+// Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
#include <Standard_Stream.hxx>
TopoDS_Shape aShape;
if (aType == CIRCLE_PNT_VEC_R) {
- Handle(GEOM_Function) aRefPoint = aCI.GetCenter();
+ // Center
+ gp_Pnt aP = gp::Origin();
+ Handle(GEOM_Function) aRefPoint = aCI.GetCenter();
+ if (!aRefPoint.IsNull()) {
+ TopoDS_Shape aShapePnt = aRefPoint->GetValue();
+ if (aShapePnt.ShapeType() != TopAbs_VERTEX) {
+ Standard_ConstructionError::Raise
+ ("Circle creation aborted: invalid center argument, must be a point");
+ }
+ aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
+ }
+ // Normal
+ gp_Vec aV = gp::DZ();
Handle(GEOM_Function) aRefVector = aCI.GetVector();
- TopoDS_Shape aShapePnt = aRefPoint->GetValue();
- TopoDS_Shape aShapeVec = aRefVector->GetValue();
- if (aShapePnt.ShapeType() == TopAbs_VERTEX &&
- aShapeVec.ShapeType() == TopAbs_EDGE) {
- gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
+ if (!aRefVector.IsNull()) {
+ TopoDS_Shape aShapeVec = aRefVector->GetValue();
+ if (aShapeVec.ShapeType() != TopAbs_EDGE) {
+ Standard_ConstructionError::Raise
+ ("Circle creation aborted: invalid vector argument, must be a vector or an edge");
+ }
TopoDS_Edge anE = TopoDS::Edge(aShapeVec);
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_Ax2 anAxes (aP, aV);
- gp_Circ aCirc (anAxes, aCI.GetRadius());
- aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
+ aV = gp_Vec(BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));
+ if (aV.Magnitude() < gp::Resolution()) {
+ Standard_ConstructionError::Raise
+ ("Circle creation aborted: vector of zero length is given");
+ }
}
}
+ // Axes
+ gp_Ax2 anAxes (aP, aV);
+ // Radius
+ double anR = aCI.GetRadius();
+ char aMsg[] = "Circle creation aborted: radius value less than 1e-07 is not acceptable";
+ if (anR < Precision::Confusion())
+ Standard_ConstructionError::Raise(aMsg);
+ // Circle
+ gp_Circ aCirc (anAxes, anR);
+ aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
+ }
+ else if (aType == CIRCLE_CENTER_TWO_PNT) {
+ Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
+ Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
+ Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
+ TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
+ TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
+ TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
+ if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
+ aShapePnt2.ShapeType() == TopAbs_VERTEX &&
+ aShapePnt3.ShapeType() == TopAbs_VERTEX)
+ {
+ gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
+ gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
+ gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
+
+ if (aP1.Distance(aP2) < gp::Resolution() ||
+ aP1.Distance(aP3) < gp::Resolution() ||
+ aP2.Distance(aP3) < gp::Resolution())
+ Standard_ConstructionError::Raise("Circle creation aborted: coincident points given");
+
+ if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
+ Standard_ConstructionError::Raise("Circle creation aborted: points lay on one line");
+
+ double x, y, z, x1, y1, z1, x2, y2, z2, dx, dy, dz, dx2, dy2, dz2, dx3, dy3, dz3, aRadius;
+ //Calculations for Radius
+ x = aP1.X(); y = aP1.Y(); z = aP1.Z();
+ x1 = aP2.X(); y1 = aP2.Y(); z1 = aP2.Z();
+ dx = x1 - x;
+ dy = y1 - y;
+ dz = z1 - z;
+ aRadius = sqrt(dx*dx + dy*dy + dz*dz);
+ //Calculations for Plane Vector
+ x2 = aP3.X(); y2 = aP3.Y(); z2 = aP3.Z();
+ dx2 = x2 - x; dy2 = y2 - y; dz2 = z2 - z;
+ dx3 = ((dy*dz2) - (dy2*dz))/100;
+ dy3 = ((dx2*dz) - (dx*dz2))/100;
+ dz3 = ((dx*dy2) - (dx2*dy))/100;
+ //Make Plane Vector
+ gp_Dir aDir ( dx3, dy3, dz3 );
+ //Make Circle
+ gp_Ax2 anAxes (aP1, aDir);
+ gp_Circ aCirc (anAxes, aRadius);
+ aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
+ }
}
else if (aType == CIRCLE_THREE_PNT) {
Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
Standard_ConstructionError::Raise("Circle creation aborted: points lay on one line");
Handle(Geom_Circle) aCirc = GC_MakeCircle(aP1, aP2, aP3).Value();
aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
- }
+ }
}
else {
}
static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_CircleDriver",
- sizeof(GEOMImpl_CircleDriver),
- 1,
- (Standard_Address)_Ancestors,
- (Standard_Address)NULL);
+ sizeof(GEOMImpl_CircleDriver),
+ 1,
+ (Standard_Address)_Ancestors,
+ (Standard_Address)NULL);
return _aType;
}
