feat: 拆分 STEP 编辑器并完善最小系统

将原来的 main.py/step_model.py 拆分为 step_editor 包，补充测量、同域高亮、模型修复、历史导出、槽宽/凸台/边长等 MVP 编辑能力，并更新 README 和忽略规则。
2026-07-27 18:28:26 +08:00
parent 1ab595f82e
commit 26216064e0
24 changed files with 13683 additions and 9688 deletions
@@ -0,0 +1,59 @@
+from __future__ import annotations
+
+from OCC.Core.GeomAbs import (
+    GeomAbs_BSplineCurve,
+    GeomAbs_BSplineSurface,
+    GeomAbs_BezierCurve,
+    GeomAbs_BezierSurface,
+    GeomAbs_Circle,
+    GeomAbs_Cone,
+    GeomAbs_Cylinder,
+    GeomAbs_Ellipse,
+    GeomAbs_Hyperbola,
+    GeomAbs_Line,
+    GeomAbs_OffsetSurface,
+    GeomAbs_OtherCurve,
+    GeomAbs_OtherSurface,
+    GeomAbs_Parabola,
+    GeomAbs_Plane,
+    GeomAbs_Sphere,
+    GeomAbs_SurfaceOfExtrusion,
+    GeomAbs_SurfaceOfRevolution,
+    GeomAbs_Torus,
+)
+from OCC.Core.TopAbs import TopAbs_EXTERNAL, TopAbs_FORWARD, TopAbs_INTERNAL, TopAbs_REVERSED
+
+
+SURFACE_TYPES = {
+    GeomAbs_Plane: "plane",
+    GeomAbs_Cylinder: "cylinder",
+    GeomAbs_Cone: "cone",
+    GeomAbs_Sphere: "sphere",
+    GeomAbs_Torus: "torus",
+    GeomAbs_BezierSurface: "bezier surface",
+    GeomAbs_BSplineSurface: "b-spline surface",
+    GeomAbs_SurfaceOfRevolution: "surface of revolution",
+    GeomAbs_SurfaceOfExtrusion: "surface of extrusion",
+    GeomAbs_OffsetSurface: "offset surface",
+    GeomAbs_OtherSurface: "other surface",
+}
+
+SNAPSHOT_FACE_LOGICAL_IDS_KEY = "__face_logical_ids__"
+
+CURVE_TYPES = {
+    GeomAbs_Line: "line",
+    GeomAbs_Circle: "circle",
+    GeomAbs_Ellipse: "ellipse",
+    GeomAbs_Hyperbola: "hyperbola",
+    GeomAbs_Parabola: "parabola",
+    GeomAbs_BezierCurve: "bezier curve",
+    GeomAbs_BSplineCurve: "b-spline curve",
+    GeomAbs_OtherCurve: "other curve",
+}
+
+ORIENTATION_TYPES = {
+    TopAbs_FORWARD: "forward",
+    TopAbs_REVERSED: "reversed",
+    TopAbs_INTERNAL: "internal",
+    TopAbs_EXTERNAL: "external",
+}