dsProject/dsLightRag/Manim/L17_cubePrism.py

from manim import *

run_time = 0.8


class CubePrismExample(ThreeDScene):
    def construct(self):
        self.attr_example01()
        self.wait()
        self.clear()

        self.attr_example02()
        self.wait()
        self.clear()

        self.attr_example03()
        self.wait()
        self.clear()

        self.attr_example04()
        self.wait()

    def __add_title(self, title_str):
        title = Text(
            f"{title_str}：",
            font="STLiti",
            t2g={title_str: [RED, YELLOW, GREEN]},
            font_size=25,
        )
        line = Line(LEFT * 3, RIGHT * 5, color=BLUE).next_to(title, DOWN, buff=0.1)
        vg = VGroup(title, line)
        self.add_fixed_in_frame_mobjects(vg)
        vg.to_corner(UP)

    def attr_example01(self):
        """默认显示"""
        self.__add_title("东师理想数学AI助手")

        self.set_camera_orientation(phi=2 * PI / 5, theta=PI / 5)

        axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
        self.add(axes)

        # 创建一个立方体
        cube = Cube()
        self.play(Create(cube), run_time=run_time)
        self.wait()
        self.play(FadeOut(cube), run_time=0.5)
        # 创建一个棱柱
        prism = Prism()
        # 显示立方体和棱柱
        self.play(Create(prism), run_time=run_time)

    def attr_example02(self):
        """变换颜色"""
        self.__add_title("变换颜色")

        self.set_camera_orientation(PI / 3, -PI / 4)

        axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
        self.add(axes)

        # 创建一个立方体
        cube = Cube()
        self.play(Create(cube), run_time=run_time)
        cube2 = Cube(fill_color=RED)
        self.play(ReplacementTransform(cube, cube2), run_time=run_time)
        self.play(FadeOut(cube2), run_time=0.5)

        # 创建一个棱柱
        prism = Prism()
        self.play(Create(prism), run_time=run_time)
        prism2 = Prism(fill_color=GREEN)
        self.play(ReplacementTransform(prism, prism2), run_time=run_time)

    def attr_example03(self):
        """移动和旋转"""
        self.__add_title("移动和旋转")

        self.set_camera_orientation(PI / 3, -PI / 4)

        axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
        self.add(axes)
        # 创建一个立方体
        cube = Cube(fill_color=RED)
        # 创建一个棱柱
        prism = Prism(fill_color=GREEN)

        self.play(Create(cube), Create(prism))  # 显示立方体和棱柱
        self.wait()

        # 移动
        self.play(
            cube.animate.shift(RIGHT),
            prism.animate.shift(LEFT),
            run_time=run_time,
        )
        # 旋转
        self.play(
            cube.animate.rotate(PI / 4, axis=UP),
            prism.animate.rotate(-PI / 4, axis=UP),
            run_time=run_time,
        )

    def attr_example04(self):
        """组合使用"""
        self.__add_title("组合使用")

        self.set_camera_orientation(PI / 3, -PI / 4)

        axes = ThreeDAxes(x_length=8, y_length=6, z_length=5)
        self.add(axes)

        # 创建一个立方体
        cube = Cube(fill_color=RED).scale(0.8)
        # 创建一个棱柱
        prism = Prism(fill_color=GREEN).scale(0.8)
        # 将立方体放在棱柱的右边
        cube.next_to(prism, RIGHT, buff=0)

        # 组合使用
        vg = VGroup(cube, prism)
        self.play(Create(vg), run_time=run_time)
        self.wait()

        # 整体移动组合
        self.play(vg.animate.shift(UP), run_time=run_time)
        # 整体旋转组合
        self.play(vg.animate.rotate(PI / 2, axis=UP), run_time=run_time)

if __name__ == '__main__':
    config = {
        "quality": "high_quality",
        "preview": True,
        "media_dir": "./output",
        "pixel_height": 1080,
        "pixel_width": 1920,
        "background_color": "#1E1E1E"
    }

    with tempconfig(config):
        scene = CubePrismExample()
        scene.render()