Add rib_web to Brain output + import_profile draws rib material

Brain: profile_assembly.py now exports 'rib_web' — the actual material
geometry from Shapely boolean (exterior + interior rings). This is the
rib shape, not the pocket cutouts.

import_profile.py: prefers rib_web when available, drawing exterior +
interior polyline rings directly. Falls back to pocket-based drawing
for older rib JSONs without rib_web.

tools/adaptive-isogrid/src/brain/profile_assembly.py

@@ -106,10 +106,28 @@ def profile_to_json(ribbed_plate, pockets, geometry, params):
                 'is_circular': True,
             })
 
+    # Rib web profile: the actual material geometry from Shapely boolean
+    # This is what NX needs to draw — the ribs, not the pockets.
+    rib_web_rings = []
+    if ribbed_plate.geom_type == 'Polygon':
+        polys = [ribbed_plate]
+    elif ribbed_plate.geom_type == 'MultiPolygon':
+        polys = list(ribbed_plate.geoms)
+    else:
+        polys = []
+
+    for poly in polys:
+        ring = {
+            'exterior': [list(c) for c in poly.exterior.coords],
+            'interiors': [[list(c) for c in interior.coords] for interior in poly.interiors],
+        }
+        rib_web_rings.append(ring)
+
     return {
         'valid': True,
         'outer_boundary': outer,
         'pockets': pocket_data,
         'holes': hole_data,
+        'rib_web': rib_web_rings,
         'parameters_used': params,
     }

tools/adaptive-isogrid/src/nx/import_profile.py

@@ -877,81 +877,93 @@ def main():
             continue
 
         # --- Draw geometry ---
-        pockets = profile.get("pockets", [])
-        outer_2d = profile.get("outer_boundary", [])
+        rib_web = profile.get("rib_web", [])
 
-        # Check if pockets are structured (lines+arcs) or legacy (point lists)
-        is_structured = (len(pockets) > 0 and isinstance(pockets[0], dict)
-                         and 'lines' in pockets[0])
-
-        if is_structured:
-            lister.WriteLine(f"[import] Structured format: {len(pockets)} pockets + outer boundary")
-
-            # Outer boundary (handles both v1.0 polyline and v2.0 typed segments)
-            outer_lines, outer_arcs = _draw_outer_boundary(work_part, outer_2d, transform, lister)
-            lister.WriteLine(f"[import] Outer boundary: {outer_lines} lines + {outer_arcs} arcs")
-
-            # Pockets
-            total_lines = outer_lines
-            total_arcs = outer_arcs
-            for idx, pocket in enumerate(pockets):
-                nl, na = _draw_structured_pocket(work_part, pocket, transform, lister)
-                total_lines += nl
-                total_arcs += na
-                if (idx + 1) % 50 == 0:
-                    lister.WriteLine(f"[import]   ... {idx+1}/{len(pockets)} pockets drawn")
-
-            lister.WriteLine(f"[import] Done: {total_lines} lines + {total_arcs} arcs in sketch")
-            lister.WriteLine(f"[import]   Expected: ~{len(pockets)*3} lines + ~{len(pockets)*3} arcs")
-
-            # Holes (bolt circles etc.)
-            holes = profile.get("holes", [])
-            if holes:
-                holes_drawn = 0
-                for hole in holes:
-                    try:
-                        cx, cy = hole["center"]
-                        r = hole["diameter"] / 2.0
-                        # Draw as circle: 3 points on circumference
-                        p1 = [cx + r, cy]
-                        p2 = [cx, cy + r]
-                        p3 = [cx - r, cy]
-                        p1_3d = unproject_point_to_3d(p1, transform)
-                        p2_3d = unproject_point_to_3d(p2, transform)
-                        p3_3d = unproject_point_to_3d(p3, transform)
-                        _draw_arc_3pt(work_part, p1_3d, p2_3d, p3_3d)
-                        # Second half of circle
-                        p4 = [cx, cy - r]
-                        p4_3d = unproject_point_to_3d(p4, transform)
-                        _draw_arc_3pt(work_part, p3_3d, p4_3d, p1_3d)
-                        holes_drawn += 1
-                        total_arcs += 2
-                    except Exception as exc:
-                        lister.WriteLine(f"[import] WARN: hole {hole.get('index','?')} failed: {exc}")
-                lister.WriteLine(f"[import] Holes: {holes_drawn}/{len(holes)} drawn ({holes_drawn*2} arcs)")
-
-        else:
-            # Legacy format: pockets are point lists
-            lister.WriteLine(f"[import] Legacy format: {len(pockets)} pocket polylines")
-            outer_lines, outer_arcs = _draw_outer_boundary(work_part, outer_2d, transform, lister)
-            total_lines = outer_lines
-            for pocket_pts in pockets:
-                if len(pocket_pts) < 3:
-                    continue
-                pocket_3d = unproject_to_3d(pocket_pts, transform)
-                n = len(pocket_3d)
-                d = math.sqrt(sum((a - b)**2 for a, b in zip(pocket_3d[0], pocket_3d[-1])))
+        if rib_web:
+            # ===== RIB WEB MODE: draw the actual material profile =====
+            # rib_web is a list of polygon rings, each with 'exterior' and 'interiors'
+            # The exterior is the outer boundary of the rib material
+            # Each interior is a cutout (pocket or bolt hole)
+            total_lines = 0
+            for ring_idx, ring in enumerate(rib_web):
+                # Draw exterior ring
+                ext_pts = ring['exterior']
+                ext_3d = unproject_to_3d(ext_pts, transform)
+                n = len(ext_3d)
+                # Close if needed
+                d = math.sqrt(sum((a - b)**2 for a, b in zip(ext_3d[0], ext_3d[-1])))
                 if d < 0.001:
                     n -= 1
                 for i in range(n):
                     try:
-                        _draw_line(work_part, pocket_3d[i], pocket_3d[(i+1) % n])
+                        _draw_line(work_part, ext_3d[i], ext_3d[(i+1) % n])
                         total_lines += 1
                     except Exception:
                         pass
-            lister.WriteLine(f"[import] Done: {total_lines} lines in sketch")
+                lister.WriteLine(f"[import] Ring {ring_idx}: exterior {total_lines} lines")
 
-            # Holes (legacy path too)
+                # Draw interior rings (pocket/hole cutouts)
+                for int_idx, interior in enumerate(ring.get('interiors', [])):
+                    int_3d = unproject_to_3d(interior, transform)
+                    m = len(int_3d)
+                    d2 = math.sqrt(sum((a - b)**2 for a, b in zip(int_3d[0], int_3d[-1])))
+                    if d2 < 0.001:
+                        m -= 1
+                    for i in range(m):
+                        try:
+                            _draw_line(work_part, int_3d[i], int_3d[(i+1) % m])
+                            total_lines += 1
+                        except Exception:
+                            pass
+                    if (int_idx + 1) % 50 == 0:
+                        lister.WriteLine(f"[import]   ... {int_idx+1}/{len(ring['interiors'])} interiors drawn")
+
+            num_interiors = sum(len(r.get('interiors', [])) for r in rib_web)
+            lister.WriteLine(f"[import] Rib web: {len(rib_web)} ring(s), {num_interiors} interiors, {total_lines} total lines")
+
+        else:
+            # ===== LEGACY FALLBACK: pocket-based drawing =====
+            pockets = profile.get("pockets", [])
+            outer_2d = profile.get("outer_boundary", [])
+
+            # Check if pockets are structured (lines+arcs) or legacy (point lists)
+            is_structured = (len(pockets) > 0 and isinstance(pockets[0], dict)
+                             and 'lines' in pockets[0])
+
+            if is_structured:
+                lister.WriteLine(f"[import] Structured format: {len(pockets)} pockets + outer boundary")
+                outer_lines, outer_arcs = _draw_outer_boundary(work_part, outer_2d, transform, lister)
+                lister.WriteLine(f"[import] Outer boundary: {outer_lines} lines + {outer_arcs} arcs")
+                total_lines = outer_lines
+                total_arcs = outer_arcs
+                for idx, pocket in enumerate(pockets):
+                    nl, na = _draw_structured_pocket(work_part, pocket, transform, lister)
+                    total_lines += nl
+                    total_arcs += na
+                    if (idx + 1) % 50 == 0:
+                        lister.WriteLine(f"[import]   ... {idx+1}/{len(pockets)} pockets drawn")
+                lister.WriteLine(f"[import] Done: {total_lines} lines + {total_arcs} arcs in sketch")
+            else:
+                lister.WriteLine(f"[import] Legacy format: {len(pockets)} pocket polylines")
+                outer_lines, outer_arcs = _draw_outer_boundary(work_part, outer_2d, transform, lister)
+                total_lines = outer_lines
+                for pocket_pts in pockets:
+                    if len(pocket_pts) < 3:
+                        continue
+                    pocket_3d = unproject_to_3d(pocket_pts, transform)
+                    n = len(pocket_3d)
+                    d = math.sqrt(sum((a - b)**2 for a, b in zip(pocket_3d[0], pocket_3d[-1])))
+                    if d < 0.001:
+                        n -= 1
+                    for i in range(n):
+                        try:
+                            _draw_line(work_part, pocket_3d[i], pocket_3d[(i+1) % n])
+                            total_lines += 1
+                        except Exception:
+                            pass
+                lister.WriteLine(f"[import] Done: {total_lines} lines in sketch")
+
+            # Holes for legacy/structured fallback
             holes = profile.get("holes", [])
             if holes:
                 holes_drawn = 0