1 // Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 #include <Standard_Stream.hxx>
24 #include <GEOMImpl_SplineDriver.hxx>
25 #include <GEOMImpl_ISpline.hxx>
26 #include <GEOMImpl_Types.hxx>
27 #include <GEOM_Function.hxx>
29 #include <BRepBuilderAPI_MakeEdge.hxx>
30 #include <BRep_Tool.hxx>
35 #include <TopoDS_Shape.hxx>
36 #include <TopoDS_Edge.hxx>
37 #include <TopoDS_Vertex.hxx>
39 #include <Geom_BezierCurve.hxx>
40 //#include <GeomAPI_PointsToBSpline.hxx>
41 #include <GeomAPI_Interpolate.hxx>
45 #include <gp_Circ.hxx>
46 #include <Precision.hxx>
47 #include <TColgp_Array1OfPnt.hxx>
48 #include <TColgp_HArray1OfPnt.hxx>
50 //=======================================================================
53 //=======================================================================
54 const Standard_GUID& GEOMImpl_SplineDriver::GetID()
56 static Standard_GUID aSplineDriver("FF1BBB33-5D14-4df2-980B-3A668264EA16");
61 //=======================================================================
62 //function : GEOMImpl_SplineDriver
64 //=======================================================================
65 GEOMImpl_SplineDriver::GEOMImpl_SplineDriver()
69 //=======================================================================
72 //=======================================================================
73 Standard_Integer GEOMImpl_SplineDriver::Execute(TFunction_Logbook& log) const
75 if (Label().IsNull()) return 0;
76 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
78 GEOMImpl_ISpline aCI (aFunction);
79 Standard_Integer aType = aFunction->GetType();
83 if (aType == SPLINE_BEZIER || aType == SPLINE_INTERPOLATION) {
84 int ind, aLen = aCI.GetLength();
85 if (aLen < 2) return 0;
86 Standard_Boolean isSeveral = Standard_False;
89 if (aType == SPLINE_BEZIER && aCI.GetIsClosed()) {
90 Handle(GEOM_Function) aFPoint = aCI.GetPoint(1);
91 TopoDS_Shape aFirstPnt = aFPoint->GetValue();
92 TopoDS_Vertex aV1 = TopoDS::Vertex(aFirstPnt);
94 Handle(GEOM_Function) aLPoint = aCI.GetPoint(aLen);
95 TopoDS_Shape aLastPnt = aLPoint->GetValue();
96 TopoDS_Vertex aV2 = TopoDS::Vertex(aLastPnt);
98 if (!aV1.IsNull() && !aV2.IsNull() && !aV1.IsSame(aV2)) {
102 TColgp_Array1OfPnt CurvePoints (1, aRealLen);
103 for (ind = 1; ind <= aLen; ind++) {
104 Handle(GEOM_Function) aRefPoint = aCI.GetPoint(ind);
105 TopoDS_Shape aShapePnt = aRefPoint->GetValue();
106 if (aShapePnt.ShapeType() == TopAbs_VERTEX) {
107 gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
108 if (!isSeveral && ind > 1) {
109 if (aP.Distance(aPrevP) > Precision::Confusion()) {
110 isSeveral = Standard_True;
113 CurvePoints.SetValue(ind, aP);
117 if (aType == SPLINE_BEZIER) {
119 Standard_ConstructionError::Raise("Points for Bezier Curve are too close");
121 if (aRealLen > aLen) { // set last point equal to first for the closed curve
122 CurvePoints.SetValue(aRealLen, CurvePoints.Value(1));
124 Handle(Geom_BezierCurve) GBC = new Geom_BezierCurve(CurvePoints);
125 aShape = BRepBuilderAPI_MakeEdge(GBC).Edge();
127 //GeomAPI_PointsToBSpline GBC (CurvePoints);
128 //aShape = BRepBuilderAPI_MakeEdge(GBC).Edge();
130 Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt(1, aLen);
132 if (aCI.GetDoReordering()) {
133 for (int curInd = 1; curInd < aLen - 1; curInd++) {
134 gp_Pnt curPnt = CurvePoints.Value(curInd);
136 double nearDist = RealLast();
137 for (ind = curInd + 1; ind <= aLen; ind++) {
138 double dist = curPnt.SquareDistance(CurvePoints.Value(ind));
139 if (dist < nearDist && (nearDist - dist) > Precision::Confusion()) {
144 if (nearInd > 0 && nearInd != curInd + 1) {
145 // Keep given order of points to use it in case of equidistant candidates
148 // o o o c o->o->o->o->n o o
150 // curInd curInd+1 nearInd
151 gp_Pnt nearPnt = CurvePoints.Value(nearInd);
152 for (ind = nearInd; ind > curInd + 1; ind--) {
153 CurvePoints.SetValue(ind, CurvePoints.Value(ind - 1));
155 CurvePoints.SetValue(curInd + 1, nearPnt);
158 for (ind = 1; ind <= aLen; ind++) {
159 aHCurvePoints->SetValue(ind, CurvePoints.Value(ind));
163 for (ind = 1; ind <= aLen; ind++) {
164 aHCurvePoints->SetValue(ind, CurvePoints.Value(ind));
168 bool isClosed = aCI.GetIsClosed();
169 GeomAPI_Interpolate GBC (aHCurvePoints, isClosed, gp::Resolution());
172 aShape = BRepBuilderAPI_MakeEdge(GBC.Curve()).Edge();
180 if (aShape.IsNull()) return 0;
182 aFunction->SetValue(aShape);
184 log.SetTouched(Label());
190 //=======================================================================
191 //function : GEOMImpl_SplineDriver_Type_
193 //=======================================================================
194 Standard_EXPORT Handle_Standard_Type& GEOMImpl_SplineDriver_Type_()
197 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
198 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
199 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
200 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
201 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
202 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
205 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
206 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_SplineDriver",
207 sizeof(GEOMImpl_SplineDriver),
209 (Standard_Address)_Ancestors,
210 (Standard_Address)NULL);
215 //=======================================================================
216 //function : DownCast
218 //=======================================================================
219 const Handle(GEOMImpl_SplineDriver) Handle(GEOMImpl_SplineDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
221 Handle(GEOMImpl_SplineDriver) _anOtherObject;
223 if (!AnObject.IsNull()) {
224 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_SplineDriver))) {
225 _anOtherObject = Handle(GEOMImpl_SplineDriver)((Handle(GEOMImpl_SplineDriver)&)AnObject);
229 return _anOtherObject ;