双箭头

限定名称: manim.mobject.geometry.line.DoubleArrow

class DoubleArrow(*args, **kwargs)

基础类：Arrow

两端都有箭头的箭头。

Parameters:

• args – 传递给 Arrow 的参数

• kwargs – 传递给Arrow的额外参数

另请参阅

ArrowTip CurvedDoubleArrow

示例

示例：DoubleArrowExample

from manim import *

from manim.mobject.geometry.tips import ArrowCircleFilledTip
class DoubleArrowExample(Scene):
    def construct(self):
        circle = Circle(radius=2.0)
        d_arrow = DoubleArrow(start=circle.get_left(), end=circle.get_right())
        d_arrow_2 = DoubleArrow(tip_shape_end=ArrowCircleFilledTip, tip_shape_start=ArrowCircleFilledTip)
        group = Group(Group(circle, d_arrow), d_arrow_2).arrange(UP, buff=1)
        self.add(group)

from manim.mobject.geometry.tips import ArrowCircleFilledTip
class DoubleArrowExample(Scene):
    def construct(self):
        circle = Circle(radius=2.0)
        d_arrow = DoubleArrow(start=circle.get_left(), end=circle.get_right())
        d_arrow_2 = DoubleArrow(tip_shape_end=ArrowCircleFilledTip, tip_shape_start=ArrowCircleFilledTip)
        group = Group(Group(circle, d_arrow), d_arrow_2).arrange(UP, buff=1)
        self.add(group)

示例：DoubleArrowExample2

from manim import *

class DoubleArrowExample2(Scene):
    def construct(self):
        box = Square()
        p1 = box.get_left()
        p2 = box.get_right()
        d1 = DoubleArrow(p1, p2, buff=0)
        d2 = DoubleArrow(p1, p2, buff=0, tip_length=0.2, color=YELLOW)
        d3 = DoubleArrow(p1, p2, buff=0, tip_length=0.4, color=BLUE)
        Group(d1, d2, d3).arrange(DOWN)
        self.add(box, d1, d2, d3)

class DoubleArrowExample2(Scene):
    def construct(self):
        box = Square()
        p1 = box.get_left()
        p2 = box.get_right()
        d1 = DoubleArrow(p1, p2, buff=0)
        d2 = DoubleArrow(p1, p2, buff=0, tip_length=0.2, color=YELLOW)
        d3 = DoubleArrow(p1, p2, buff=0, tip_length=0.4, color=BLUE)
        Group(d1, d2, d3).arrange(DOWN)
        self.add(box, d1, d2, d3)

方法

属性

animate	用于动画化self的任何方法的应用。
animation_overrides
color
depth	mobject的深度。
fill_color	如果有多种颜色（用于渐变），则返回第一个颜色
height	mobject的高度。
n_points_per_curve
sheen_factor
stroke_color
width	mobject的宽度。

_original__init__(*args, **kwargs)

初始化自身。有关准确的签名，请参阅 help(type(self))。

Return type:

无