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#include <ShapeCustom_ConvertToRevolution.ixx>
#include <Geom_ElementarySurface.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <BRepTools.hxx>
#include <TopoDS.hxx>
#include <Precision.hxx>
#include <BRep_TEdge.hxx>
#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
#include <BRep_GCurve.hxx>
#include <Geom_SphericalSurface.hxx>
#include <Geom_ToroidalSurface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_OffsetSurface.hxx>
#include <Geom_Circle.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Geom_Line.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
//=======================================================================
//function : ShapeCustom_ConvertToRevolution
//purpose :
//=======================================================================
ShapeCustom_ConvertToRevolution::ShapeCustom_ConvertToRevolution()
{
}
// Analyze surface: is it to be converted?
static Standard_Boolean IsToConvert (const Handle(Geom_Surface) &S,
Handle(Geom_ElementarySurface) &ES)
{
ES = Handle(Geom_ElementarySurface)::DownCast(S);
if ( ES.IsNull() ) {
if ( S->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ) {
Handle(Geom_RectangularTrimmedSurface) RTS =
Handle(Geom_RectangularTrimmedSurface)::DownCast ( S );
ES = Handle(Geom_ElementarySurface)::DownCast ( RTS->BasisSurface() );
}
else if ( S->IsKind(STANDARD_TYPE(Geom_OffsetSurface)) ) {
Handle(Geom_OffsetSurface) OS = Handle(Geom_OffsetSurface)::DownCast ( S );
ES = Handle(Geom_ElementarySurface)::DownCast ( OS->BasisSurface() );
}
if ( ES.IsNull() ) return Standard_False;
}
return ES->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ||
ES->IsKind(STANDARD_TYPE(Geom_ToroidalSurface)) ||
ES->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
ES->IsKind(STANDARD_TYPE(Geom_ConicalSurface));
}
//=======================================================================
//function : NewSurface
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToRevolution::NewSurface (const TopoDS_Face& F,
Handle(Geom_Surface)& S,
TopLoc_Location& L,
Standard_Real& Tol,
Standard_Boolean& RevWires,
Standard_Boolean& RevFace)
{
S = BRep_Tool::Surface(F,L);
Handle(Geom_ElementarySurface) ES;
if ( ! IsToConvert ( S, ES ) ) return Standard_False;
// remove location if it contains inversion
/*
gp_Trsf t = L.Transformation();
gp_Mat m = t.VectorialPart();
Standard_Boolean neg = t.IsNegative();
Standard_Boolean det = ( m.Determinant() <0 ? Standard_True : Standard_False );
if ( neg != det ) {
ES = Handle(Geom_ElementarySurface)::DownCast ( ES->Transformed(t) );
L.Identity();
}
*/
gp_Ax3 Ax3 = ES->Position();
gp_Pnt pos = Ax3.Location();
gp_Dir dir = Ax3.Direction();
gp_Dir X = Ax3.XDirection();
// create basis line to rotate
Handle(Geom_Curve) BasisCurve;
if ( ES->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ) {
Handle(Geom_SphericalSurface) SS = Handle(Geom_SphericalSurface)::DownCast(ES);
gp_Ax2 Ax2 ( pos, X ^ dir, X );
Handle(Geom_Circle) Circ = new Geom_Circle ( Ax2, SS->Radius() );
BasisCurve = new Geom_TrimmedCurve ( Circ, -PI/2., PI/2. );
}
else if ( ES->IsKind(STANDARD_TYPE(Geom_ToroidalSurface)) ) {
Handle(Geom_ToroidalSurface) TS = Handle(Geom_ToroidalSurface)::DownCast(ES);
gp_Ax2 Ax2 ( pos.XYZ() + X.XYZ() * TS->MajorRadius(), X ^ dir, X );
BasisCurve = new Geom_Circle ( Ax2, TS->MinorRadius() );
}
else if ( ES->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ) {
Handle(Geom_CylindricalSurface) CS = Handle(Geom_CylindricalSurface)::DownCast(ES);
gp_Ax1 Ax1 ( pos.XYZ() + X.XYZ() * CS->Radius(), dir );
BasisCurve = new Geom_Line ( Ax1 );
}
else if ( ES->IsKind(STANDARD_TYPE(Geom_ConicalSurface)) ) {
Handle(Geom_ConicalSurface) CS = Handle(Geom_ConicalSurface)::DownCast(ES);
gp_Dir N = dir.XYZ() + X.XYZ() * Tan ( CS->SemiAngle() );
gp_Ax1 Ax1 ( pos.XYZ() + X.XYZ() * CS->RefRadius(), N );
BasisCurve = new Geom_Line ( Ax1 );
}
// create revolution with proper U parametrization
gp_Ax1 Axis = Ax3.Axis();
// if the surface is indirect (taking into account locations), reverse dir
/*
gp_Trsf t = L.Transformation();
gp_Mat m = t.VectorialPart();
Standard_Boolean neg = t.IsNegative();
Standard_Boolean det = ( m.Determinant() <0 ? Standard_True : Standard_False );
Standard_Boolean isdir = Ax3.Direct();
if ( ( neg != det ) == isdir ) Axis.Reverse();
*/
if ( ! Ax3.Direct() ) Axis.Reverse();
Handle(Geom_SurfaceOfRevolution) Rev = new Geom_SurfaceOfRevolution ( BasisCurve, Axis );
// set resulting surface and restore trimming or offsetting if necessary
if ( ES == S ) S = Rev;
else {
if ( S->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ) {
Handle(Geom_RectangularTrimmedSurface) RTS =
Handle(Geom_RectangularTrimmedSurface)::DownCast ( S );
Standard_Real U1, U2, V1, V2;
RTS->Bounds ( U1, U2, V1, V2 );
S = new Geom_RectangularTrimmedSurface ( Rev, U1, U2, V1, V2 );
}
else if ( S->IsKind(STANDARD_TYPE(Geom_OffsetSurface)) ) {
Handle(Geom_OffsetSurface) OS = Handle(Geom_OffsetSurface)::DownCast ( S );
S = new Geom_OffsetSurface ( Rev, OS->Offset() );
}
else S = Rev;
}
Tol = BRep_Tool::Tolerance(F);
RevWires = Standard_False;
RevFace = Standard_False;
return Standard_True;
}
//=======================================================================
//function : NewCurve
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToRevolution::NewCurve (const TopoDS_Edge& E,
Handle(Geom_Curve)& C,
TopLoc_Location& L,
Standard_Real& Tol)
{
//:p5 abv 26 Feb 99: force copying of edge if any its pcurve will be replaced
Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&E.TShape());
// iterate on pcurves
BRep_ListIteratorOfListOfCurveRepresentation itcr(TE->Curves());
for ( ; itcr.More(); itcr.Next() ) {
Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itcr.Value());
if ( GC.IsNull() || ! GC->IsCurveOnSurface() ) continue;
Handle(Geom_Surface) S = GC->Surface();
Handle(Geom_ElementarySurface) ES;
if ( ! IsToConvert ( S, ES ) ) continue;
Standard_Real f, l;
C = BRep_Tool::Curve ( E, L, f, l );
if ( ! C.IsNull() ) C = Handle(Geom_Curve)::DownCast ( C->Copy() );
Tol = BRep_Tool::Tolerance ( E );
return Standard_True;
}
return Standard_False;
}
//=======================================================================
//function : NewPoint
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToRevolution::NewPoint (const TopoDS_Vertex& /*V*/,
gp_Pnt& /*P*/, Standard_Real& /*Tol*/)
{
// 3d points are never modified
return Standard_False;
}
//=======================================================================
//function : NewCurve2d
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToRevolution::NewCurve2d (const TopoDS_Edge& E,
const TopoDS_Face& F,
const TopoDS_Edge& NewE,
const TopoDS_Face& /*NewF*/,
Handle(Geom2d_Curve)& C,
Standard_Real& Tol)
{
TopLoc_Location L;
Handle(Geom_Surface) S = BRep_Tool::Surface(F,L);
Handle(Geom_ElementarySurface) ES;
// just copy pcurve if either its surface is changing or edge was copied
if ( ! IsToConvert ( S, ES ) && E.IsSame ( NewE ) ) return Standard_False;
Standard_Real f, l;
C = BRep_Tool::CurveOnSurface(E,F,f,l);
if ( ! C.IsNull() ) {
C = Handle(Geom2d_Curve)::DownCast ( C->Copy() );
// for spherical surface, surface of revolution since based on TrimmedCurve
// has V parametrisation shifted on 2PI; translate pcurve accordingly
if ( ! ES.IsNull() && ES->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ) {
gp_Vec2d shift ( 0., 2*PI );
C->Translate ( shift );
}
}
Tol = BRep_Tool::Tolerance ( E );
return Standard_True;
}
//=======================================================================
//function : NewParameter
//purpose :
//=======================================================================
Standard_Boolean ShapeCustom_ConvertToRevolution::NewParameter (const TopoDS_Vertex& /*V*/,
const TopoDS_Edge& /*E*/,
Standard_Real& /*P*/,
Standard_Real& /*Tol*/)
{
return Standard_False;
}
//=======================================================================
//function : Continuity
//purpose :
//=======================================================================
GeomAbs_Shape ShapeCustom_ConvertToRevolution::Continuity (const TopoDS_Edge& E,
const TopoDS_Face& F1,
const TopoDS_Face& F2,
const TopoDS_Edge& /*NewE*/,
const TopoDS_Face& /*NewF1*/,
const TopoDS_Face& /*NewF2*/)
{
return BRep_Tool::Continuity(E,F1,F2);
}
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