用户:
yj皓月当空查看:0 回复:0 评论:0 创建时间:2020-07-12T13:12:20
【作品展示】

【作品介绍】
永动机
【作品源代码】
from vpython import helix, vector, color, sphere, box, rate, graph, gcurve
spring = helix(pos = vector(0, 2, 0),
axis = vector(0, -1, 0),
size = vector(2, 0.3, 0.3),
coils = 20
)
floor = box(pos = vector(0, 2, 0),
size = vector(1, 0.1, 1),
color = color.green
)
ball = sphere(pos = spring.pos + spring.axis,
radius = 0.2,
color = color.red,
v = vector(0, -1, 0)
)
graph(title="小球的速度", xtitle="时间", ytitle="速度") # 创建图表区域
v_curve = gcurve(color=color.red, label="小球速度") # 设定曲线的属性
i = 0
t = 0.01
f = 0.001
while i < 3000:
rate(100)
# 设置小球的速度
ball.v += (-ball.pos) * t - f*ball.v
# 移动小球
ball.pos += ball.v * t
spring.axis = ball.pos - spring.pos
# 绘图
v_curve.plot(i*t, ball.v.y)
i = i + 1
# print("位置:", spring.pos)
# print("方向:", spring.axis)
# print("大小:", spring.size)
# print("圈数:", spring.coils)
【提示】
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