Merge pull request #52 from architsangal/master

Rearranging files

1 files changed, 52 insertions, 0 deletions

diff --git a/FSF-2020/linear-algebra/linear-transformations/Linear-Transformations-(Linear-Maps)/file7_Vertical_Shear.py b/FSF-2020/linear-algebra/linear-transformations/Linear-Transformations-(Linear-Maps)/file7_Vertical_Shear.py
new file mode 100644
index 0000000..718e4e0
--- /dev/null
+++ b/FSF-2020/linear-algebra/linear-transformations/Linear-Transformations-(Linear-Maps)/file7_Vertical_Shear.py
@@ -0,0 +1,52 @@
+from manimlib.imports import *
+
+class Ver_Shear(GraphScene):
+    CONFIG = {
+        "x_min" : -5,
+        "x_max" : 5,
+        "y_min" : -5,
+        "y_max" : 5,
+        "graph_origin" : ORIGIN+3.5*LEFT,
+        "x_axis_width" : 7,
+        "y_axis_height" : 7
+        #"x_labeled_nums" : list(range(-5,6)),
+        #"y_labeled_nums" : list(range(-5,6)),
+    }
+
+    def construct(self):
+        XTD = self.x_axis_width/(self.x_max-self.x_min)
+        YTD = self.y_axis_height/(self.y_max-self.y_min)
+
+        Text1 = TextMobject("Before"," Vertical")
+        Text1[0].set_color(YELLOW)
+        Text2 = TextMobject("Shear Transformation")
+
+        Text1.move_to(4*RIGHT+2*UP)
+        Text2.move_to(4*RIGHT+1*UP)
+        
+        self.setup_axes(animate=False)
+        arrow_i = Arrow(stroke_width = 3, start = self.graph_origin + 0.25*LEFT, end = self.graph_origin+1*XTD*RIGHT+ 0.25*RIGHT)
+        arrow_j = Arrow(stroke_width = 3, start = self.graph_origin + 0.25*DOWN, end = self.graph_origin+1*XTD*UP+0.25*UP)
+        arrow_i.set_color(YELLOW)
+        arrow_j.set_color(YELLOW)
+
+        square = Polygon(self.graph_origin,self.graph_origin+2*XTD*RIGHT, self.graph_origin+2*XTD*RIGHT+2*YTD*UP,  self.graph_origin+2*YTD*UP)
+        square.set_color(DARK_BLUE)
+        self.play(ShowCreation(square), Write(Text1), Write(Text2), ShowCreation(arrow_i), ShowCreation(arrow_j))
+        self.wait(1)
+
+        Text3 = TextMobject("After"," Vertical")
+        Text3[0].set_color(RED)
+        Text4 = TextMobject("Shear Transformation")
+
+        Text3.move_to(4*RIGHT+2*UP)
+        Text4.move_to(4*RIGHT+1*UP)
+        
+        trans_arrow_i = Arrow(stroke_width = 3, start = self.graph_origin + 0.15*DOWN + 0.15*LEFT, end = self.graph_origin+1*XTD*UP+1*YTD*RIGHT+0.25*UP+0.25*RIGHT)
+        trans_arrow_j = Arrow(stroke_width = 3, start = self.graph_origin + 0.25*DOWN, end = self.graph_origin+1*XTD*UP+ 0.25*UP)
+        trans_arrow_i.set_color(RED)
+        trans_arrow_j.set_color(RED)
+        
+        rhombus = Polygon(self.graph_origin,self.graph_origin+2*XTD*UP, self.graph_origin+2*XTD*RIGHT+4*YTD*UP,  self.graph_origin+2*XTD*RIGHT+2*YTD*UP)
+        self.play(Transform(arrow_i,trans_arrow_i), Transform(arrow_j,trans_arrow_j), FadeOut(square), ShowCreation(rhombus), Transform(Text1,Text3), Transform(Text2,Text4))
+        self.wait(1)
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