From 19916e39ad44abf72c9e73f8df1984e11612d3bf Mon Sep 17 00:00:00 2001
From: G Sri Harsha
Date: Wed, 8 Jul 2020 13:01:30 +0530
Subject: updated

---
 .../Fourier Transform/video4_FourierSeriesOfSquarePulse.py  | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'FSF-2020/calculus/series-and-transformations/Fourier Transform/video4_FourierSeriesOfSquarePulse.py')

diff --git a/FSF-2020/calculus/series-and-transformations/Fourier Transform/video4_FourierSeriesOfSquarePulse.py b/FSF-2020/calculus/series-and-transformations/Fourier Transform/video4_FourierSeriesOfSquarePulse.py
index 5d33fbe..fdf4bb3 100644
--- a/FSF-2020/calculus/series-and-transformations/Fourier Transform/video4_FourierSeriesOfSquarePulse.py	
+++ b/FSF-2020/calculus/series-and-transformations/Fourier Transform/video4_FourierSeriesOfSquarePulse.py	
@@ -33,9 +33,9 @@ class fourierSeries(GraphScene,MovingCameraScene):
         x_each_unit = self.x_axis_width / (self.x_max - self.x_min)
         y_each_unit = self.y_axis_height / (self.y_max - self.y_min)   
 
-        equation=TextMobject("$f(x)=\\frac { 4 }{ \pi  } \sum _{ k=1,3,5.. }^{ \infty  }{ \\frac { 1 }{ k } \sin { 2\pi kx }  }$").shift(5*RIGHT+3*UP).set_color(RED).scale(0.4)
+        equation=TextMobject("$f(x)=\\frac { 4 }{ \pi  } \sum _{ k=1,3,5.. }^{ \infty  }{ \\frac { 1 }{ k } \sin { 2\pi kx }  }$").shift(5*RIGHT+3*UP).set_color(RED).scale(0.5)
         self.add(equation)
-        self.setup_axes(animate=True)
+        self.setup_axes(animate=True,scalee=1)
         line1=Line(start=(-x_each_unit,y_each_unit,0),end=(-(1/2)*x_each_unit,y_each_unit,0),color=RED)
         line2=Line(start=(-(1/2)*x_each_unit,y_each_unit,0),end=(-(1/2)*x_each_unit,-y_each_unit,0),color=RED)
         line3=Line(start=(-(1/2)*x_each_unit,-y_each_unit,0),end=(0,-y_each_unit,0),color=RED)
@@ -87,6 +87,11 @@ class fourierSeries(GraphScene,MovingCameraScene):
         self.wait(1)
         self.camera_frame.save_state()
         self.play(self.camera_frame.set_width, 2.25,self.camera_frame.move_to, y_each_unit*UP+RIGHT*x_each_unit*0.3)
-        self.wait(1)
-        self.play(self.camera_frame.set_width,14,self.camera_frame.move_to,0)
+        circleMark=Circle(radius=0.1,color=GREEN).shift(x_each_unit*RIGHT*0.47+UP*y_each_unit*1.1)
+        text=TextMobject("Gibbs","phenomenon").set_color_by_tex_to_color_map({"Gibbs":BLUE,"phenomenon":YELLOW}).scale(0.1).shift(RIGHT*x_each_unit*0.65+UP*y_each_unit*1.1)
+        self.wait(0.7)
+        self.play(ShowCreation(circleMark))
+        self.play(Write(text))
+        self.wait(0.5)
+        self.play(self.camera_frame.set_width,14,self.camera_frame.move_to,0,FadeOut(circleMark),FadeOut(text))
         self.wait(2)
-- 
cgit