Mobject

The defined distorting functions for Mobject in mobject.py

• def wag(self, direction=RIGHT, axis=DOWN, wag_factor=1.0)
• def pose_at_angle(self, **kwargs)
• def put_start_and_end_on(self, start, end)

Distorting

def wag(self, direction=RIGHT, axis=DOWN, wag_factor=1.0)

def wag is used to deform a Mobject with respect to the specified axis parameter, default axis is DOWN, in the specified direction parametet, default direction is RIGHT, according to the specified parameters. 

def pose_at_angle(self, **kwargs)

def pose_at_angle is used to rotate a Mobject about the center of the Mobject, with respect to the specified axis parameter, default axis is RIGHT + UP, with the specified angle parametet, default angle is TAU / 14, according to the specified parameters. 

def put_start_and_end_on(self, start, end)

def put_start_and_end_on is used to distort an open Mobject by puting the start and end on the specified start parameter, start, and the specified end parameter, end, according to the specified parameters. 

Example

Code

# folder/file: tut/manim_mobject_func_distorting_001a.py

from manimlib.scene.scene import Scene
from manimlib.mobject.geometry import Rectangle, Square, Circle, Line,RoundedRectangle
from manimlib.animation.creation import ShowCreation
from manimlib.mobject.svg.tex_mobject import TexMobject, TextMobject
from manimlib.animation.fading import FadeOut
from manimlib.animation.creation import Write
from manimlib.animation.transform import ApplyMethod, ApplyFunction

class manim_mobject_func_distorting_001a(Scene): 
   def construct(self):
      linex=Line([2,2,0],[1,1,0],color="#88FF00")
      polya= RoundedRectangle(width=2,height=2,corner_radius=0.5,stroke_width=0,fill_color="#FFFF00",fill_opacity=1)
      polyb = Rectangle(width=2.5,height=1.5,stroke_width=15,color="#88FF00",fill_color="#FFFF00",fill_opacity=1)
      polyc= Square(side_length=2,stroke_width=20,fill_color="#FF8800",fill_opacity=1).move_to([-3,-2,0])
      polyd= Circle(arc_center=(-2,0.75,0),color="#888888")
      polya.add(Rectangle(width=2,height=2,color="#77DDCC").move_to(polya))
      polya.add(Rectangle(width=1,height=2.5,color="#77DDCC").move_to(polya))
      polya.add(TextMobject("A").move_to(polya))
      polye = Rectangle(width=1.25,height=3.75,color="#888888",fill_color="#333333",fill_opacity=1).move_to([-0.625,-1.125,0])
      polyf= Rectangle(width=1,height=2,color="#888888").move_to([-2.5,-2,0])
      self.play(ShowCreation(polyb),ShowCreation(polye),run_time=2)
      self.wait()
      self.play(ShowCreation(polyc),ShowCreation(polyf),run_time=2)
      self.wait()
      self.play(ShowCreation(polya.move_to(polyd)),ShowCreation(polyd),run_time=2)
      self.wait()
      self.add(TextMobject("B").move_to(polyb))
      self.add(TextMobject("C").move_to(polyc))
      self.add(TextMobject("E").move_to(polye))
      self.add(linex)
      self.add(Rectangle(width=14.22,height=8))
      text=TexMobject(r"polya.wag()").move_to([0,3,0])
      self.play(Write(text),ApplyFunction(lambda mob:mob.wag(),polya),run_time=3)
      self.wait()
      self.play(FadeOut(text),run_time=2)
      text=TexMobject(r"polyc.pose\_at\_angle()").move_to([0,3,0])
      self.play(Write(text),ApplyFunction(lambda mob:mob.pose_at_angle(),polyc),run_time=5)
      self.wait()
      self.play(FadeOut(text),run_time=2)
      text=TexMobject(r"linex.put\_start\_and\_end\_on\\(start=polyc.get_center(),end=polyb.get_center())").move_to([0,3,0])
      self.play(Write(text),ApplyFunction(lambda mob:mob.put_start_and_end_on(start=polyc.get_center(),end=polyb.get_center()),linex),run_time=3)
      self.wait()
      self.play(FadeOut(text),run_time=2)

Output