问题描述
我使用PIL工作时，我在图像上绘制了贝塞尔曲线，我想增加该曲线的厚度。 这是我的代码：
for image in images:
img = Image.open("/home/ec2-user/virtualenvs/axonator-production/axonator/media/app_data/ax_picture_20150831_213704.png").convert('RGBA')
for annotation in image["annotations"]:
xys = []
frame = annotation["frame"].split(",")
frame = [int(float(frame[0])),int(float(frame[1])),int(float(frame[2])),int(float(frame[3]))]
frame_location = (frame[0],frame[1])
frame_size = (5000 , 5000)
for point in annotation["path"]:
pt = point["points"].split(",")
xys.append((pt[0],pt[1]))
bezier = make_bezier(xys)
points = bezier(ts)
curve = Image.new('RGBA', frame_size)
import pdb; pdb.set_trace()
curve_draw = ImageDraw.Draw(curve)
curve_draw.polygon(points,outline="red")
curve_draw.text(points[0],str(order))
order = order + 1
img.paste(curve,frame_location,mask = curve)
img.save('out.png')
1楼
函数draw.polygon()不能像line()那样采用'width'参数。
除此之外， line()将采用一系列点并绘制折线。
线条结尾将是丑陋的，但通过在结尾处绘制圆圈，你可以使它们漂亮！
下面的代码绘制了一个美丽的厚红色多边形。
from PIL import Image, ImageDraw
points = (
(30, 40),
(120, 60),
(110, 90),
(20, 110),
(30, 40),
)
im = Image.new("RGB", (130, 120))
dr = ImageDraw.Draw(im)
dr.line(points, fill="red", width=9)
for point in points:
dr.ellipse((point[0] - 4, point[1] - 4, point[0] + 4, point[1] + 4), fill="red")
im.save("polygon.png")