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Small fix in fourier file

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This commit is contained in:
Grant Sanderson
2018-08-23 14:46:56 -07:00
parent 52ec0cf8ea
commit c8469681cd
1 changed files with 11 additions and 5 deletions
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16
old_projects/fourier.py
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@ -1273,7 +1273,7 @@ class WrapCosineGraphAroundCircle(FourierMachineScene):
def get_winding_frequency_label(self): def get_winding_frequency_label(self):
freq = self.initial_winding_frequency freq = self.initial_winding_frequency
winding_freq_label = VGroup( winding_freq_label = VGroup(
DecimalNumber(freq, num_decimal_places = 2), DecimalNumber(freq, num_decimal_places=2),
TextMobject("cycles/second") TextMobject("cycles/second")
) )
winding_freq_label.arrange_submobjects(RIGHT) winding_freq_label.arrange_submobjects(RIGHT)
@ -1639,8 +1639,14 @@ class DrawFrequencyPlot(WrapCosineGraphAroundCircle, PiCreatureScene):
added_anims = kwargs.get("added_anims", []) added_anims = kwargs.get("added_anims", [])
anims = [self.get_frequency_change_animation(self.graph, new_freq)] anims = [self.get_frequency_change_animation(self.graph, new_freq)]
if hasattr(self, "winding_freq_label"): if hasattr(self, "winding_freq_label"):
freq_label = [sm for sm in self.winding_freq_label if isinstance(sm, DecimalNumber)][0] freq_label = [
anims.append(ChangeDecimalToValue(freq_label, new_freq)) sm for sm in self.winding_freq_label
if isinstance(sm, DecimalNumber)
][0]
self.add(freq_label)
anims.append(
ChangeDecimalToValue(freq_label, new_freq)
)
if hasattr(self, "v_lines_indicating_periods"): if hasattr(self, "v_lines_indicating_periods"):
anims.append(self.get_period_v_lines_update_anim()) anims.append(self.get_period_v_lines_update_anim())
if hasattr(self, "center_of_mass_dot"): if hasattr(self, "center_of_mass_dot"):
@ -1838,8 +1844,8 @@ class ShowLinearity(DrawFrequencyPlot):
"high_freq_color": YELLOW, "high_freq_color": YELLOW,
"low_freq_color": PINK, "low_freq_color": PINK,
"sum_color": GREEN, "sum_color": GREEN,
"low_freq" : 2.0, "low_freq" : 3.0,
"high_freq" : 3.0, "high_freq" : 4.0,
"circle_plane_config" : { "circle_plane_config" : {
"x_radius" : 2.5, "x_radius" : 2.5,
"y_radius" : 2.7, "y_radius" : 2.7,