chore: import 3d-drawing history from local Code/3d-drawing (subfolder, history preserved)

3d-drawing/scripts/verify_geom/slice.py

@@ -0,0 +1,77 @@
+import sys, json, pickle, math
+sys.path += ['/root/.local/lib/python3.13/site-packages','/usr/local/lib/python3.13/dist-packages','/usr/lib/python3/dist-packages']
+from build123d import import_step, Edge, Shape
+from OCP.BRepAlgoAPI import BRepAlgoAPI_Section
+from OCP.gp import gp_Pln, gp_Pnt, gp_Dir
+from OCP.BRepBuilderAPI import BRepBuilderAPI_MakeFace
+from OCP.TopExp import TopExp_Explorer
+from OCP.TopAbs import TopAbs_EDGE
+from OCP.TopoDS import TopoDS
+import numpy as np
+solids = import_step("/mnt/user-data/uploads/97.과제/Code/3d-drawing/model/tunnel_solids.step").solids()
+mp = pickle.load(open('/tmp/verify_daesan2_run/mapping.pkl','rb'))['mapping']
+caps = json.load(open('/tmp/verify_daesan2_run/caps.json'))
+ch = json.load(open('/tmp/verify_daesan2_run/chain.json'))
+lin = ch['lin']
+starts = {k: np.array(v) for k,v in ch['starts'].items()}
+ends = {k: np.array(v) for k,v in ch['ends'].items()}
+# station knots
+S = [caps[k]['from_sta'] for k in lin] + [caps[lin[-1]]['to_sta']]
+P = [starts[k] for k in lin] + [ends[lin[-1]]]
+def plane_at(s):
+    for i in range(len(lin)):
+        if S[i] <= s <= S[i+1]:
+            f=(s-S[i])/(S[i+1]-S[i])
+            Q=(1-f)*P[i]+f*P[i+1]
+            T=(P[i+1]-P[i])[:2]; T=T/np.linalg.norm(T)
+            return Q, T, lin[i]
+    raise ValueError(s)
+def slice_solid(idx, Q, T):
+    nrm=np.array([T[0],T[1],0.0])
+    pl=gp_Pln(gp_Pnt(*Q), gp_Dir(*nrm))
+    face=BRepBuilderAPI_MakeFace(pl,-80,80,-80,80).Face()
+    sec=BRepAlgoAPI_Section(solids[idx].wrapped, face); sec.Build()
+    sh=sec.Shape()
+    polys=[]
+    exp=TopExp_Explorer(sh, TopAbs_EDGE)
+    while exp.More():
+        e=Shape.cast(exp.Current())
+        L=e.length; N=max(2,int(L/0.02))
+        pts=[e.position_at(i/N) for i in range(N+1)]
+        polys.append([[p.X,p.Y,p.Z] for p in pts])
+        exp.Next()
+    return polys
+out={}
+stations=[4745.0005, 5100.0, 5469.9995]
+for s in stations:
+    Q,T,lk=plane_at(s)
+    eh=np.array([-T[1],T[0]])
+    print(f"== station {s}: comp {lk}, Q=({Q[0]:.4f},{Q[1]:.4f},{Q[2]:.4f}) T=({T[0]:.5f},{T[1]:.5f}) ")
+    out[str(s)]={'Q':Q.tolist(),'T':T.tolist(),'eh':eh.tolist(),'comps':{}}
+    for cid,info in caps.items():
+        if not (info['from_sta'] <= s <= info['to_sta']): continue
+        polys=slice_solid(mp[cid], Q, T)
+        uv=[]
+        for pl_ in polys:
+            arr=np.array(pl_)
+            dx=arr[:,:2]-Q[:2]
+            u=dx@eh; v=arr[:,2]
+            uv.append(np.stack([u,v],1).tolist())
+        out[str(s)]['comps'][cid]={'group':info['group'],'polys':uv}
+        allp=np.vstack([np.array(x) for x in uv]) if uv else np.zeros((0,2))
+        if info['group'] in ('라이닝','굴착면','노면(계획고)','기층·인버트(가정)','공동구(가정)') or cid.startswith('DRN') or 'DRN' in cid or 'HI' in cid:
+            pass
+    # summary per group
+    import collections
+    summ=collections.defaultdict(list)
+    for cid,v in out[str(s)]['comps'].items():
+        summ[v['group']].append(cid)
+    for g,cids in summ.items():
+        allp=[p for cid in cids for poly in out[str(s)]['comps'][cid]['polys'] for p in poly]
+        A=np.array(allp) if allp else np.zeros((0,2))
+        if len(A):
+            print(f"  {g}: n_comp={len(cids)} n_pts={len(A)} u[{A[:,0].min():.3f},{A[:,0].max():.3f}] v[{A[:,1].min():.3f},{A[:,1].max():.3f}] ids={cids[:4]}")
+        else:
+            print(f"  {g}: n_comp={len(cids)} EMPTY ids={cids[:4]}")
+json.dump(out, open('/tmp/verify_daesan2_run/sections_raw.json','w'))
+print("saved sections_raw.json")