#include <StdMeshersGUI_DistrPreview.h>

Inheritance diagram for StdMeshersGUI_DistrPreview:

Public Types
enum	Conversion { EXPONENT, CUT_NEGATIVE }
Public Member Functions
	StdMeshersGUI_DistrPreview (QWidget *, StdMeshers::StdMeshers_NumberOfSegments_ptr)
virtual	~StdMeshersGUI_DistrPreview ()
QString	function () const
bool	isTableFunc () const
void	tableFunc (SMESH::double_array &) const
int	pointsCount () const
int	nbSeg () const
bool	isDone () const
bool	setParams (const QString &, const int, const int=50, const bool=true)
bool	setParams (const SMESH::double_array &, const int, const bool=true)
void	setConversion (Conversion, const bool=true)
Protected Member Functions
virtual bool	init (const QString &)
virtual double	funcValue (const double, bool &)
virtual bool	createTable (SMESH::double_array &)
virtual bool	convert (double &) const
void	update ()
Private Member Functions
double	calc (bool &)
void	showError ()
	Handle (ExprIntrp_GenExp) myExpr
Private Attributes
QString	myFunction
int	myPoints
int	myNbSeg
bool	myIsTable
Conversion	myConv
SMESH::double_array	myTableFunc
QwtPlotCurve *	myDensity
QwtPlotCurve *	myDistr
QwtPlotMarker *	myMsg
Expr_Array1OfNamedUnknown	myVars
TColStd_Array1OfReal	myValues
bool	myIsDone
StdMeshers::StdMeshers_NumberOfSegments_var	myHypo

Detailed Description

Definition at line 48 of file StdMeshersGUI_DistrPreview.h.

Member Enumeration Documentation

enum StdMeshersGUI_DistrPreview::Conversion

Enumerator:

EXPONENT
CUT_NEGATIVE

Definition at line 53 of file StdMeshersGUI_DistrPreview.h.

{ EXPONENT, CUT_NEGATIVE }  Conversion;

Constructor & Destructor Documentation

StdMeshersGUI_DistrPreview::StdMeshersGUI_DistrPreview	(	QWidget *	p,
		StdMeshers::StdMeshers_NumberOfSegments_ptr	h
	)

Definition at line 58 of file StdMeshersGUI_DistrPreview.cxx.

References myDensity, myDistr, myHypo, myMsg, and myVars.

: QwtPlot( p ),
  myPoints( 50 ),
  myIsTable( false ),
  myVars( 1, 1 ),
  myValues( 1, 1 ),
  myConv( CUT_NEGATIVE ),
  myIsDone( true ),
  myNbSeg( 1 )
{
  Kernel_Utils::Localizer loc;
  myHypo = StdMeshers::StdMeshers_NumberOfSegments::_duplicate( h );
  myVars.ChangeValue( 1 ) = new Expr_NamedUnknown( "t" );
  myDensity = new QwtPlotCurve( QString() );
  myDensity->attach( this );
  myDistr = new QwtPlotCurve( QString() );
  myDistr->attach( this );
  myMsg = new QwtPlotMarker();
  myMsg->attach( this );
  myMsg->setValue( 0.5, 0.5 );
  QwtText mt = myMsg->label();
  mt.setBackgroundPen( QPen( Qt::red, 1 ) );
  QFont f = mt.font();
  f.setPointSize( 14 ); //f.setBold( true );
  mt.setFont( f );
  myMsg->setLabel( mt );
  myDensity->setPen( QPen( Qt::red, 1 ) );

  QColor dc = Qt::blue;
  myDistr->setPen( QPen( dc, 1 ) );
  myDistr->setSymbol( QwtSymbol( QwtSymbol::XCross, QBrush( dc ), QPen( dc ), QSize( 5, 5 ) ) );

  QwtLegend* l = legend();
  if ( !l ) {
    l = new QwtLegend( this );
    l->setFrameStyle( QFrame::Box | QFrame::Sunken );
  }
  insertLegend( l, QwtPlot::BottomLegend );

  enableAxis(QwtPlot::yLeft, false);
  enableAxis(QwtPlot::yRight, true);
  
  QFont axisFont;
  axisFont.setPointSize( 8 );
  setAxisFont(QwtPlot::yRight, axisFont); 
  setAxisFont(QwtPlot::xBottom, axisFont); 
  
  myDensity->setYAxis(QwtPlot::yRight);
  myDistr->setYAxis(QwtPlot::yRight);
  myMsg->setYAxis(QwtPlot::yRight);
  myDensity->setTitle( tr( "SMESH_DENSITY_FUNC" ) );
  myDistr->setTitle( tr( "SMESH_DISTR" ) );
  
  QwtPlotGrid* aGrid = new QwtPlotGrid();
  QPen aMajPen = aGrid->majPen();
  aMajPen.setStyle( Qt::DashLine );
  aGrid->setPen( aMajPen );

  aGrid->enableX( true );
  aGrid->enableY( true );

  aGrid->attach( this );
}

StdMeshersGUI_DistrPreview::~StdMeshersGUI_DistrPreview ( ) [virtual]

Definition at line 122 of file StdMeshersGUI_DistrPreview.cxx.

{
}

Member Function Documentation

double StdMeshersGUI_DistrPreview::calc ( bool & ok ) [private]

Definition at line 412 of file StdMeshersGUI_DistrPreview.cxx.

References Handle(), myValues, myVars, and SMESH_AdvancedEditor.res.

Referenced by funcValue().

{
  double res = 0.0;

  ok = true;
  try {   
#ifdef NO_CAS_CATCH
    OCC_CATCH_SIGNALS;
#endif
    res = myExpr->Expression()->Evaluate( myVars, myValues );
  } catch(Standard_Failure) {
    Handle(Standard_Failure) aFail = Standard_Failure::Caught();
    ok = false;
    res = 0.0;
  }

  return res;
}

bool StdMeshersGUI_DistrPreview::convert ( double & v ) const [protected, virtual]

Definition at line 436 of file StdMeshersGUI_DistrPreview.cxx.

References CUT_NEGATIVE, EXPONENT, Handle(), and myConv.

Referenced by update().

{
  bool ok = true;
  switch( myConv )
  {
  case EXPONENT:
    {
      try { 
#ifdef NO_CAS_CATCH
        OCC_CATCH_SIGNALS;
#endif
        // in StdMeshers_NumberOfSegments.cc
        // const double PRECISION = 1e-7;
        //
        if(v < -7) v = -7.0;
        v = pow( 10.0, v );
      } catch(Standard_Failure) {
        Handle(Standard_Failure) aFail = Standard_Failure::Caught();
        v = 0.0;
        ok = false;
      }
    }
    break;

  case CUT_NEGATIVE:
    if( v<0 )
      v = 0;
    break;
  }

  return ok;
}

bool StdMeshersGUI_DistrPreview::createTable ( SMESH::double_array & func ) [protected, virtual]

Definition at line 188 of file StdMeshersGUI_DistrPreview.cxx.

References ex13_hole1partial.d, funcValue(), and myPoints.

Referenced by update().

{
  if( myExpr.IsNull() )
  {
    func.length( 0 );
    return false;
  }

  const double xmin = 0.0, xmax = 1.0;

  double d = (xmax-xmin)/double(myPoints-1);
  func.length( 2*myPoints );
  int err = 0;
  for( int i=0, j=0; i<myPoints; j++ )
  {
    bool ok;
    double t = xmin + d*j, f = funcValue( t, ok );
    if( ok )
    {
      func[2*i] = t;
      func[2*i+1] = f;
      i++;
    }
    else
      err++;
  }
  func.length( func.length()-2*err );
  return err==0;
}

QString StdMeshersGUI_DistrPreview::function ( ) const

Definition at line 136 of file StdMeshersGUI_DistrPreview.cxx.

References myFunction.

{
  return myFunction;
}

double StdMeshersGUI_DistrPreview::funcValue	(	const double	t,
		bool &	ok
	)		`[protected, virtual]`

Definition at line 399 of file StdMeshersGUI_DistrPreview.cxx.

References calc(), myValues, and SMESH_AdvancedEditor.res.

Referenced by createTable().

{
  if( myExpr.IsNull() )
    return 0;

  myValues.ChangeValue( 1 ) = t;

  ok = true;
  double res = calc( ok );

  return res;
}

StdMeshersGUI_DistrPreview.Handle ( ExprIntrp_GenExp ) [private]

Referenced by calc(), convert(), init(), and update().

bool StdMeshersGUI_DistrPreview::init ( const QString & str ) [protected, virtual]

Definition at line 371 of file StdMeshersGUI_DistrPreview.cxx.

References Handle(), isCorrectArg(), and SMESH_AdvancedEditor.res.

Referenced by setParams().

{
  Kernel_Utils::Localizer loc;
  bool parsed_ok = true;
  try {
#ifdef NO_CAS_CATCH
    OCC_CATCH_SIGNALS;
#endif
    myExpr = ExprIntrp_GenExp::Create();
    myExpr->Process( ( Standard_CString ) str.toLatin1().data() );
  } catch(Standard_Failure) {
    Handle(Standard_Failure) aFail = Standard_Failure::Caught();
    parsed_ok = false;
  }

  bool syntax = false, args = false;
  if( parsed_ok && myExpr->IsDone() )
  {
    syntax = true;
    args = isCorrectArg( myExpr->Expression() );
  }

  bool res = parsed_ok && syntax && args;
  if( !res )
    myExpr.Nullify();
  return res;
}

bool StdMeshersGUI_DistrPreview::isDone ( ) const

Definition at line 431 of file StdMeshersGUI_DistrPreview.cxx.

References myIsDone.

{
  return myIsDone;
}

bool StdMeshersGUI_DistrPreview::isTableFunc ( ) const

Definition at line 126 of file StdMeshersGUI_DistrPreview.cxx.

References myIsTable.

Referenced by update().

{
  return myIsTable;
}

int StdMeshersGUI_DistrPreview::nbSeg ( ) const

Definition at line 141 of file StdMeshersGUI_DistrPreview.cxx.

References myNbSeg.

{
  return myNbSeg;
}

int StdMeshersGUI_DistrPreview::pointsCount ( ) const

Definition at line 146 of file StdMeshersGUI_DistrPreview.cxx.

References myPoints.

{
  return myPoints;
}

void StdMeshersGUI_DistrPreview::setConversion	(	Conversion	conv,
		const bool	upd = `true`
	)

Definition at line 151 of file StdMeshersGUI_DistrPreview.cxx.

References myConv, and update().

Referenced by StdMeshersGUI_NbSegmentsCreator.onValueChanged().

{
  myConv = conv;
  if( upd )
    update();
}

bool StdMeshersGUI_DistrPreview::setParams	(	const SMESH::double_array &	f,
		const int	nbSeg,
		const bool	upd = `true`
	)

Definition at line 171 of file StdMeshersGUI_DistrPreview.cxx.

References myFunction, myIsTable, myNbSeg, myPoints, myTableFunc, and update().

{
  myIsTable = true;
  myTableFunc = f;
  if( myTableFunc.length()%2==1 )
    myTableFunc.length( myTableFunc.length()-1 );

  myFunction = "0";
  myPoints = myTableFunc.length()/2;
  myNbSeg = nbSeg>0 ? nbSeg : 1;

  if( upd )
    update();

  return myTableFunc.length()>0;
}

bool StdMeshersGUI_DistrPreview::setParams	(	const QString &	func,
		const int	nbSeg,
		const int	points = `50`,
		const bool	upd = `true`
	)

Definition at line 158 of file StdMeshersGUI_DistrPreview.cxx.

References init(), myFunction, myIsTable, myNbSeg, myPoints, myTableFunc, SMESH_AdvancedEditor.res, and update().

Referenced by StdMeshersGUI_NbSegmentsCreator.onValueChanged().

{
  myIsTable = false;
  myTableFunc = SMESH::double_array();
  myFunction = func.isEmpty() ? "0" : func;
  myPoints = points>0 ? points : 2;
  myNbSeg = nbSeg>0 ? nbSeg : 1;
  bool res = init( func );
  if( upd )
    update();
  return res;
}

void StdMeshersGUI_DistrPreview::showError ( ) [private]

Definition at line 337 of file StdMeshersGUI_DistrPreview.cxx.

References myDensity, myDistr, and myMsg.

Referenced by update().

{
  setAxisScale( myDensity->xAxis(), 0.0, 1.0 );
  setAxisScale( myDensity->yAxis(), 0.0, 1.0 );
  myDensity->setData( 0, 0, 0 );
  myDistr->setData( 0, 0, 0 );
  QwtText mt = myMsg->label();
  mt.setText( tr( "SMESH_INVALID_FUNCTION" ) );
  myMsg->setLabel( mt );
  replot();
}

void StdMeshersGUI_DistrPreview::tableFunc ( SMESH::double_array & f ) const

Definition at line 131 of file StdMeshersGUI_DistrPreview.cxx.

References myTableFunc.

{
  f = myTableFunc;
}

void StdMeshersGUI_DistrPreview::update ( ) [protected]

Definition at line 218 of file StdMeshersGUI_DistrPreview.cxx.

References convert(), createTable(), Handle(), isTableFunc(), myConv, myDensity, myDistr, myFunction, myHypo, myIsDone, myMsg, myNbSeg, myTableFunc, showError(), ex21_lamp.size, ex13_hole1partial.x, and ex13_hole1partial.y.

Referenced by setConversion(), and setParams().

{
  Kernel_Utils::Localizer loc;
  SMESH::double_array graph, distr;
  if( isTableFunc() )
  {
    myIsDone = true;
    graph = myTableFunc;
  }
  else
    myIsDone = createTable( graph );

  if( graph.length()>=2 )
  {
    StdMeshers::StdMeshers_NumberOfSegments_var h = 
      StdMeshers::StdMeshers_NumberOfSegments::_narrow( myHypo );

    if( !CORBA::is_nil( h.in() ) )
    {
      SMESH::double_array* arr = 0;
      if( isTableFunc() )
        arr = h->BuildDistributionTab( myTableFunc, myNbSeg, ( int )myConv );
      else
        arr = h->BuildDistributionExpr( myFunction.toLatin1().data(), myNbSeg, ( int )myConv );
      if( arr )
      {
        distr = *arr;
        delete arr;
      }
    }
  }

  bool correct = graph.length()>=2 && distr.length()>=2;
  if( !correct )
  {
    showError();
    return;
  }
  else
  {
    QwtText mt = myMsg->label();
    mt.setText( QString() );
    myMsg->setLabel( mt );
  }

  int size = graph.length()/2;
  double* x = new double[size], *y = new double[size];
  double min_x, max_x, min_y, max_y;
  for( int i=0; i<size; i++ )
  {
    x[i] = graph[2*i];
    y[i] = graph[2*i+1];
    if( !convert( y[i] ) )
    {
      min_x = 0.0; max_x = 1.0; min_y = 0.0; max_y = 1.0;
      delete[] x; delete[] y;
      x = y = 0;
      showError();
      return;
    }
#ifdef WIN32
    if ( std::fabs(y[i]) >= HUGE_VAL)
      y[i] = HUGE_VAL/100.;
#else
    if ( isinf(y[i]))
      y[i] = std::numeric_limits<double>::max()/100.;
#endif
//     if ( y[i] > 1e3 )
//       y[i] = 1e3;
    if( i==0 || y[i]<min_y )
      min_y = y[i];
    if( i==0 || y[i]>max_y )
      max_y = y[i];
    if( i==0 || x[i]<min_x )
      min_x = x[i];
    if( i==0 || x[i]>max_x )
      max_x = x[i];
  }

  setAxisScale( myDensity->xAxis(), min_x, max_x );
  setAxisScale( myDensity->yAxis(),
#ifdef WIN32
    min( 0.0, min_y ),
    max( 0.0, max_y )
#else
    std::min( 0.0, min_y ),
    std::max( 0.0, max_y )
#endif
    );
  myDensity->setData( x, y, size );
  if( x )
    delete[] x;
  if( y )
    delete[] y;
  x = y = 0;

  size = distr.length();
  x = new double[size];
  y = new double[size];
  for( int i=0; i<size; i++ )
  {
    x[i] = distr[i];
    y[i] = 0;
  }
  myDistr->setData( x, y, size );
  delete[] x;
  delete[] y;
  x = y = 0;

  try {   
#ifdef NO_CAS_CATCH
    OCC_CATCH_SIGNALS;
#endif
    replot();
  } catch(Standard_Failure) {
    Handle(Standard_Failure) aFail = Standard_Failure::Caught();
  }
}