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# 导入Manim核心库
from manim import *
# 导入Manim配置模块
import manim
class FittingObjects ( Scene ) :
def construct ( self ) :
# 坐标系放在左侧边缘
axes = Axes ( x_range = [ - 3 , 3 , 1 ] , y_range = [ - 3 , 3 , 1 ] , x_length = 6 , y_length = 6 )
# 坐标系距离左侧有0.5的缓冲距离
axes . to_edge ( LEFT , buff = 0.5 )
# 圆,线宽颜色,填充颜色和透明度
circle = Circle ( stroke_width = 6 , stroke_color = YELLOW , fill_color = RED , fill_opacity = 0.8 )
# 圆的宽度是2, 位置在右下角, 无缓冲距离
circle . set_width ( 2 ) . to_edge ( DR , buff = 0 )
# 创建三角形, 高度2位置右下3.3处
triangle = Triangle ( stroke_color = ORANGE , stroke_width = 10 , fill_color = GREY ) . set_height ( 2 ) . shift (
DOWN * 3 + RIGHT * 3 )
# 创建动画 画坐标系
self . play ( Write ( axes ) )
# 创建动画 画线然后填充圆
self . play ( DrawBorderThenFill ( circle ) )
# 形态动画 圆变化宽度
self . play ( circle . animate . set_width ( 1 ) )
# 转变动画 将圆向三角转变
self . play ( Transform ( circle , triangle ) , run_time = 3 )
# 当直接运行本脚本时执行以下代码
if __name__ == ' __main__ ' :
"""
配置渲染参数并执行场景渲染
等效命令行命令:
manim -pql -o custom_output 当前文件.py BoxAnimation
"""
# 配置字典说明:
config = {
" quality " : " low_quality " , # 渲染质量等级( low_quality对应480p)
" preview " : True , # 渲染完成后自动打开播放器
" input_file " : __file__ , # 指定输入文件为当前文件
" media_dir " : " ./custom_output " # 自定义输出目录( 默认在media/)
}
# 使用临时配置渲染场景( 配置只在with块内有效)
with manim . tempconfig ( config ) :
# 实例化场景类
scene = FittingObjects ( )
# 执行渲染流程(包含文件生成和预览)
scene . render ( )