feat(parser): add 2D CAD DWG/DXF parsing and drawing classification engine

.gitignore

@@ -0,0 +1,7 @@
+__pycache__/
+*.py[cod]
+*$py.class
+.venv/
+venv/
+*.tmp
+.DS_Store

bundle_data.py

@@ -0,0 +1,57 @@
+import json
+import os
+import cad_parser
+import model_3d
+import exporters
+
+os.makedirs('static/data', exist_ok=True)
+
+# 1. Parse all DWG drawings in current workspace and sibling project folders
+known_drawings_map = {}
+workspace_drawings = cad_parser.parse_all_project_drawings('.')
+for d in workspace_drawings:
+    known_drawings_map[d['fileName']] = d
+
+parent_dir = '..'
+sibling_sets = {'STA.13+611.21': workspace_drawings}
+if os.path.exists(parent_dir):
+    for sub in sorted(os.listdir(parent_dir)):
+        sub_path = os.path.join(parent_dir, sub)
+        if os.path.isdir(sub_path) and os.path.abspath(sub_path) != os.path.abspath('.'):
+            sub_dwgs = cad_parser.parse_all_project_drawings(sub_path)
+            if sub_dwgs:
+                for d in sub_dwgs:
+                    known_drawings_map[d['fileName']] = d
+                st = (sub_dwgs[0].get('structuralParams') or {}).get('station') or (sub_dwgs[0].get('rebarSpecs') or {}).get('station') or sub
+                sibling_sets[st] = sub_dwgs
+
+with open('all_drawings_data.json', 'w', encoding='utf-8') as f:
+    json.dump(list(known_drawings_map.values()), f, ensure_ascii=False, indent=2)
+
+# 2. Generate 3D exterior + rebar models for each drawing set
+known_models_map = {}
+for st_key, dwg_list in sibling_sets.items():
+    known_models_map[st_key] = model_3d.generate_full_model(drawings_list=dwg_list)
+
+default_model = known_models_map.get('STA.13+611.21') or next(iter(known_models_map.values()))
+with open('model_3d.json', 'w', encoding='utf-8') as f:
+    json.dump(default_model, f, ensure_ascii=False, indent=2)
+
+# 3. Bundle JS datasets for offline standalone lookup by uploaded filename
+with open('static/data/drawing_data.js', 'w', encoding='utf-8') as f:
+    f.write('window.KNOWN_DRAWINGS_MAP = ' + json.dumps(known_drawings_map, ensure_ascii=False) + ';\n')
+    f.write('window.DEFAULT_DRAWING_DATA = null;\n')
+    f.write('window.DEFAULT_DRAWINGS_LIST = [];\n')
+
+with open('static/data/model_3d.js', 'w', encoding='utf-8') as f:
+    f.write('window.KNOWN_MODELS_MAP = ' + json.dumps(known_models_map, ensure_ascii=False) + ';\n')
+    f.write('window.DEFAULT_MODEL_3D = ' + json.dumps(default_model, ensure_ascii=False) + ';\n')
+
+with open('wingwall_model.obj', 'w', encoding='utf-8') as f:
+    f.write(exporters.export_obj(default_model))
+with open('wingwall_model.stl', 'w', encoding='utf-8') as f:
+    f.write(exporters.export_stl(default_model))
+with open('wingwall_model.dxf', 'w', encoding='utf-8') as f:
+    f.write(exporters.export_dxf_3d(default_model))
+
+print(f"Bundled {len(known_drawings_map)} DWG drawings and {len(known_models_map)} 3D models into static/data/.")

requirements.txt

@@ -0,0 +1,5 @@
+ezdxf>=1.4.3
+ezdwg>=0.16.3
+flask>=3.0.0
+flask-cors>=4.0.0
+numpy>=1.24.0