Python中的魔杖圆（）函数

circle()函数是 Wand 中的另一个绘图函数。此方法用于在图像中绘制一个圆圈。它只需要两个参数，即圆的原点和周长。

Syntax: wand.drawing.circle(origin, perimeter)

Parameters :

Parameter	Input Type	Description
origin	(collections.abc.Sequence)or(Real, numbers.Real)	pair which represents origin x and y of circle.
perimeter	(collections.abc.Sequence)or(Real, numbers.Real)	pair which represents perimeter x and y of circle

示例 #1：

# Import required objects from wand modules
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
  
# generate object for wand.drawing
with Drawing() as draw:
  
    # set stroke color
    draw.stroke_color = Color('black')
  
    # set width for stroke
    draw.stroke_width = 1
  
    # fill white color in arc
    draw.fill_color = Color('white')
    origin = (100, 100)
    perimeter = (50, 50)
  
    # draw circle using circle() function
    draw.circle(origin, perimeter) 
    with Image(width = 200,
               height = 200,
               background = Color('green')) as img:
  
        # draw shape on image using draw() function
        draw.draw(img)
        img.save(filename ='circle.png')

输出：

示例 #2：
输入图像：

# Import required objects from wand modules
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
  
# generate object for wand.drawing
with Drawing() as draw:
    origin = (100, 100)
    perimeter = (50, 50)
  
    # set stroke color
    draw.stroke_color = Color('black')
  
    # set width for stroke
    draw.stroke_width = 1
  
    # fill white color in arc
    draw.fill_color = Color('white')
  
    # draw bezier curve using bezier function
    draw.circle(origin, perimeter)
    with Image(filename ="gog.png") as img:
  
        # draw shape on image using draw() function
        draw.draw(img)
        img.save(filename ='circle2.png')

输出：