标签：play scale paraffins self get conformation Transform font manim

%%manim -v WARNING -qh s1
                                                                                                                                                                                                                                                                                                                                
class s1(Scene):
    def construct(self):
        t1 = Text("链烷烃的构象", font="STZhongsong")
        self.play(DrawBorderThenFill(t1))
        self.play(FadeOut(t1))
        pro1 = Text("由于单键可以“自由”旋转", font="STZhongsong").scale(0.8).to_edge(DOWN)
        pro2 = Text("使分子中的原子或基团在空间产生不同的排列", font="STZhongsong").scale(0.8).to_edge(DOWN)
        pro3 = Text("这样产生的异构体称为构象异构体", font="STZhongsong").scale(0.8).to_edge(DOWN)
        g = SVGMobject(r"D:\manimSVG\dwjj.svg").scale(2)
        self.play(DrawBorderThenFill(pro1), Write(g))
        self.play(Succession(Transform(pro1,pro2), Wait(2), Transform(pro1,pro3)), Wait(2), Succession(
            Rotate(g[-9:-1], angle = 120*DEGREES,  about_point = g[-1].get_corner(UR), rate_func=rate_functions.smooth, run_time=2),
            Rotate(g[0:8], angle = -120*DEGREES, about_point = g[-1].get_corner(DL), rate_func=rate_functions.smooth, run_time=2),
            Rotate(g[-9:-1], angle = 270*DEGREES,  about_point = g[-1].get_corner(UR), rate_func=rate_functions.smooth, run_time=2),
        ))
        self.play(FadeOut(pro1, g))

%%manim -v WARNING -qh s2
                                                                                                                                                                                                                                                                                                                                
class s2(Scene):
    def construct(self):
        t1 = Text("乙烷", font="STZhongsong")
        t2 = Text("丙烷", font="STZhongsong")
        t3 = Text("丁烷", font="STZhongsong")
        t4 = Text("乙烷衍生物", font="STZhongsong")
        vg = VGroup(t1,t2,t3,t4).arrange(DOWN, buff=1)
        # 注意安排位置时考虑好顺序
        a1 = MathTex("C_2H_6").scale(0.7).next_to(t1, DOWN)
        a2 = MathTex("C_3H_8").scale(0.7).next_to(t2, DOWN)
        a3 = MathTex("C_4H_{10}").scale(0.7).next_to(t3, DOWN)
        vgall = VGroup(vg,a1,a2,a3)
        self.play(DrawBorderThenFill(vgall))
        self.wait(1)
        vgtmp = VGroup(t2,t3,t4,a2,a3)
        self.play(FadeOut(vgtmp))
        ethyl = MathTex("CH_3CH_3")
        vgt = VGroup(t1,a1)
        vgtcopy = vgt.copy()
        self.play(Transform(vgt, ethyl))
        s0 = SVGMobject(r"D:\manimSVG\ywjj.svg").scale(1.5)
        s0[6:12].rotate(angle = 180*DEGREES, about_point = s0[-1].get_corner(UR))
        s12 = SVGMobject(r"D:\manimSVG\yws1.svg").scale(0.8)
        s22 = SVGMobject(r"D:\manimSVG\ywnm1.svg").scale(1.2)
        s11 = SVGMobject(r"D:\manimSVG\yws2.svg").scale(0.8)
        s21 = SVGMobject(r"D:\manimSVG\ywnm2.svg").scale(1.2)
        s22copy = s21.copy().shift(4*RIGHT)
        s21copy = s22.copy().shift(4*RIGHT)
        vg1 = VGroup(s11, s0, s21).arrange(RIGHT, buff=2)
        vg2 = VGroup(s12, s0, s22).arrange(RIGHT, buff=2)
        s00 = s0.copy()
        s000 = s0.copy()
        w1 = Text("锯架式", font="STZhongsong").scale(0.5).next_to(s0, DOWN)
        w2 = Text("伞形式", font="STZhongsong").scale(0.5).next_to(s11, DOWN).set_y(w1.get_y())
        w3 = Text("Newman式", font="STZhongsong").scale(0.5).next_to(s21, DOWN).set_y(w1.get_y())
        typ2 = Text("重叠型", font="STZhongsong").to_edge(DOWN)
        typ1 = Text("交叉型", font="STZhongsong").to_edge(DOWN)
        self.wait(1)
        self.play(Transform(vgt, s0))
        self.play(Write(w1))
        self.play(Write(typ1))
        self.wait(1)
        self.play(Transform(s00, s11))
        self.play(Write(w2))
        self.wait(1)
        self.play(Transform(s000, s21))
        self.play(Write(w3))
        self.wait(1)
        self.play(Rotate(vgt[6:12], angle = 60*DEGREES, about_point = vgt[-1].get_corner(UR), rate_func=rate_functions.smooth))
        self.wait(1)
        self.play(Transform(typ1,typ2))
        self.play(Transform(s00, s12))
        self.wait(1)
        self.play(Transform(s000, s22))
        self.wait(1)
        vgg = VGroup(vgt,s000,w1,w2,w3,typ1)
        self.play(FadeOut(vgg))
        self.play(s00.animate.move_to(np.array([0,0,0])))
        self.play(s00.animate.scale(1.5))
        # 势能曲线
        doublearr = DoubleArrow(start=s00[7].get_center() + 0.2*RIGHT, end=s00[9].get_center() + 0.2*LEFT)
        self.add(s00)
        self.play(GrowFromPoint(doublearr, doublearr.get_center()))
        index = MathTex("229pm").next_to(doublearr, UP, buff=0)
        self.play(GrowFromPoint(index, index.get_center()))
        t1 = Text("在重叠性构象中", font="STZhongsong").scale(0.6).to_edge(DOWN)
        t2 = Text("两个氢原子之间的距离约为229pm，而氢原子的范德华半径约为120pm", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(DrawBorderThenFill(t1))
        self.play(Transform(t1,t2))
        cir1 = Circle(radius=1.85, color=WHITE).move_to(s00[7].get_center())
        cir2 = Circle(radius=1.85, color=WHITE).move_to(s00[9].get_center())
        self.play(Write(cir1), Write(cir2))
        arr1 = DoubleArrow(start=s00[7].get_center() + 0.05*UP, end=cir1.get_center() + 2*UP)
        arr2 = DoubleArrow(start=s00[9].get_center() + 0.05*UP, end=cir2.get_center() + 2*UP)
        index1 = MathTex("120pm").next_to(arr1, RIGHT, buff=0).scale(0.8).shift(0.2*LEFT)
        index2 = MathTex("120pm").next_to(arr2, RIGHT, buff=0).scale(0.8).shift(0.2*LEFT)
        self.play(GrowFromPoint(arr1, arr1.get_center()), GrowFromPoint(arr2, arr2.get_center()))
        self.play(GrowFromPoint(index1, index1.get_center()), GrowFromPoint(index2, index2.get_center()))
        t2 = Text("120pm+120pm>229pm，因此有排斥力", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(Transform(t1,t2))
        self.wait(1.5)
        t3 = Text("此时从能量上考虑是不稳定的", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(Transform(t1,t3))
        vv = VGroup(cir1,cir2,index1,index2,doublearr,index,arr1,arr2)
        self.play(FadeOut(vv))
        self.play(s00.animate.scale(0.7))
        self.play(s00.animate.shift(4*RIGHT))
        ax = Axes(
            x_range=[0, 130, 60],
            y_range=[0, 14, 12.1],
            x_length=0.8*PI,
            y_length=1,
            axis_config = {"include_tip": False}
        ).add_coordinates(font_size=20)
        labels = ax.get_axis_labels(
            x_label=Text("旋转角度/(°)", font="STZhongsong").scale(0.25), y_label=Text("势能/(kJ/mol)", font="STZhongsong").scale(0.25)
        )
        graph = ax.plot(lambda x : 12.1*np.cos(PI/60*x), x_range = [0,120], color = BLUE)
        vgfunc = VGroup(ax,labels,graph).scale(2).shift(2.7*LEFT + UP)
        self.play(Write(vgfunc[0:2]))
        self.play(Write(vgfunc[-1]))
        self.play(Transform(s00, s21copy))
        self.play(s00.animate.scale(0.5))
        point = ax.c2p(120, 12.1)
        dot = Dot(point)
        self.play(GrowFromPoint(dot, dot.get_center()), s00.animate.move_to(dot.get_center() + 0.8*UP), rate_func=rate_functions.smooth)
        self.wait(1)
        t4 = Text("而在交叉型构象中，两个氢核之间的距离约为250pm", font="STZhongsong").scale(0.6).to_edge(DOWN)
        t5 = Text("从能量上看，这种构象是最稳定的", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(Transform(t1,t4), FadeIn(s22copy))
        self.wait(1.5)
        self.play(Transform(t1,t5))
        self.play(s22copy.animate.scale(0.5))
        point1 = ax.c2p(60, -12.1)
        dot1 = Dot(point1)
        self.play(GrowFromPoint(dot1, dot1.get_center()), s22copy.animate.move_to(dot1.get_center() + 0.8*DOWN), rate_func=rate_functions.smooth)
        self.play(FadeOut(t1))
        vgvg = VGroup(vgfunc, dot, dot1, s00, s22copy)
        self.play(vgvg.animate.move_to(np.array([0,-0.5,0])))
        title = Text("乙烷各种构象的势能关系图", font="STZhongsong").scale(0.8).next_to(vgvg, UP)
        self.play(DrawBorderThenFill(title))
        self.wait(1)
        vggall = VGroup(vgvg, title)
        self.play(Transform(vggall, vgtcopy))
        self.play(FadeIn(vgtmp))
        self.wait(3)

%%manim -v WARNING -qh s3
                                                                                                                                                                                                                                                                                                                                
class s3(Scene):
    def construct(self):
        li11 = Text("乙烷", font="STZhongsong")
        li21 = Text("丙烷", font="STZhongsong")
        li31 = Text("丁烷", font="STZhongsong")
        li4 = Text("乙烷衍生物", font="STZhongsong")
        vgli = VGroup(li11,li21,li31,li4).arrange(DOWN, buff=1)
        # 注意安排位置时考虑好顺序
        li12 = MathTex("C_2H_6").scale(0.7).next_to(li11, DOWN)
        li22 = MathTex("C_3H_8").scale(0.7).next_to(li21, DOWN)
        li32 = MathTex("C_4H_{10}").scale(0.7).next_to(li31, DOWN)
        vgfadeout = VGroup(li11,li12,li31,li32,li4)
        li2 = VGroup(li21,li22)
        li2copy = li2.copy()
        vgallli = VGroup(li11,li12,li21,li22,li31,li32,li4)
        self.add(vgallli)
        self.wait(2)
        self.play(FadeOut(vgfadeout))
        li2transmol = MathTex("CH_3CH_2CH_3")
        self.play(Transform(li2,li2transmol))
        self.wait(1)
        propsaw = SVGMobject(r"D:\manimSVG\prop_saw.svg").scale(1.5)
        propubl = propsaw.copy()
        propnm = propsaw.copy()
        propumbrella1 = SVGMobject(r"D:\manimSVG\prop_umbrella1.svg").scale(0.8)
        propumbrella2 = SVGMobject(r"D:\manimSVG\prop_umbrella2.svg").scale(0.8)
        propnewman1 = SVGMobject(r"D:\manimSVG\prop_newman1.svg").scale(1.2)
        propnewman2 = SVGMobject(r"D:\manimSVG\prop_newman2.svg").scale(1.2)
        vgprop1 = VGroup(propumbrella1, propsaw, propnewman1).arrange(RIGHT, buff=2)
        vgprop2 = VGroup(propumbrella2, propsaw, propnewman2).arrange(RIGHT, buff=2)
        notesaw = Text("锯架式", font="STZhongsong").scale(0.5).next_to(propsaw, DOWN)
        noteubl= Text("伞形式", font="STZhongsong").scale(0.5).next_to(propumbrella1, DOWN).set_y(notesaw.get_y())
        notenm = Text("Newman式", font="STZhongsong").scale(0.5).next_to(propnewman1, DOWN).set_y(notesaw.get_y())
        type1 = Text("交叉型", font="STZhongsong").to_edge(DOWN)
        type2 = Text("重叠型", font="STZhongsong").to_edge(DOWN)
        self.play(Transform(li2, propsaw))
        self.play(Write(notesaw))
        self.play(Write(type1))
        self.wait(1)
        self.play(Transform(propubl, propumbrella1))
        self.play(Write(noteubl))
        self.wait(1)
        self.play(Transform(propnm, propnewman1))
        self.play(Write(notenm))
        self.wait(1)
        self.play(Rotate(li2[8:14], angle = 60*DEGREES, about_point=li2[-1].get_corner(UR), rate_func=rate_functions.smooth))
        self.wait(1)
        self.play(Transform(type1, type2))
        self.wait(1)
        self.play(Transform(propubl, propumbrella2))
        self.wait(1)
        self.play(Transform(propnm, propnewman2))
        self.wait(1)
        vg_fadeout2 = VGroup(type1, li2, notesaw, noteubl, notenm, propubl)
        self.play(FadeOut(vg_fadeout2))
        propnmpos = propnm.copy()
        vgpropnm = VGroup(propnewman1, propnmpos).move_to(np.array([0,0,0])).arrange(RIGHT, buff=3)
        self.play(propnm.animate.move_to(propnmpos.get_center()))
        propnm2 = propnm.copy()
        self.play(Transform(propnm2, propnewman1))
        narra = Text("和乙烷类似，重叠型构象不稳定", font="STZhongsong").scale(0.6).to_edge(DOWN)
        narra2 = Text("它和交叉型构象的势能差为13.3kJ/mol", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.wait(1)
        self.play(DrawBorderThenFill(narra))
        self.play(Transform(narra, narra2))
        ax = Axes(
            x_range=[0, 130, 60],
            y_range=[0, 15, 13.3],
            x_length=0.8*PI,
            y_length=1,
            axis_config = {"include_tip": False}
        ).add_coordinates(font_size=10)
        labels = ax.get_axis_labels(
            x_label=Text("旋转角度/(°)", font="STZhongsong").scale(0.15), y_label=Text("势能/(kJ/mol)", font="STZhongsong").scale(0.15)
        )
        graph = ax.plot(lambda x : 6.65*np.cos(PI/60*x) + 6.65, x_range = [0,120], color = BLUE)
        vgax = VGroup(ax,labels,graph).scale(3).shift(0.6*DOWN)
        point1 = ax.c2p(60, 0)
        dot1 = Dot(point1)
        point2 = ax.c2p(120, 13.3)
        dot2 = Dot(point2)
        self.play(propnm2.animate.scale(0.8), propnm.animate.scale(0.8))
        self.play(propnm2.animate.move_to(dot1.get_center() + 1.2*UP), propnm.animate.move_to(dot2.get_center() + UP), rate_func=rate_functions.smooth)
        self.wait(1)
        self.play(Write(vgax[0:2]))
        self.play(Write(vgax[-1]))
        self.play(GrowFromPoint(dot1, dot1.get_center()), GrowFromPoint(dot2, dot2.get_center()))
        self.wait(1.5)
        self.play(FadeOut(narra))
        vgback = VGroup(vgax, dot1, dot2, propnm, propnm2)
        self.play(Transform(vgback, li2copy))
        self.play(FadeIn(vgfadeout))
        self.wait(1)

%%manim -v WARNING -qh s4
                                                                                                                                                                                                                                                                                                                                
class s4(Scene):
    def construct(self):
        li11 = Text("乙烷", font="STZhongsong")
        li21 = Text("丙烷", font="STZhongsong")
        li31 = Text("丁烷", font="STZhongsong")
        li4 = Text("乙烷衍生物", font="STZhongsong")
        vgli = VGroup(li11,li21,li31,li4).arrange(DOWN, buff=1)
        # 注意安排位置时考虑好顺序
        li12 = MathTex("C_2H_6").scale(0.7).next_to(li11, DOWN)
        li22 = MathTex("C_3H_8").scale(0.7).next_to(li21, DOWN)
        li32 = MathTex("C_4H_{10}").scale(0.7).next_to(li31, DOWN)
        vgfadeout = VGroup(li11,li12,li21,li22,li4)
        li3 = VGroup(li31,li32)
        li3copy = li3.copy()
        vgallli = VGroup(li11,li12,li21,li22,li31,li32,li4)
        self.add(vgallli)
        self.wait(2)
        self.play(FadeOut(vgfadeout))
        li3transmol = MathTex("CH_3CH_2CH_2CH_3")
        self.play(Transform(li3,li3transmol))
        self.wait(1)
        butsaw = SVGMobject(r"D:\manimSVG\butsaw.svg").scale(1.5)
        butubl = butsaw.copy()
        butnm = butsaw.copy()
        butumbrella1 = SVGMobject(r"D:\manimSVG\butumbrella1.svg").scale(0.8)
        butumbrella2 = SVGMobject(r"D:\manimSVG\butumbrella2.svg").scale(0.8)
        butumbrella3 = SVGMobject(r"D:\manimSVG\butumbrella3.svg").scale(0.8)
        butumbrella4 = SVGMobject(r"D:\manimSVG\butumbrella4.svg").scale(0.8)
        butnewman1 = SVGMobject(r"D:\manimSVG\butnewman1.svg").scale(1.2)
        butnewman2 = SVGMobject(r"D:\manimSVG\butnewman2.svg").scale(1.2)
        butnewman3 = SVGMobject(r"D:\manimSVG\butnewman3.svg").scale(1.2)
        butnewman4 = SVGMobject(r"D:\manimSVG\butnewman4.svg").scale(1.2)
        butnmpos1 = SVGMobject(r"D:\manimSVG\butnewman1.svg").scale(1.2)
        butnmpos2 = SVGMobject(r"D:\manimSVG\butnewman2.svg").scale(1.2)
        butnmpos3 = SVGMobject(r"D:\manimSVG\butnewman3.svg").scale(1.2)
        butnmpos4 = SVGMobject(r"D:\manimSVG\butnewman4.svg").scale(1.2)
        vgbut1 = VGroup(butumbrella1, butsaw, butnewman1).arrange(RIGHT, buff=2)
        vgbut2 = VGroup(butumbrella2, butsaw, butnewman2).arrange(RIGHT, buff=2)
        vgbut3 = VGroup(butumbrella3, butsaw, butnewman3).arrange(RIGHT, buff=2)
        vgbut4 = VGroup(butumbrella4, butsaw, butnewman4).arrange(RIGHT, buff=2)
        notesaw = Text("锯架式", font="STZhongsong").scale(0.5).next_to(butsaw, DOWN)
        noteubl= Text("伞形式", font="STZhongsong").scale(0.5).next_to(butumbrella1, DOWN).set_y(notesaw.get_y())
        notenm = Text("Newman式", font="STZhongsong").scale(0.5).next_to(butnewman1, DOWN).set_y(notesaw.get_y())
        type1 = Text("对交叉型", font="STZhongsong").to_edge(DOWN)
        type2 = Text("部分重叠型", font="STZhongsong").to_edge(DOWN)
        type3 = Text("邻交叉型", font="STZhongsong").to_edge(DOWN)
        type4 = Text("全重叠型", font="STZhongsong").to_edge(DOWN)
        self.play(Transform(li3, butsaw))
        self.play(Write(notesaw))
        self.play(Write(type1))
        self.wait(1)
        self.play(Transform(butubl, butumbrella1))
        self.play(Write(noteubl))
        self.wait(1)
        self.play(Transform(butnm, butnewman1))
        self.play(Write(notenm))
        self.wait(1)
        # 改变构型
        self.play(Rotate(li3[8:16], angle = 60*DEGREES, about_point=li3[-1].get_corner(UR), rate_func=rate_functions.smooth))
        self.wait(1)
        self.play(Transform(type1, type2))
        self.wait(1)
        self.play(Transform(butubl, butumbrella2))
        self.wait(1)
        self.play(Transform(butnm, butnewman2))
        self.wait(1)
        self.play(Rotate(li3[8:16], angle = 60*DEGREES, about_point=li3[-1].get_corner(UR), rate_func=rate_functions.smooth))
        self.wait(1)
        self.play(Transform(type1, type3))
        self.wait(1)
        self.play(Transform(butubl, butumbrella3))
        self.wait(1)
        self.play(Transform(butnm, butnewman3))
        self.wait(1)
        self.play(Rotate(li3[8:16], angle = 60*DEGREES, about_point=li3[-1].get_corner(UR), rate_func=rate_functions.smooth))
        self.wait(1)
        self.play(Transform(type1, type4))
        self.wait(1)
        self.play(Transform(butubl, butumbrella4))
        self.wait(1)
        self.play(Transform(butnm, butnewman4))
        self.wait(1)
        # 画函数图像前准备
        vg_fadeout2 = VGroup(type1, li3, notesaw, noteubl, notenm, butubl)
        self.play(FadeOut(vg_fadeout2))
        butnmpos = butnm.copy()
        vgbutnm = VGroup(butnewman1, butnewman2, butnewman3, butnmpos).move_to(np.array([0,0,0])).arrange(RIGHT, buff=1)
        self.play(butnm.animate.move_to(butnmpos.get_center()))
        butnm2 = butnm.copy()
        butnm3 = butnm.copy()
        butnm4 = butnm.copy()
        self.play(Transform(butnm2, butnewman1))
        self.play(Transform(butnm3, butnewman2))
        self.play(Transform(butnm4, butnewman3))
        self.wait(1)
        narra = Text("同样的，全重叠型的能量最高，对交叉型的能量最低", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(DrawBorderThenFill(narra))
        ax = Axes(
            x_range=[0, 200, 60],
            y_range=[0, 40, 40],
            x_length=0.8*PI,
            y_length=1,
            axis_config = {"include_tip": False}
        ).add_coordinates(font_size=10)
        labels = ax.get_axis_labels(
            x_label=Text("旋转角度/(°)", font="STZhongsong").scale(0.15), y_label=Text("势能/(kJ/mol)", font="STZhongsong").scale(0.15)
        )
        graph1 = ax.plot(lambda x : -7.3*np.cos(PI/60*x) + 7.3, x_range = [0,60], color = BLUE)
        graph2 = ax.plot(lambda x : -5.4*np.cos(PI/60*x) + 9.2, x_range = [60,120], color = BLUE)
        graph3 = ax.plot(lambda x : -9.4*np.cos(PI/60*x) + 13.2, x_range = [120,180], color = BLUE)
        vgax = VGroup(ax,labels,graph1,graph2,graph3).scale(3.5)
        
        point1 = ax.c2p(0, 0)
        dot1 = Dot(point1)
        point2 = ax.c2p(60, 14.6)
        dot2 = Dot(point2)
        point3 = ax.c2p(120, 3.8)
        dot3 = Dot(point3)
        point4 = ax.c2p(180, 22.6)
        dot4 = Dot(point4)
        self.play(butnm2.animate.scale(0.6), butnm3.animate.scale(0.6), butnm4.animate.scale(0.6), butnm.animate.scale(0.6))
        self.play(butnm2.animate.move_to(dot1.get_center() + 0.8*UP), butnm3.animate.move_to(dot2.get_center() + 0.7*UP), butnm4.animate.move_to(dot3.get_center() + 0.8*UP), butnm.animate.move_to(dot4.get_center() + 0.7*UP), rate_func=rate_functions.smooth)
        self.play(Write(vgax[0:2]))
        self.play(Write(vgax[2:]))
        self.play(GrowFromPoint(dot1, dot1.get_center()), GrowFromPoint(dot2, dot2.get_center()), GrowFromPoint(dot3, dot3.get_center()), GrowFromPoint(dot4, dot4.get_center()))
        self.wait(1.5)
        self.play(FadeOut(narra))
        vgback = VGroup(vgax, dot1, dot2, dot3, dot4, butnm, butnm2, butnm3, butnm4)
        self.play(vgback.animate.shift(0.5*DOWN))
        title = Text("正丁烷各种构象的势能关系图", font="STZhongsong").scale(0.8).next_to(vgax, UP).shift(LEFT)
        self.play(DrawBorderThenFill(title))
        self.wait(1)
        vgaxfadeout = VGroup(ax,labels)
        self.play(FadeOut(vgaxfadeout), FadeOut(title))
        vgaxremain = VGroup(graph1,graph2,graph3,dot1,dot2,dot3,dot4,butnm2,butnm3,butnm4,butnm)
        self.play(vgaxremain.animate.move_to(np.array([0,0,0])))
        self.play(vgaxremain.animate.scale(1.4))
        baseline = DashedLine(start=dot1.get_center() + 0.05*DOWN, end=np.array([dot4.get_x(),dot1.get_y(),0]))
        self.play(Write(baseline))
        arr1 = DoubleArrow(start=np.array([dot2.get_x(),dot2.get_y(),0]), end=np.array([dot2.get_x(),dot1.get_y(),0]), buff=0, tip_length=0.2, color=GREEN)
        arr2 = DoubleArrow(start=np.array([dot3.get_x(),dot3.get_y(),0]), end=np.array([dot3.get_x(),dot1.get_y(),0]), buff=0, tip_length=0.2, color=GREEN)
        arr3 = DoubleArrow(start=np.array([dot4.get_x(),dot4.get_y(),0]), end=np.array([dot4.get_x(),dot1.get_y(),0]), buff=0, tip_length=0.2, color=GREEN)
        self.play(GrowFromPoint(arr1,arr1.get_center()), GrowFromPoint(arr2,arr2.get_center()), GrowFromPoint(arr3,arr3.get_center()))
        diff1 = MathTex("3.8kJ/mol").next_to(arr2, 0.05*LEFT).scale(0.6).shift(0.4*RIGHT)
        diff2 = MathTex("14.6kJ/mol").next_to(arr1, 0.05*LEFT).scale(0.6).shift(0.45*RIGHT)
        diff3 = MathTex("22.6kJ/mol").next_to(arr3, 0.05*LEFT).scale(0.6).shift(0.45*RIGHT)
        self.play(DrawBorderThenFill(diff1), DrawBorderThenFill(diff2), DrawBorderThenFill(diff3))
        self.wait(1.5)
        vgback2 = VGroup(vgaxremain, baseline, arr1, arr2, arr3, diff1, diff2, diff3)
        clddot1 = Dot(radius=0.1732,color=RED).to_corner(DL).shift(UP+RIGHT)
        clddot2 = Dot(radius=0.1732,color=BLUE).to_corner(UR).shift(DOWN+LEFT)
        vgclddot = VGroup(clddot1,clddot2)
        narra2 = Text("在室温下，分子间的碰撞足以", font="STZhongsong").scale(0.6).to_edge(DOWN)
        narra3 = Text("提供构象异构体之间相互转化的能量", font="STZhongsong").scale(0.6).to_edge(DOWN)
        narra4 = Text("因此这些构象异构体可以互相转化而不能分离", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(Transform(vgback2, vgclddot), DrawBorderThenFill(narra2))
        self.add(vgclddot)
        self.remove(vgback2)
        self.wait(1)
        self.play(clddot1.animate.move_to(np.array([-0.1732,-0.1,0])), clddot2.animate.move_to(np.array([0,0.2,0])), Transform(narra2,narra3), rate_func = rush_into)           
        self.play(clddot1.animate.move_to(np.array([0,-3,0])), clddot2.animate.move_to(np.array([1.5,2.5981,0])), rate_func = rush_from)
        self.wait(1)
        vgback2 = VGroup(clddot1,clddot2)
        self.play(Transform(narra2, narra4), Transform(vgback2, butnmpos1))
        self.play(Transform(vgback2,butnmpos2), run_time=0.2)
        self.play(Transform(vgback2,butnmpos3), run_time=0.2)
        self.play(Transform(vgback2,butnmpos4), run_time=0.2)
        self.play(Transform(vgback2,butnmpos1), run_time=0.2)
        self.play(Transform(vgback2,butnmpos2), run_time=0.2)
        self.play(Transform(vgback2,butnmpos3), run_time=0.2)
        self.play(Transform(vgback2,butnmpos4), run_time=0.2)
        self.play(Transform(vgback2,butnmpos1), run_time=0.3)
        self.play(Transform(vgback2,butnmpos2), run_time=0.4)
        self.play(Transform(vgback2,butnmpos3), run_time=0.5)
        self.play(Transform(vgback2,butnmpos4), run_time=0.6)
        self.play(Transform(vgback2,butnmpos1), run_time=0.7, rate_func = rush_from)
        self.play(FadeOut(narra2))
        butnmpos3flip = SVGMobject(r"D:\manimSVG\butnewman3flip.svg").scale(1.2)
        vgback2pos = vgback2.copy()
        vgbutper = VGroup(butnmpos3flip, vgback2pos, butnmpos3).arrange(RIGHT, 1.5)
        vgback3 = vgback2.copy()
        vgback4 = vgback2.copy()
        self.play(Transform(vgback3, butnmpos3flip))
        self.play(Transform(vgback4, butnmpos3))
        per2 = Text("约70%", font="STZhongsong").scale(0.5).next_to(vgback2, DOWN)
        per1 = Text("约15%", font="STZhongsong").scale(0.5).next_to(vgback3, DOWN).set_y(per2.get_y())
        per3 = Text("约15%", font="STZhongsong").scale(0.5).next_to(vgback4, DOWN).set_y(per2.get_y())
        notation = Text("正丁烷的构象分布", font="STZhongsong").scale(0.8).to_edge(UP)
        self.play(Write(per1))
        self.play(Write(per2))
        self.play(Write(per3))
        self.play(DrawBorderThenFill(notation))
        self.wait(1)
        vgbackfinal = VGroup(vgback2,vgback3,vgback4,per1,per2,per3,notation)
        self.play(Transform(vgbackfinal, li3copy))
        self.play(FadeIn(vgfadeout))
        self.wait(1)

%%manim -v WARNING -qh s5
                                                                                                                                                                                                                                                                                                                                
class s5(Scene):
    def construct(self):
        mol1 = MathTex("CH_2ClCH_2Cl").scale(0.7)
        mol2 = MathTex("CH_2BrCH_2Br").scale(0.7)
        mol3 = MathTex("C_6H_5CH_2CH_2C_6H_5").scale(0.7)
        vgmol = VGroup(mol1,mol2,mol3).arrange(RIGHT,1.5).set_y(2)
        li11 = Text("乙烷", font="STZhongsong")
        li21 = Text("丙烷", font="STZhongsong")
        li31 = Text("丁烷", font="STZhongsong")
        li4 = Text("乙烷衍生物", font="STZhongsong")
        vgli = VGroup(li11,li21,li31,li4).arrange(DOWN, buff=1)
        # 注意安排位置时考虑好顺序
        li12 = MathTex("C_2H_6").scale(0.7).next_to(li11, DOWN)
        li22 = MathTex("C_3H_8").scale(0.7).next_to(li21, DOWN)
        li32 = MathTex("C_4H_{10}").scale(0.7).next_to(li31, DOWN)
        vgfadeout = VGroup(li11,li12,li21,li22,li31,li32)
        li4copy = li4.copy()
        vgallli = VGroup(li11,li12,li21,li22,li31,li32,li4)
        self.add(vgallli)
        self.wait(2)
        self.play(FadeOut(vgfadeout))
        self.play(Transform(li4,vgmol))
        self.add(vgmol)
        self.remove(li4)
        nm1 = SVGMobject(r"D:\manimSVG\doublecl.svg").scale(1.2).set_x(mol1.get_x())
        nm2 = SVGMobject(r"D:\manimSVG\doublebr.svg").scale(1.2).set_x(mol2.get_x())
        nm3 = SVGMobject(r"D:\manimSVG\doubleben.svg").scale(1.2).set_x(mol3.get_x())
        nmhydro11 = SVGMobject(r"D:\manimSVG\doublealco1.svg").scale(1.8).shift(3*LEFT)
        nmhydro12 = SVGMobject(r"D:\manimSVG\doublealco2.svg").scale(1.8).shift(3*LEFT)
        nmhydro13 = SVGMobject(r"D:\manimSVG\doublealco3.svg").scale(1.8).shift(3*LEFT)
        nmhydro21 = SVGMobject(r"D:\manimSVG\clandalco1.svg").scale(1.8).shift(3*RIGHT)
        nmhydro22 = SVGMobject(r"D:\manimSVG\clandalco2.svg").scale(1.8).shift(3*RIGHT)
        nmhydro23 = SVGMobject(r"D:\manimSVG\clandalco3.svg").scale(1.8).shift(3*RIGHT)
        note1 = Text("约70%", font="STZhongsong").scale(0.5).set_x(mol1.get_x()).set_y(-2)
        note2 = Text("约85%", font="STZhongsong").scale(0.5).set_x(mol2.get_x()).set_y(-2)
        note3 = Text("约90%以上", font="STZhongsong").scale(0.5).set_x(mol3.get_x()).set_y(-2)
        mol1copy = mol1.copy()
        mol2copy = mol2.copy()
        mol3copy = mol3.copy()
        vgnm = VGroup(nm1,nm2,nm3)
        vgnote = VGroup(note1,note2,note3)
        t1 = Text("大多数有机分子都以交叉型构象为主要的存在形式", font="STZhongsong").scale(0.6).to_edge(DOWN)
        t2 = Text("比如：", font="STZhongsong").scale(0.6).to_edge(DOWN)
        t3 = Text("但在乙二醇和2-氯乙醇分子中", font="STZhongsong").scale(0.6).to_edge(DOWN)
        t4 = Text("由于邻交叉构象可以形成分子内氢键而降低能量", font="STZhongsong").scale(0.6).to_edge(DOWN)
        t5 = Text("所以主要以邻交叉构象形式存在", font="STZhongsong").scale(0.6).to_edge(DOWN)
        self.play(DrawBorderThenFill(t1))
        self.play(Transform(t1,t2))
        self.play(Transform(mol1copy, nm1))
        self.play(Write(note1))
        self.play(Transform(mol2copy, nm2))
        self.play(Write(note2))
        self.play(Transform(mol3copy, nm3))
        self.play(Write(note3))
        vgfadeout2 = VGroup(vgmol,mol1copy,mol2copy,mol3copy,vgnote)
        self.play(FadeOut(vgfadeout2))
        self.play(Transform(t1,t3), GrowFromPoint(nmhydro11, nmhydro11.get_center()), GrowFromPoint(nmhydro21, nmhydro21.get_center()))
        self.wait(1.5)
        self.play(Transform(t1,t4),Transform(nmhydro11,nmhydro12), Transform(nmhydro21,nmhydro22))
        self.wait(1)
        self.play(Transform(t1,t4),Transform(nmhydro11,nmhydro13),Transform(nmhydro21,nmhydro23))
        self.wait(1)
        self.play(Transform(t1,t5))
        self.wait(2)
        vgback = VGroup(t1,nmhydro11,nmhydro21)
        self.play(Transform(vgback,li4copy))
        self.play(FadeIn(vgfadeout))
        self.wait(1)
        vgfinalfadeout = VGroup(vgback,vgfadeout)
        self.play(FadeOut(vgfinalfadeout))

标签：play,scale,paraffins,self,get,conformation,Transform,font,manim
来源： https://www.cnblogs.com/daxiangcai/p/16441757.html

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