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incremental progress

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Ben Hambrecht 2018-02-07 18:09:36 +01:00
parent 2c4fa36073
commit 082d67ec84
1 changed files with 35 additions and 34 deletions
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65
active_projects/basel.py
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@ -1211,7 +1211,7 @@ class BackToEulerSumScene(PiCreatureScene):
def construct(self): def construct(self):
#self.remove(self.get_primary_pi_creature()) self.remove(self.get_primary_pi_creature())
NUM_CONES = 7 NUM_CONES = 7
NUM_VISIBLE_CONES = 6 NUM_VISIBLE_CONES = 6
@ -1232,7 +1232,7 @@ class BackToEulerSumScene(PiCreatureScene):
) )
self.number_line.label_direction = DOWN self.number_line.label_direction = DOWN
self.number_line.shift(3*UP) #self.number_line.shift(3*UP)
self.number_line_labels = self.number_line.get_number_mobjects() self.number_line_labels = self.number_line.get_number_mobjects()
self.add(self.number_line,self.number_line_labels) self.add(self.number_line,self.number_line_labels)
@ -1256,7 +1256,7 @@ class BackToEulerSumScene(PiCreatureScene):
bubble = ThoughtBubble(direction = RIGHT, bubble = ThoughtBubble(direction = RIGHT,
width = 4, height = 3, width = 4, height = 3,
file_name = "Bubbles_thought.svg") file_name = "Bubbles_thought.svg")
bubble.next_to(randy,LEFT) bubble.next_to(randy,LEFT+UP)
bubble.set_fill(color = BLACK, opacity = 1) bubble.set_fill(color = BLACK, opacity = 1)
self.play( self.play(
@ -1295,58 +1295,57 @@ class BackToEulerSumScene(PiCreatureScene):
self.play(SwitchOn(light_source.ambient_light)) self.play(SwitchOn(light_source.ambient_light))
# create an indicator and move a copy of it into the thought bubble # create an indicator that will move along the number line
indicator = LightIndicator(color = LIGHT_COLOR, indicator = LightIndicator(color = LIGHT_COLOR,
radius = INDICATOR_RADIUS, radius = INDICATOR_RADIUS,
opacity_for_unit_intensity = 0.2, #OPACITY_FOR_UNIT_INTENSITY, opacity_for_unit_intensity = 0.2, #OPACITY_FOR_UNIT_INTENSITY,
show_reading = False show_reading = False
) )
indicator_reading = euler_sum[0] indicator_reading = euler_sum[0]
indicator_reading.scale_to_fit_height(0.5 * indicator.get_height()) indicator_reading.scale_to_fit_height(0.5 * indicator.get_height())
indicator_reading.move_to(indicator.get_center()) indicator_reading.move_to(indicator.get_center())
indicator.add(indicator_reading) indicator.add(indicator_reading)
indicator.tex_reading = indicator_reading
indicator.foreground.set_fill(None,opacities[0]) indicator.foreground.set_fill(None,opacities[0])
indicator.move_to(point) indicator.move_to(point)
indicator.set_intensity(intensities[0]) indicator.set_intensity(intensities[0])
self.play(FadeIn(indicator)) self.add_foreground_mobject(indicator)
indicator_copy = indicator.deepcopy()
self.add_foreground_mobject(indicator_copy)
self.play(indicator_copy.move_to, bubble)
moving_light_source = light_source.deepcopy() collection_point = np.array([-5,2,0])
ls = []
ls.append(moving_light_source)
for i in range(2, NUM_VISIBLE_CONES + 1):
for i in range(2,NUM_VISIBLE_CONES + 1):
previous_point = self.number_line.number_to_point(i - 1) previous_point = self.number_line.number_to_point(i - 1)
point = self.number_line.number_to_point(i) point = self.number_line.number_to_point(i)
indicator_copy = indicator.deepcopy() # Create and position the target indicator (next on number line).
indicator_copy.move_to(previous_point)
self.add_foreground_mobject(indicator_copy)
indicator_target = indicator.deepcopy() indicator_target = indicator.deepcopy()
indicator_target.move_to(point) indicator_target.move_to(point)
ls[-1].set_max_opacity_ambient(0.0001) # Here we make a copy that will move into the thought bubble.
self.add(ls[-1].ambient_light) bubble_indicator = indicator.deepcopy()
ls.append(ls[-1].deepcopy()) # And its target
ls[-1].move_source_to(point)
ls[-1].set_max_opacity_ambient(0.5)
bubble_indicator = indicator_copy.deepcopy()
bubble_indicator_target = bubble_indicator.deepcopy() bubble_indicator_target = bubble_indicator.deepcopy()
bubble_indicator_target.set_intensity(intensities[i-1]) bubble_indicator_target.set_intensity(intensities[i - 2])
bubble_indicator_target.reading = euler_sum[-2+2*i]
# give the target the appropriate reading
bubble_indicator_target.remove(bubble_indicator_target.tex_reading)
bubble_indicator_target.tex_reading = euler_sum[2*i-4]
bubble_indicator_target.add(bubble_indicator_target.tex_reading)
# center it in the indicator
bubble_indicator_target.tex_reading.move_to(
bubble_indicator_target.get_center())
bubble_indicator_target.reading.scale_to_fit_height(0.8*indicator.get_height()) bubble_indicator_target.reading.scale_to_fit_height(0.8*indicator.get_height())
bubble_indicator_target.move_to(bubble)
# position the target in the thought bubble
print "center:", bubble_indicator_target.get_center()
bubble_indicator_target.move_to(collection_point)
print "-center:", bubble_indicator_target.get_center()
self.add_foreground_mobject(bubble_indicator) self.add_foreground_mobject(bubble_indicator)
@ -1355,11 +1354,13 @@ class BackToEulerSumScene(PiCreatureScene):
) )
self.play( self.play(
Transform(ls[-2], ls[-1]), Transform(indicator,indicator_target),
Transform(indicator_copy,indicator_target),
) )
new_light = light_source.deepcopy()
new_light.move_source_to(point)
self.play(SwitchOn(new_light.ambient_light))