bool IfcGeom::convert(const Ifc2x3::IfcAxis2Placement3D::ptr l, gp_Trsf& trsf) {
IN_CACHE(IfcAxis2Placement3D,l,gp_Trsf,trsf)
gp_Pnt o;gp_Dir axis = gp_Dir(0,0,1);gp_Dir refDirection;
IfcGeom::convert(l->Location(),o);
bool hasRef = l->hasRefDirection();
if ( l->hasAxis() ) IfcGeom::convert(l->Axis(),axis);
if ( hasRef ) IfcGeom::convert(l->RefDirection(),refDirection);
gp_Ax3 ax3;
if ( hasRef ) ax3 = gp_Ax3(o,axis,refDirection);
else ax3 = gp_Ax3(o,axis);
trsf.SetTransformation(ax3, gp_Ax3(gp_Pnt(),gp_Dir(0,0,1),gp_Dir(1,0,0)));
CACHE(IfcAxis2Placement3D,l,trsf)
return true;
}
bool IfcGeom::convert(const Ifc2x3::IfcPlane::ptr pln, gp_Pln& plane) {
IN_CACHE(IfcPlane,pln,gp_Pln,plane)
Ifc2x3::IfcAxis2Placement3D::ptr l = pln->Position();
gp_Pnt o;gp_Dir axis = gp_Dir(0,0,1);gp_Dir refDirection;
IfcGeom::convert(l->Location(),o);
bool hasRef = l->hasRefDirection();
if ( l->hasAxis() ) IfcGeom::convert(l->Axis(),axis);
if ( hasRef ) IfcGeom::convert(l->RefDirection(),refDirection);
gp_Ax3 ax3;
if ( hasRef ) ax3 = gp_Ax3(o,axis,refDirection);
else ax3 = gp_Ax3(o,axis);
plane = gp_Pln(ax3);
CACHE(IfcPlane,pln,plane)
return true;
}
TopoDS_Wire CCPACSControlSurfaceDeviceAirfoil::GetWire(CTiglControlSurfaceBorderCoordinateSystem& coords)
{
CCPACSWingProfile& profile =_config->GetWingProfile(_airfoilUID);
TopoDS_Wire w = profile.GetWire();
// scale
CTiglTransformation scale;
scale.AddScaling(coords.getLe().Distance(coords.getTe()), 1, _scalZ);
// bring the wire into the coordinate system of
// the airfoil by swapping z with y
gp_Trsf trafo;
trafo.SetTransformation(gp_Ax3(gp_Pnt(0,0,0), gp_Vec(0,-1,0), gp_Vec(1,0,0)));
CTiglTransformation flipZY(trafo);
// put the airfoil to the correct place
CTiglTransformation position(coords.globalTransform());
// compute the total transform
CTiglTransformation total;
total.PreMultiply(scale);
total.PreMultiply(flipZY);
total.PreMultiply(position);
w = TopoDS::Wire(total.Transform(w));
return w;
}
//=======================================================================
//function : GetPosition
//purpose :
//=======================================================================
gp_Ax3 GEOMUtils::GetPosition (const TopoDS_Shape& theShape)
{
gp_Ax3 aResult;
if (theShape.IsNull())
return aResult;
// Axes
aResult.Transform(theShape.Location().Transformation());
if (theShape.ShapeType() == TopAbs_FACE) {
Handle(Geom_Surface) aGS = BRep_Tool::Surface(TopoDS::Face(theShape));
if (!aGS.IsNull() && aGS->IsKind(STANDARD_TYPE(Geom_Plane))) {
Handle(Geom_Plane) aGPlane = Handle(Geom_Plane)::DownCast(aGS);
gp_Pln aPln = aGPlane->Pln();
aResult = aPln.Position();
// In case of reverse orinetation of the face invert the plane normal
// (the face's normal does not mathc the plane's normal in this case)
if(theShape.Orientation() == TopAbs_REVERSED)
{
gp_Dir Vx = aResult.XDirection();
gp_Dir N = aResult.Direction().Mirrored(Vx);
gp_Pnt P = aResult.Location();
aResult = gp_Ax3(P, N, Vx);
}
}
}
// Origin
gp_Pnt aPnt;
TopAbs_ShapeEnum aShType = theShape.ShapeType();
if (aShType == TopAbs_VERTEX) {
aPnt = BRep_Tool::Pnt(TopoDS::Vertex(theShape));
}
else {
if (aShType == TopAbs_COMPOUND) {
aShType = GetTypeOfSimplePart(theShape);
}
GProp_GProps aSystem;
if (aShType == TopAbs_EDGE || aShType == TopAbs_WIRE)
BRepGProp::LinearProperties(theShape, aSystem);
else if (aShType == TopAbs_FACE || aShType == TopAbs_SHELL)
BRepGProp::SurfaceProperties(theShape, aSystem);
else
BRepGProp::VolumeProperties(theShape, aSystem);
aPnt = aSystem.CentreOfMass();
}
aResult.SetLocation(aPnt);
return aResult;
}
int OCCEdge::createHelix(double pitch, double height, double radius, double angle, bool leftHanded)
{
try {
gp_Ax2 cylAx2(gp_Pnt(0.0,0.0,0.0) , gp::DZ());
if (radius <= Precision::Confusion()) {
StdFail_NotDone::Raise("radius to small");
}
Handle_Geom_Surface surf;
if (angle <= 0.0) {
surf = new Geom_CylindricalSurface(cylAx2, radius);
} else {
surf = new Geom_ConicalSurface(gp_Ax3(cylAx2), angle, radius);
}
gp_Pnt2d aPnt(0, 0);
gp_Dir2d aDir(2. * M_PI, pitch);
if (leftHanded) {
aPnt.SetCoord(2. * M_PI, 0.0);
aDir.SetCoord(-2. * M_PI, pitch);
}
gp_Ax2d aAx2d(aPnt, aDir);
Handle(Geom2d_Line) line = new Geom2d_Line(aAx2d);
gp_Pnt2d pnt_beg = line->Value(0);
gp_Pnt2d pnt_end = line->Value(sqrt(4.0*M_PI*M_PI+pitch*pitch)*(height/pitch));
const Handle(Geom2d_TrimmedCurve)& segm = GCE2d_MakeSegment(pnt_beg , pnt_end);
this->setShape(BRepBuilderAPI_MakeEdge(segm , surf));
BRepLib::BuildCurves3d(edge);
} catch(Standard_Failure &err) {
Handle_Standard_Failure e = Standard_Failure::Caught();
const Standard_CString msg = e->GetMessageString();
if (msg != NULL && strlen(msg) > 1) {
setErrorMessage(msg);
} else {
setErrorMessage("Failed to create helix");
}
return 0;
}
return 1;
}
//=======================================================================
//function : Execute
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_PlaneDriver::Execute(TFunction_Logbook& log) const
{
if (Label().IsNull()) return 0;
Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
GEOMImpl_IPlane aPI (aFunction);
Standard_Integer aType = aFunction->GetType();
TopoDS_Shape aShape;
double aSize = aPI.GetSize() / 2.0;
if (aType == PLANE_PNT_VEC) {
Handle(GEOM_Function) aRefPnt = aPI.GetPoint();
Handle(GEOM_Function) aRefVec = aPI.GetVector();
TopoDS_Shape aShape1 = aRefPnt->GetValue();
TopoDS_Shape aShape2 = aRefVec->GetValue();
if (aShape1.ShapeType() != TopAbs_VERTEX ||
aShape2.ShapeType() != TopAbs_EDGE) return 0;
gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aShape1));
TopoDS_Edge anE = TopoDS::Edge(aShape2);
TopoDS_Vertex V1, V2;
TopExp::Vertices(anE, V1, V2, Standard_True);
if (!V1.IsNull() && !V2.IsNull()) {
gp_Vec aV (BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));
gp_Pln aPln (aP, aV);
aShape = BRepBuilderAPI_MakeFace(aPln, -aSize, +aSize, -aSize, +aSize).Shape();
}
} else if (aType == PLANE_THREE_PNT) {
Handle(GEOM_Function) aRefPnt1 = aPI.GetPoint1();
Handle(GEOM_Function) aRefPnt2 = aPI.GetPoint2();
Handle(GEOM_Function) aRefPnt3 = aPI.GetPoint3();
TopoDS_Shape aShape1 = aRefPnt1->GetValue();
TopoDS_Shape aShape2 = aRefPnt2->GetValue();
TopoDS_Shape aShape3 = aRefPnt3->GetValue();
if (aShape1.ShapeType() != TopAbs_VERTEX ||
aShape2.ShapeType() != TopAbs_VERTEX ||
aShape3.ShapeType() != TopAbs_VERTEX) return 0;
gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShape1));
gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShape2));
gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShape3));
if (aP1.Distance(aP2) < gp::Resolution() ||
aP1.Distance(aP3) < gp::Resolution() ||
aP2.Distance(aP3) < gp::Resolution())
Standard_ConstructionError::Raise("Plane creation aborted: coincident points given");
if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
Standard_ConstructionError::Raise("Plane creation aborted: points lay on one line");
GC_MakePlane aMakePlane (aP1, aP2, aP3);
aShape = BRepBuilderAPI_MakeFace(aMakePlane, -aSize, +aSize, -aSize, +aSize).Shape();
} else if (aType == PLANE_FACE) {
Handle(GEOM_Function) aRef = aPI.GetFace();
TopoDS_Shape aRefShape = aRef->GetValue();
//if (aRefShape.ShapeType() != TopAbs_FACE) return 0;
//Handle(Geom_Surface) aGS = BRep_Tool::Surface(TopoDS::Face(aRefShape));
//if (!aGS->IsKind(STANDARD_TYPE(Geom_Plane))) {
// Standard_TypeMismatch::Raise("Plane creation aborted: non-planar face given as argument");
//}
//aShape = BRepBuilderAPI_MakeFace(aGS, -aSize, +aSize, -aSize, +aSize).Shape();
gp_Ax3 anAx3 = GEOMImpl_IMeasureOperations::GetPosition(aRefShape);
gp_Pln aPln (anAx3);
aShape = BRepBuilderAPI_MakeFace(aPln, -aSize, +aSize, -aSize, +aSize).Shape();
}
else if (aType == PLANE_TANGENT_FACE)
{
Handle(GEOM_Function) aRefFace = aPI.GetFace();
TopoDS_Shape aShape1 = aRefFace->GetValue();
if(aShape1.IsNull())
Standard_TypeMismatch::Raise("Plane was not created.Basis face was not specified");
TopoDS_Face aFace = TopoDS::Face(aShape1);
Standard_Real aKoefU = aPI.GetParameterU();
Standard_Real aKoefV = aPI.GetParameterV();
Standard_Real aUmin,aUmax,aVmin,aVmax;
ShapeAnalysis::GetFaceUVBounds(aFace,aUmin,aUmax,aVmin,aVmax);
Standard_Real aDeltaU = aUmax - aUmin;
Standard_Real aDeltaV = aVmax - aVmin;
Standard_Real aParamU = aUmin + aDeltaU*aKoefU;
Standard_Real aParamV = aVmin + aDeltaV*aKoefV;
Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
if(aSurf.IsNull())
Standard_TypeMismatch::Raise("Plane was not created.Base surface is absent");
gp_Vec aVecU,aVecV;
gp_Pnt aPLoc;
aSurf->D1(aParamU,aParamV,aPLoc,aVecU,aVecV);
BRepTopAdaptor_FClass2d clas(aFace,Precision::PConfusion());
TopAbs_State stOut= clas.PerformInfinitePoint();
gp_Pnt2d aP2d(aParamU,aParamV);
TopAbs_State st= clas.Perform(aP2d);
if(st == stOut)
Standard_TypeMismatch::Raise("Plane was not created.Point lies outside the face");
gp_Vec aNorm = aVecU^aVecV;
gp_Ax3 anAxis(aPLoc,gp_Dir(aNorm),gp_Dir(aVecU));
gp_Pln aPlane(anAxis);
BRepBuilderAPI_MakeFace aTool(aPlane, -aSize, +aSize, -aSize, +aSize);
if(aTool.IsDone())
aShape = aTool.Shape();
}
else if (aType == PLANE_2_VEC) {
Handle(GEOM_Function) aRefVec1 = aPI.GetVector1();
Handle(GEOM_Function) aRefVec2 = aPI.GetVector2();
TopoDS_Shape aShape1 = aRefVec1->GetValue();
TopoDS_Shape aShape2 = aRefVec2->GetValue();
if (aShape1.ShapeType() != TopAbs_EDGE ||
aShape2.ShapeType() != TopAbs_EDGE) return 0;
TopoDS_Edge aVectX = TopoDS::Edge(aShape1);
TopoDS_Edge aVectZ = TopoDS::Edge(aShape2);
TopoDS_Vertex VX1, VX2, VZ1, VZ2;
TopExp::Vertices( aVectX, VX1, VX2, Standard_True );
TopExp::Vertices( aVectZ, VZ1, VZ2, Standard_True );
gp_Vec aVX = gp_Vec( BRep_Tool::Pnt( VX1 ), BRep_Tool::Pnt( VX2 ) );
gp_Vec aVZ = gp_Vec( BRep_Tool::Pnt( VZ1 ), BRep_Tool::Pnt( VZ2 ) );
if ( aVX.Magnitude() < Precision::Confusion() || aVZ.Magnitude() < Precision::Confusion())
Standard_TypeMismatch::Raise("Invalid vector selected");
gp_Dir aDirX = gp_Dir( aVX.X(), aVX.Y(), aVX.Z() );
gp_Dir aDirZ = gp_Dir( aVZ.X(), aVZ.Y(), aVZ.Z() );
if ( aDirX.IsParallel( aDirZ, Precision::Angular() ) )
Standard_TypeMismatch::Raise("Parallel vectors selected");
gp_Ax3 aPlane = gp_Ax3( BRep_Tool::Pnt( VX1 ), aDirZ, aDirX );
BRepBuilderAPI_MakeFace aTool(aPlane, -aSize, +aSize, -aSize, +aSize);
if(aTool.IsDone())
aShape = aTool.Shape();
}
else if (aType == PLANE_LCS) {
Handle(GEOM_Function) aRef = aPI.GetLCS();
double anOrientation = aPI.GetOrientation();
gp_Ax3 anAx3;
if (aRef.IsNull()) {
gp_Ax2 anAx2 = gp::XOY();
anAx3 = gp_Ax3( anAx2 );
} else {
TopoDS_Shape aRefShape = aRef->GetValue();
if (aRefShape.ShapeType() != TopAbs_FACE)
return 0;
anAx3 = GEOMImpl_IMeasureOperations::GetPosition(aRefShape);
}
if ( anOrientation == 2)
anAx3 = gp_Ax3(anAx3.Location(), anAx3.XDirection(), anAx3.YDirection() );
else if ( anOrientation == 3 )
anAx3 = gp_Ax3(anAx3.Location(), anAx3.YDirection(), anAx3.XDirection() );
gp_Pln aPln(anAx3);
aShape = BRepBuilderAPI_MakeFace(aPln, -aSize, +aSize, -aSize, +aSize).Shape();
}
else {
}
if (aShape.IsNull()) return 0;
aFunction->SetValue(aShape);
log.SetTouched(Label());
return 1;
}
bool IfcGeom::Kernel::convert(const IfcSchema::IfcSurfaceCurveSweptAreaSolid* l, TopoDS_Shape& shape) {
gp_Trsf directrix, position;
TopoDS_Shape face;
TopoDS_Wire wire, section;
if (!l->ReferenceSurface()->is(IfcSchema::Type::IfcPlane)) {
Logger::Message(Logger::LOG_WARNING, "Reference surface not supported", l->ReferenceSurface()->entity);
return false;
}
if (!IfcGeom::Kernel::convert(l->Position(), position) ||
!convert_face(l->SweptArea(), face) ||
!convert_wire(l->Directrix(), wire) ) {
return false;
}
gp_Pln pln;
gp_Pnt directrix_origin;
gp_Vec directrix_tangent;
bool directrix_on_plane = true;
IfcGeom::Kernel::convert((IfcSchema::IfcPlane*) l->ReferenceSurface(), pln);
// As per Informal propositions 2: The Directrix shall lie on the ReferenceSurface.
// This is not always the case with the test files in the repository. I am not sure
// how to deal with this and whether my interpretation of the propositions is
// correct. However, if it has been asserted that the vertices of the directrix do
// not conform to the ReferenceSurface, the ReferenceSurface is ignored.
{
for (TopExp_Explorer exp(wire, TopAbs_VERTEX); exp.More(); exp.Next()) {
if (pln.Distance(BRep_Tool::Pnt(TopoDS::Vertex(exp.Current()))) > ALMOST_ZERO) {
directrix_on_plane = false;
Logger::Message(Logger::LOG_WARNING, "The Directrix does not lie on the ReferenceSurface", l->entity);
break;
}
}
}
{
TopExp_Explorer exp(wire, TopAbs_EDGE);
TopoDS_Edge edge = TopoDS::Edge(exp.Current());
double u0, u1;
Handle(Geom_Curve) crv = BRep_Tool::Curve(edge, u0, u1);
crv->D1(u0, directrix_origin, directrix_tangent);
}
if (pln.Axis().Direction().IsNormal(directrix_tangent, Precision::Approximation()) && directrix_on_plane) {
directrix.SetTransformation(gp_Ax3(directrix_origin, directrix_tangent, pln.Axis().Direction()), gp::XOY());
} else {
directrix.SetTransformation(gp_Ax3(directrix_origin, directrix_tangent), gp::XOY());
}
face = BRepBuilderAPI_Transform(face, directrix);
// NB: Note that StartParam and EndParam param are ignored and the assumption is
// made that the parametric range over which to be swept matches the IfcCurve in
// its entirety.
BRepOffsetAPI_MakePipeShell builder(wire);
{ TopExp_Explorer exp(face, TopAbs_WIRE);
section = TopoDS::Wire(exp.Current());
}
builder.Add(section);
builder.SetTransitionMode(BRepBuilderAPI_RightCorner);
if (directrix_on_plane) {
builder.SetMode(pln.Axis().Direction());
}
builder.Build();
builder.MakeSolid();
shape = builder.Shape();
shape.Move(position);
return true;
}
