From 8d5f411b22d63b81c661497802ac4403dbad3760 Mon Sep 17 00:00:00 2001
From: "Zheng, Lei" <realthunder.dev@gmail.com>
Date: Fri, 16 Feb 2024 12:11:43 -0500
Subject: [PATCH] Toponaming/Part:  Transfer makEPipeShell

---
 src/Mod/Part/App/TopoShape.h            | 51 ++++++++++++++++++++++++-
 src/Mod/Part/App/TopoShapeExpansion.cpp |  1 +
 2 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/src/Mod/Part/App/TopoShape.h b/src/Mod/Part/App/TopoShape.h
index 75d0b8f597..f6437ddb1e 100644
--- a/src/Mod/Part/App/TopoShape.h
+++ b/src/Mod/Part/App/TopoShape.h
@@ -134,8 +134,7 @@ enum class LinearizeFace
     linearizeFaces
 };
 
-enum class LinearizeEdge
-{
+enum class LinearizeEdge {
     noEdges,
     linearizeEdges
 };
@@ -158,6 +157,29 @@ enum class IsClosed
     closed
 };
 
+/// Option to manage discontinuity in pipe sweeping
+enum class TransitionMode {
+    /** Discontinuities are treated by modification of the sweeping mode.
+     * The pipe is "transformed" at the fractures of the spine. This mode
+     * assumes building a self-intersected shell.
+     */
+    Transformed,
+
+    /** Discontinuities are treated like right corner. Two pieces of the
+     * pipe corresponding to two adjacent segments of the spine are
+     * extended and intersected at a fracture of the spine.
+     */
+    RightCorner,
+
+    /** Discontinuities are treated like round corner. The corner is
+     * treated as rotation of the profile around an axis which passes
+     * through the point of the spine's fracture. This axis is based on
+     * cross product of directions tangent to the adjacent segments of the
+     * spine at their common point.
+    */
+    RoundCorner
+};
+
 /** The representation for a CAD Shape
  */
 // NOLINTNEXTLINE cppcoreguidelines-special-member-functions
@@ -720,6 +742,31 @@ public:
     }
     //@}
 
+    /* Make a shell or solid by sweeping profile wire along a spine
+     *
+     * @params sources: source shapes. The first shape is used as spine. The
+     *                  rest are used as section profiles. Can be of type edge,
+     *                  wire, face, or compound of those. For face, only outer
+     *                  wire is used.
+     * @params makeSolid: whether to create solid
+     * @param isFrenet: if true, then assume the profiles transition is Frenet,
+     *                  or else a corrected Frenet trihedron is used.
+     * @param transition: @sa TransitionMode
+     * @param op: optional string to be encoded into topo naming for indicating
+     *            the operation
+     * @param tol3d: 3D tolerance
+     * @param tolBound: boundary tolerance
+     * @param tolAngular: angular tolerance
+     *
+     * @return The original content of this TopoShape is discarded and replaced
+     *         with the new shape. The function returns the TopoShape itself as
+     *         a self reference so that multiple operations can be carried out
+     *         for the same shape in the same line of code.
+     */
+    TopoShape &makEPipeShell(const std::vector<TopoShape> &sources, const Standard_Boolean makeSolid,
+                             const Standard_Boolean isFrenet, TransitionMode transition=TransitionMode::Transformed,
+                             const char *op=nullptr, double tol3d=0.0, double tolBound=0.0, double tolAngluar=0.0);
+
     /** Try to simplify geometry of any linear/planar subshape to line/plane
      *
      * @return Return true if the shape is modified
diff --git a/src/Mod/Part/App/TopoShapeExpansion.cpp b/src/Mod/Part/App/TopoShapeExpansion.cpp
index 4a3d3eb431..e1dec657bc 100644
--- a/src/Mod/Part/App/TopoShapeExpansion.cpp
+++ b/src/Mod/Part/App/TopoShapeExpansion.cpp
@@ -2592,6 +2592,7 @@ TopoShape& TopoShape::makeElementRefine(const TopoShape& shape, const char* op,
     return *this;
 }
 
+
 /**
  *  Encode and set an element name in the elementMap.  If a hasher is defined, apply it to the name.
  *