As first input, the circle function receives the image on which we want to draw the circle. As second, it receives a tuple with the x and y coordinates of the center of the circle. As third argument, we need to pass the radius of the circle and as fourth, we need to specify anothe...
import turtle turtle.home() print(turtle.position()) print(turtle.heading()) turtle.circle(50) ## 半径为50的圆 print(turtle.position()) ## 画圆 后 乌龟回到原位 print(turtle.heading()) turtle.circle(120, 180) ## 半径为 120, 逆时针绘制1/4圆弧 print(turtle.position()) print(turtle.he...
Drawing Preset FiguresSuppose you want to draw a circle. If you attempt to draw it in the same way as you drew the square, then it would be extremely tedious, and you’d have to spend a lot of time just for that one shape. Thankfully, the Python turtle library provides a solution ...
"sketches" and are run as any other Python program. The sketch above, for instance, draws a circle at the mouse location that gets a random reddish color when the mouse is pressed and is white otherwise; the size of the circle is chosen randomly. The Python code for the sketch looks ...
Try to sleep on it or make a drawing of the program flow. Note: The @timer decorator is great if you just want to get an idea about the runtime of your functions. If you want to do more precise measurements of code, then you should instead consider the timeit module in the standard...
class implements a window where drawing can be done and various GraphicsObjects are provided that can be drawn into a GraphWin. As a simple example, here is a complete program to draw a circle of radius 10 centered in a 100x100 window: ...
while True: # main game loop for event in pygame.event.get(): 第8 行是一个for循环,它将遍历由pygame.event.get()返回的 Event 对象列表。在每次循环中,一个名为event的变量将被赋予该列表中下一个事件对象的值。从pygame.event.get()返回的 Event 对象列表将按事件发生的顺序排列。如果用户先点击鼠标...
就像我们使用pygame.draw.circle函数创建圆形一样,我们可以使用pygame.draw.polygon来绘制任何类型的多边形。对多边形函数的调用以点列表的形式作为参数,并将使用这些点绘制多边形形状。我们可以使用类似的方式使用特定的称谓绘制不同的几何形状。 在接下来的部分中,我们将学习使用pygame模块初始化显示屏和处理键盘和鼠标事件...
circle_on_circle.py modified: circle_on_circle.py Mar 7, 2015 circle_on_sphere.py modified: 2d_surface.py Jun 9, 2024 circling_triangle.py modified: 2d_surface.py Jun 9, 2024 closing_opening_circle.py modified: aperiodic_sine.py Jan 6, 2014 ...
#Draw a geometry for the scenedefDraw():#translation (moving) about 6 unit into the screen and 1.5 unit to leftglTranslatef(-1.5,0.0,-6.0) glBegin(GL_TRIANGLES)#GL_TRIANGLE is constant for TRIANGLESglVertex3f(0.0,1.0,0.0)#first vertexglVertex3f(-1.0, -1.0,0.0)#second vertexglVertex3f...