建立方向盘项目初始版本

scripts/compose_kfl_125_switch60.py

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+from PIL import Image, ImageChops, ImageDraw, ImageFont
+from pathlib import Path
+
+out = Path(r'C:\projects\wheel\models\kfl_125_switch60_concept')
+font = r'C:\Windows\Fonts\msyh.ttc'
+title = ImageFont.truetype(font, 38)
+normal = ImageFont.truetype(font, 24)
+small = ImageFont.truetype(font, 21)
+im = Image.new('RGB', (1920, 1200), 'white')
+d = ImageDraw.Draw(im)
+d.text((40, 18), '125 mm 轴 · 开关及接线预留 60 mm', fill='#1a304d', font=title)
+d.text((40, 80), '轴 Ø12 × 125 mm；两端相同法兰；两块 8 mm 铝板，KFL001 反装', fill='#52657b', font=normal)
+d.rounded_rectangle((40, 123, 1880, 177), radius=8, fill='#fff0eb')
+d.text((55, 134), '概念示意：实际开关、轴承、接线和中心螺母未实测；不能认定实物可装', fill='#9b2b22', font=normal)
+
+view = Image.open(out / 'side.png').convert('RGB').rotate(90, expand=True)
+mask = ImageChops.difference(view, Image.new('RGB', view.size, 'white')).convert('L').point(lambda p:255 if p>12 else 0)
+bounds = mask.getbbox()
+if bounds:
+    view = view.crop(bounds)
+view.thumbnail((1760, 550))
+d.text((40, 196), '侧视：电机在左，方向盘侧在右', font=normal, fill='#243a55')
+im.paste(view, (80 + (1760-view.width)//2, 230 + (550-view.height)//2))
+d.line((40, 800, 1880, 800), fill='#d8e0e9', width=2)
+d.text((42, 819), '绿色：开关及接线 60 mm 包络占位；灰色 KFL 和中心 Ø47 孔为假设。', font=small, fill='#405b4a')
+d.text((42, 862), '电机侧不动；前轴承及前法兰前移 12 mm，轴和轴套前移 6 mm。', font=small, fill='#243a55')
+d.text((42, 905), '示意轴承中心距 76.5 mm，开关包络到两侧内圈各预留 1 mm；法兰与轴承座约 0.5 mm。', font=small, fill='#243a55')
+d.text((42, 948), '轴两端进入法兰各约 13.5 mm，轴端距法兰底盘内表面各 6.5 mm；键长与强度未知。', font=small, fill='#243a55')
+d.text((42, 991), '开关真实外形、白色拨片和接线弯曲、M3 中心螺母、KFL 凸起及工具空间尚未验证。', font=small, fill='#9b2b22')
+d.text((42, 1034), '60 mm 不是已验证的实物安全空间；以上间隙和尺寸仅限此假设模型。', font=small, fill='#9b2b22')
+im.save(out / '125mm轴_60mm开关_装配示意.png')