from PIL import Image,ImageDraw,ImageFont
from pathlib import Path
O=Path(r'C:\projects\wheel\models\kfl_double_crossbar_concept'); im=Image.new('RGB',(1700,1150),'white'); d=ImageDraw.Draw(im)
def f(n):return ImageFont.truetype(r'C:\Windows\Fonts\msyh.ttc',n)
def txt(x,y,s,n=28,c='#243349'):d.text((x,y),s,font=f(n),fill=c)
txt(60,35,'加长 L 角码：选购规格示意',45);txt(62,100,'尺寸均为建模假设；确认实物、折弯圆角和孔位后再采购。',25)
# front view of upright; pixel/mm = 11; bottom edge at 790, y 45
x0=170;y0=260;s=11
d.rectangle((x0,y0,x0+18*s,y0+45*s),fill='#f5a245',outline='#623c17',width=4)
sx=x0+9*s;sy=y0+12*s;rad=2.75*s
d.rounded_rectangle((sx-rad,sy-4.75*s,sx+rad,sy+4.75*s),radius=int(rad),fill='white',outline='#704214',width=3)
txt(110,800,'正视：竖腿贴住铝板',25)
d.line((x0+18*s+25,y0,x0+18*s+25,y0+45*s),fill='#335',width=2);txt(x0+18*s+35,460,'45',26)
d.line((x0,y0-25,x0+18*s,y0-25),fill='#335',width=2);txt(x0+50,y0-65,'18',26)
txt(440,315,'长槽 9.5 × 5.5',28);d.line((sx+30,sy,425,sy),fill='#335',width=2)
txt(440,375,'槽中心距顶端 12',25);txt(440,420,'距折弯底端 33',25)
# side diagram scale 10, cutaway L
x=1040;y=260;s=10
d.rectangle((x,y,x+3*s,y+45*s),fill='#f5a245',outline='#623c17',width=3)
d.rectangle((x,y+42*s,x+20*s,y+45*s),fill='#f5a245',outline='#623c17',width=3)
d.line((x-25,y,x-25,y+45*s),fill='#335',width=2);txt(x-95,y+200,'45',26)
d.line((x,y+45*s+28,x+20*s,y+45*s+28),fill='#335',width=2);txt(x+75,y+45*s+40,'20',26)
txt(980,800,'侧视：两腿连续折弯；板厚 3',25)
txt(60,900,'横梁侧：圆孔 Ø5.5，孔中心在 20 mm 腿长度中间。',27)
txt(60,955,'铝板上对应水平槽，长槽交叉用于对中。示意未画真实折弯圆角。',27)
txt(60,1010,'四只长角码；横梁两端另外各用一只普通角码。',27)
im.save(O/'加长角码_尺寸假设.png')