from PIL import Image, ImageDraw, ImageFont
from pathlib import Path
import math
O=Path(r'C:\projects\wheel\models\washer_panel_4x4')
im=Image.new('RGB',(1680,1100),'white');d=ImageDraw.Draw(im)
font=r'C:\Windows\Fonts\msyh.ttc'
F=lambda s:ImageFont.truetype(font,s)
d.text((60,38),'一体式 4×4 双厚度垫片',font=F(43),fill='#1c2938')
d.text((60,106),'48 × 48 mm 薄板；沿虚线裁切，分成 16 片',font=F(25),fill='#405367')
ox,oy,unit=100,190,17
side=48*unit; cell=12*unit
# Project y-positive to screen up: rows 1–2 thin at the bottom in drawing.
d.rectangle((ox,oy,ox+side,oy+side),fill='#a5c4e8')
d.rectangle((ox,oy+side/2,ox+side,oy+side),fill='#cfdbed')
for row in range(4):
 for col in range(4):
  cx=ox+(12*col+6)*unit; cy=oy+side-(12*row+6)*unit; r=2.2*unit
  # NE quadrant and bore removed; neighboring cells remain connected around them.
  d.rectangle((cx,cy-6*unit,cx+6*unit,cy),fill='white')
  d.ellipse((cx-r,cy-r,cx+r,cy+r),fill='white')
for i in range(1,4):
 x=ox+i*cell; y=oy+i*cell
 for a in range(0,side,20):
  d.line((x,oy+a,x,oy+min(a+10,side)),fill='#5a6070',width=2)
  d.line((ox+a,y,ox+min(a+10,side),y),fill='#5a6070',width=2)
d.rectangle((ox,oy,ox+side,oy+side),outline='#172a40',width=4)
d.text((980,205),'1 mm 厚 × 8 片',font=F(29),fill='#214e82')
d.text((980,600),'0.5 mm 厚 × 8 片',font=F(29),fill='#50627e')
d.text((980,270),'每片按 12 × 12 mm 布置',font=F(23),fill='#283a4c')
d.text((980,316),'中心孔 Ø4.4 mm',font=F(23),fill='#283a4c')
d.text((980,362),'开口保留原 90° 扇形',font=F(23),fill='#283a4c')
d.text((980,410),'虚线仅作裁切参考',font=F(23),fill='#283a4c')
d.text((980,452),'模型没有预制割缝',font=F(23),fill='#283a4c')
d.text((980,700),'切割后按缺口方向装配',font=F(23),fill='#283a4c')
d.text((980,742),'先确认打印商能否制作',font=F(23),fill='#a03a35')
im.save(O/'一体板_裁切示意.png')