fig 5 changed to video 3

1 files changed, 27 insertions, 0 deletions

diff --git a/FSF-2020/linear-algebra/linear-transformations/Linear-Transformations-(Linear-Maps)/file5_linear_transformation.py b/FSF-2020/linear-algebra/linear-transformations/Linear-Transformations-(Linear-Maps)/file5_linear_transformation.py
new file mode 100755
index 0000000..01a0cef
--- /dev/null
+++ b/FSF-2020/linear-algebra/linear-transformations/Linear-Transformations-(Linear-Maps)/file5_linear_transformation.py
@@ -0,0 +1,27 @@
+from manimlib.imports import *

+class LinearTrans(LinearTransformationScene,MovingCameraScene):

+        CONFIG = {

+        "basis_vector_stroke_width": 1,

+        "leave_ghost_vectors": True,

+        }

+

+        def setup(self):

+            LinearTransformationScene.setup(self)

+            MovingCameraScene.setup(self)

+        

+        def construct(self):

+            self.setup()

+            self.camera_frame.save_state()

+            self.play(self.camera_frame.set_width, 7)

+            matrix = [[0.866,-0.5],[0.5,0.866]]

+            self.apply_matrix(matrix)

+            arc1 = Arc(radius = 0.25,angle=TAU/12)

+            arc2 = Arc(radius = 0.25,angle=TAU/12,start_angle=TAU/4)

+            text1 = TextMobject(r"$\theta$")

+            text1.scale(0.5)

+            text1.move_to(0.5*UP+0.125*LEFT)

+            text2 = TextMobject(r"$\theta$")

+            text2.scale(0.5)

+            text2.move_to(0.5*RIGHT+0.125*UP)

+            self.play(ShowCreation(arc1),ShowCreation(arc2),Write(text1),Write(text2),run_time=1)

+            self.wait()