diff --git a/active_projects/eop/chapter1.py b/active_projects/eop/chapter1.py index af5ed99a..d3c6e58e 100644 --- a/active_projects/eop/chapter1.py +++ b/active_projects/eop/chapter1.py @@ -728,7 +728,7 @@ class IllustrateAreaModel1(Scene): Transform(indep_formula.get_part_by_tex("\cdot"), rearranged_formula[2][8]), ) - rect = SurroundingRectangle(rearranged_formula) + rect = SurroundingRectangle(rearranged_formula, buff = 0.5 * MED_LARGE_BUFF) self.play(ShowCreation(rect)) @@ -863,7 +863,7 @@ class IllustrateAreaModel3(Scene): def construct(self): formula = TexMobject("E[X] = \sum_{i=1}^N p_i x_i").move_to(3 * LEFT + UP) - self.add(formula) + self.play(Write(formula)) x_scale = 5.0 @@ -904,18 +904,14 @@ class IllustrateAreaModel3(Scene): group = VGroup(brace, p_label) braces.add(brace) p_labels.add(p_label) - self.play( - Write(group) - ) + + self.play( + LaggedStart(FadeIn,braces), + LaggedStart(FadeIn, p_labels) + ) - labels = VGroup() - for (y, bar) in zip(y_values, hist.bars): - label = TexMobject(str(int(y))).scale(0.7).next_to(bar, UP, buff = SMALL_BUFF) - self.play(FadeIn(label)) - labels.add(label) - y_average = np.mean(y_values) averaged_y_values = y_average * np.ones(np.shape(y_values)) @@ -923,27 +919,33 @@ class IllustrateAreaModel3(Scene): mode = "widths", x_scale = x_scale, y_scale = y_scale, - x_labels = "none" + x_labels = "none", + y_labels = "none" ).fade(0.2) ghost_hist = hist.copy().fade(0.8) - labels.fade(0.8) self.bring_to_back(ghost_hist) - self.play(Transform(hist, averaged_hist)) + self.play(Transform(hist, averaged_hist, run_time = 3)) + self.wait() - average_label = TexMobject(str(y_average)).scale(0.7).next_to(averaged_hist, UP, SMALL_BUFF) + average_brace = Brace(averaged_hist, RIGHT, buff = 0.1) + average_label = TexMobject(str(y_average)).scale(0.7) + average_label.next_to(average_brace, RIGHT, SMALL_BUFF) + average_group = VGroup(average_brace, average_label) one_brace = Brace(averaged_hist, DOWN, buff = 0.1) one_p_label = TexMobject(str(1)).next_to(one_brace, DOWN, buff = SMALL_BUFF).scale(0.7) one_group = VGroup(one_brace, one_p_label) self.play( - FadeIn(average_label), + FadeIn(average_group), Transform(braces, one_brace), Transform(p_labels, one_p_label), ) + rect = SurroundingRectangle(formula, buff = 0.5 * MED_LARGE_BUFF) + self.play(ShowCreation(rect))