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0024953: Draw crashed after execution of test case bugs/modalg_5/bug24764

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Reason of exception was liquidated.
This commit is contained in:
nbv 2014-05-28 11:18:27 +04:00 committed by apn
parent 2fe0e897e3
commit f379643fc0
1 changed files with 30 additions and 14 deletions
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44
src/GCPnts/GCPnts_QuasiUniformAbscissa.gxx
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@ -53,9 +53,10 @@ void GCPnts_QuasiUniformAbscissa::Initialize(TheCurve& C,
//======================================================================= //=======================================================================
//function : Initialize //function : Initialize
//purpose : //purpose : This function divides given curve on the several parts with
// equal length. It returns array of parameters in the
// control points.
//======================================================================= //=======================================================================
void GCPnts_QuasiUniformAbscissa::Initialize(TheCurve& C, void GCPnts_QuasiUniformAbscissa::Initialize(TheCurve& C,
const Standard_Integer NbPoints, const Standard_Integer NbPoints,
const Standard_Real U1, const Standard_Real U1,
@ -103,19 +104,34 @@ void GCPnts_QuasiUniformAbscissa::Initialize(TheCurve& C,
// On cherche a mettre NbPoints dans la curve. // On cherche a mettre NbPoints dans la curve.
// on met les points environ a Length/NbPoints. // on met les points environ a Length/NbPoints.
Standard_Real DCorde = Length / ( NbPoints - 1); if(IsEqual(Length, 0.0))
Standard_Real Corde = DCorde; {//use usual analytical grid
Standard_Integer Index = 1; Standard_Real aStep = (U2 - U1) / (NbPoints - 1);
Standard_Real U, Alpha; myParams = new TColStd_HArray1OfReal(1,NbPoints);
myParams = new TColStd_HArray1OfReal(1,NbPoints); myParams->SetValue(1,U1);
myParams->SetValue(1,U1); for ( i = 2; i < NbPoints; i++)
for ( i = 2; i < NbPoints; i++) { {
while ( LP(Index).X() < Corde) Index ++; myParams->SetValue(i, U1 + aStep*(i-1));
Alpha = (Corde - LP(Index-1).X()) / (LP(Index).X() - LP(Index-1).X()); }
U = LP(Index-1).Y() + Alpha * ( LP(Index).Y() - LP(Index-1).Y());
myParams->SetValue(i,U);
Corde = i*DCorde;
} }
else
{
Standard_Real DCorde = Length / ( NbPoints - 1);
Standard_Real Corde = DCorde;
Standard_Integer Index = 1;
Standard_Real U, Alpha;
myParams = new TColStd_HArray1OfReal(1,NbPoints);
myParams->SetValue(1,U1);
for ( i = 2; i < NbPoints; i++)
{
while ( LP(Index).X() < Corde) Index ++;
Alpha = (Corde - LP(Index-1).X()) / (LP(Index).X() - LP(Index-1).X());
U = LP(Index-1).Y() + Alpha * ( LP(Index).Y() - LP(Index-1).Y());
myParams->SetValue(i,U);
Corde = i*DCorde;
}
}
myParams->SetValue(NbPoints,U2); myParams->SetValue(NbPoints,U2);
myDone = Standard_True; myDone = Standard_True;
} }