[006]Example: Coordinate Methods

Example 1

class CoordinateEx1(Scene):
    def construct(self):
        #1. create objects
        title = self.get_title()
        body = self.get_body()
        subtitle = self.get_subtitle()

        #2. locate objects
        title.move_to(ORIGIN).to_edge(UP, buff=1)
        body.next_to(title, DOWN, buff=1)
        subtitle.to_edge(DOWN, buff=0.5)

        #3. animate objects
        self.play(FadeIn(title), run_time=2)
        self.play(FadeIn(body), run_time=2)
        self.play(FadeIn(subtitle), run_time=2)
        self.wait(2)

    def get_text(self, str, color=WHITE, size=0.4):
        return Text(str, font='굴림', stroke_width=1, color=color, size=size)

    def get_title(self):
        t1 = self.get_text("IMF 국제통화기금", color=BLUE, size=0.4 )
        t2 = self.get_text("2020 세계 경제 전망", color=WHITE, size=0.6)

        t2.next_to(t1, RIGHT, buff=0.3)
        text = VGroup(t1, t2)

        underline = Line(LEFT, RIGHT, color = GREY).set_width(text.get_width())
        underline.next_to(text, DOWN, buff=0.1)

        return VGroup(text, underline)

    def get_body(self):
        t1 = self.get_text("세계", color=WHITE, size=1)
        t2 = self.get_text("-3%", color=RED, size=1.4)

        t2.next_to(t1, RIGHT, buff=0.8)
        return VGroup(t1, t2)
    
    def get_subtitle(self):
        rect1 = Rectangle(width=FRAME_WIDTH-1.5, height=0.4, fill_opacity=1, fill_color=BLUE, stroke_width=0)
        t1 = self.get_text("쿠오모", color=WHITE, size=0.3)
        t2 = self.get_text("뉴욕주지사", color=WHITE, size=0.2)
        t2.next_to(t1, RIGHT, buff=0.2)
        up_text = VGroup(t1,t2).move_to(rect1, LEFT).shift(RIGHT*0.1)
        rect1.add(up_text)

        rect2 = Rectangle(width=FRAME_WIDTH-1.5, height=0.8, fill_opacity=1, fill_color=WHITE, stroke_width=0)
        t3 = self.get_text("세계 경제 전망이 ...,", color=BLUE_E, size=0.3)
        t4 = self.get_text("물품 구매도 각 주가 책임져야...", color=BLUE_E, size=0.3)
        t4.next_to(t3, DOWN, aligned_edge=LEFT, buff=0.1)
        down_text = VGroup(t3,t4).move_to(rect2, LEFT).shift(RIGHT*0.1)
        rect2.add(down_text)

        rect2.next_to(rect1, DOWN, buff=0)
        return VGroup(rect1, rect2)

 

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Example 2

class CoordinateEx2(Scene):
    def construct(self):
        dot = Dot()

        dot.to_edge(LEFT)
        self.add(dot)
        self.wait()

        for i in range(0,5):
            self.move_dot(dot)

    def move_dot(self, dot):
        d1 = dot.copy()
        d2 = dot.copy()
        d3 = dot.copy()

        self.play(
            d1.to_corner, UR,
            d2.to_edge, RIGHT,
            d3.to_corner, DR,
        )
        self.remove(d1, d2, d3)