#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <TColgp_Array1OfPnt.hxx>
+#include <Geom2dAPI_InterCurveCurve.hxx>
+#include <Geom2dAPI_ProjectPointOnCurve.hxx>
+#include <Geom2dAdaptor_Curve.hxx>
+#include <GCPnts_AbscissaPoint.hxx>
+#include <limits>
IMPLEMENT_STANDARD_HANDLE( HYDROData_DTM, HYDROData_Bathymetry )
IMPLEMENT_STANDARD_RTTIEXT( HYDROData_DTM, HYDROData_Bathymetry )
+
+HYDROData_DTM::CurveUZ::CurveUZ( double theXCurv )
+ : myXcurv( theXCurv )
+{
+}
+
+HYDROData_DTM::CurveUZ::~CurveUZ()
+{
+}
+
+double HYDROData_DTM::CurveUZ::Xcurv() const
+{
+ return myXcurv;
+}
+
+HYDROData_DTM::CurveUZ HYDROData_DTM::CurveUZ::operator + ( const CurveUZ& c ) const
+{
+ HYDROData_DTM::CurveUZ res( Xcurv() + c.Xcurv() );
+ size_t n = size();
+ res.reserve( n );
+ for( int i=0; i<n; i++ )
+ {
+ PointUZ p;
+ p.U = operator[]( i ).U + c[i].U;
+ p.Z = operator[]( i ).Z;
+ res.push_back( p );
+ }
+ return res;
+}
+
+HYDROData_DTM::CurveUZ HYDROData_DTM::CurveUZ::operator * ( double d ) const
+{
+ HYDROData_DTM::CurveUZ res( Xcurv()*d );
+ size_t n = size();
+ res.reserve( n );
+ for( int i=0; i<n; i++ )
+ {
+ PointUZ p;
+ p.U = operator[]( i ).U * d;
+ p.Z = operator[]( i ).Z;
+ res.push_back( p );
+ }
+ return res;
+}
+
+
+
HYDROData_DTM::HYDROData_DTM()
{
}
{
}
+HYDROData_SequenceOfObjects HYDROData_DTM::GetProfiles() const
+{
+ return GetReferenceObjects( DataTag_Profiles );
+}
+
+void HYDROData_DTM::SetProfiles( const HYDROData_SequenceOfObjects& theProfiles )
+{
+ SetReferenceObjects( theProfiles, DataTag_Profiles );
+}
+
+double HYDROData_DTM::GetDDZ() const
+{
+ return GetDouble( DataTag_DDZ );
+}
-void GetProperties( const Handle_HYDROData_Profile& theProfile,
- gp_Pnt& theLowestPoint,
- gp_Vec2d& theDir,
- bool isNormalDir )
+void HYDROData_DTM::SetDDZ( double theDDZ )
+{
+ SetDouble( DataTag_DDZ, theDDZ );
+}
+
+double HYDROData_DTM::GetSpatialStep() const
+{
+ return GetDouble( DataTag_SpatialStep );
+}
+
+void HYDROData_DTM::SetSpatialStep( double theSpatialStep )
+{
+ SetDouble( DataTag_SpatialStep, theSpatialStep );
+}
+
+void HYDROData_DTM::Update()
+{
+ HYDROData_SequenceOfObjects objs = GetProfiles();
+ int aLower = objs.Lower(), anUpper = objs.Upper();
+ size_t n = anUpper-aLower+1;
+
+ std::vector<Handle_HYDROData_Profile> profiles;
+ profiles.reserve( n );
+ for( int i=aLower; i<=anUpper; i++ )
+ {
+ Handle(HYDROData_Profile) aProfile = Handle(HYDROData_Profile)::DownCast( objs.Value( i ) );
+ if( !aProfile.IsNull() )
+ profiles.push_back( aProfile );
+ }
+
+ double ddz = GetDDZ();
+ double step = GetSpatialStep();
+ const double EPS = 1E-3;
+ AltitudePoints points;
+ if( ddz>EPS && step>EPS )
+ points = Interpolate( profiles, ddz, step );
+ SetAltitudePoints( points );
+}
+
+
+
+
+
+
+
+
+
+
+void HYDROData_DTM::GetProperties( const Handle_HYDROData_Profile& theProfile,
+ gp_Pnt& theLowestPoint, gp_Vec2d& theDir,
+ bool isNormalDir,
+ double& theZMin, double& theZMax )
{
theLowestPoint = theProfile->GetBottomPoint();
theDir = gp_Vec2d( -y, x );
else
theDir = gp_Vec2d( x, y );
+
+ HYDROData_Profile::ProfilePoints points = theProfile->GetProfilePoints();
+ int lo = points.Lower();
+ int up = points.Upper();
+ theZMin = std::numeric_limits<double>::max();
+ theZMax = -theZMin;
+ for( int i=lo; i<=up; i++ )
+ {
+ double z = points.Value( i ).Z();
+ if( z>theZMax )
+ theZMax = z;
+ if( z<theZMin )
+ theZMin = z;
+ }
}
-inline gp_Pnt2d To2D( const gp_Pnt& thePnt, const gp_Trsf& theTr )
+inline gp_Pnt2d To2D( const gp_Pnt& thePnt, const gp_Trsf& theTr,
+ double& theUMin, double& theUMax )
{
gp_Pnt p = thePnt.Transformed( theTr );
- return gp_Pnt2d( p.X(), p.Z() );
+ double u = p.X();
+ double z = p.Z();
+ if( u<theUMin )
+ theUMin = u;
+ if( u>theUMax )
+ theUMax = u;
+ return gp_Pnt2d( u, z );
}
-Handle(TColgp_HArray1OfPnt2d) To2D( const TColgp_Array1OfPnt& thePoints, const gp_Trsf& theTr )
+Handle(TColgp_HArray1OfPnt2d) To2D( const TColgp_Array1OfPnt& thePoints,
+ const gp_Trsf& theTr,
+ double& theUMin, double& theUMax )
{
int low = thePoints.Lower(), up = thePoints.Upper();
Handle(TColgp_HArray1OfPnt2d) points = new TColgp_HArray1OfPnt2d( low, up );
for( int i=low; i<=up; i++ )
- points->SetValue( i, To2D( thePoints.Value( i ), theTr ) );
+ points->SetValue( i, To2D( thePoints.Value( i ), theTr, theUMin, theUMax ) );
return points;
}
Handle(Geom2d_Curve) CurveTo2D( const Handle(Geom_Curve)& theCurve,
Standard_Real theFirst, Standard_Real theLast,
- const gp_Trsf& theTr )
+ const gp_Trsf& theTr,
+ double& theUMin, double& theUMax )
{
if( theCurve->IsKind( STANDARD_TYPE( Geom_Line ) ) )
{
theCurve->D0( theLast, aLastPnt );
gp_Pnt2d
- aFirst2d = To2D( aFirstPnt, theTr ),
- aLast2d = To2D( aLastPnt, theTr );
+ aFirst2d = To2D( aFirstPnt, theTr, theUMin, theUMax ),
+ aLast2d = To2D( aLastPnt, theTr, theUMin, theUMax );
gp_Vec2d dir( aFirst2d, aLast2d );
Handle_Geom2d_Line aLine2d = new Geom2d_Line( aFirst2d, gp_Dir2d( dir.X(), dir.Y() ) );
{
Handle(Geom_BSplineCurve) aSpline = Handle(Geom_BSplineCurve)::DownCast( theCurve );
- Handle(TColgp_HArray1OfPnt2d) poles = To2D( aSpline->Poles(), theTr );
+ Handle(TColgp_HArray1OfPnt2d) poles = To2D( aSpline->Poles(), theTr, theUMin, theUMax );
const TColStd_Array1OfReal& knots = aSpline->Knots();
const TColStd_Array1OfInteger& multiplicities = aSpline->Multiplicities();
int aDegree = aSpline->Degree();
}
Handle_Geom2d_BSplineCurve HYDROData_DTM::CreateHydraulicAxis(
- const std::vector<Handle_HYDROData_Profile>& theProfiles )
+ const std::vector<Handle_HYDROData_Profile>& theProfiles,
+ std::vector<double>& theDistances )
{
size_t n = theProfiles.size();
Handle_Geom2d_BSplineCurve aResult;
for( size_t i = 1; i <= n; i++ )
{
Handle_HYDROData_Profile aProfile = theProfiles[i-1];
+ aProfile->Update();
+
gp_Pnt aLowest;
gp_Vec2d aTangent;
- GetProperties( aProfile, aLowest, aTangent, true );
+ double zmin, zmax;
+ GetProperties( aProfile, aLowest, aTangent, true, zmin, zmax );
aTangent.Normalize();
points->SetValue( (int)i, gp_Pnt2d( aLowest.X(), aLowest.Y() ) );
anInterpolator.Load( tangents, flags );
anInterpolator.Perform();
if( anInterpolator.IsDone() )
+ {
aResult = anInterpolator.Curve();
+
+ //fill the distances vector
+ Geom2dAdaptor_Curve anAdaptor( aResult );
+
+ theDistances.clear();
+ theDistances.reserve( n );
+ Standard_Real aParamFirst = anAdaptor.FirstParameter(), aParamLast = anAdaptor.LastParameter();
+ for( size_t i = 1; i <= n; i++ )
+ {
+ gp_Pnt2d aPnt = points->Value( i );
+ Geom2dAPI_ProjectPointOnCurve aProject( aPnt, aResult );
+ Standard_Real aParam = aProject.LowerDistanceParameter();
+ double aDistance = GCPnts_AbscissaPoint::Length( anAdaptor, aParamFirst, aParam );
+ theDistances.push_back( aDistance );
+ }
+ }
return aResult;
}
-std::vector<Handle_Geom2d_Curve> HYDROData_DTM::ProfileToParametric( const Handle_HYDROData_Profile& theProfile )
+std::vector<Handle_Geom2d_Curve> HYDROData_DTM::ProfileToParametric(
+ const Handle_HYDROData_Profile& theProfile,
+ double& theUMin, double& theUMax )
{
std::vector<Handle_Geom2d_Curve> curves;
- theProfile->Update();
// Transformation of the coordinate systems
gp_Pnt aLowest;
gp_Vec2d aDir;
- GetProperties( theProfile, aLowest, aDir, false );
+ double zmin, zmax;
+ GetProperties( theProfile, aLowest, aDir, false, zmin, zmax );
gp_Ax3 aStd3d( gp_Pnt( 0, 0, 0 ), gp_Dir( 0, 0, 1 ), gp_Dir( 1, 0, 0 ) );
gp_Ax3 aLocal( aLowest, gp_Dir( 0, 0, 1 ), gp_Dir( aDir.X(), aDir.Y(), 0 ) );
Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aLoc, aFirst, aLast );
// Convert the curve to 2d CS
- Handle(Geom2d_Curve) aCurve2d = CurveTo2D( aCurve, aFirst, aLast, aTransf );
+ Handle(Geom2d_Curve) aCurve2d = CurveTo2D( aCurve, aFirst, aLast, aTransf, theUMin, theUMax );
if( !aCurve2d.IsNull() )
curves.push_back( aCurve2d );
}
return curves;
}
+
+double CalcGC( const std::vector<gp_Pnt2d>& intersections )
+{
+ double u = 0;
+ size_t n = intersections.size();
+ for( size_t i = 0; i < n; i++ )
+ {
+ u += intersections[i].X();
+ }
+ u /= n;
+ return u;
+}
+
+double CalcWidth( const std::vector<gp_Pnt2d>& intersections )
+{
+ double umin = std::numeric_limits<double>::max(),
+ umax = -umin;
+
+ size_t n = intersections.size();
+ if( n <= 1 )
+ return 0;
+
+ for( size_t i = 0; i < n; i++ )
+ {
+ double u = intersections[i].X();
+ if( u<umin )
+ umin = u;
+ if( u>umax )
+ umax = u;
+ }
+ return umax-umin;
+}
+
void HYDROData_DTM::ProfileDiscretization( const Handle_HYDROData_Profile& theProfile,
- double theMinZ, double theMaxZ, double theDDZ,
+ double theXCurv, double theMinZ, double theMaxZ, double theDDZ,
CurveUZ& theMidPointCurve,
- CurveUZ& theWidthCurve )
+ CurveUZ& theWidthCurve,
+ double theTolerance )
{
- /*for( double z = theMinZ; z<=theMaxZ; z += theDDZ )
+ double aDblMax = std::numeric_limits<double>::max(),
+ aUMin = aDblMax,
+ aUMax = -aUMin,
+ aVMax = 1000000;
+
+ std::vector<Handle_Geom2d_Curve> curves = ProfileToParametric( theProfile, aUMin, aUMax );
+ size_t n = curves.size();
+
+ if( n==0 )
+ return;
+
+ // we add the "virtual" vertical lines to simulate the intersection with profile
+ gp_Pnt2d aFirst, aLast;
+ curves[0]->D0( curves[0]->FirstParameter(), aFirst );
+ curves[n-1]->D0( curves[n-1]->LastParameter(), aLast );
+ Handle(Geom2d_Line) aV1 = new Geom2d_Line( aFirst, gp_Dir2d( 0, 1 ) );
+ Handle(Geom2d_TrimmedCurve) aT1 = new Geom2d_TrimmedCurve( aV1, 0.0, aVMax );
+
+ Handle(Geom2d_Line) aV2 = new Geom2d_Line( aLast, gp_Dir2d( 0, 1 ) );
+ Handle(Geom2d_TrimmedCurve) aT2 = new Geom2d_TrimmedCurve( aV2, 0.0, aVMax );
+
+ curves.push_back( aT1 );
+ curves.push_back( aT2 );
+
+ int psize = ( int )( ( theMaxZ-theMinZ ) / theDDZ + 1 );
+ theMidPointCurve = CurveUZ( theXCurv );
+ theMidPointCurve.reserve( psize );
+ theWidthCurve = CurveUZ( theXCurv );
+ theWidthCurve.reserve( psize );
+
+ n = curves.size();
+ // for each discrete value of z we search intersection with profile
+ for( double z = theMinZ; z <= theMaxZ; z += theDDZ )
{
+ Handle(Geom2d_Line) aLine = new Geom2d_Line( gp_Pnt2d( 0, z ), gp_Dir2d( 1, 0 ) );
+ std::vector<gp_Pnt2d> intersections;
+ for( size_t i = 0; i < n; i++ )
+ {
+ Handle_Geom2d_Curve aCurve = curves[i];
+ Geom2dAPI_InterCurveCurve anIntersect( aCurve, aLine, theTolerance );
+ for( int k=1, m=anIntersect.NbPoints(); k<=m; k++ )
+ intersections.push_back( anIntersect.Point( k ) );
+ }
- }*/
+ if( intersections.size() >= 2 )
+ {
+ double u_mid = CalcGC( intersections );
+ PointUZ p_mid;
+ p_mid.U = u_mid;
+ p_mid.Z = z;
+ theMidPointCurve.push_back( p_mid );
+
+ double u_wid = CalcWidth( intersections );
+ PointUZ p_wid;
+ p_wid.U = u_wid;
+ p_wid.Z = z;
+ theWidthCurve.push_back( p_wid );
+ }
+ }
}
void HYDROData_DTM::Interpolate( const CurveUZ& theCurveA, const CurveUZ& theCurveB,
- int theNbSteps, std::vector<CurveUZ>& theInterpolation )
+ int theNbSteps, std::vector<CurveUZ>& theInterpolation,
+ bool isAddSecond )
+{
+ theInterpolation.clear();
+ int d = isAddSecond ? 2 : 1;
+ theInterpolation.reserve( theNbSteps+d );
+ double dt = 1.0 / double( theNbSteps + 1 );
+ double t = dt;
+ theInterpolation.push_back( theCurveA );
+ for( int i=0; i<theNbSteps; i++, t+=dt )
+ {
+ CurveUZ anInterp = theCurveA*(1-t) + theCurveB*t;
+ theInterpolation.push_back( anInterp );
+ }
+ if( isAddSecond )
+ theInterpolation.push_back( theCurveB );
+}
+
+void HYDROData_DTM::CurveTo3D( const Handle_Geom2d_BSplineCurve& theHydraulicAxis,
+ const CurveUZ& theMidCurve, const CurveUZ& theWidthCurve,
+ AltitudePoints& thePoints )
{
+ Geom2dAdaptor_Curve anAdaptor( theHydraulicAxis );
+ GCPnts_AbscissaPoint ap( anAdaptor, theMidCurve.Xcurv(), anAdaptor.FirstParameter() );
+ double aParam = ap.Parameter();
+
+ gp_Pnt2d point;
+ gp_Vec2d tangent, profile_dir;
+ anAdaptor.D1( aParam, point, tangent );
+ profile_dir.SetCoord( tangent.Y(), -tangent.X() );
+ profile_dir.Normalize();
+
+ size_t n = theMidCurve.size();
+ for( size_t i=0; i<n; i++ )
+ {
+ double param1 = theMidCurve[i].U - theWidthCurve[i].U / 2;
+ double param2 = theMidCurve[i].U + theWidthCurve[i].U / 2;
+
+ gp_Pnt2d p1 = point.Translated( param1 * profile_dir / 2 );
+ gp_Pnt2d p2 = point.Translated( param2 * profile_dir / 2 );
+
+ double z = theMidCurve[i].Z;
+
+ AltitudePoint p3d_1( p1.X(), p1.Y(), z ), p3d_2( p2.X(), p2.Y(), z );
+ thePoints.push_back( p3d_1 );
+ thePoints.push_back( p3d_2 );
+ }
}
-void HYDROData_DTM::CurveTo3d( const CurveUZ& theCurve, const CurveUZ& theCurveB,
- int theNbSteps, std::vector<CurveUZ>& theInterpolation )
+inline double max( double a, double b )
{
+ if( a>b )
+ return a;
+ else
+ return b;
+}
+
+HYDROData_Bathymetry::AltitudePoints HYDROData_DTM::Interpolate
+ ( const Handle_Geom2d_BSplineCurve& theHydraulicAxis,
+ const Handle_HYDROData_Profile& theProfileA,
+ double theXCurvA,
+ const Handle_HYDROData_Profile& theProfileB,
+ double theXCurvB,
+ double theDDZ, int theNbSteps, bool isAddSecond )
+{
+ double zminA, zmaxA, zminB, zmaxB;
+ gp_Pnt lowestA, lowestB;
+ gp_Vec2d dirA, dirB;
+
+ GetProperties( theProfileA, lowestA, dirA, false, zminA, zmaxA );
+ GetProperties( theProfileB, lowestB, dirB, false, zminB, zmaxB );
+
+ double zmin = max( zminA, zminB );
+ double zmax = max( zmaxA, zmaxB );
+
+ CurveUZ midA(0), midB(0);
+ CurveUZ widA(0), widB(0);
+
+ ProfileDiscretization( theProfileA, theXCurvA, zmin, zmax, theDDZ, midA, widA );
+ ProfileDiscretization( theProfileB, theXCurvB, zmin, zmax, theDDZ, midB, widB );
+
+ std::vector<CurveUZ> mid, wid;
+ Interpolate( midA, midB, theNbSteps, mid, isAddSecond );
+ Interpolate( widA, widB, theNbSteps, wid, isAddSecond );
+
+ size_t p = mid.size();
+ size_t q = p>0 ? 2*mid[0].size() : 1;
+ AltitudePoints points;
+ points.reserve( p*q );
+ for( size_t i=0; i<p; i++ )
+ CurveTo3D( theHydraulicAxis, mid[i], wid[i], points );
+ return points;
+}
+
+HYDROData_Bathymetry::AltitudePoints HYDROData_DTM::Interpolate
+ ( const std::vector<Handle_HYDROData_Profile>& theProfiles,
+ double theDDZ, double theSpatialStep )
+{
+ AltitudePoints points;
+ size_t n = theProfiles.size();
+ if( n<=1 )
+ return points;
+
+ std::vector<double> distances;
+ Handle_Geom2d_BSplineCurve aHydraulicAxis = CreateHydraulicAxis( theProfiles, distances );
+ if( aHydraulicAxis.IsNull() )
+ return points;
+
+ for( size_t i=0, n1=n-1; i<n1; i++ )
+ {
+ double aDistance = distances[i+1]-distances[i];
+ int aNbSteps = int(aDistance/theSpatialStep) + 1;
+ bool isAddSecond = i==n1-1;
+ AltitudePoints local_points = Interpolate( aHydraulicAxis, theProfiles[i], distances[i],
+ theProfiles[i+1], distances[i+1], theDDZ, aNbSteps, isAddSecond );
+ if( i==0 )
+ points.reserve( local_points.size() * ( n-1 ) );
+ for( size_t j=0, m=local_points.size(); j<m; j++ )
+ points.push_back( local_points[j] );
+ }
+ return points;
}
