qwtcurve vector

Hello all,

I have a new little trouble with QWT
usually when I want to make a curve i do this:

I put an attribute like this:

Code:

---

QwtPlotCurve myCurve;

---

in the constructor then I do:

Code:

---

myCurve.attach (myPlot1)

---

then something like

Code:

---

myCurve.setStyle (QwtPlotCurve:: Dots)

---

now I wish have a vector of curve and do the same thing

I have done in the attributes:

Code:

---

std:: vector <* QwtPlotCurve> mycurve;

---

then I do in the constructor:

Code:

---

int Nb=8;
int number=2;
for (int k = 0 k <number; + + k)
     {
         mycurve.push_back (new QwtPlotCurve ());
         mycurve [1 + k * Nb] -> attached (myPlot1);
         mycurve [1 + k * Nb] -> setStyle (QwtPlotCurve:: Dots)
         mycurve [1 + k * Nb] -> setPen (QPen (Qt:: blue, 4));
}

---

the problem is that I get an error:

mycurve Have No member "attached"

it's weird because in the first case it works with a curve too here it's just a vector of curve ?

In first case you use attach(), not attached()

Quote:

---

Originally Posted by stampede

In first case you use attach(), not attached()

---

oh! very bad error :o :o

=> thank you for this remark, i don't know why i have but this "ed" :p
thank a lot ;)

---

Added after 41 minutes:

i have still a problem:

i have testing this:

Code:

---

for ( int k = 0 ; k < nbDoubleCurve ; ++k )
    {
        mycurve.push_back(new QwtPlotCurve());
    }
 
    mycurve[0]->attach( myPlot1 );

---

but my code bug if i put this line "mycurve[0]->attach( myPlot1 );"

=> all windows are closed and i have a message from my OS that is want to close this application

EDIT:
i have tested too:

Code:

---

for ( int k = 0 ; k < nbDoubleCurve ; ++k )
    {
        QwtPlotCurve * curve = new QwtPlotCurve();
        mycurve.push_back(curve);
    }
 
    mycurve.at(0)->attach( myPlot1 );

---

or

Code:

---

for ( int k = 0 ; k < nbDoubleCurve ; ++k )
    {
        QwtPlotCurve * curve = new QwtPlotCurve();
        mycurve.push_back(curve);
    }
 
    mycurve[0]->attach( myPlot1 );

---

but i have the same error (application blocked and execution finish with the code -1073741819)

i don't know how i can make this curve vector

it's ok i use now Qvector and it works

i have a other problem with this code :

i want to plot severals curve

Code:

---

for (int i=0;i<1;i++)
           {
               int timeNb3=0;
               timeNb3=Points3_OneXtwoY[i].size();
               QVector<double> x3(timeNb3);
               QVector<double> y3(timeNb3);
               for (int z=0;z<timeNb3;z++)
               {
                   cout << "z " << z << endl;
                   cout << "i " << i << endl;
                   cout << "Points3_OneXtwoY " << Points3_OneXtwoY.size() << endl;
                   cout << "Points3_OneXtwoY[i] " << Points3_OneXtwoY[i].size() << endl;
                   cout << "Points3_OneXtwoY[i][z] " << Points3_OneXtwoY[i][z].size() << endl;
//                 x3.append( Points3_OneXtwoY[i][z][0] );
//                 y3.append( Points3_OneXtwoY[i][z][1] );
               }
           }

---

i try this code and it provide this results:

http://imageshack.us/photo/my-images/39/consoleaf.jpg/

so if i decomment the line in the previous code, it should not be error ?

=> when i run this code i have this error:
http://imageshack.us/photo/my-images/217/errorpvk.jpg/


it's strange what this code don't work because this code works nice:

Code:

---

int timeNb4=Points2_OneXtwoY.size();
          QVector<double> x4(timeNb4);
          QVector<double> y4(timeNb4);
          //i fill Qvectors
          for (int z=0;z<timeNb4;z++)
          {
             x4.append( Points2_OneXtwoY[z][0] );
             y4.append( Points2_OneXtwoY[z][1] );
          }
          myPlot4->replot();
          Total.setSamples(x4.data(),y4.data(),x4.size());
          repaint();

---

i have only one difference betwen this codes: the declaration of curve in the header:

Code:

---

QVector< QwtPlotCurve* > mycurve;
    QwtPlotCurve Total;

---

can you help me for this problem? thank you