New thumbnails

_2019/bayes/part1.py

@@ -1019,7 +1019,7 @@ class DescriptionOfSteve(Scene):
         )
 
 
-class IntroduceKahnemanAndTversky(DescriptionOfSteve, MovingCameraScene):
+class IntroduceKahnemanAndTversky(DescriptionOfSteve):
     def construct(self):
         # Introduce K and T
         images = Group(
@@ -4107,6 +4107,10 @@ class BayesTheoremOnProportions(Scene):
         self.wait()
 
 
+class GraphScene(Scene):
+    pass
+
+
 class GlimpseOfNextVideo(GraphScene):
     CONFIG = {
         "x_axis_label": "",
@@ -4826,3 +4830,77 @@ class Thumbnail(Scene):
         self.add(equals, frac)
 
         VGroup(formula, equals, frac).to_edge(UP, buff=SMALL_BUFF)
+
+
+class Thumbnail2(Scene):
+    def construct(self):
+        diagram = BayesDiagram(0.25, 0.4, 0.1)
+
+        # Labels
+        diagram.set_height(3)
+        diagram.add_brace_attrs()
+        braces = VGroup(
+            diagram.h_brace,
+            diagram.he_brace,
+            diagram.nhe_brace,
+        )
+        diagram.add(*braces)
+
+        kw = {
+            "tex_to_color_map": {
+                "H": YELLOW,
+                "E": BLUE,
+                "\\neg": RED,
+            },
+            "font_size": 24,
+        }
+        labels = VGroup(
+            Tex("P(H)", **kw),
+            Tex("P(E|H)", **kw),
+            Tex("P(E|\\neg H)", **kw),
+        )
+
+        for label, brace, vect in zip(labels, braces, [DOWN, LEFT, RIGHT]):
+            label.next_to(brace, vect, buff=SMALL_BUFF)
+
+        diagram.add(*labels)
+        # End labels
+
+        diagram.set_height(5)
+        diagram.to_edge(LEFT)
+        diagram.to_edge(DOWN)
+        self.add(diagram)
+
+        frac = VGroup(
+            diagram.he_rect.copy(),
+            Line(LEFT, RIGHT).set_width(7),
+            VGroup(
+                diagram.he_rect.copy(),
+                Tex("+", font_size=120),
+                diagram.nhe_rect.copy(),
+            ).arrange(RIGHT)
+        ).arrange(DOWN, buff=0.5)
+
+        frac.set_width(5)
+        frac.move_to(diagram, UP)
+        frac.to_edge(RIGHT)
+        self.add(frac)
+
+        right_arrow = Arrow(
+            diagram.get_right(),
+            frac[1].get_left(),
+            thickness=0.1,
+            fill_color=GREEN
+        )
+
+        words = TexText("This is Bayes' rule", font_size=108)
+        words.to_edge(UP)
+
+        arrow = Arrow(
+            words,
+            frac,
+            thickness=0.1,
+        )
+        arrow.scale(1.5, about_point=arrow.get_start())
+
+        self.add(words, arrow)

_2020/med_test.py

@@ -57,9 +57,8 @@ def get_covid_clipboard(disease_name="SARS\\\\CoV-2", sign="+", report="Detected
 
 
 # Scenes
-class Thumbnail(Scene):
+class Thumbnail1(Scene):
     def construct(self):
-        self.clear()
         # New
         bg = FullScreenFadeRectangle()
         bg.set_fill(BLACK, 1)
@@ -104,14 +103,6 @@ class Thumbnail(Scene):
 
         self.add(group)
 
-        clipboard = get_covid_clipboard("Virus")
-        clipboard[2][0].set_stroke(GREEN, 8)
-        clipboard[2].scale(0.9)
-        clipboard.set_width(arrow.get_width() * 1.0)
-        clipboard.next_to(arrow, UP)
-        VGroup(clipboard, arrow).shift_onto_screen(buff=MED_SMALL_BUFF)
-        self.add(clipboard)
-
         # Or try something else...
         self.remove(group)
         randy = Randolph(color=SICKLY_GREEN, mode="sick")
@@ -184,7 +175,7 @@ class Thumbnail(Scene):
         self.embed()
 
 
-class AltThumbnail(Scene):
+class Thumbnail2(Scene):
     def construct(self):
         dots = Dot().get_grid(9 * 5, 16 * 5, buff=MED_LARGE_BUFF)
         dots.set_height(FRAME_HEIGHT)
@@ -237,6 +228,40 @@ class AltThumbnail(Scene):
         # VGroup(formula, rect, rect_label).to_edge(DOWN)
 
 
+class Thumbnail3(Scene):
+    def construct(self):
+        bg = FullScreenFadeRectangle()
+        bg.set_fill(BLACK, 1)
+        bg.set_gloss(0.4)
+        self.add(bg)
+
+        # Just the clipboard
+        clipboard = get_covid_clipboard("Cancer", color=GREEN)
+        clipboard[2][0].set_stroke(GREEN, 8)
+        clipboard[2].scale(0.9)
+        clipboard.set_height(7)
+        clipboard.center().to_edge(LEFT, buff=MED_SMALL_BUFF)
+        self.add(clipboard)
+
+        clipback = VMobject()
+        clipback.set_points(clipboard[1].get_subpaths()[0])
+        clipback.set_stroke(BLACK, 0)
+        clipback.set_fill(BLACK, 1)
+        self.add(clipback, clipboard)
+
+        # Title
+        words = VGroup(
+            TexText("90\\% test accuracy", tex_to_color_map={"90\\%": GREEN}),
+            Tex("&9\\%\\text{ chance it's true}", tex_to_color_map={"9\\%": RED}),
+            Text("...how?")
+        )
+        words.arrange(DOWN, buff=0.75, aligned_edge=LEFT)
+        words.set_width(FRAME_WIDTH - clipboard.get_width() - 1.5)
+        words.to_edge(RIGHT, buff=0.5)
+        words.set_stroke(BLACK, 10, background=True)
+        self.add(words)
+
+
 class MathAsDesign(Scene):
     def construct(self):
         # Setup