Shape Matcher

The defined shape matcher VMobject in shape_matchers.py

• Class SurroundingRectangle(Rectangle)
• Class BackgroundRectangle(SurroundingRectangle)
• Class Cross(VGroup)
• Class Underline(Line)

Class SurroundingRectangle(Rectangle)

SurroundingRectangle is used to generate a surrounding rectangle with respect to specified VMobject for given parameters.

Example

Code

# folder/file: tut/manim_mobject_surroundingrectangle_001a.py

from manimlib.scene.scene import Scene
from manimlib.mobject.shape_matchers import SurroundingRectangle
from manimlib.mobject.geometry import VMobject, Square, Triangle
from manimlib.mobject.svg.tex_mobject import TexMobject

class manim_mobject_surroundingrectangle_001a(Scene):
    def construct(self):
        triangle=Triangle(fill_color="#FF3300",fill_opacity=1)
        trianglebg=SurroundingRectangle(triangle,fill_opacity=1)
        self.add(VMobject.add(trianglebg,triangle).move_to([-3,3,0])).wait(2)
        triangle=Triangle(fill_color="#333300",fill_opacity=1)
        trianglebg=SurroundingRectangle(triangle,fill_opacity=0.5).shift([1,0,0])
        self.add(VMobject.add(triangle,trianglebg).move_to([3,3,0])).wait(2)
        self.add(SurroundingRectangle(VMobject.add(triangle,trianglebg)).move_to([-3,-3,0])).wait(2)
        text1= TexMobject("TEXT").move_to([3,-1.5,0])
        text1bg= SurroundingRectangle(text1,color="#FF3300",fill_color="#FF3333", fill_opacity=.5) 
        self.add(VMobject.add(text1bg,text1).move_to([3,-3,0])).wait(2)

Output

Class BackgroundRectangle(SurroundingRectangle)

BackgroundRectangle is used to generate a background rectangle with respect to specified VMobject for given parameters.

Example

Code

# folder/file: tut/manim_mobject_backgroundrectangle_001a.py

from manimlib.scene.scene import Scene
from manimlib.mobject.shape_matchers import BackgroundRectangle
from manimlib.mobject.geometry import VMobject, Square, Triangle
from manimlib.mobject.svg.tex_mobject import TexMobject

class manim_mobject_backgroundrectangle_001a(Scene):
    def construct(self):
        triangle=Triangle(fill_color="#FF3300",fill_opacity=1)
        trianglebg=BackgroundRectangle(triangle,fill_color="#FFFFFF",fill_opacity=1)
        self.add(VMobject.add(trianglebg,triangle).move_to([-3,3,0])).wait(2)
        triangle=Triangle(fill_color="#333300",fill_opacity=1)
        trianglebg=BackgroundRectangle(triangle,fill_color="#FFFFFF",fill_opacity=0.5).shift([1,0,0])
        self.add(VMobject.add(triangle,trianglebg).move_to([3,3,0])).wait(2)
        self.add(BackgroundRectangle(VMobject.add(triangle,trianglebg),fill_color="#FFFFFF").move_to([-3,-3,0])).wait(2)
        text1= TexMobject("TEXT")
        text1bg= BackgroundRectangle(text1,color="#FFFF00",fill_color="#FFFFFF", fill_opacity=.5) 
        self.add(VMobject.add(text1bg,text1).move_to([3,-3,0])).wait(2)

Output

Class Cross(VGroup)

Cross is used to generate a cross with respect to specified VMobject for given parameters.

Example

Code

# folder/file: tut/manim_mobject_cross_001a.py

from manimlib.scene.scene import Scene
from manimlib.mobject.shape_matchers import Cross
from manimlib.mobject.geometry import VMobject, Square, Triangle
from manimlib.mobject.svg.tex_mobject import TexMobject

class manim_mobject_cross_001a(Scene):
    def construct(self):
        triangle=Triangle(fill_color="#FF3300",fill_opacity=1)
        trianglebg=Cross(triangle,fill_color="#FFFFFF",fill_opacity=1)
        self.add(VMobject.add(trianglebg,triangle).move_to([-3,3,0])).wait(2)
        triangle=Triangle(fill_color="#333300",fill_opacity=1)
        trianglebg=Cross(triangle,fill_color="#FFFFFF",fill_opacity=0.5).shift([1,0,0])
        self.add(VMobject.add(triangle,trianglebg).move_to([3,3,0])).wait(2)
        self.add(Cross(VMobject.add(triangle,trianglebg),fill_color="#FFFFFF").move_to([-3,-3,0])).wait(2)
        text1= TexMobject("TEXT")
        text1bg= Cross(text1,color="#FFFF00",fill_color="#FFFFFF", fill_opacity=.5) 
        self.add(VMobject.add(text1bg,text1).move_to([3,-3,0])).wait(2)

Output

Class Underline(Line)

Underline is used to generate an underline with respect to specified VMobject for given parameters.

Example

Code

# folder/file: tut/manim_mobject_underline_001a.py

from manimlib.scene.scene import Scene
from manimlib.mobject.shape_matchers import Underline
from manimlib.mobject.geometry import VMobject, Square, Triangle
from manimlib.mobject.svg.tex_mobject import TexMobject

class manim_mobject_underline_001a(Scene):
    def construct(self):
        triangle=Triangle(fill_color="#FF3300",fill_opacity=1)
        trianglebg=Underline(triangle,fill_color="#FFFFFF",fill_opacity=1)
        self.add(VMobject.add(trianglebg,triangle).move_to([-3,3,0])).wait(2)
        triangle=Triangle(fill_color="#333300",fill_opacity=1)
        trianglebg=Underline(triangle,fill_color="#FFFFFF",fill_opacity=0.5).shift([1,0,0])
        self.add(VMobject.add(triangle,trianglebg).move_to([3,3,0])).wait(2)
        self.add(Underline(VMobject.add(triangle,trianglebg),fill_color="#FFFFFF").move_to([-3,-3,0])).wait(2)
        text1= TexMobject("TEXT")
        text1bg= Underline(text1,color="#FFFF00",fill_color="#FFFFFF", fill_opacity=.5) 
        self.add(VMobject.add(text1bg,text1).move_to([3,-3,0])).wait(2)

Output