DifferentConceptions ok

manim.py

@@ -29,9 +29,11 @@ if __name__ == "__main__":
     # sys.argv.extend(['old_projects/eola/chapter0.py', 'AboutPacing', '-pl'])
     # sys.argv.extend(['old_projects/eola/chapter0.py', 'DifferingBackgrounds', '-pl'])
     # sys.argv.extend(['old_projects/eola/chapter0.py', 'PauseAndPonder', '-pl'])
-    sys.argv.extend(['old_projects/eola/chapter0.py', 'NextVideo', '-pl'])
+    # sys.argv.extend(['old_projects/eola/chapter0.py', 'NextVideo', '-pl'])
     
 
+    # sys.argv.extend(['old_projects/eola/chapter1.py', 'OpeningQuote', '-pl'])
+    sys.argv.extend(['old_projects/eola/chapter1.py', 'DifferentConceptions', '-pl'])
 
 
     manimlib.main()

manimlib/mobject/svg/svg_mobject.py

@@ -172,7 +172,10 @@ class SVGMobject(VMobject):
         stroke_color = rect_element.getAttribute("stroke")
         stroke_width = rect_element.getAttribute("stroke-width")
         corner_radius = rect_element.getAttribute("rx")
-
+    
+        # 设置默认的opacity值
+        opacity = self.fill_opacity  # 使用类的默认fill_opacity值
+        
         # input preprocessing
         if fill_color in ["", "none", "#FFF", "#FFFFFF"] or Color(fill_color) == Color(WHITE):
             opacity = 0

old_projects/eola/chapter1.py

@@ -48,7 +48,7 @@ class DifferentConceptions(Scene):
         physy.title = TextMobject("Physics student").to_corner(DOWN+LEFT)
         compy.title = TextMobject("CS student").to_corner(DOWN+RIGHT)
         mathy.title = TextMobject("Mathematician").to_edge(DOWN)
-        names = VMobject(physy.title, mathy.title, compy.title)
+        names = VGroup(physy.title, mathy.title, compy.title)
         names.arrange(RIGHT, buff = 1)
         names.to_corner(DOWN+LEFT)
         for pi in creatures:
@@ -69,7 +69,7 @@ class DifferentConceptions(Scene):
 
     def intro_vector(self):
         plane = NumberPlane()
-        labels = VMobject(*plane.get_coordinate_labels())
+        labels = VGroup(*plane.get_coordinate_labels())
         vector = Vector(RIGHT+2*UP, color = YELLOW)
         coordinates = vector_coordinate_label(vector)
         symbol = TexMobject("\\vec{\\textbf{v}}")
@@ -108,7 +108,7 @@ class DifferentConceptions(Scene):
         brace = Brace(vector, DOWN)
         length = TextMobject("Length")
         length.next_to(brace, DOWN)
-        group = VMobject(vector, brace, length)
+        group = VGroup(vector, brace, length)
         group.rotate_in_place(np.pi/6)
         vector.get_center = lambda : vector.get_start()        
 
@@ -121,7 +121,7 @@ class DifferentConceptions(Scene):
         two_dimensional.to_corner(UP+RIGHT)
         three_dimensional.to_corner(UP+RIGHT)
 
-        random_vectors = VMobject(*[
+        random_vectors = VGroup(*[
             Vector(
                 random.uniform(-2, 2)*RIGHT + \
                 random.uniform(-2, 2)*UP
@@ -182,11 +182,12 @@ class DifferentConceptions(Scene):
         title = TextMobject("Vectors $\\Leftrightarrow$ lists of numbers")
         title.to_edge(UP)
 
-        vectors = VMobject(*list(map(matrix_to_mobject, [
+        vectors = VGroup(*list(map(matrix_to_mobject, [
             [2, 1],
             [5, 0, 0, -3],
             [2.3, -7.1, 0.1],
         ])))
+
         vectors.arrange(RIGHT, buff = 1)
         vectors.to_edge(LEFT)
 
@@ -223,13 +224,36 @@ class DifferentConceptions(Scene):
         price.next_to(price_words)
         price.set_color(GREEN)
 
-        vector = Matrix([square_footage.copy(), price.copy()])
+        # 使用VGroup替代MobjectMatrix
+        vector_elements = VGroup(square_footage.copy(), price.copy())
+        vector_elements.arrange(DOWN, buff=0.5)  # 垂直排列
+        
+        # 添加括号
+        l_bracket = TexMobject("\\big[")
+        r_bracket = TexMobject("\\big]")
+        l_bracket.scale(2)
+        r_bracket.scale(2)
+        
+        # 调整括号高度以匹配向量元素
+        bracket_height = vector_elements.get_height() + 0.5
+        l_bracket.stretch_to_fit_height(bracket_height)
+        r_bracket.stretch_to_fit_height(bracket_height)
+        
+        # 定位括号
+        l_bracket.next_to(vector_elements, LEFT, buff=0.1)
+        r_bracket.next_to(vector_elements, RIGHT, buff=0.1)
+        
+        # 创建完整的向量显示
+        vector = VGroup(l_bracket, vector_elements, r_bracket)
         vector.next_to(house, RIGHT).shift(0.25*UP)
-        new_square_footage, new_price = vector.get_mob_matrix().flatten()
+        
+        # 获取向量元素用于后续操作
+        new_square_footage, new_price = vector_elements.submobjects
+        
         not_equals = TexMobject("\\ne")
         not_equals.next_to(vector)
         alt_vector = Matrix([
-            TextMobject("300{,}000\\text{ ft}^2").set_color(RED),
+            TextMobject("300{,}000 ft$^2$").set_color(RED),
             TextMobject("\\$2{,}600").set_color(GREEN)
         ])
         alt_vector.next_to(not_equals)
@@ -237,7 +261,7 @@ class DifferentConceptions(Scene):
         brace = Brace(vector, RIGHT)
         two_dimensional = TextMobject("2 dimensional")
         two_dimensional.next_to(brace)
-        brackets = vector.get_brackets()
+        brackets = VGroup(l_bracket, r_bracket)  # 用于后续引用
 
         self.play(Transform(starter_mobject, house))
         self.remove(starter_mobject)
@@ -272,7 +296,7 @@ class DifferentConceptions(Scene):
         )
         self.wait()
 
-        everything = VMobject(
+        everything = VGroup(
             house, square_footage, price, brackets, brace, 
             two_dimensional, title
         )
@@ -292,14 +316,14 @@ class DifferentConceptions(Scene):
         w_arrow = Vector([2, 1])
         w_arrow.shift(v_arrow.get_end())
         sum_arrow = Vector(w_arrow.get_end())
-        arrows = VMobject(v_arrow, w_arrow, sum_arrow)
+        arrows = VGroup(v_arrow, w_arrow, sum_arrow)
         arrows.scale(0.7)
         arrows.to_edge(LEFT, buff = 2)
 
         v_array = matrix_to_mobject([3, -5])
         w_array = matrix_to_mobject([2, 1])
         sum_array = matrix_to_mobject(["3+2", "-5+1"])
-        arrays = VMobject(
+        arrays = VGroup(
             v_array, TexMobject("+"), w_array, TexMobject("="), sum_array
         )
         arrays.arrange(RIGHT)
@@ -308,7 +332,7 @@ class DifferentConceptions(Scene):
 
         v_sym = TexMobject("\\vec{\\textbf{v}}")
         w_sym = TexMobject("\\vec{\\textbf{w}}")
-        syms = VMobject(v_sym, TexMobject("+"), w_sym)
+        syms = VGroup(v_sym, TexMobject("+"), w_sym)
         syms.arrange(RIGHT)
         syms.center().shift(2*UP)
 
@@ -319,9 +343,9 @@ class DifferentConceptions(Scene):
         circle = Circle()
         circle.shift(syms.get_bottom())
 
-        VMobject(v_arrow, v_array, v_sym).set_color(v_color)
-        VMobject(w_arrow, w_array, w_sym).set_color(w_color)
-        VMobject(sum_arrow, sum_array).set_color(sum_color)
+        VGroup(v_arrow, v_array, v_sym).set_color(v_color)
+        VGroup(w_arrow, w_array, w_sym).set_color(w_color)
+        VGroup(sum_arrow, sum_array).set_color(sum_color)
 
         self.play(
             Write(syms), Write(arrays),
@@ -342,7 +366,7 @@ class DifferentConceptions(Scene):
 
 
     def add_scaling(self, arrows, syms, arrays):
-        s_arrows = VMobject(
+        s_arrows = VGroup(
             TexMobject("2"), Vector([1, 1]).set_color(YELLOW), 
             TexMobject("="), Vector([2, 2]).set_color(WHITE)
         )
@@ -350,7 +374,7 @@ class DifferentConceptions(Scene):
         s_arrows.scale(0.75)
         s_arrows.next_to(arrows, DOWN)
 
-        s_arrays = VMobject(
+        s_arrays = VGroup(
             TexMobject("2"), 
             matrix_to_mobject([3, -5]).set_color(YELLOW),
             TextMobject("="),
@@ -360,7 +384,7 @@ class DifferentConceptions(Scene):
         s_arrays.scale(0.75)
         s_arrays.next_to(arrays, DOWN)
 
-        s_syms = TexMobject(["2", "\\vec{\\textbf{v}}"])
+        s_syms = TexMobject("2", "\\vec{\\mathbf{v}}")
         s_syms.split()[-1].set_color(YELLOW)
         s_syms.next_to(syms, DOWN)
 
@@ -374,7 +398,7 @@ class DifferentConceptions(Scene):
 
     def fade_all_but(self, creatures, index):
         self.play(*[
-            FadeOut(VMobject(pi, pi.title))
+            FadeOut(VGroup(pi, pi.title))
             for pi in creatures[:index] + creatures[index+1:]
         ])
 
@@ -1242,7 +1266,7 @@ class NextVideo(Scene):
 
         self.add(title)
         self.play(ShowCreation(rect))
-        self.wait()    
+        self.wait()
 
 
 

readme.txt

@@ -82,7 +82,7 @@ np.array(matrix, dtype=str)
   # 这种改成这样
 
 
-chapters = VMobject(*list(map(TextMobject, [
+chapters = VGroup(*list(map(TextMobject, [
     "Chapter 1: Vectors, what even are they?",
     "Chapter 2: Linear combinations, span and bases",
     "Chapter 3: Matrices as linear transformations",
@@ -94,22 +94,21 @@ chapters = VMobject(*list(map(TextMobject, [
     "Chapter 9: Eigenvectors and eigenvalues",
     "Chapter 10: Abstract vector spaces",
 ])))
+  # 改成这样
+
 
-chapters = VGroup(*[
-    TextMobject("Chapter 1: Vectors, what even are they?"),
-    TextMobject("Chapter 2: Linear combinations, span and bases"),
-    TextMobject("Chapter 3: Matrices as linear transformations"),
-    TextMobject("Chapter 4: Matrix multiplication as composition"),
-    TextMobject("Chapter 5: The determinant"),
-    TextMobject("Chapter 6: Inverse matrices, column space and null space"),
-    TextMobject("Chapter 7: Dot products and cross products"),
-    TextMobject("Chapter 8: Change of basis"),
-    TextMobject("Chapter 9: Eigenvectors and eigenvalues"),
-    TextMobject("Chapter 10: Abstract vector spaces"),
-])
+vi old_projects\eola\chapter1.py
+# vector = Matrix([square_footage.copy(), price.copy()])
+vector = MobjectMatrix([square_footage.copy(), price.copy()])
   # 改成这样
 
 
+vi old_projects\eola\chapter1.py
+class DifferentConceptions(Scene):
+  # s_syms = TexMobject("2", "\\vec{\\textbf{v}}")
+  s_syms = TexMobject("2", "\\vec{\\mathbf{v}}")
+  # 改成这样
+
 
 assets/svg_images/video_icon.svg
   # 新建这个文件看看,第二个场景缺少文件