Python中的魔杖绘图（）函数

wand 的另一个模块是 wand.drawing。该模块为我们提供了一些非常基本的绘图功能。 wand.drawing.Drawing 对象缓冲用于将形状绘制成图像的指令，然后它可以将这些形状绘制成零个或多个图像。

Syntax : with Drawing() as draw:

Note: In the above syntax “as draw” is just a nomenclature and can be any string as needed. The Drawing function in Python wand take has no parameter.

示例 #1：

# Import important objects from wand library
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
  
# Create draw object using Drawing() function
with Drawing() as draw:
    with Image(width = 200,
               height = 200,
               background = Color('green')) as img:
        draw(img)
        img.save(filename ='empty.gif')

输出图像：

让我们画一条线

示例 #2：

# Import important objects from wand library
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
  
# Create draw object using Drawing() function
with Drawing() as draw:
    draw.stroke_color = Color('black')
    draw.stroke_width = 2
    draw.line((5, 5), (45, 50))
    with Image(width = 200,
               height = 200,
               background = Color('green')) as img:
        draw.draw(img)
        img.save(filename ='line.gif')

输出图像：