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from manim import *
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run_time = 0.8
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class CubePrismExample(ThreeDScene):
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def construct(self):
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self.attr_example01()
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self.wait()
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self.clear()
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self.attr_example02()
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self.wait()
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self.clear()
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self.attr_example03()
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self.wait()
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self.clear()
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self.attr_example04()
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self.wait()
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def __add_title(self, title_str):
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title = Text(
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f"{title_str}：",
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font="STLiti",
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t2g={title_str: [RED, YELLOW, GREEN]},
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font_size=25,
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)
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line = Line(LEFT * 3, RIGHT * 5, color=BLUE).next_to(title, DOWN, buff=0.1)
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vg = VGroup(title, line)
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self.add_fixed_in_frame_mobjects(vg)
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vg.to_corner(UP)
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def attr_example01(self):
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"""默认显示"""
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self.__add_title("东师理想数学AI助手")
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self.set_camera_orientation(phi=2 * PI / 5, theta=PI / 5)
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axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
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self.add(axes)
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# 创建一个立方体
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cube = Cube()
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self.play(Create(cube), run_time=run_time)
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self.wait()
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self.play(FadeOut(cube), run_time=0.5)
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# 创建一个棱柱
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prism = Prism()
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# 显示立方体和棱柱
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self.play(Create(prism), run_time=run_time)
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def attr_example02(self):
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"""变换颜色"""
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self.__add_title("变换颜色")
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self.set_camera_orientation(PI / 3, -PI / 4)
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axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
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self.add(axes)
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# 创建一个立方体
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cube = Cube()
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self.play(Create(cube), run_time=run_time)
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cube2 = Cube(fill_color=RED)
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self.play(ReplacementTransform(cube, cube2), run_time=run_time)
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self.play(FadeOut(cube2), run_time=0.5)
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# 创建一个棱柱
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prism = Prism()
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self.play(Create(prism), run_time=run_time)
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prism2 = Prism(fill_color=GREEN)
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self.play(ReplacementTransform(prism, prism2), run_time=run_time)
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def attr_example03(self):
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"""移动和旋转"""
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self.__add_title("移动和旋转")
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self.set_camera_orientation(PI / 3, -PI / 4)
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axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
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self.add(axes)
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# 创建一个立方体
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cube = Cube(fill_color=RED)
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# 创建一个棱柱
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prism = Prism(fill_color=GREEN)
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self.play(Create(cube), Create(prism)) # 显示立方体和棱柱
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self.wait()
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# 移动
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self.play(
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cube.animate.shift(RIGHT),
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prism.animate.shift(LEFT),
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run_time=run_time,
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)
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# 旋转
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self.play(
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cube.animate.rotate(PI / 4, axis=UP),
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prism.animate.rotate(-PI / 4, axis=UP),
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run_time=run_time,
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)
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def attr_example04(self):
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"""组合使用"""
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self.__add_title("组合使用")
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self.set_camera_orientation(PI / 3, -PI / 4)
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axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
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self.add(axes)
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# 创建一个立方体
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cube = Cube(fill_color=RED).scale(0.8)
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# 创建一个棱柱
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prism = Prism(fill_color=GREEN).scale(0.8)
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# 将立方体放在棱柱的右边
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cube.next_to(prism, RIGHT, buff=0)
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# 组合使用
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vg = VGroup(cube, prism)
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self.play(Create(vg), run_time=run_time)
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self.wait()
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# 整体移动组合
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self.play(vg.animate.shift(UP), run_time=run_time)
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# 整体旋转组合
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self.play(vg.animate.rotate(PI / 2, axis=UP), run_time=run_time)
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if __name__ == '__main__':
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config = {
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"quality": "high_quality",
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"preview": True,
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"media_dir": "./output",
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"pixel_height": 1080,
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"pixel_width": 1920,
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"background_color": "#1E1E1E"
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}
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with tempconfig(config):
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scene = CubePrismExample()
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scene.render()
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