremental progress

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This commit is contained in:
Ben Hambrecht 2018-02-19 09:17:00 +01:00
parent f178a6981c
commit 7eca959e2f
1 changed files with 26 additions and 9 deletions
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35
active_projects/basel.py
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@ -1001,6 +1001,7 @@ class ScreenShapingScene(ThreeDScene):
def construct(self):
#self.force_skipping()
self.setup_elements()
self.deform_screen()
self.create_brightness_rect()
@ -1010,8 +1011,10 @@ class ScreenShapingScene(ThreeDScene):
self.add_distance_arrow()
self.right_shift_screen_while_showing_light_indicator_and_distance_arrow()
self.left_shift_again()
#self.revert_to_original_skipping_status()
self.morph_into_3d()
self.prove_inverse_square_law()
def setup_elements(self):
@ -1248,6 +1251,8 @@ class ScreenShapingScene(ThreeDScene):
def morph_into_3d(self):
self.play(FadeOut(self.morty))
axes = ThreeDAxes()
self.add(axes)
@ -1255,11 +1260,6 @@ class ScreenShapingScene(ThreeDScene):
theta0 = self.camera.get_theta() # default is -90 degs
distance0 = self.camera.get_distance()
# this is an ugly hack bc remove, FadeOut and SwitchOff don't work
self.play(
self.light_source.set_max_opacity_ambient,0.001
)
phi1 = 60 * DEGREES # angle from zenith (0 to 180)
theta1 = -135 * DEGREES # azimuth (0 to 360)
distance1 = distance0
@ -1272,7 +1272,7 @@ class ScreenShapingScene(ThreeDScene):
projection_direction = self.camera.spherical_coords_to_point(phi1,theta1, 1)
new_screen0 = Rectangle(height = self.screen_height,
width = 0.1, stroke_color = RED)
width = 0.1, stroke_color = RED, fill_color = RED, fill_opacity = 1)
new_screen0.rotate(TAU/4,axis = DOWN)
new_screen0.move_to(self.screen.get_center())
self.add(new_screen0)
@ -1282,19 +1282,36 @@ class ScreenShapingScene(ThreeDScene):
self.light_source.set_camera(self.camera)
new_screen = new_screen0.deepcopy()
new_screen.width = new_screen.height
new_screen = Rectangle(height = self.screen_height,
width = self.screen_height, stroke_color = RED, fill_color = RED, fill_opacity = 1)
new_screen.rotate(TAU/4,axis = DOWN)
new_screen.move_to(self.screen.get_center())
self.add_foreground_mobject(self.ambient_light)
self.add_foreground_mobject(self.spotlight)
self.play(
ApplyMethod(self.camera.rotation_mobject.move_to, camera_target_point),
)
#self.play(Transform(new_screen0,new_screen))
self.play(Transform(new_screen0,new_screen))
self.wait()
self.unit_screen = new_screen0 # better name
def prove_inverse_square_law(self):
unit_screen_copy = self.unit_screen.copy()
fourfold_screen = self.unit_screen.copy()
fourfold_screen.scale(2,about_point = self.light_source.get_source_point())
self.play(
Transform(self.unit_screen, fourfold_screen)
)