31 lines
1.2 KiB
Python
31 lines
1.2 KiB
Python
import manim
|
||
from manim import *
|
||
# pip install manim-physics
|
||
# https://manim-physics.readthedocs.io/en/latest/reference/manim_physics.electromagnetism.magnetostatics.MagneticField.html
|
||
from manim_physics import *
|
||
|
||
class MagneticFieldExample(ThreeDScene):
|
||
def construct(self):
|
||
wire = Wire(Circle(2).rotate(PI / 2, UP))
|
||
mag_field = MagneticField(
|
||
wire,
|
||
x_range=[-4, 4],
|
||
y_range=[-4, 4],
|
||
)
|
||
self.set_camera_orientation(PI / 3, PI / 4)
|
||
self.add(wire, mag_field)
|
||
|
||
if __name__ == '__main__':
|
||
# 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 = MagneticFieldExample()
|
||
# 执行渲染流程（包含文件生成和预览）
|
||
scene.render() |