2 #include <HYDROData_DTM.h>
3 #include <HYDROData_Profile.h>
5 #include <Geom2d_BSplineCurve.hxx>
6 #include <Geom2dAPI_Interpolate.hxx>
7 #include <TColgp_HArray1OfPnt2d.hxx>
8 #include <TColgp_Array1OfVec2d.hxx>
9 #include <TColStd_HArray1OfBoolean.hxx>
11 #include <TopoDS_Edge.hxx>
12 #include <TopoDS_Wire.hxx>
13 #include <TopExp_Explorer.hxx>
14 #include <BRep_Tool.hxx>
16 #include <Geom_Line.hxx>
17 #include <Geom2d_Line.hxx>
18 #include <Geom2d_TrimmedCurve.hxx>
19 #include <Geom_BSplineCurve.hxx>
20 #include <Geom2d_BSplineCurve.hxx>
21 #include <GeomAPI_Interpolate.hxx>
22 #include <TColStd_Array1OfReal.hxx>
23 #include <TColStd_Array1OfInteger.hxx>
24 #include <TColgp_Array1OfPnt.hxx>
25 #include <TColgp_Array1OfVec.hxx>
26 #include <TColgp_HArray1OfPnt.hxx>
27 #include <Geom2dAPI_InterCurveCurve.hxx>
28 #include <Geom2dAPI_ProjectPointOnCurve.hxx>
29 #include <Geom2dAdaptor_Curve.hxx>
30 #include <GCPnts_AbscissaPoint.hxx>
31 #include <BRepBuilderAPI_MakeEdge.hxx>
34 #include <BRepLib_MakeEdge.hxx>
35 #include <BRepLib_MakeWire.hxx>
36 #include <BRep_Builder.hxx>
37 #include <GeomProjLib.hxx>
38 #include <Geom_TrimmedCurve.hxx>
39 #include <BRepTools_WireExplorer.hxx>
40 #include <TopTools_IndexedMapOfShape.hxx>
41 #include <BRepBuilderAPI_MakeFace.hxx>
43 #include <TopTools_IndexedMapOfOrientedShape.hxx>
44 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
46 #include <BRepLib_MakeEdge.hxx>
47 #include <BRepLib_MakeWire.hxx>
48 #include <BRep_Builder.hxx>
49 #include <ShapeAnalysis_Wire.hxx>
50 #include <BRepAlgo_NormalProjection.hxx>
51 #include <ShapeUpgrade_UnifySameDomain.hxx>
52 #include <BRepBuilderAPI_MakePolygon.hxx>
53 #include <BOPAlgo_Builder.hxx>
54 #include <BRepAdaptor_Curve.hxx>
55 #include <GeomProjLib.hxx>
57 #include <TopTools_IndexedDataMapOfShapeShape.hxx>
58 #include <TopTools_ListIteratorOfListOfShape.hxx>
59 #include <TopTools_SequenceOfShape.hxx>
63 IMPLEMENT_STANDARD_RTTIEXT( HYDROData_DTM, HYDROData_Bathymetry )
65 HYDROData_DTM::CurveUZ::CurveUZ( double theXCurv, const gp_Vec2d& theProfileDir, double theDeltaZ, double theMaxZ )
66 : myXcurv( theXCurv ), myProfileDir( theProfileDir ), myDeltaZ( theDeltaZ ), myMaxZ (theMaxZ)
70 HYDROData_DTM::CurveUZ::~CurveUZ()
74 double HYDROData_DTM::CurveUZ::Xcurv() const
79 gp_Vec2d HYDROData_DTM::CurveUZ::ProfileDir() const
84 double HYDROData_DTM::CurveUZ::DeltaZ() const
89 double HYDROData_DTM::CurveUZ::MaxZ() const
94 HYDROData_DTM::CurveUZ HYDROData_DTM::CurveUZ::operator + ( const CurveUZ& c ) const
96 HYDROData_DTM::CurveUZ res( Xcurv() + c.Xcurv(), ProfileDir() + c.ProfileDir(), DeltaZ() + c.DeltaZ(), MaxZ() + c.MaxZ() );
97 size_t n = size(), n1 = c.size();
100 std::cout << "Warning: different number of points in curves: " << n << ", " << n1 << std::endl;
104 for( int i=0; i<q; i++ )
107 p.U = operator[]( i ).U + c[i].U;
108 p.Z = operator[]( i ).Z;
114 HYDROData_DTM::CurveUZ HYDROData_DTM::CurveUZ::operator * ( double d ) const
116 HYDROData_DTM::CurveUZ res( Xcurv()*d, ProfileDir()*d, DeltaZ()*d, MaxZ()*d );
119 for( int i=0; i<n; i++ )
122 p.U = operator[]( i ).U * d;
123 p.Z = operator[]( i ).Z;
132 HYDROData_DTM::HYDROData_DTM()
136 HYDROData_DTM::~HYDROData_DTM()
140 HYDROData_SequenceOfObjects HYDROData_DTM::GetProfiles() const
142 return GetReferenceObjects( DataTag_Profiles );
145 void HYDROData_DTM::SetProfiles( const HYDROData_SequenceOfObjects& theProfiles )
147 SetReferenceObjects( theProfiles, DataTag_Profiles );
151 double HYDROData_DTM::GetDDZ() const
153 return GetDouble( DataTag_DDZ );
156 void HYDROData_DTM::SetDDZ( double theDDZ )
158 SetDouble( DataTag_DDZ, theDDZ );
162 double HYDROData_DTM::GetSpatialStep() const
164 return GetDouble( DataTag_SpatialStep );
167 void HYDROData_DTM::SetSpatialStep( double theSpatialStep )
169 SetDouble( DataTag_SpatialStep, theSpatialStep );
173 void HYDROData_DTM::PointsToWire(const AltitudePoints& pnts, TopoDS_Wire& W )
176 BRepBuilderAPI_MakePolygon PM;
177 for (int i = 0; i < pnts.size(); i++)
178 PM.Add(gp_Pnt(pnts[i].X, pnts[i].Y, pnts[i].Z));
183 void HYDROData_DTM::PointsToEdge(const AltitudePoints& pnts, TopoDS_Edge& E )
185 Handle(TColgp_HArray1OfPnt) gpPoints = new TColgp_HArray1OfPnt(1, (int)pnts.size());
187 for (int i = 0; i < pnts.size(); i++)
188 gpPoints->SetValue(i+1, gp_Pnt(pnts[i].X, pnts[i].Y, pnts[i].Z));
190 GeomAPI_Interpolate anInterpolator(gpPoints, Standard_False,1.0e-6);
191 anInterpolator.Perform() ;
192 if (anInterpolator.IsDone())
194 Handle(Geom_BSplineCurve) C = anInterpolator.Curve();
195 E = BRepBuilderAPI_MakeEdge(C).Edge();
199 TopTools_IndexedMapOfOrientedShape HYDROData_DTM::Create3DShape(const AltitudePoints& left,
200 const AltitudePoints& right,
201 const std::vector<AltitudePoints>& main_profiles)
203 TopTools_IndexedMapOfOrientedShape ll;
204 //TopoDS_Wire LWire, RWire;
205 //PointsToWire(left, LWire);
206 //PointsToWire(right, RWire);
207 TopoDS_Edge LEdge, REdge;
208 PointsToEdge(left, LEdge);
209 PointsToEdge(right, REdge);
211 ll.Add(LEdge.Oriented(TopAbs_FORWARD));
213 for (int k = 0; k < main_profiles.size(); k++)
216 PointsToWire(main_profiles[k], W);
217 TopAbs_Orientation Ori = TopAbs_INTERNAL;
218 if (k == 0 || k == main_profiles.size() - 1)
219 Ori = TopAbs_FORWARD;
220 ll.Add(W.Oriented(Ori));
224 ll.Add(REdge.Oriented(TopAbs_FORWARD));
225 //yes, add subshapes in this order (left + profiles + right)
226 //otherwise the projected wire will be non-manifold
232 void HYDROData_DTM::Update()
234 AltitudePoints points;
235 TopoDS_Shape Out3dPres;
236 TopoDS_Shape Out2dPres;
237 TopoDS_Shape OutLeftB;
238 TopoDS_Shape OutRightB;
239 TopoDS_Shape OutInlet;
240 TopoDS_Shape OutOutlet;
242 HYDROData_SequenceOfObjects objs = GetProfiles();
243 double ddz = GetDDZ();
244 double step = GetSpatialStep();
245 std::set<int> InvInd;
246 bool WireIntersections; //__TODO
247 CreateProfilesFromDTM( objs, ddz, step, points, Out3dPres, Out2dPres, OutLeftB, OutRightB, OutInlet, OutOutlet, true, true, InvInd, -1, WireIntersections );
248 SetAltitudePoints( points );
250 SetShape( DataTag_LeftBankShape, OutLeftB);
251 SetShape( DataTag_RightBankShape, OutRightB);
252 SetShape( DataTag_InletShape, OutInlet);
253 SetShape( DataTag_OutletShape, OutOutlet );
254 SetShape( DataTag_3DShape, Out3dPres );
255 SetShape( DataTag_2DShape, Out2dPres );
257 HYDROData_Bathymetry::Update();
260 void HYDROData_DTM::GetPresentationShapes( TopoDS_Shape& Out3dPres,
261 TopoDS_Shape& Out2dPres,
262 TopoDS_Shape& OutLeftB,
263 TopoDS_Shape& OutRightB,
264 TopoDS_Shape& OutInlet,
265 TopoDS_Shape& OutOutlet )
268 OutLeftB = GetShape( DataTag_LeftBankShape);
269 OutRightB = GetShape( DataTag_RightBankShape);
270 OutInlet = GetShape( DataTag_InletShape);
271 OutOutlet = GetShape( DataTag_OutletShape );
272 Out3dPres = GetShape( DataTag_3DShape );
273 Out2dPres = GetShape( DataTag_2DShape );
275 void HYDROData_DTM::CreateProfilesFromDTM (const HYDROData_SequenceOfObjects& InpProfiles,
278 AltitudePoints& points,
279 TopoDS_Shape& Out3dPres,
280 TopoDS_Shape& Out2dPres,
281 TopoDS_Shape& OutLeftB,
282 TopoDS_Shape& OutRightB,
283 TopoDS_Shape& OutInlet,
284 TopoDS_Shape& OutOutlet,
287 std::set<int>& InvInd,
289 bool& WireIntersections)
291 int aLower = InpProfiles.Lower(), anUpper = InpProfiles.Upper();
292 size_t n = anUpper - aLower + 1;
294 std::vector<Handle(HYDROData_Profile)> profiles;
295 profiles.reserve( n );
296 for( int i=aLower; i<=anUpper; i++ )
298 Handle(HYDROData_Profile) aProfile = Handle(HYDROData_Profile)::DownCast( InpProfiles.Value( i ) );
299 if( !aProfile.IsNull() )
300 profiles.push_back( aProfile );
302 const double EPS = 1E-3;
304 AltitudePoints right;
305 std::vector<AltitudePoints> main_profiles;
307 if( thePntsLimit > 0 )
309 int aNbPoints = EstimateNbPoints( profiles, ddz, step );
310 if( aNbPoints < 0 || aNbPoints > thePntsLimit )
314 if( ddz>EPS && step>EPS )
315 CreateProfiles(profiles, ddz, step, left, right, points, main_profiles,
316 Out3dPres, Out2dPres, OutLeftB, OutRightB, OutInlet, OutOutlet, Create3dPres, Create2dPres, InvInd, WireIntersections );
319 bool HYDROData_DTM::GetPlanarFaceFromBanks( const TopoDS_Edge& LB, const TopoDS_Edge& RB, TopoDS_Face& outF,
320 TopTools_SequenceOfShape* Boundr)
324 Handle_Geom_Plane refpl = new Geom_Plane(gp_Pnt(0,0,0), gp_Dir(0,0,1));
326 TopoDS_Vertex VFI, VLI, VFO, VLO;
331 BRepAdaptor_Curve LBAD(LB);
332 Handle_Geom_Curve LBPC = GeomProjLib::ProjectOnPlane(LBAD.Curve().Curve(), refpl, gp_Dir(0, 0, -1), 1 );
333 prLB = BRepLib_MakeEdge(LBPC).Edge();
335 BRepAdaptor_Curve RBAD(RB);
336 Handle_Geom_Curve RBPC = GeomProjLib::ProjectOnPlane(RBAD.Curve().Curve(), refpl, gp_Dir(0, 0, -1), 1 );
337 prRB = BRepLib_MakeEdge(RBPC).Edge();
339 TopExp::Vertices(prLB, VFI, VFO, 1);
340 TopExp::Vertices(prRB, VLI, VLO, 1);
341 TopoDS_Edge prIL = BRepLib_MakeEdge(VFI, VLI).Edge();
342 TopoDS_Edge prOL = BRepLib_MakeEdge(VFO, VLO).Edge();
343 TopoDS_Wire prW = BRepLib_MakeWire(prLB, prIL, prOL, prRB).Wire();
344 outF = BRepBuilderAPI_MakeFace(refpl->Pln(), prW, 1).Face();
348 Boundr->Append(prLB);
349 Boundr->Append(prIL);
350 Boundr->Append(prOL);
351 Boundr->Append(prRB);
354 ShapeAnalysis_Wire WA(prW, outF, Precision::Confusion());
355 bool res = WA.CheckSelfIntersection();
359 void HYDROData_DTM::CreateProfiles(const std::vector<Handle(HYDROData_Profile)>& theProfiles,
361 double theSpatialStep,
362 AltitudePoints& theOutLeft,
363 AltitudePoints& theOutRight,
364 AltitudePoints& theOutPoints,
365 std::vector<AltitudePoints>& theOutMainProfiles,
366 TopoDS_Shape& Out3dPres,
367 TopoDS_Shape& Out2dPres,
368 TopoDS_Shape& OutLeftB,
369 TopoDS_Shape& OutRightB,
370 TopoDS_Shape& OutInlet,
371 TopoDS_Shape& OutOutlet,
374 std::set<int>& InvInd,
377 if (theProfiles.empty())
379 theOutPoints = Interpolate( theProfiles, theDDZ, theSpatialStep, theOutLeft, theOutRight, theOutMainProfiles, InvInd );
380 //note that if Create3dPres is false => Create2dPres flag is meaningless!
381 if( theOutPoints.empty() )
386 TopTools_IndexedMapOfOrientedShape ll = Create3DShape( theOutLeft, theOutRight, theOutMainProfiles);
392 BB.MakeCompound(cmp);
393 for (int i = 1; i <= ll.Extent(); i++)
398 //same order as in HYDROData_DTM::Update()
400 OutRightB = ll(ll.Extent());
402 OutOutlet = ll(ll.Extent() - 1);
407 ProjStat = GetPlanarFaceFromBanks(TopoDS::Edge(OutLeftB), TopoDS::Edge(OutRightB), outF, NULL);
416 void HYDROData_DTM::GetProperties( const Handle(HYDROData_Profile)& theProfile,
417 gp_Pnt& theLowestPoint, gp_Vec2d& theDir,
418 double& theZMin, double& theZMax )
420 theLowestPoint = theProfile->GetBottomPoint();
423 theProfile->GetLeftPoint( aLeft, true, true );
424 theProfile->GetRightPoint( aRight, true, true );
425 double x = aRight.X()-aLeft.X();
426 double y = aRight.Y()-aLeft.Y();
427 theDir = gp_Vec2d( x, y );
429 HYDROData_Profile::ProfilePoints points = theProfile->GetProfilePoints();
430 int lo = points.Lower();
431 int up = points.Upper();
434 for( int i=lo; i<=up; i++ )
436 double z = points.Value( i ).Z();
444 inline gp_Pnt2d To2D( const gp_Pnt& thePnt, const gp_Trsf& theTr,
445 double& theUMin, double& theUMax )
447 gp_Pnt p = thePnt.Transformed( theTr );
454 return gp_Pnt2d( u, z );
457 Handle(TColgp_HArray1OfPnt2d) To2D( const TColgp_Array1OfPnt& thePoints,
458 const gp_Trsf& theTr,
459 double& theUMin, double& theUMax )
461 int low = thePoints.Lower(), up = thePoints.Upper();
462 Handle(TColgp_HArray1OfPnt2d) points = new TColgp_HArray1OfPnt2d( low, up );
463 for( int i=low; i<=up; i++ )
464 points->SetValue( i, To2D( thePoints.Value( i ), theTr, theUMin, theUMax ) );
468 Handle(Geom2d_Curve) CurveTo2D( const Handle(Geom_Curve)& theCurve,
469 Standard_Real theFirst, Standard_Real theLast,
470 const gp_Trsf& theTr,
471 double& theUMin, double& theUMax )
473 if( theCurve->IsKind( STANDARD_TYPE( Geom_Line ) ) )
475 gp_Pnt aFirstPnt, aLastPnt;
476 theCurve->D0( theFirst, aFirstPnt );
477 theCurve->D0( theLast, aLastPnt );
480 aFirst2d = To2D( aFirstPnt, theTr, theUMin, theUMax ),
481 aLast2d = To2D( aLastPnt, theTr, theUMin, theUMax );
483 gp_Vec2d dir( aFirst2d, aLast2d );
484 Handle(Geom2d_Line) aLine2d = new Geom2d_Line( aFirst2d, gp_Dir2d( dir.X(), dir.Y() ) );
485 return new Geom2d_TrimmedCurve( aLine2d, 0, aLast2d.Distance( aFirst2d ) );
488 if( theCurve->IsKind( STANDARD_TYPE( Geom_BSplineCurve ) ) )
490 Handle(Geom_BSplineCurve) aSpline = Handle(Geom_BSplineCurve)::DownCast( theCurve );
492 Handle(TColgp_HArray1OfPnt2d) poles = To2D( aSpline->Poles(), theTr, theUMin, theUMax );
493 const TColStd_Array1OfReal& knots = aSpline->Knots();
494 const TColStd_Array1OfInteger& multiplicities = aSpline->Multiplicities();
495 int aDegree = aSpline->Degree();
497 return new Geom2d_BSplineCurve( poles->Array1(), knots, multiplicities, aDegree );
500 return Handle(Geom2d_Curve)();
503 #include <GCE2d_MakeSegment.hxx>
504 #include <Geom2dAPI_InterCurveCurve.hxx>
505 bool IsCooriented( const Handle(HYDROData_Profile)& theProfile1,
506 const Handle(HYDROData_Profile)& theProfile2 )
508 if( theProfile1==theProfile2 )
511 gp_XY lp1, rp1, lp2, rp2;
512 theProfile1->GetLeftPoint(lp1);
513 theProfile1->GetRightPoint(rp1);
514 theProfile2->GetLeftPoint(lp2);
515 theProfile2->GetRightPoint(rp2);
517 GCE2d_MakeSegment s1(lp1, lp2);
518 GCE2d_MakeSegment s2(rp1, rp2);
520 Geom2dAPI_InterCurveCurve inter;
521 inter.Init(s1.Value(), s2.Value());
522 if (inter.NbPoints() == 0)
528 Handle(Geom2d_BSplineCurve) HYDROData_DTM::CreateHydraulicAxis(
529 const std::vector<Handle(HYDROData_Profile)>& theProfiles,
530 std::vector<double>& theDistances )
532 size_t n = theProfiles.size();
534 return Handle_Geom2d_BSplineCurve();
536 Handle_Geom2d_BSplineCurve aResult;
538 Handle(TColgp_HArray1OfPnt2d) points = new TColgp_HArray1OfPnt2d( 1, (int)n );
539 TColgp_Array1OfVec2d tangents( 1, (int)n );
540 Handle(TColStd_HArray1OfBoolean) flags = new TColStd_HArray1OfBoolean( 1, (int)n );
542 // Stage 1. Orient all profiles to be co-oriented with the first profile
543 theProfiles[0]->Update();
544 for( size_t i = 1; i < n; i++ )
546 Handle(HYDROData_Profile) aProfile = theProfiles[i];
547 Handle(HYDROData_Profile) aPrevProfile = theProfiles[i-1];
549 if( !IsCooriented( aProfile, aPrevProfile ) )
552 aProfile->GetLeftPoint( lp, true );
553 aProfile->GetRightPoint( rp, true );
554 aProfile->SetLeftPoint( rp, true );
555 aProfile->SetRightPoint( lp, true );
560 // Stage 2. Calculate normals so that each normal "points" to the next profile
561 for( size_t i = 0; i < n; i++ )
563 Handle(HYDROData_Profile) aProfile = theProfiles[i];
564 Handle(HYDROData_Profile) aNextProfile = i==n-1 ? theProfiles[i-1] : theProfiles[i+1];
570 gp_XYZ curP = aProfile->GetBottomPoint(true);
571 gp_XY curP2d = gp_XY(curP.X(), curP.Y());
573 gp_XYZ nextP = aNextProfile->GetBottomPoint(true);
574 gp_XY nextP2d = gp_XY(nextP.X(), nextP.Y());
577 GetProperties( aProfile, aLowest, aPrTangent, zmin, zmax );
578 aNormal.SetCoord( -aPrTangent.Y(), aPrTangent.X() );
580 gp_Vec2d aDirToNextProfile(nextP2d.X() - curP2d.X(), nextP2d.Y() - curP2d.Y() );
582 aDirToNextProfile.Reverse();
584 if (aNormal.Dot(aDirToNextProfile) < 0)
589 points->SetValue( (int)(i+1), gp_Pnt2d( aLowest.X(), aLowest.Y() ) );
590 tangents.SetValue( (int)(i+1), aNormal );
591 flags->SetValue( (int)(i+1), Standard_True );
594 Geom2dAPI_Interpolate anInterpolator( points, Standard_False, Standard_False );
595 anInterpolator.Load( tangents, flags );
596 anInterpolator.Perform();
597 if( anInterpolator.IsDone() )
599 aResult = anInterpolator.Curve();
601 //fill the distances vector
602 Geom2dAdaptor_Curve anAdaptor( aResult );
604 theDistances.clear();
605 theDistances.reserve( n );
606 Standard_Real aParamFirst = anAdaptor.FirstParameter(), aParamLast = anAdaptor.LastParameter();
607 for( size_t i = 1; i <= n; i++ )
609 gp_Pnt2d aPnt = points->Value( (Standard_Integer)i );
610 Geom2dAPI_ProjectPointOnCurve aProject( aPnt, aResult );
611 Standard_Real aParam = aProject.LowerDistanceParameter();
612 double aDistance = GCPnts_AbscissaPoint::Length( anAdaptor, aParamFirst, aParam );
613 theDistances.push_back( aDistance );
619 std::vector<Handle(Geom2d_Curve)> HYDROData_DTM::ProfileToParametric(
620 const Handle(HYDROData_Profile)& theProfile,
621 double& theUMin, double& theUMax, gp_Vec2d& theDir )
623 std::vector<Handle(Geom2d_Curve)> curves;
625 // Transformation of the coordinate systems
628 GetProperties( theProfile, aLowest, theDir, zmin, zmax );
630 gp_Ax3 aStd3d( gp_Pnt( 0, 0, 0 ), gp_Dir( 0, 0, 1 ), gp_Dir( 1, 0, 0 ) );
631 gp_Ax3 aLocal( gp_Pnt( aLowest.X(), aLowest.Y(), 0 ), gp_Dir( 0, 0, 1 ), gp_Dir( theDir.X(), theDir.Y(), 0 ) );
634 aTransf.SetTransformation( aStd3d, aLocal );
636 // Iteration via edges
637 TopoDS_Wire aWire = TopoDS::Wire( theProfile->GetShape3D() );
638 TopExp_Explorer anExp( aWire, TopAbs_EDGE );
639 for( ; anExp.More(); anExp.Next() )
641 // Extract an edge from wire
642 TopoDS_Edge anEdge = TopoDS::Edge( anExp.Current() );
644 // Extract a curve corresponding to the edge
645 TopLoc_Location aLoc;
646 Standard_Real aFirst, aLast;
647 Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aLoc, aFirst, aLast );
649 // Convert the curve to 2d CS
650 Handle(Geom2d_Curve) aCurve2d = CurveTo2D( aCurve, aFirst, aLast, aTransf, theUMin, theUMax );
651 if( !aCurve2d.IsNull() )
652 curves.push_back( aCurve2d );
658 bool CalcMidWidth( const std::set<double>& intersections, double& theMid, double& theWid )
660 double umin = DBL_MAX,
663 size_t n = intersections.size();
667 std::set<double>::const_iterator it = intersections.begin(), last = intersections.end();
668 for( ; it!=last; it++ )
676 theMid = ( umin+umax )/2;
681 void HYDROData_DTM::ProfileDiscretization( const Handle(HYDROData_Profile)& theProfile,
682 double theXCurv, double theMinZ, double theMaxZ, double theTopZ, double theDDZ,
683 CurveUZ& theMidPointCurve,
684 CurveUZ& theWidthCurve,
685 int& intersection_nb,
688 double aDblMax = DBL_MAX,
693 gp_Vec2d aProfileDir;
694 std::vector<Handle(Geom2d_Curve)> curves = ProfileToParametric( theProfile, aUMin, aUMax, aProfileDir );
695 size_t n = curves.size();
700 // we add the "virtual" vertical lines to simulate the intersection with profile
701 gp_Pnt2d aFirst, aLast;
702 curves[0]->D0( curves[0]->FirstParameter(), aFirst );
703 curves[n-1]->D0( curves[n-1]->LastParameter(), aLast );
704 Handle(Geom2d_Line) aV1 = new Geom2d_Line( aFirst, gp_Dir2d( 0, 1 ) );
705 Handle(Geom2d_TrimmedCurve) aT1 = new Geom2d_TrimmedCurve( aV1, 0.0, aVMax );
707 Handle(Geom2d_Line) aV2 = new Geom2d_Line( aLast, gp_Dir2d( 0, 1 ) );
708 Handle(Geom2d_TrimmedCurve) aT2 = new Geom2d_TrimmedCurve( aV2, 0.0, aVMax );
710 curves.push_back( aT1 );
711 curves.push_back( aT2 );
713 int psize = ( int )( ( theMaxZ-theMinZ ) / theDDZ + 1 );
714 theMidPointCurve = CurveUZ( theXCurv, aProfileDir, theMinZ, theTopZ);
715 theMidPointCurve.reserve( psize );
716 theWidthCurve = CurveUZ( theXCurv, aProfileDir, theMinZ, theTopZ );
717 theWidthCurve.reserve( psize );
720 // for each discrete value of z we search intersection with profile
721 for( double z1 = theMinZ; z1 <= theMaxZ; z1 += theDDZ )
723 Handle(Geom2d_Line) aLine = new Geom2d_Line( gp_Pnt2d( 0, z1 ), gp_Dir2d( 1, 0 ) );
724 std::set<double> intersections;
725 for( size_t i = 0; i < n; i++ )
727 Handle(Geom2d_Curve) aCurve = curves[i];
728 Geom2dAPI_InterCurveCurve anIntersect( aCurve, aLine, theTolerance );
729 for( int k=1, m=anIntersect.NbPoints(); k<=m; k++ )
730 intersections.insert( anIntersect.Point( k ).X() );
733 intersection_nb = intersections.size();
734 if( intersection_nb >= 1 )
737 if( !CalcMidWidth( intersections, u_mid, u_wid ) )
740 double z = z1 - theMinZ;
744 theMidPointCurve.push_back( p_mid );
749 theWidthCurve.push_back( p_wid );
754 void HYDROData_DTM::Interpolate( const CurveUZ& theCurveA, const CurveUZ& theCurveB,
755 int theNbSteps, std::vector<CurveUZ>& theInterpolation,
758 theInterpolation.clear();
759 int d = isAddSecond ? 2 : 1;
760 theInterpolation.reserve( theNbSteps+d );
761 double dt = 1.0 / double( theNbSteps + 1 );
763 theInterpolation.push_back( theCurveA );
764 for( int i=0; i<theNbSteps; i++, t+=dt )
766 CurveUZ anInterp = theCurveA*(1-t) + theCurveB*t;
767 theInterpolation.push_back( anInterp );
770 theInterpolation.push_back( theCurveB );
772 #include <BRepLib_MakeEdge2d.hxx>
773 void HYDROData_DTM::CurveTo3D( const Handle(Geom2d_BSplineCurve)& theHydraulicAxis,
774 const CurveUZ& theMidCurve, const CurveUZ& theWidthCurve,
775 AltitudePoints& thePoints )
777 Geom2dAdaptor_Curve anAdaptor( theHydraulicAxis );
778 TopoDS_Edge E2d = BRepLib_MakeEdge2d(theHydraulicAxis).Edge();
779 GCPnts_AbscissaPoint ap( anAdaptor, theMidCurve.Xcurv(), anAdaptor.FirstParameter() );
780 double aParam = ap.Parameter();
783 anAdaptor.D0( aParam, point );
784 gp_Vec2d profile_dir = theMidCurve.ProfileDir();
785 //gp_Dir tangent_n( -profile_dir.Y(), profile_dir.X(), dz );
786 profile_dir.Normalize();
788 size_t n = theMidCurve.size();
789 std::map<double, AltitudePoint> sorted_points;
790 bool isOnTop = false;
791 for( size_t i=0; i<n; i++ ) // build the two banks of the interpolated profile, from bottom to top
793 double param1 = theMidCurve[i].U - theWidthCurve[i].U / 2;
794 double param2 = theMidCurve[i].U + theWidthCurve[i].U / 2;
796 gp_Pnt2d p1 = point.Translated( param1 * profile_dir);
797 gp_Pnt2d p2 = point.Translated( param2 * profile_dir);
799 bool arrivedOnTop = false;
801 if (theMidCurve[i].Z <= theMidCurve.MaxZ())
802 z = theMidCurve[i].Z + theMidCurve.DeltaZ();
805 z = theMidCurve.MaxZ() + theMidCurve.DeltaZ(); // limit z to linear interpolation between maxima on extremity profiles
806 arrivedOnTop = true; // do not keep points after this one
810 AltitudePoint p3d_1( p1.X(), p1.Y(), z ), p3d_2( p2.X(), p2.Y(), z );
812 sorted_points[param1] = p3d_1;
813 sorted_points[param2] = p3d_2;
816 // isOnTop =true; // do not keep points after this one (commented: leads to strange limits of 2D shape)
819 thePoints.reserve( sorted_points.size() );
820 const double EPS = 1E-12;
821 std::map<double, AltitudePoint>::const_iterator it = sorted_points.begin(), last = sorted_points.end();
822 for( ; it!=last; it++ )
823 if( thePoints.empty() || thePoints.back().SquareDistance( it->second ) > EPS )
824 thePoints.push_back( it->second );
827 //inline double max( double a, double b )
835 //inline double min( double a, double b )
843 #include <BRepLib_MakeWire.hxx>
845 std::vector<HYDROData_Bathymetry::AltitudePoints> HYDROData_DTM::Interpolate
846 ( const Handle(Geom2d_BSplineCurve)& theHydraulicAxis,
847 const Handle(HYDROData_Profile)& theProfileA,
849 const Handle(HYDROData_Profile)& theProfileB,
851 double theDDZ, int theNbSteps, bool isAddSecond,
852 int& inter_nb_1, int& inter_nb_2)
854 double zminA, zmaxA, zminB, zmaxB;
855 gp_Pnt lowestA, lowestB;
858 GetProperties( theProfileA, lowestA, dirA, zminA, zmaxA );
859 GetProperties( theProfileB, lowestB, dirB, zminB, zmaxB );
862 double hmax = max( zmaxA-zminA, zmaxB-zminB );
864 //double dz = zminB - zminA;
865 //double zmin = min( zminA, zminB );
866 //double zmax = max( zmaxA, zmaxB );
868 CurveUZ midA(0, gp_Vec2d(), 0, 0), midB(0, gp_Vec2d(), 0, 0);
869 CurveUZ widA(0, gp_Vec2d(), 0, 0), widB(0, gp_Vec2d(), 0, 0);
871 ProfileDiscretization( theProfileA, theXCurvA, zminA, zminA+hmax, zmaxA-zminA, theDDZ, midA, widA, inter_nb_1 );
872 ProfileDiscretization( theProfileB, theXCurvB, zminB, zminB+hmax, zmaxB-zminB, theDDZ, midB, widB, inter_nb_2 );
874 std::vector<CurveUZ> mid, wid;
875 Interpolate( midA, midB, theNbSteps, mid, isAddSecond );
876 Interpolate( widA, widB, theNbSteps, wid, isAddSecond );
878 size_t p = mid.size();
879 size_t q = p>0 ? 2*mid[0].size() : 1;
880 std::vector<AltitudePoints> points;
883 for( size_t i=0; i<p; i++ )
885 points[i].reserve( q );
886 CurveTo3D( theHydraulicAxis, mid[i], wid[i], points[i] );
892 HYDROData_Bathymetry::AltitudePoints HYDROData_DTM::Interpolate
893 ( const std::vector<Handle(HYDROData_Profile)>& theProfiles,
894 double theDDZ, double theSpatialStep,
895 AltitudePoints& theLeft,
896 AltitudePoints& theRight,
897 std::vector<AltitudePoints>& theMainProfiles,
898 std::set<int>& invalInd)
900 AltitudePoints points;
901 size_t n = theProfiles.size();
905 std::vector<double> distances;
906 Handle(Geom2d_BSplineCurve) aHydraulicAxis = CreateHydraulicAxis( theProfiles, distances );
907 if( aHydraulicAxis.IsNull() )
910 theMainProfiles.reserve( n );
912 for( size_t i=0, n1=n-1; i<n1; i++ )
914 double aDistance = distances[i+1]-distances[i];
915 int aNbSteps = int(aDistance/theSpatialStep);
916 bool isAddSecond = i==n1-1;
918 // 1. Calculate interpolated profiles
919 int inter_nb_1, inter_nb_2;
920 std::vector<AltitudePoints> local_points = Interpolate( aHydraulicAxis, theProfiles[i], distances[i],
921 theProfiles[i+1], distances[i+1], theDDZ, aNbSteps, isAddSecond, inter_nb_1, inter_nb_2 );
922 int lps = local_points.size();
928 invalInd.insert(i+1);
930 // 2. Put all points into the global container
931 for( size_t j=0; j<lps; j++ )
933 const AltitudePoints& lp = local_points[j];
935 points.reserve( lp.size() * n );
936 for( size_t k=0, ks=lp.size(); k<ks; k++ )
937 points.push_back( lp[k] );
940 // 3. Get left/right banks' points
943 theLeft.reserve( lps * n );
944 theRight.reserve( lps * n );
946 for( size_t j=0; j<lps; j++ )
948 const AltitudePoints& lp = local_points[j];
949 theLeft.push_back( lp[0] );
950 theRight.push_back( lp[lp.size()-1] );
953 // 4. Get main profiles points
954 theMainProfiles.push_back( local_points[0] );
956 theMainProfiles.push_back( local_points[lps-1] );
961 int HYDROData_DTM::EstimateNbPoints( const std::vector<Handle(HYDROData_Profile)>& theProfiles,
962 double theDDZ, double theSpatialStep )
964 size_t n = theProfiles.size();
967 if( theDDZ<1E-6 || theSpatialStep<1E-6 )
970 std::vector<double> distances;
971 Handle(Geom2d_BSplineCurve) aHydraulicAxis = CreateHydraulicAxis( theProfiles, distances );
972 if( aHydraulicAxis.IsNull() )
975 double aCompleteDistance = distances[n-1];
976 int aNbSteps = int( aCompleteDistance / theSpatialStep ) + 1;
980 GetProperties( theProfiles[0], aLowest, aDir, aZMin, aZMax );
981 int aNbZSteps = (aZMax-aZMin)/theDDZ;
983 if( aNbSteps > ( 1<<16 ) || aNbZSteps > ( 1<<16 ) )
986 return aNbSteps * aNbZSteps;