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>
62 IMPLEMENT_STANDARD_RTTIEXT( HYDROData_DTM, HYDROData_Bathymetry )
64 HYDROData_DTM::CurveUZ::CurveUZ( double theXCurv, const gp_Vec2d& theProfileDir, double theDeltaZ, double theMaxZ )
65 : myXcurv( theXCurv ), myProfileDir( theProfileDir ), myDeltaZ( theDeltaZ ), myMaxZ (theMaxZ)
69 HYDROData_DTM::CurveUZ::~CurveUZ()
73 double HYDROData_DTM::CurveUZ::Xcurv() const
78 gp_Vec2d HYDROData_DTM::CurveUZ::ProfileDir() const
83 double HYDROData_DTM::CurveUZ::DeltaZ() const
88 double HYDROData_DTM::CurveUZ::MaxZ() const
93 HYDROData_DTM::CurveUZ HYDROData_DTM::CurveUZ::operator + ( const CurveUZ& c ) const
95 HYDROData_DTM::CurveUZ res( Xcurv() + c.Xcurv(), ProfileDir() + c.ProfileDir(), DeltaZ() + c.DeltaZ(), MaxZ() + c.MaxZ() );
96 size_t n = size(), n1 = c.size();
99 std::cout << "Warning: different number of points in curves: " << n << ", " << n1 << std::endl;
101 int q = std::min(n, n1);
103 for( int i=0; i<q; i++ )
106 p.U = operator[]( i ).U + c[i].U;
107 p.Z = operator[]( i ).Z;
113 HYDROData_DTM::CurveUZ HYDROData_DTM::CurveUZ::operator * ( double d ) const
115 HYDROData_DTM::CurveUZ res( Xcurv()*d, ProfileDir()*d, DeltaZ()*d, MaxZ()*d );
118 for( int i=0; i<n; i++ )
121 p.U = operator[]( i ).U * d;
122 p.Z = operator[]( i ).Z;
131 HYDROData_DTM::HYDROData_DTM()
135 HYDROData_DTM::~HYDROData_DTM()
139 HYDROData_SequenceOfObjects HYDROData_DTM::GetProfiles() const
141 return GetReferenceObjects( DataTag_Profiles );
144 void HYDROData_DTM::SetProfiles( const HYDROData_SequenceOfObjects& theProfiles )
146 SetReferenceObjects( theProfiles, DataTag_Profiles );
150 double HYDROData_DTM::GetDDZ() const
152 return GetDouble( DataTag_DDZ );
155 void HYDROData_DTM::SetDDZ( double theDDZ )
157 SetDouble( DataTag_DDZ, theDDZ );
161 double HYDROData_DTM::GetSpatialStep() const
163 return GetDouble( DataTag_SpatialStep );
166 void HYDROData_DTM::SetSpatialStep( double theSpatialStep )
168 SetDouble( DataTag_SpatialStep, theSpatialStep );
172 void HYDROData_DTM::PointsToWire(const AltitudePoints& pnts, TopoDS_Wire& W )
175 BRepBuilderAPI_MakePolygon PM;
176 for (int i = 0; i < pnts.size(); i++)
177 PM.Add(gp_Pnt(pnts[i].X, pnts[i].Y, pnts[i].Z));
182 void HYDROData_DTM::PointsToEdge(const AltitudePoints& pnts, TopoDS_Edge& E )
184 Handle(TColgp_HArray1OfPnt) gpPoints = new TColgp_HArray1OfPnt(1, (int)pnts.size());
186 for (int i = 0; i < pnts.size(); i++)
187 gpPoints->SetValue(i+1, gp_Pnt(pnts[i].X, pnts[i].Y, pnts[i].Z));
189 GeomAPI_Interpolate anInterpolator(gpPoints, Standard_False,1.0e-6);
190 anInterpolator.Perform() ;
191 if (anInterpolator.IsDone())
193 Handle(Geom_BSplineCurve) C = anInterpolator.Curve();
194 E = BRepBuilderAPI_MakeEdge(C).Edge();
198 TopTools_IndexedMapOfOrientedShape HYDROData_DTM::Create3DShape(const AltitudePoints& left,
199 const AltitudePoints& right,
200 const std::vector<AltitudePoints>& main_profiles)
202 TopTools_IndexedMapOfOrientedShape ll;
203 //TopoDS_Wire LWire, RWire;
204 //PointsToWire(left, LWire);
205 //PointsToWire(right, RWire);
206 TopoDS_Edge LEdge, REdge;
207 PointsToEdge(left, LEdge);
208 PointsToEdge(right, REdge);
210 ll.Add(LEdge.Oriented(TopAbs_FORWARD));
212 for (int k = 0; k < main_profiles.size(); k++)
215 PointsToWire(main_profiles[k], W);
216 TopAbs_Orientation Ori = TopAbs_INTERNAL;
217 if (k == 0 || k == main_profiles.size() - 1)
218 Ori = TopAbs_FORWARD;
219 ll.Add(W.Oriented(Ori));
223 ll.Add(REdge.Oriented(TopAbs_FORWARD));
224 //yes, add subshapes in this order (left + profiles + right)
225 //otherwise the projected wire will be non-manifold
231 void HYDROData_DTM::Update()
233 AltitudePoints points;
234 TopoDS_Shape Out3dPres;
235 TopoDS_Shape Out2dPres;
236 TopoDS_Shape OutLeftB;
237 TopoDS_Shape OutRightB;
238 TopoDS_Shape OutInlet;
239 TopoDS_Shape OutOutlet;
241 HYDROData_SequenceOfObjects objs = GetProfiles();
242 double ddz = GetDDZ();
243 double step = GetSpatialStep();
244 std::set<int> InvInd;
245 bool WireIntersections; //__TODO
246 CreateProfilesFromDTM( objs, ddz, step, points, Out3dPres, Out2dPres, OutLeftB, OutRightB, OutInlet, OutOutlet, true, true, InvInd, -1, WireIntersections );
247 SetAltitudePoints( points );
249 SetShape( DataTag_LeftBankShape, OutLeftB);
250 SetShape( DataTag_RightBankShape, OutRightB);
251 SetShape( DataTag_InletShape, OutInlet);
252 SetShape( DataTag_OutletShape, OutOutlet );
253 SetShape( DataTag_3DShape, Out3dPres );
254 SetShape( DataTag_2DShape, Out2dPres );
256 HYDROData_Bathymetry::Update();
259 void HYDROData_DTM::GetPresentationShapes( TopoDS_Shape& Out3dPres,
260 TopoDS_Shape& Out2dPres,
261 TopoDS_Shape& OutLeftB,
262 TopoDS_Shape& OutRightB,
263 TopoDS_Shape& OutInlet,
264 TopoDS_Shape& OutOutlet )
267 OutLeftB = GetShape( DataTag_LeftBankShape);
268 OutRightB = GetShape( DataTag_RightBankShape);
269 OutInlet = GetShape( DataTag_InletShape);
270 OutOutlet = GetShape( DataTag_OutletShape );
271 Out3dPres = GetShape( DataTag_3DShape );
272 Out2dPres = GetShape( DataTag_2DShape );
274 void HYDROData_DTM::CreateProfilesFromDTM (const HYDROData_SequenceOfObjects& InpProfiles,
277 AltitudePoints& points,
278 TopoDS_Shape& Out3dPres,
279 TopoDS_Shape& Out2dPres,
280 TopoDS_Shape& OutLeftB,
281 TopoDS_Shape& OutRightB,
282 TopoDS_Shape& OutInlet,
283 TopoDS_Shape& OutOutlet,
286 std::set<int>& InvInd,
288 bool& WireIntersections)
290 int aLower = InpProfiles.Lower(), anUpper = InpProfiles.Upper();
291 size_t n = anUpper - aLower + 1;
293 std::vector<Handle(HYDROData_Profile)> profiles;
294 profiles.reserve( n );
295 for( int i=aLower; i<=anUpper; i++ )
297 Handle(HYDROData_Profile) aProfile = Handle(HYDROData_Profile)::DownCast( InpProfiles.Value( i ) );
298 if( !aProfile.IsNull() )
299 profiles.push_back( aProfile );
301 const double EPS = 1E-3;
303 AltitudePoints right;
304 std::vector<AltitudePoints> main_profiles;
306 if( thePntsLimit > 0 )
308 int aNbPoints = EstimateNbPoints( profiles, ddz, step );
309 if( aNbPoints < 0 || aNbPoints > thePntsLimit )
313 if( ddz>EPS && step>EPS )
314 CreateProfiles(profiles, ddz, step, left, right, points, main_profiles,
315 Out3dPres, Out2dPres, OutLeftB, OutRightB, OutInlet, OutOutlet, Create3dPres, Create2dPres, InvInd, WireIntersections );
318 bool HYDROData_DTM::GetPlanarFaceFromBanks( const TopoDS_Edge& LB, const TopoDS_Edge& RB, TopoDS_Face& outF,
319 TopTools_SequenceOfShape* Boundr)
323 Handle_Geom_Plane refpl = new Geom_Plane(gp_Pnt(0,0,0), gp_Dir(0,0,1));
325 TopoDS_Vertex VFI, VLI, VFO, VLO;
330 BRepAdaptor_Curve LBAD(LB);
331 Handle_Geom_Curve LBPC = GeomProjLib::ProjectOnPlane(LBAD.Curve().Curve(), refpl, gp_Dir(0, 0, -1), 1 );
332 prLB = BRepLib_MakeEdge(LBPC).Edge();
334 BRepAdaptor_Curve RBAD(RB);
335 Handle_Geom_Curve RBPC = GeomProjLib::ProjectOnPlane(RBAD.Curve().Curve(), refpl, gp_Dir(0, 0, -1), 1 );
336 prRB = BRepLib_MakeEdge(RBPC).Edge();
338 TopExp::Vertices(prLB, VFI, VFO, 1);
339 TopExp::Vertices(prRB, VLI, VLO, 1);
340 TopoDS_Edge prIL = BRepLib_MakeEdge(VFI, VLI).Edge();
341 TopoDS_Edge prOL = BRepLib_MakeEdge(VFO, VLO).Edge();
342 TopoDS_Wire prW = BRepLib_MakeWire(prLB, prIL, prOL, prRB).Wire();
343 outF = BRepBuilderAPI_MakeFace(refpl->Pln(), prW, 1).Face();
347 Boundr->Append(prLB);
348 Boundr->Append(prIL);
349 Boundr->Append(prOL);
350 Boundr->Append(prRB);
353 ShapeAnalysis_Wire WA(prW, outF, Precision::Confusion());
354 bool res = WA.CheckSelfIntersection();
358 void HYDROData_DTM::CreateProfiles(const std::vector<Handle(HYDROData_Profile)>& theProfiles,
360 double theSpatialStep,
361 AltitudePoints& theOutLeft,
362 AltitudePoints& theOutRight,
363 AltitudePoints& theOutPoints,
364 std::vector<AltitudePoints>& theOutMainProfiles,
365 TopoDS_Shape& Out3dPres,
366 TopoDS_Shape& Out2dPres,
367 TopoDS_Shape& OutLeftB,
368 TopoDS_Shape& OutRightB,
369 TopoDS_Shape& OutInlet,
370 TopoDS_Shape& OutOutlet,
373 std::set<int>& InvInd,
376 if (theProfiles.empty())
378 theOutPoints = Interpolate( theProfiles, theDDZ, theSpatialStep, theOutLeft, theOutRight, theOutMainProfiles, InvInd );
379 //note that if Create3dPres is false => Create2dPres flag is meaningless!
380 if( theOutPoints.empty() )
385 TopTools_IndexedMapOfOrientedShape ll = Create3DShape( theOutLeft, theOutRight, theOutMainProfiles);
391 BB.MakeCompound(cmp);
392 for (int i = 1; i <= ll.Extent(); i++)
397 //same order as in HYDROData_DTM::Update()
399 OutRightB = ll(ll.Extent());
401 OutOutlet = ll(ll.Extent() - 1);
406 ProjStat = GetPlanarFaceFromBanks(TopoDS::Edge(OutLeftB), TopoDS::Edge(OutRightB), outF, NULL);
415 void HYDROData_DTM::GetProperties( const Handle(HYDROData_Profile)& theProfile,
416 gp_Pnt& theLowestPoint, gp_Vec2d& theDir,
417 double& theZMin, double& theZMax )
419 theLowestPoint = theProfile->GetBottomPoint();
422 theProfile->GetLeftPoint( aLeft, true, true );
423 theProfile->GetRightPoint( aRight, true, true );
424 double x = aRight.X()-aLeft.X();
425 double y = aRight.Y()-aLeft.Y();
426 theDir = gp_Vec2d( x, y );
428 HYDROData_Profile::ProfilePoints points = theProfile->GetProfilePoints();
429 int lo = points.Lower();
430 int up = points.Upper();
431 theZMin = std::numeric_limits<double>::max();
433 for( int i=lo; i<=up; i++ )
435 double z = points.Value( i ).Z();
443 inline gp_Pnt2d To2D( const gp_Pnt& thePnt, const gp_Trsf& theTr,
444 double& theUMin, double& theUMax )
446 gp_Pnt p = thePnt.Transformed( theTr );
453 return gp_Pnt2d( u, z );
456 Handle(TColgp_HArray1OfPnt2d) To2D( const TColgp_Array1OfPnt& thePoints,
457 const gp_Trsf& theTr,
458 double& theUMin, double& theUMax )
460 int low = thePoints.Lower(), up = thePoints.Upper();
461 Handle(TColgp_HArray1OfPnt2d) points = new TColgp_HArray1OfPnt2d( low, up );
462 for( int i=low; i<=up; i++ )
463 points->SetValue( i, To2D( thePoints.Value( i ), theTr, theUMin, theUMax ) );
467 Handle(Geom2d_Curve) CurveTo2D( const Handle(Geom_Curve)& theCurve,
468 Standard_Real theFirst, Standard_Real theLast,
469 const gp_Trsf& theTr,
470 double& theUMin, double& theUMax )
472 if( theCurve->IsKind( STANDARD_TYPE( Geom_Line ) ) )
474 gp_Pnt aFirstPnt, aLastPnt;
475 theCurve->D0( theFirst, aFirstPnt );
476 theCurve->D0( theLast, aLastPnt );
479 aFirst2d = To2D( aFirstPnt, theTr, theUMin, theUMax ),
480 aLast2d = To2D( aLastPnt, theTr, theUMin, theUMax );
482 gp_Vec2d dir( aFirst2d, aLast2d );
483 Handle(Geom2d_Line) aLine2d = new Geom2d_Line( aFirst2d, gp_Dir2d( dir.X(), dir.Y() ) );
484 return new Geom2d_TrimmedCurve( aLine2d, 0, aLast2d.Distance( aFirst2d ) );
487 if( theCurve->IsKind( STANDARD_TYPE( Geom_BSplineCurve ) ) )
489 Handle(Geom_BSplineCurve) aSpline = Handle(Geom_BSplineCurve)::DownCast( theCurve );
491 Handle(TColgp_HArray1OfPnt2d) poles = To2D( aSpline->Poles(), theTr, theUMin, theUMax );
492 const TColStd_Array1OfReal& knots = aSpline->Knots();
493 const TColStd_Array1OfInteger& multiplicities = aSpline->Multiplicities();
494 int aDegree = aSpline->Degree();
496 return new Geom2d_BSplineCurve( poles->Array1(), knots, multiplicities, aDegree );
499 return Handle(Geom2d_Curve)();
502 #include <GCE2d_MakeSegment.hxx>
503 #include <Geom2dAPI_InterCurveCurve.hxx>
504 bool IsCooriented( const Handle(HYDROData_Profile)& theProfile1,
505 const Handle(HYDROData_Profile)& theProfile2 )
507 if( theProfile1==theProfile2 )
510 gp_XY lp1, rp1, lp2, rp2;
511 theProfile1->GetLeftPoint(lp1);
512 theProfile1->GetRightPoint(rp1);
513 theProfile2->GetLeftPoint(lp2);
514 theProfile2->GetRightPoint(rp2);
516 GCE2d_MakeSegment s1(lp1, lp2);
517 GCE2d_MakeSegment s2(rp1, rp2);
519 Geom2dAPI_InterCurveCurve inter;
520 inter.Init(s1.Value(), s2.Value());
521 if (inter.NbPoints() == 0)
527 Handle(Geom2d_BSplineCurve) HYDROData_DTM::CreateHydraulicAxis(
528 const std::vector<Handle(HYDROData_Profile)>& theProfiles,
529 std::vector<double>& theDistances )
531 size_t n = theProfiles.size();
533 return Handle_Geom2d_BSplineCurve();
535 Handle_Geom2d_BSplineCurve aResult;
537 Handle(TColgp_HArray1OfPnt2d) points = new TColgp_HArray1OfPnt2d( 1, (int)n );
538 TColgp_Array1OfVec2d tangents( 1, (int)n );
539 Handle(TColStd_HArray1OfBoolean) flags = new TColStd_HArray1OfBoolean( 1, (int)n );
541 // Stage 1. Orient all profiles to be co-oriented with the first profile
542 theProfiles[0]->Update();
543 for( size_t i = 1; i < n; i++ )
545 Handle(HYDROData_Profile) aProfile = theProfiles[i];
546 Handle(HYDROData_Profile) aPrevProfile = theProfiles[i-1];
548 if( !IsCooriented( aProfile, aPrevProfile ) )
551 aProfile->GetLeftPoint( lp, true );
552 aProfile->GetRightPoint( rp, true );
553 aProfile->SetLeftPoint( rp, true );
554 aProfile->SetRightPoint( lp, true );
559 // Stage 2. Calculate normals so that each normal "points" to the next profile
560 for( size_t i = 0; i < n; i++ )
562 Handle(HYDROData_Profile) aProfile = theProfiles[i];
563 Handle(HYDROData_Profile) aNextProfile = i==n-1 ? theProfiles[i-1] : theProfiles[i+1];
569 gp_XYZ curP = aProfile->GetBottomPoint(true);
570 gp_XY curP2d = gp_XY(curP.X(), curP.Y());
572 gp_XYZ nextP = aNextProfile->GetBottomPoint(true);
573 gp_XY nextP2d = gp_XY(nextP.X(), nextP.Y());
576 GetProperties( aProfile, aLowest, aPrTangent, zmin, zmax );
577 aNormal.SetCoord( -aPrTangent.Y(), aPrTangent.X() );
579 gp_Vec2d aDirToNextProfile(nextP2d.X() - curP2d.X(), nextP2d.Y() - curP2d.Y() );
581 aDirToNextProfile.Reverse();
583 if (aNormal.Dot(aDirToNextProfile) < 0)
588 points->SetValue( (int)(i+1), gp_Pnt2d( aLowest.X(), aLowest.Y() ) );
589 tangents.SetValue( (int)(i+1), aNormal );
590 flags->SetValue( (int)(i+1), Standard_True );
593 Geom2dAPI_Interpolate anInterpolator( points, Standard_False, Standard_False );
594 anInterpolator.Load( tangents, flags );
595 anInterpolator.Perform();
596 if( anInterpolator.IsDone() )
598 aResult = anInterpolator.Curve();
600 //fill the distances vector
601 Geom2dAdaptor_Curve anAdaptor( aResult );
603 theDistances.clear();
604 theDistances.reserve( n );
605 Standard_Real aParamFirst = anAdaptor.FirstParameter(), aParamLast = anAdaptor.LastParameter();
606 for( size_t i = 1; i <= n; i++ )
608 gp_Pnt2d aPnt = points->Value( (Standard_Integer)i );
609 Geom2dAPI_ProjectPointOnCurve aProject( aPnt, aResult );
610 Standard_Real aParam = aProject.LowerDistanceParameter();
611 double aDistance = GCPnts_AbscissaPoint::Length( anAdaptor, aParamFirst, aParam );
612 theDistances.push_back( aDistance );
618 std::vector<Handle(Geom2d_Curve)> HYDROData_DTM::ProfileToParametric(
619 const Handle(HYDROData_Profile)& theProfile,
620 double& theUMin, double& theUMax, gp_Vec2d& theDir )
622 std::vector<Handle(Geom2d_Curve)> curves;
624 // Transformation of the coordinate systems
627 GetProperties( theProfile, aLowest, theDir, zmin, zmax );
629 gp_Ax3 aStd3d( gp_Pnt( 0, 0, 0 ), gp_Dir( 0, 0, 1 ), gp_Dir( 1, 0, 0 ) );
630 gp_Ax3 aLocal( gp_Pnt( aLowest.X(), aLowest.Y(), 0 ), gp_Dir( 0, 0, 1 ), gp_Dir( theDir.X(), theDir.Y(), 0 ) );
633 aTransf.SetTransformation( aStd3d, aLocal );
635 // Iteration via edges
636 TopoDS_Wire aWire = TopoDS::Wire( theProfile->GetShape3D() );
637 TopExp_Explorer anExp( aWire, TopAbs_EDGE );
638 for( ; anExp.More(); anExp.Next() )
640 // Extract an edge from wire
641 TopoDS_Edge anEdge = TopoDS::Edge( anExp.Current() );
643 // Extract a curve corresponding to the edge
644 TopLoc_Location aLoc;
645 Standard_Real aFirst, aLast;
646 Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aLoc, aFirst, aLast );
648 // Convert the curve to 2d CS
649 Handle(Geom2d_Curve) aCurve2d = CurveTo2D( aCurve, aFirst, aLast, aTransf, theUMin, theUMax );
650 if( !aCurve2d.IsNull() )
651 curves.push_back( aCurve2d );
657 bool CalcMidWidth( const std::set<double>& intersections, double& theMid, double& theWid )
659 double umin = std::numeric_limits<double>::max(),
662 size_t n = intersections.size();
666 std::set<double>::const_iterator it = intersections.begin(), last = intersections.end();
667 for( ; it!=last; it++ )
675 theMid = ( umin+umax )/2;
680 void HYDROData_DTM::ProfileDiscretization( const Handle(HYDROData_Profile)& theProfile,
681 double theXCurv, double theMinZ, double theMaxZ, double theTopZ, double theDDZ,
682 CurveUZ& theMidPointCurve,
683 CurveUZ& theWidthCurve,
684 int& intersection_nb,
687 double aDblMax = std::numeric_limits<double>::max(),
692 gp_Vec2d aProfileDir;
693 std::vector<Handle(Geom2d_Curve)> curves = ProfileToParametric( theProfile, aUMin, aUMax, aProfileDir );
694 size_t n = curves.size();
699 // we add the "virtual" vertical lines to simulate the intersection with profile
700 gp_Pnt2d aFirst, aLast;
701 curves[0]->D0( curves[0]->FirstParameter(), aFirst );
702 curves[n-1]->D0( curves[n-1]->LastParameter(), aLast );
703 Handle(Geom2d_Line) aV1 = new Geom2d_Line( aFirst, gp_Dir2d( 0, 1 ) );
704 Handle(Geom2d_TrimmedCurve) aT1 = new Geom2d_TrimmedCurve( aV1, 0.0, aVMax );
706 Handle(Geom2d_Line) aV2 = new Geom2d_Line( aLast, gp_Dir2d( 0, 1 ) );
707 Handle(Geom2d_TrimmedCurve) aT2 = new Geom2d_TrimmedCurve( aV2, 0.0, aVMax );
709 curves.push_back( aT1 );
710 curves.push_back( aT2 );
712 int psize = ( int )( ( theMaxZ-theMinZ ) / theDDZ + 1 );
713 theMidPointCurve = CurveUZ( theXCurv, aProfileDir, theMinZ, theTopZ);
714 theMidPointCurve.reserve( psize );
715 theWidthCurve = CurveUZ( theXCurv, aProfileDir, theMinZ, theTopZ );
716 theWidthCurve.reserve( psize );
719 // for each discrete value of z we search intersection with profile
720 for( double z1 = theMinZ; z1 <= theMaxZ; z1 += theDDZ )
722 Handle(Geom2d_Line) aLine = new Geom2d_Line( gp_Pnt2d( 0, z1 ), gp_Dir2d( 1, 0 ) );
723 std::set<double> intersections;
724 for( size_t i = 0; i < n; i++ )
726 Handle(Geom2d_Curve) aCurve = curves[i];
727 Geom2dAPI_InterCurveCurve anIntersect( aCurve, aLine, theTolerance );
728 for( int k=1, m=anIntersect.NbPoints(); k<=m; k++ )
729 intersections.insert( anIntersect.Point( k ).X() );
732 intersection_nb = intersections.size();
733 if( intersection_nb >= 1 )
736 if( !CalcMidWidth( intersections, u_mid, u_wid ) )
739 double z = z1 - theMinZ;
743 theMidPointCurve.push_back( p_mid );
748 theWidthCurve.push_back( p_wid );
753 void HYDROData_DTM::Interpolate( const CurveUZ& theCurveA, const CurveUZ& theCurveB,
754 int theNbSteps, std::vector<CurveUZ>& theInterpolation,
757 theInterpolation.clear();
758 int d = isAddSecond ? 2 : 1;
759 theInterpolation.reserve( theNbSteps+d );
760 double dt = 1.0 / double( theNbSteps + 1 );
762 theInterpolation.push_back( theCurveA );
763 for( int i=0; i<theNbSteps; i++, t+=dt )
765 CurveUZ anInterp = theCurveA*(1-t) + theCurveB*t;
766 theInterpolation.push_back( anInterp );
769 theInterpolation.push_back( theCurveB );
771 #include <BRepLib_MakeEdge2d.hxx>
772 void HYDROData_DTM::CurveTo3D( const Handle(Geom2d_BSplineCurve)& theHydraulicAxis,
773 const CurveUZ& theMidCurve, const CurveUZ& theWidthCurve,
774 AltitudePoints& thePoints )
776 Geom2dAdaptor_Curve anAdaptor( theHydraulicAxis );
777 TopoDS_Edge E2d = BRepLib_MakeEdge2d(theHydraulicAxis).Edge();
778 GCPnts_AbscissaPoint ap( anAdaptor, theMidCurve.Xcurv(), anAdaptor.FirstParameter() );
779 double aParam = ap.Parameter();
782 anAdaptor.D0( aParam, point );
783 gp_Vec2d profile_dir = theMidCurve.ProfileDir();
784 //gp_Dir tangent_n( -profile_dir.Y(), profile_dir.X(), dz );
785 profile_dir.Normalize();
787 size_t n = theMidCurve.size();
788 std::map<double, AltitudePoint> sorted_points;
789 bool isOnTop = false;
790 for( size_t i=0; i<n; i++ ) // build the two banks of the interpolated profile, from bottom to top
792 double param1 = theMidCurve[i].U - theWidthCurve[i].U / 2;
793 double param2 = theMidCurve[i].U + theWidthCurve[i].U / 2;
795 gp_Pnt2d p1 = point.Translated( param1 * profile_dir);
796 gp_Pnt2d p2 = point.Translated( param2 * profile_dir);
798 bool arrivedOnTop = false;
800 if (theMidCurve[i].Z <= theMidCurve.MaxZ())
801 z = theMidCurve[i].Z + theMidCurve.DeltaZ();
804 z = theMidCurve.MaxZ() + theMidCurve.DeltaZ(); // limit z to linear interpolation between maxima on extremity profiles
805 arrivedOnTop = true; // do not keep points after this one
809 AltitudePoint p3d_1( p1.X(), p1.Y(), z ), p3d_2( p2.X(), p2.Y(), z );
811 sorted_points[param1] = p3d_1;
812 sorted_points[param2] = p3d_2;
815 // isOnTop =true; // do not keep points after this one (commented: leads to strange limits of 2D shape)
818 thePoints.reserve( sorted_points.size() );
819 const double EPS = 1E-12;
820 std::map<double, AltitudePoint>::const_iterator it = sorted_points.begin(), last = sorted_points.end();
821 for( ; it!=last; it++ )
822 if( thePoints.empty() || thePoints.back().SquareDistance( it->second ) > EPS )
823 thePoints.push_back( it->second );
826 inline double max( double a, double b )
834 inline double min( double a, double b )
842 #include <BRepLib_MakeWire.hxx>
844 std::vector<HYDROData_Bathymetry::AltitudePoints> HYDROData_DTM::Interpolate
845 ( const Handle(Geom2d_BSplineCurve)& theHydraulicAxis,
846 const Handle(HYDROData_Profile)& theProfileA,
848 const Handle(HYDROData_Profile)& theProfileB,
850 double theDDZ, int theNbSteps, bool isAddSecond,
851 int& inter_nb_1, int& inter_nb_2)
853 double zminA, zmaxA, zminB, zmaxB;
854 gp_Pnt lowestA, lowestB;
857 GetProperties( theProfileA, lowestA, dirA, zminA, zmaxA );
858 GetProperties( theProfileB, lowestB, dirB, zminB, zmaxB );
861 double hmax = max( zmaxA-zminA, zmaxB-zminB );
863 //double dz = zminB - zminA;
864 //double zmin = min( zminA, zminB );
865 //double zmax = max( zmaxA, zmaxB );
867 CurveUZ midA(0, gp_Vec2d(), 0, 0), midB(0, gp_Vec2d(), 0, 0);
868 CurveUZ widA(0, gp_Vec2d(), 0, 0), widB(0, gp_Vec2d(), 0, 0);
870 ProfileDiscretization( theProfileA, theXCurvA, zminA, zminA+hmax, zmaxA-zminA, theDDZ, midA, widA, inter_nb_1 );
871 ProfileDiscretization( theProfileB, theXCurvB, zminB, zminB+hmax, zmaxB-zminB, theDDZ, midB, widB, inter_nb_2 );
873 std::vector<CurveUZ> mid, wid;
874 Interpolate( midA, midB, theNbSteps, mid, isAddSecond );
875 Interpolate( widA, widB, theNbSteps, wid, isAddSecond );
877 size_t p = mid.size();
878 size_t q = p>0 ? 2*mid[0].size() : 1;
879 std::vector<AltitudePoints> points;
882 for( size_t i=0; i<p; i++ )
884 points[i].reserve( q );
885 CurveTo3D( theHydraulicAxis, mid[i], wid[i], points[i] );
891 HYDROData_Bathymetry::AltitudePoints HYDROData_DTM::Interpolate
892 ( const std::vector<Handle(HYDROData_Profile)>& theProfiles,
893 double theDDZ, double theSpatialStep,
894 AltitudePoints& theLeft,
895 AltitudePoints& theRight,
896 std::vector<AltitudePoints>& theMainProfiles,
897 std::set<int>& invalInd)
899 AltitudePoints points;
900 size_t n = theProfiles.size();
904 std::vector<double> distances;
905 Handle(Geom2d_BSplineCurve) aHydraulicAxis = CreateHydraulicAxis( theProfiles, distances );
906 if( aHydraulicAxis.IsNull() )
909 theMainProfiles.reserve( n );
911 for( size_t i=0, n1=n-1; i<n1; i++ )
913 double aDistance = distances[i+1]-distances[i];
914 int aNbSteps = int(aDistance/theSpatialStep);
915 bool isAddSecond = i==n1-1;
917 // 1. Calculate interpolated profiles
918 int inter_nb_1, inter_nb_2;
919 std::vector<AltitudePoints> local_points = Interpolate( aHydraulicAxis, theProfiles[i], distances[i],
920 theProfiles[i+1], distances[i+1], theDDZ, aNbSteps, isAddSecond, inter_nb_1, inter_nb_2 );
921 int lps = local_points.size();
927 invalInd.insert(i+1);
929 // 2. Put all points into the global container
930 for( size_t j=0; j<lps; j++ )
932 const AltitudePoints& lp = local_points[j];
934 points.reserve( lp.size() * n );
935 for( size_t k=0, ks=lp.size(); k<ks; k++ )
936 points.push_back( lp[k] );
939 // 3. Get left/right banks' points
942 theLeft.reserve( lps * n );
943 theRight.reserve( lps * n );
945 for( size_t j=0; j<lps; j++ )
947 const AltitudePoints& lp = local_points[j];
948 theLeft.push_back( lp[0] );
949 theRight.push_back( lp[lp.size()-1] );
952 // 4. Get main profiles points
953 theMainProfiles.push_back( local_points[0] );
955 theMainProfiles.push_back( local_points[lps-1] );
960 int HYDROData_DTM::EstimateNbPoints( const std::vector<Handle(HYDROData_Profile)>& theProfiles,
961 double theDDZ, double theSpatialStep )
963 size_t n = theProfiles.size();
966 if( theDDZ<1E-6 || theSpatialStep<1E-6 )
969 std::vector<double> distances;
970 Handle(Geom2d_BSplineCurve) aHydraulicAxis = CreateHydraulicAxis( theProfiles, distances );
971 if( aHydraulicAxis.IsNull() )
974 double aCompleteDistance = distances[n-1];
975 int aNbSteps = int( aCompleteDistance / theSpatialStep ) + 1;
979 GetProperties( theProfiles[0], aLowest, aDir, aZMin, aZMax );
980 int aNbZSteps = (aZMax-aZMin)/theDDZ;
982 if( aNbSteps > ( 1<<16 ) || aNbZSteps > ( 1<<16 ) )
985 return aNbSteps * aNbZSteps;