示例#1
0
    def construct(self):
        words = TextMobject([
            "One does not simply define the limit \\\\ \
            of a sequence of", "curves", "\\dots"
        ])
        top_words = TextMobject(["curves", "are functions"]).to_edge(UP)
        curves1 = words.split()[1]
        curves2 = top_words.split()[0]
        words.ingest_submobjects()
        number = TexMobject("0.27")
        pair = TexMobject("(0.53, 0.02)")
        pair.next_to(number, buff=2)
        arrow = Arrow(number, pair)
        Mobject(number, arrow, pair).center().shift(UP)
        number_line = UnitInterval()
        number_line.stretch_to_fit_width(5)
        number_line.to_edge(LEFT).shift(DOWN)
        grid = Grid(4, 4).scale(0.4)
        grid.next_to(number_line, buff=2)
        low_arrow = Arrow(number_line, grid)

        self.play(ShimmerIn(words))
        self.dither()
        self.play(FadeOut(words), ApplyMethod(curves1.replace, curves2),
                  ShimmerIn(top_words.split()[1]))
        self.dither()
        self.play(FadeIn(number))
        self.play(ShowCreation(arrow))
        self.play(FadeIn(pair))
        self.dither()
        self.play(ShowCreation(number_line))
        self.play(ShowCreation(low_arrow))
        self.play(ShowCreation(grid))
        self.dither()
示例#2
0
    def construct(self):
        snells = TextMobject("Snell's")
        snells.shift(-snells.get_left())
        snells.to_edge(UP)
        for vect in [RIGHT, RIGHT, LEFT, DOWN, DOWN, DOWN]:
            snells.add(snells.copy().next_to(snells, vect))
        snells.ingest_submobjects()
        snells.show()
        condensed = TextMobject("condensed")

        self.add(snells)
        self.dither()
        self.play(DelayByOrder(Transform(snells, condensed, run_time=2)))
        self.dither()
示例#3
0
    def construct(self):
        snells = TextMobject("Snell's")
        snells.shift(-snells.get_left())
        snells.to_edge(UP)
        for vect in [RIGHT, RIGHT, LEFT, DOWN, DOWN, DOWN]:
            snells.add(snells.copy().next_to(snells, vect))
        snells.ingest_submobjects()
        snells.show()
        condensed = TextMobject("condensed")

        self.add(snells)
        self.dither()
        self.play(DelayByOrder(
            Transform(snells, condensed, run_time = 2)
        ))
        self.dither()