Python Wand bezier()用法及代码示例

bezier()函数是Python Wand ImageMagick库中的内置函数，用于从指定点绘制贝塞尔曲线。

 用法：

bezier(points)

参数：该函数接受上面提到并在下面定义的单个参数：

points:此参数用于指定点的值。它是List-type，用于声明点数组。

返回值：此函数返回Wand ImageMagick对象。

范例1：

# Import libraries from the wand   
from wand.image import Image 
from wand.drawing import Drawing 
from wand.color import Color 
  
with Drawing() as draw:
    # Set Stroke color the circle to black 
    draw.stroke_color = Color('black') 
    # Set Width of the circlw to 2  
    draw.stroke_width = 1
    # Set the fill color to 'White (# FFFFFF)' 
    draw.fill_color = Color('white') 
    # Set the bezier points as (x, y) 
    points = [(40, 200), # Start point 
    (120, 110), # First control 
    (190, 180), # Second control 
    (210, 360), # Third control 
    (240, 240), # Fourth control  
    (370, 140)] # End point 
  
    # Set the font style 
    draw.font = '../Helvetica.ttf'
    # Set the font size  
    draw.font_size = 30
      
    with Image(width = 400, height = 400, background = Color('# 45ff33')) as pic:
        # Set the text and its location 
        draw.text(int(pic.width / 3), int(pic.height / 8), 'GFG-BezierCurve') 
        # Invoke bezier function with declared points 
        draw.bezier(points) 
        # Draw the picture 
        draw(pic) 
        # Save the image  
        pic.save(filename ='bezier1.jpg')

输出：

相关用法

注：本文由纯净天空筛选整理自sarthak_ishu11大神的英文原创作品 Wand bezier() function – Python。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。