0031336: Modeling data - extend BRepPrimAPI_MakeBox with planar shape creation

[occt.git] / src / BRepPreviewAPI / BRepPreviewAPI_MakeBox.cxx

diff --git a/src/BRepPreviewAPI/BRepPreviewAPI_MakeBox.cxx b/src/BRepPreviewAPI/BRepPreviewAPI_MakeBox.cxx
new file mode 100644 (file)
index 0000000..5a75797
--- /dev/null
+++ b/src/BRepPreviewAPI/BRepPreviewAPI_MakeBox.cxx
@@ -0,0 +1,124 @@
+// Created on: 2020-01-31
+// Created by: Svetlana SHUTINA
+// Copyright (c) 2020 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement. 
+
+#include <BRepPreviewAPI_MakeBox.hxx>
+
+#include <BRep_Builder.hxx>
+#include <BRepBuilderAPI_MakeEdge.hxx>
+#include <BRepBuilderAPI_MakeFace.hxx>
+#include <BRepBuilderAPI_MakeVertex.hxx>
+#include <BRepBuilderAPI_MakeWire.hxx>
+
+#include <TopoDS_Compound.hxx>
+
+//=======================================================================
+//function : Build
+//purpose  :
+//=======================================================================
+void BRepPreviewAPI_MakeBox::Build()
+{
+  gp_Pnt anLocation = myWedge.Axes().Location();
+
+  gp_Pnt aFirstPoint (anLocation.X(), anLocation.Y(), anLocation.Z());
+  gp_Pnt aSecondPoint (anLocation.X() + myWedge.GetXMax(), anLocation.Y() + myWedge.GetYMax(), anLocation.Z() + myWedge.GetZMax());
+
+  Standard_Boolean aThinOnX = Abs (aFirstPoint.X() - aSecondPoint.X()) < Precision::Confusion();
+  Standard_Boolean aThinOnY = Abs (aFirstPoint.Y() - aSecondPoint.Y()) < Precision::Confusion();
+  Standard_Boolean aThinOnZ = Abs (aFirstPoint.Z() - aSecondPoint.Z()) < Precision::Confusion();
+  
+  Standard_Integer aPreviewType = (int)aThinOnX + (int)aThinOnY + (int)aThinOnZ;
+
+  if (aPreviewType == 3) // thin box in all directions is a point
+  {
+    makeVertex (aFirstPoint);
+  }
+  else if (aPreviewType == 2) // thin box in two directions is a point
+  {
+    makeEdge (aFirstPoint, aSecondPoint);
+  }
+  // thin box in only one direction is a rectangular face
+  else if (aPreviewType == 1)
+  {
+    gp_Pnt aPnt1, aPnt2, aPnt3, aPnt4;
+    if (aThinOnX)
+    {
+      aPnt1 = gp_Pnt (aFirstPoint.X(), aFirstPoint.Y(), aFirstPoint.Z());
+      aPnt2 = gp_Pnt (aFirstPoint.X(), aSecondPoint.Y(), aFirstPoint.Z());
+      aPnt3 = gp_Pnt (aFirstPoint.X(), aSecondPoint.Y(), aSecondPoint.Z());
+      aPnt4 = gp_Pnt (aFirstPoint.X(), aFirstPoint.Y(), aSecondPoint.Z());
+    }
+    else if (aThinOnY)
+    {
+      aPnt1 = gp_Pnt (aFirstPoint.X(), aFirstPoint.Y(), aFirstPoint.Z());
+      aPnt2 = gp_Pnt (aSecondPoint.X(), aFirstPoint.Y(), aFirstPoint.Z());
+      aPnt3 = gp_Pnt (aSecondPoint.X(), aFirstPoint.Y(), aSecondPoint.Z());
+      aPnt4 = gp_Pnt (aFirstPoint.X(), aFirstPoint.Y(), aSecondPoint.Z());
+    }
+    else if (aThinOnZ)
+    {
+      aPnt1 = gp_Pnt (aFirstPoint.X(), aFirstPoint.Y(), aFirstPoint.Z());
+      aPnt2 = gp_Pnt (aSecondPoint.X(), aFirstPoint.Y(), aFirstPoint.Z());
+      aPnt3 = gp_Pnt (aSecondPoint.X(), aSecondPoint.Y(), aFirstPoint.Z());
+      aPnt4 = gp_Pnt (aFirstPoint.X(), aSecondPoint.Y(), aFirstPoint.Z());
+    }
+
+    makeRectangle (aPnt1, aPnt2, aPnt3, aPnt4);
+  }
+
+  if (!myShape.IsNull())
+  {
+    Done();
+    return;
+  }
+
+  // box is a valid shape
+  Solid();
+}
+
+//=======================================================================
+//function : makeVertex
+//purpose  :
+//=======================================================================
+void BRepPreviewAPI_MakeBox::makeVertex (const gp_Pnt& thePoint)
+{
+  myShape = BRepBuilderAPI_MakeVertex (thePoint);
+}
+
+//=======================================================================
+//function : makeEdge
+//purpose  :
+//=======================================================================
+void BRepPreviewAPI_MakeBox::makeEdge (const gp_Pnt& thePoint1, const gp_Pnt& thePoint2)
+{
+  myShape = BRepBuilderAPI_MakeEdge (thePoint1, thePoint2);
+}
+
+//=======================================================================
+//function : makeRectangle
+//purpose  :
+//=======================================================================
+void BRepPreviewAPI_MakeBox::makeRectangle (const gp_Pnt& thePnt1, const gp_Pnt& thePnt2,
+                                            const gp_Pnt& thePnt3, const gp_Pnt& thePnt4)
+{
+  TopoDS_Edge anEdge1 = BRepBuilderAPI_MakeEdge (thePnt1, thePnt2);
+  TopoDS_Edge anEdge2 = BRepBuilderAPI_MakeEdge (thePnt2, thePnt3);
+  TopoDS_Edge anEdge3 = BRepBuilderAPI_MakeEdge (thePnt3, thePnt4);
+  TopoDS_Edge anEdge4 = BRepBuilderAPI_MakeEdge (thePnt4, thePnt1);
+
+  BRepBuilderAPI_MakeWire aWire (anEdge1, anEdge2, anEdge3, anEdge4);
+  BRepBuilderAPI_MakeFace aFace (aWire);
+
+  myShape = aFace.Shape();
+}