from pathlib import Path
from PIL import Image, ImageDraw, ImageFont
out=Path(r'C:\projects\wheel\models\washer_two_panels')
im=Image.new('RGB',(1800,1000),'white');d=ImageDraw.Draw(im)
font='C:/Windows/Fonts/msyh.ttc'
F=lambda n:ImageFont.truetype(font,n)
d.text((55,35),'双板垫片：各 8 片',font=F(44),fill='#18283a')
d.text((55,105),'每块连续薄板 48 × 24 mm，按虚线裁成 4 × 2 片',font=F(27),fill='#40546d')
def panel(x,y,title,color):
    d.text((x,y-65),title,font=F(30),fill='#213b5a')
    cell=155; W=4*cell;H=2*cell
    d.rectangle((x,y,x+W,y+H),fill=color,outline='#22354b',width=3)
    for row in range(2):
        for col in range(4):
            cx=x+col*cell+cell/2; cy=y+(1-row)*cell+cell/2
            rr=cell*2.2/12
            # original notch is +x,+y: image y is downward, so upper-right
            d.ellipse((cx-rr,cy-rr,cx+rr,cy+rr),fill='white')
            d.rectangle((cx,cy-cell/2,cx+cell/2,cy),fill='white')
    for xx in range(1,4):
        pos=x+xx*cell
        for v in range(y,y+H,20): d.line((pos,v,pos,min(v+10,y+H)),fill='#476079',width=2)
    for u in range(x,x+W,20):d.line((u,y+cell,min(u+10,x+W),y+cell),fill='#476079',width=2)
panel(65,260,'0.5 mm 厚 × 8 片','#c9d9e9')
panel(975,260,'1 mm 厚 × 8 片','#a7c5e5')
d.text((65,650),'两块均为一个连续实体；每片中心孔 Ø4.4 mm，保留 90° 缺口。',font=F(28),fill='#253c54')
d.text((65,710),'虚线仅用于说明，STL 无预制割线；裁切后缺口通向外侧。',font=F(28),fill='#253c54')
d.text((65,770),'先按厚度分别标记，裁切时注意刀口宽度及孔口完整。',font=F(28),fill='#253c54')
d.text((65,850),'0.5 mm 薄板能否成型、平整以及订单分类由打印商确认。',font=F(26),fill='#ae3428')
im.save(out/'两块连续板_裁切示意.png')