本文实例讲述了python以环状形式组合排列图片并输出的方法。分享给大家供大家参考。具体分析如下：

这段代码可以自定义一个空白画板，然后将指定的图片以圆环状的方式排列起来，用到了pil库，可以通过：
pip install pil 的方式安装。

具体代码如下：

复制代码 代码如下:

-- coding: utf-8 --

author = 'www.jb51.net'
import math
from PIL import Image
def arrangeImagesInCircle(masterImage, imagesToArrange):
imgWidth, imgHeight = masterImage.size

we want the circle to be as large as possible.

#but the circle shouldn't extend all the way to the edge of the image.  
#If we do that, then when we paste images onto the circle, those images will partially fall over the edge.  
#so we reduce the diameter of the circle by the width/height of the widest/tallest image.  
diameter = min(  
    imgWidth  \- max(img.size[0] for img in imagesToArrange),  
    imgHeight - max(img.size[1] for img in imagesToArrange)  
)  
radius = diameter / 2  
circleCenterX = imgWidth  / 2  
circleCenterY = imgHeight / 2  
theta = 2*math.pi / len(imagesToArrange)  
for i in range(len(imagesToArrange)):  
    curImg = imagesToArrange[i]  
    angle = i * theta  
    dx = int(radius * math.cos(angle))  
    dy = int(radius * math.sin(angle))  
    #dx and dy give the coordinates of where the center of our images would go.  
    #so we must subtract half the height/width of the image to find where their top-left corners should be.  
    pos = (  
        circleCenterX + dx - curImg.size[0]/2,  
        circleCenterY + dy - curImg.size[1]/2  
    )  
    masterImage.paste(curImg, pos)  

img = Image.new("RGB", (500,500), (255,255,255))

下面的三个图片是3个 50x50 的pngs 图片，使用了绝对路径，需要自己进行替换成你的图片路径

imageFilenames = ["d:/www.jb51.net/images/1.png", "d:/www.jb51.net/images/2.png", "d:/www.jb51.net/images/3.png"] * 5
images = [Image.open(filename) for filename in imageFilenames]
arrangeImagesInCircle(img, images)
img.save("output.png")

希望本文所述对大家的Python程序设计有所帮助。