pygame.draw.ellipse(surface, color, bounding_rectangle, width) - 此函数绘制椭圆(类似于被挤压或拉伸的圆)。此函数具有所有常规参数,但为了告诉函数如何绘制椭圆的大小和位置,必须指定椭圆的边界矩形。边界矩形是可以绘制在形状周围的最小矩形。以下是椭圆及其边界矩形的示例: bounding_rectan
400), 0, 32)pygame.display.set_caption('Drawing')# set up the colorsBLACK = ( 0, 0, 0)WHITE = (255, 255, 255)RED = (255, 0, 0)GREEN = ( 0, 255, 0)BLUE = ( 0, 0, 255)# draw on the surface objectDISPLAYSURF.fill(WHITE)pygame.draw...
>>> from skimage.draw import ellipse_perimeter >>> img = np.zeros((10, 10), dtype=np.uint8) >>> rr, cc = ellipse_perimeter(5, 5, 3, 4) >>> img[rr, cc] = 1 >>> img array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0], ...
问Python模块wx.GraphicsContext中的函数DrawEllipse只能在Windows中使用，而不能在Linux中使用ENNuclear ...
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pygame.draw.circle(screen,color,(circle_x,circle_y),12) elif angle%3==1: pygame.draw.rect(screen,color,(circle_x-10,circle_y-10,20,20)) elif angle%3==2: pygame.draw.ellipse(screen,color,(circle_x-15,circle_y-10,30,20)) ...
本示例,主要使用cv.ellipse在图像上绘制/标记椭圆形符号。cv.ellipse语法img = cv.ellipse( img, center, axes, angle, startAngle, endAngle, color[, thickness[, lineType[, shift]]] ) or img = cv.ellipse( img, box, color[, thickness[, lineType]] )...
>>> draw = ImageDraw.Draw(im) >>> draw.line([(0, 0), (199, 0), (199, 199), (0, 199), (0, 0)], fill='black') # ➊ >>> draw.rectangle((20, 30, 60, 60), fill='blue') # ➋ >>> draw.ellipse((120, 30, 160, 60), fill='red') # ➌ ...
image = cv2.ellipse(image, center_coordinates, axesLength, angle, startAngle, endAngle, color, thickness) # Displaying the image cv2.imshow(window_name, image) 输出如下: 示例2: 使用-1 px的厚度和30度的旋转。 # Python program to explain cv2.ellipse() method ...
ellipse 绘制椭圆 举个例子,让我们使用circle方法并观察pygame绘图模块的运行情况。我们需要知道半径的值才能画一个圆。半径是从圆的中心到圆的边缘的距离,也就是圆的弧长。调用圆函数时应传递的参数是屏幕,代表表面对象;圆的颜色;圆应该被绘制的位置;最后是圆的半径。由于我们使用随机模块生成圆的半径的随机值,而不...