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2026-07-22 13:48:46 +08:00
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+"""Profile operations: revolve, loft, and sweep.
+
+Run from the repository root with:
+    uv run python examples/05_loft_sweep_revolve.py
+"""
+
+from pathlib import Path
+
+import simplecadapi as scad
+
+
+OUT = Path("examples/out")
+OUT.mkdir(parents=True, exist_ok=True)
+
+# Revolve a closed profile into a small knob.
+profile = scad.make_polyline_rwire(
+    [(0.0, 0.0, 0.0), (4.0, 0.0, 0.0), (3.0, 0.0, 8.0), (1.0, 0.0, 8.0)],
+    closed=True,
+)
+knob = scad.revolve_rsolid(profile, axis=(0.0, 0.0, 1.0), angle=360.0)
+
+# Loft between rectangular sections.
+a = scad.make_rectangle_rwire(8.0, 8.0, center=(16.0, 0.0, 0.0))
+b = scad.make_rectangle_rwire(4.0, 4.0, center=(16.0, 0.0, 8.0))
+loft = scad.loft_rsolid([a, b])
+
+# Sweep a circular face along a polyline path.
+profile_face = scad.make_circle_rface((30.0, 0.0, 0.0), 1.0, normal=(1.0, 0.0, 0.0))
+path = scad.make_polyline_rwire([(30.0, 0.0, 0.0), (34.0, 0.0, 3.0), (38.0, 3.0, 6.0)])
+swept = scad.sweep_rsolid(profile_face, path)
+
+scad.export_step([knob, loft, swept], str(OUT / "profile_operations.step"))
+print("knob", round(knob.get_volume(), 3))
+print("loft", round(loft.get_volume(), 3))
+print("swept", round(swept.get_volume(), 3))