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cfd_data_fix/UPF_P0207.01_ID1_cut1/preprocess_log.txt

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+
+============================================================
+  Session started: 2026-04-22 10:58:53
+============================================================
+
+════════════════════════════════════════════════════════════
+  Processing: UPF_P0207.01_ID1_cut1
+════════════════════════════════════════════════════════════
+
+── Step 1: Centerline extraction ──
+Reading PLY surface file.
+Cleaning surface.
+Triangulating surface.
+Computing centerlines.
+Computing centerlines...
+Centerlines [accept / redo / skip] (default=accept): 
+── Step 2: Vessel clipping ──
+
+Current cut distances (how far from aneurysm to cut each branch):
+  Branch 0 (downstream): 4.0 mm  (branch total: 38.2 mm)
+  Branch 1 (downstream): 4.0 mm  (branch total: 25.1 mm)
+Accept these cut distances? (Y/n):   Branch 0 (downstream) distance [4.0]:   Branch 1 (downstream) distance [4.0]: 
+Current cut distances (how far from aneurysm to cut each branch):
+  Branch 0 (downstream): 6.0 mm  (branch total: 38.2 mm)
+  Branch 1 (downstream): 6.0 mm  (branch total: 25.1 mm)
+Accept these cut distances? (Y/n):   Dome protection: dome_sac.ply, 9789 vertices protected (dist < 0.50 mm)
+  Clipping: 43784 vertices removed, 9789 dome-protected
+
+  ────────────────────────────────────────────────────────
+  Cut cross-section equivalent diameters (2 openings):
+  ────────────────────────────────────────────────────────
+    Opening 0: D_eq = 3.507 mm  ←  inlet  (branch 0)
+    Opening 1: D_eq = 3.103 mm  ←  outlet (branch 1)
+  ────────────────────────────────────────────────────────
+  Suggested extension length: ~4× diameter for single outlet.
+  ────────────────────────────────────────────────────────
+
+Accept clipping? (Y/n): 
+── Step 3: Vessel extension ──
+
+  Extension modes:
+    centerline           = use original centerline only
+    straight             = straight extension from opening
+    centerline+straight  = original centerline a mm + straight b mm
+
+  Branch 0 (upstream, CL=32.1mm) mode [centerline]:     centerline part a [2.0mm]:     straight part b [2.0mm]:   Branch 1 (downstream, CL=19.0mm) mode [centerline]:     centerline part a [2.0mm]:     straight part b [2.0mm]:   Branch 0: centerline+straight, centerline=5.90 mm, straight=4.00 mm
+  Branch 1: centerline+straight, centerline=5.90 mm, straight=4.00 mm
+Accept vessel extension? (Y/n):   Saved: F:\NUS\labwork\paper3\aneux\PostTr\AneuX\UPF_P0207.01_ID1_cut1\merged_reconstruction.ply
+  Saved: branch_ranking.npy → [0, 1]
+
+── Step 4: Fallback clipping (side-wall sac isolation) ──
+  Clipping the ORIGINAL reconstruction mesh at the parent vessel.
+
+  Parent centerline: upstream branch 0 → neck → downstream branch 1
+  Upstream arc (neck → inlet): 38.2 mm
+  Downstream arc (neck → outlet): 25.1 mm
+
+  Keep upstream (toward inlet) [6.0 mm]:   Keep downstream (toward outlet) [6.0 mm]:   Single centerline: 637 pts, neck at index 383, upstream=0, downstream=1
+  Upstream cut: index 342, arc from neck = 4.1 mm
+  Downstream cut: index 424, arc from neck = 4.1 mm
+  Dome protection: dome_sac.ply, 9789 vertices protected (dist < 0.50 mm)
+  After scalar clip: 15687 vertices
+  Kept component 0 (closest to centroid), removed 1 disconnected parts
+  Saved fallback-clipped mesh → F:\NUS\labwork\paper3\aneux\PostTr\AneuX\UPF_P0207.01_ID1_cut1\clipped_reconstruction_fallback.ply
+Accept fallback clipping? (Y/n):   Fallback clipping accepted → clipped_reconstruction_fallback.ply
+  Saved: forward_fusion_info_fallback.npz (2 branches)
+  Saved: branch_ranking_fallback.npy → [0, 1]
+
+── Step 5: Final review ──
+Accept final mesh? (Y/n): Accept final mesh? (Y/n): 
+  Branch ordering (2 branches):
+    Branch 0 = inlet (upstream)
+    Branch 1 = outlet
+  (Inlet = endpoint 0 from registration, auto-detected as upstream)
+  ✓ UPF_P0207.01_ID1_cut1 complete.

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