Python3 PIL（枕頭）draw.pieslice壞弧

Question

我dawing簡單pieslice與PIL

image = Image.new("RGBA", (256, 128), "#DDD") 
draw = ImageDraw.Draw(image, image.mode) 
draw.pieslice((0, 0 , 64, 64), 180, 270, fill="white) 

del draw 

image.save("file.png", "PNG") 

正如你可以看到弧線是不完美的。如何用PIL製作完美的弧線？

Answer 1

畫一個更大的圖像，然後按比例縮小：

N=4 
image = Image.new("RGBA", (256*N, 128*N), "#DDD") 
draw = ImageDraw.Draw(image, image.mode) 
draw.pieslice((0, 0 , 64*N, 64*N), 180, 270, fill="white") 
del draw 
image = image.resize((256,128)) # using user3479125's correction 
image.save("file2.png", "PNG") 

Answer 2

注意事項unutbu的回答是： 現在調整大小（）返回圖像的尺寸調整後的副本。所以它不會修改原文。所以這應該是：

N=4 
image = Image.new("RGBA", (256*N, 128*N), "#DDD") 
draw = ImageDraw.Draw(image, image.mode) 
draw.pieslice((0, 0 , 64*N, 64*N), 180, 270, fill="white") 
del draw 
image = image.resize((256,128)) 
image.save("file2.png", "PNG")