0023987: 2D fillets

Added test cases in group bugs/modalg_5 Test cases were put to corresponding regular grid fillet2d
2025-09-18 14:27:39 +03:00 · 2013-08-22 13:04:16 +04:00
parent 22774b6295
commit 8b7c5e4715
25 changed files with 3165 additions and 1 deletions
--- a/src/ChFi2d/ChFi2d_ChamferAPI.cxx
+++ b/src/ChFi2d/ChFi2d_ChamferAPI.cxx
@@ -0,0 +1,131 @@
+// Copyright (c) 1999-2012 OPEN CASCADE SAS
+//
+// The content of this file is subject to the Open CASCADE Technology Public
+// License Version 6.5 (the "License"). You may not use the content of this file
+// except in compliance with the License. Please obtain a copy of the License
+// at http://www.opencascade.org and read it completely before using this file.
+//
+// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
+// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+//
+// The Original Code and all software distributed under the License is
+// distributed on an "AS IS" basis, without warranty of any kind, and the
+// Initial Developer hereby disclaims all such warranties, including without
+// limitation, any warranties of merchantability, fitness for a particular
+// purpose or non-infringement. Please see the License for the specific terms
+// and conditions governing the rights and limitations under the License.
+
+#include <ChFi2d_ChamferAPI.hxx>
+
+#include <Precision.hxx>
+#include <gp_Pnt.hxx>
+#include <GC_MakeLine.hxx>
+#include <BRep_Tool.hxx>
+#include <BRepBuilderAPI_MakeEdge.hxx>
+#include <TopoDS_Iterator.hxx>
+#include <TopoDS.hxx>
+
+// An empty constructor.
+ChFi2d_ChamferAPI::ChFi2d_ChamferAPI()
+{
+
+}
+
+// A constructor accepting a wire consisting of two linear edges.
+ChFi2d_ChamferAPI::ChFi2d_ChamferAPI(const TopoDS_Wire& theWire)
+{
+  Init(theWire);
+}
+
+// A constructor accepting two linear edges.
+ChFi2d_ChamferAPI::ChFi2d_ChamferAPI(const TopoDS_Edge& theEdge1, const TopoDS_Edge& theEdge2)
+{
+  Init(theEdge1, theEdge2);
+}
+
+// Initializes the class by a wire consisting of two libear edges.
+void ChFi2d_ChamferAPI::Init(const TopoDS_Wire& theWire)
+{
+  TopoDS_Edge E1, E2;
+  TopoDS_Iterator itr(theWire);
+  for (; itr.More(); itr.Next())
+  {
+    if (E1.IsNull())
+      E1 = TopoDS::Edge(itr.Value());
+    else if (E2.IsNull())
+      E2 = TopoDS::Edge(itr.Value());
+    else
+      break;
+  }
+  Init(E1, E2);
+}
+
+// Initializes the class by two linear edges.
+void ChFi2d_ChamferAPI::Init(const TopoDS_Edge& theEdge1, const TopoDS_Edge& theEdge2)
+{
+  myEdge1 = theEdge1;
+  myEdge2 = theEdge2;
+}
+
+// Constructs a chamfer edge.
+// Returns true if the edge is constructed.
+Standard_Boolean ChFi2d_ChamferAPI::Perform()
+{
+  myCurve1 = BRep_Tool::Curve(myEdge1, myStart1, myEnd1);
+  myCurve2 = BRep_Tool::Curve(myEdge2, myStart2, myEnd2);
+  // searching for common points
+  if (myCurve1->Value(myStart1).IsEqual(myCurve2->Value(myEnd2), Precision::Confusion())) 
+  {
+    myCommonStart1 = true;
+    myCommonStart2 = false;
+  } 
+  else 
+  {
+    if (myCurve1->Value(myEnd1).IsEqual(myCurve2->Value(myStart2), Precision::Confusion())) 
+    {
+      myCommonStart1 = false;
+      myCommonStart2 = true;
+    } 
+    else
+    {
+      if (myCurve1->Value(myEnd1).IsEqual(myCurve2->Value(myEnd2), Precision::Confusion())) 
+      {
+        myCommonStart1 = false;
+        myCommonStart2 = false;
+      } 
+      else 
+      {
+        myCommonStart1 = true;
+        myCommonStart2 = true;
+      }
+    }
+  }
+  return Standard_True;
+}
+
+// Returns the result (chamfer edge, modified edge1, modified edge2).
+TopoDS_Edge ChFi2d_ChamferAPI::Result(TopoDS_Edge& theEdge1, TopoDS_Edge& theEdge2,
+                                      const Standard_Real theLength1, const Standard_Real theLength2) 
+{
+  TopoDS_Edge aResult;
+  if (Abs(myEnd1 - myStart1) < theLength1) 
+    return aResult;
+  if (Abs(myEnd2 - myStart2) < theLength2) 
+    return aResult;
+
+  Standard_Real aCommon1 = (myCommonStart1?myStart1:myEnd1) + (((myStart1 > myEnd1)^myCommonStart1)?theLength1:-theLength1);
+  Standard_Real aCommon2 = (myCommonStart2?myStart2:myEnd2) + (((myStart2 > myEnd2)^myCommonStart2)?theLength2:-theLength2);
+
+  // make chamfer edge
+  GC_MakeLine aML(myCurve1->Value(aCommon1), myCurve2->Value(aCommon2));
+  BRepBuilderAPI_MakeEdge aBuilder(aML.Value(), myCurve1->Value(aCommon1), myCurve2->Value(aCommon2));
+  aResult = aBuilder.Edge();
+  // divide first edge
+  BRepBuilderAPI_MakeEdge aDivider1(myCurve1, aCommon1, (myCommonStart1?myEnd1:myStart1));
+  theEdge1 = aDivider1.Edge();
+  // divide second edge
+  BRepBuilderAPI_MakeEdge aDivider2(myCurve2, aCommon2, (myCommonStart2?myEnd2:myStart2));
+  theEdge2 = aDivider2.Edge();
+
+  return aResult;
+}