Create file4_cube_surface.py

1 files changed, 71 insertions, 0 deletions

diff --git a/FSF-2020/calculus-of-several-variables/triple-and-surface-integrals/flux/file4_cube_surface.py b/FSF-2020/calculus-of-several-variables/triple-and-surface-integrals/flux/file4_cube_surface.py
new file mode 100644
index 0000000..5963996
--- /dev/null
+++ b/FSF-2020/calculus-of-several-variables/triple-and-surface-integrals/flux/file4_cube_surface.py
@@ -0,0 +1,71 @@
+from manimlib.imports import*
+
+
+
+class cuber(ThreeDScene):
+    def construct(self):
+
+        axes=ThreeDAxes()
+        cube=Cube()
+        # cube.scale(1)
+        cube.shift(RIGHT+DOWN+OUT)
+
+        
+
+        sq3=Square(color=RED, fill_opacity=0.85)
+        sq3.rotate(PI/2, axis=UP)
+        sq3.shift(DOWN+OUT+2*RIGHT)
+
+        x=TextMobject("x")
+        y=TextMobject("y")
+        z=TextMobject("z")
+
+        x.rotate(PI/2, axis=RIGHT)
+        x.rotate(PI/4,axis=OUT)
+        x.shift(5.8*DOWN)
+
+        y.rotate(PI/2, axis=RIGHT)
+        y.rotate(PI/8,axis=OUT)
+        y.shift(5.8*RIGHT)
+
+        z.rotate(PI/2, axis=RIGHT)
+        z.rotate(PI/5,axis=OUT)
+        z.shift(3.2*OUT+0.4*LEFT)
+        axis_label=VGroup(x,y,z)
+
+        v1=Vector(color=YELLOW,buff=15)
+        v1.rotate(PI/4,axis=RIGHT)
+        v1.shift(2*RIGHT+1*DOWN+1*OUT)
+
+
+        n1=TextMobject(r"$\vec{n}$",color=YELLOW)
+        n1.scale(0.8)
+        n1.rotate(PI/2,axis=RIGHT)
+        n1.shift(3*RIGHT+1.3*OUT+DOWN)
+
+
+
+        self.set_camera_orientation(phi=75 * DEGREES,theta=-15*DEGREES)
+        self.play(ShowCreation(axes),ShowCreation(axis_label))
+        self.play(ShowCreation(cube, run_time=3))
+        self.begin_ambient_camera_rotation(rate=-0.2)
+        # self.move_camera(phi=150*DEGREES,theta=-45*DEGREES, run_time=3)
+        self.wait(1)
+        self.play(ShowCreation(sq3))
+        
+        self.wait(1)
+        self.play(ShowCreation(v1),ShowCreation(n1))
+        self.wait(1)
+        self.stop_ambient_camera_rotation() 
+        self.wait(2)
+
+
+        # self.play(Write(t1))
+        # self.play(Transform(vg,t1))
+        # self.wait(3)
+        # self.play(ReplacementTransform(t1,t2))
+        # self.wait(3)
+        # # self.move_camera(phi=50*DEGREES,theta=-45*DEGREES,run_time=3)
+        # self.wait(8)
+        # self.move_camera(phi=75 * DEGREES, run_time=3)
+        # self.wait(3)