0024665: A sample for advanced function mechanism

PRO file is added + a description of how to generate the Visual Studio projects and compile. In addition, the sample folder is renamed to FuncDemo. Adding 64 bit configuration to VC projects
2025-08-09 13:22:24 +03:00 · 2016-02-10 08:04:45 +03:00
parent a7d4dd9489
commit aff5997de8
41 changed files with 3099 additions and 0 deletions
--- a/samples/qt/FuncDemo/src/CylinderDriver.cpp
+++ b/samples/qt/FuncDemo/src/CylinderDriver.cpp
@@ -0,0 +1,102 @@
+// CylinderDriver.cpp: implementation of the CylinderDriver class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#include "CylinderDriver.h"
+
+#include <Standard_GUID.hxx>
+#include <TDF_Reference.hxx>
+#include <TNaming_Builder.hxx>
+#include <TNaming_NamedShape.hxx>
+#include <TDataStd_RealArray.hxx>
+
+#include <TopoDS.hxx>
+#include <ElCLib.hxx>
+#include <gp_Circ.hxx>
+#include <Precision.hxx>
+#include <TopoDS_Face.hxx>
+#include <TopoDS_Edge.hxx>
+#include <TopExp_Explorer.hxx>
+#include <BRepAdaptor_Curve.hxx>
+#include <BRepBuilderAPI_MakeEdge.hxx>
+#include <BRepBuilderAPI_MakeWire.hxx>
+#include <BRepBuilderAPI_MakeFace.hxx>
+#include <BRepPrimAPI_MakeCylinder.hxx>
+
+IMPLEMENT_STANDARD_HANDLE(CylinderDriver,BaseDriver)
+IMPLEMENT_STANDARD_RTTIEXT(CylinderDriver,BaseDriver)
+
+// ID of the function driver
+const Standard_GUID& CylinderDriver::GetID()
+{
+    static const Standard_GUID id("9CE1FCDA-C8EA-4b09-B1C4-021FCD44F3F3");
+    return id;
+}
+
+// Constructor
+CylinderDriver::CylinderDriver()
+{
+
+}
+
+// Execution.
+Standard_Integer CylinderDriver::Execute(Handle(TFunction_Logbook)& log) const
+{
+    // Usual check...
+    if (Label().IsNull())
+        return 1;
+
+    // Take the arguments (radius, angle, height)
+    Handle(TDataStd_RealArray) arr;
+    if (!Label().FindAttribute(TDataStd_RealArray::GetID(), arr))
+        return 2;
+    double radius = arr->Value(1);
+    double angle = arr->Value(2);
+    double height = arr->Value(3);
+    if (radius < Precision::Confusion() || height < Precision::Confusion())
+        return 3;
+
+    // Take the arguments (top face)
+    Handle(TDF_Reference) ref;
+    if (!Label().FindChild(1).FindChild(1).FindAttribute(TDF_Reference::GetID(), ref))
+        return 4;
+    Handle(TNaming_NamedShape) n;
+    if (!ref->Get().FindAttribute(TNaming_NamedShape::GetID(), n) || n->IsEmpty())
+        return 5;
+    TopoDS_Face F = TopoDS::Face(n->Get());
+
+    // Take the circle
+    TopExp_Explorer expl(F, TopAbs_EDGE);
+    if (!expl.More())
+        return 6;
+    TopoDS_Edge E = TopoDS::Edge(expl.Current());
+    BRepAdaptor_Curve A(E);
+    gp_Circ C = A.Circle();
+
+    // Center of the cylinder
+    gp_Pnt p = ElCLib::Value(angle * M_PI / 180.0, C);
+    gp_Vec v(p, C.Location());
+    v.Normalize();
+    p.Translate(radius * v);
+
+    // Make the result
+    BRepPrimAPI_MakeCylinder mkCylinder(gp_Ax2(p, gp::DZ()), radius, height);
+    mkCylinder.Build();
+    if (!mkCylinder.IsDone())
+        return 7;
+    TopoDS_Shape Cyl = mkCylinder.Shape();
+
+    // Make the top face of the cylinder for next functions
+    gp_Circ Ctop(gp_Ax2(p.Translated(height * gp::DZ()), gp::DZ()), radius);
+    TopoDS_Edge Etop = BRepBuilderAPI_MakeEdge(Ctop);
+    TopoDS_Wire Wtop = BRepBuilderAPI_MakeWire(Etop);
+    TopoDS_Face Ftop = BRepBuilderAPI_MakeFace(Wtop);
+
+    // Set the result
+    TNaming_Builder B(Label());
+    B.Generated(Cyl);
+    TNaming_Builder B2(Label().FindChild(3));
+    B2.Generated(Ftop);
+
+    return BaseDriver::Execute(log);
+}