[ERROR] [1680608340.620559540]: "turtle1" passed to lookupTransform argument source_frame does not exist.
时间: 2024-06-06 20:11:07 浏览: 9
This error message is indicating that the specified source frame, "turtle1", does not exist in the transformation tree. The transformation tree is a data structure that maintains the relationship between different coordinate frames in a robotic system.
In this case, it is likely that the "turtle1" frame has not been properly defined or initialized in the system. To resolve this error, you should check that the "turtle1" frame is correctly defined and published in the system. You may also need to check that the frame is spelled correctly and that there are no typos or other errors in the code.
相关问题
28. 使用 turtle 库函数绘制4个等距排列的正方形,边长为40像素,间距宽度为40。最左边的正方形左上角坐标为(0,0)。 import turtle n = __(1)__ for j in range(n): turtle. __(2)__ for i in range(4): turtle. __(3)__ turtle.right(__(4)__) turtle.penup() turtle.fd(__(5)__) turtle.done()
import turtle
n = 4
for j in range(n):
turtle.penup()
turtle.goto(j*80, 0)
turtle.pendown()
for i in range(4):
turtle.fd(40)
turtle.right(90)
turtle.penup()
turtle.fd(40)
turtle.done()
import turtle turtle.speed(1) for _ in range(4): turtle.circle(30,-50) turtle.circle(30,-50) turtle.done()
import turtle是Python中的一个库,它提供了一个绘制图形的简单而有趣的方式。在你提供的代码中,使用了turtle库来绘制一个图形。
首先,通过`turtle.speed(1)`设置绘制速度为1,表示较慢的速度。
然后,使用`for _ in range(4):`循环4次,表示要绘制4个圆。
在循环内部,使用`turtle.circle(30, -50)`绘制一个半径为30的圆弧,-50表示绘制的角度为逆时针方向的50度。
最后,使用`turtle.done()`表示绘制完成,保持窗口不关闭。
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