“`python import turtle def draw_circle(): turtle.circle(100) draw_circle() turtle.done() “` 通过引入turtle库,我们可以使用circle()函数来绘制圆形。circle()函数的参数是半径,这里设定为100。调用draw_circle()函数,即可在屏幕上显示一个半径为100的圆形。 2. 使用matplotlib库绘制圆形 matplotlib是Pytho...
“`python import matplotlib.pyplot as plt def draw_circle(): center = (0, 0) # 圆心坐标 radius = 1 # 圆的半径 circle = plt.Circle(center, radius, fill=False) # 创建一个圆形对象 fig, ax = plt.subplots() ax.add_patch(circle) # 将圆形添加到图形中 ax.set_aspect(‘equal’) # 设...
defdrawCircle(x,y,c='red'): p.pu()# 抬起画笔 p.goto(x,y)# 绘制圆的起始位置 p.pd()# 放下画笔 p.color(c)# 绘制c色圆环 p.circle(30,360)#绘制圆:半径,角度 p.pensize(3)# 画笔尺寸设置3 drawCircle(0,0,'blue') drawCircle(60,0,'black') drawCircle(120,0,'red') drawCircle(...
phi0)l=options.l# degree of VSHm=options.m# order of VSHN_phi=12# arrows in phi directionN_theta=12# arrows in theta direction# create a new sphereproj=Sphere(R,theta0,phi0)# draw the horizonproj.draw_circle()# draw aequator, longitude...
简单一个例子: 效果: 代码: import pygame from pygame.locals import * def DrawCircle(screen): BLUE = (0, 0, 255) position = 300,250 radius = 100 width = 10 pygame.draw.circle( screen, BLUE, positio…
(Salary, colors=colors, labels=Employee, autopct='%1.1f%%', pctdistance=0.85, explode=explode)# draw circlecentre_circle = plt.Circle((0, 0), 0.70, fc='white')fig = plt.gcf()# Adding Circle in Pie chartfig.gca().add_artist(centre_circle)# Adding Ti...
使用函数draw.set_color 将circle_perimeter_aa 结果应用于彩色图像。 参考: 1 X. Wu, “An efficient antialiasing technique”, In ACM SIGGRAPH Computer Graphics, 25 (1991) 143-152. 例子: >>> from skimage.draw import circle_perimeter_aa >>> img = np.zeros((10, 10), dtype=np.uint8) >...
def draw_circle(size, angle, shift):turtle.pencolor(next(colors)) turtle.circle(size) turtle.right(angle) turtle.forward(shift) draw_circle(size + 5, angle + 1, shift + 1)再来运行程序，看看效果 四、查看完整代码 现在我们输入上述分析的代码，看看程序运行出来的效果吧 import turtle...
cv.setMouseCallback('image', draw_circle) # 进入无限循环,持续显示图像 while(1): #在'image'窗口中显示当前的img图像 cv.imshow('image', img) # 等待用户按键,若等待20ms后检测到有按键按下,则返回按键的ASCII码 # 如果按下的键是Esc键(ASCII码为27),则退出循环 ...
先从整体来看pygame.draw有哪些函数: pygame.draw.rect: 绘制矩形 pygame.draw.polygon: 绘制任意边数的多边形 pygame.draw.circle: 绘制圆 pygame.draw.ellipse: 在矩形内绘制椭圆 pygame.draw.arc: 绘制圆弧(或者椭圆的一部分) pygame.draw.line: 绘制直线(线段) ...