Transferring data to QMap

[saad_saadi]

Similarly want to save a 3D variable from a .mat file.

typedef QVector<double>	QFilterDataMap1D;
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2D;	
typedef QMap<double, QFilterDataMap2D> QFilterDataMap3D;

typedef QVector<double>	QFilterDataMap1D;
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2D;	
typedef QMap<double, QFilterDataMap2D> QFilterDataMap3D;

To copy to clipboard, switch view to plain text mode 

QFilterDataMap3D data_3D

QFilterDataMap3D data_3D

To copy to clipboard, switch view to plain text mode 

I want to save a 3D variable from .mat file into data_3D QMap.

[Santosh Reddy]

This how it should be done

typedef QVector<double>	QFilterDataMap1D;
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2D;	
typedef QMap<double, QFilterDataMap2D> QFilterDataMap3D;
 
QFilterDataMap3D data_3D
 
for(int i=0;i<1025;i++)
{
    QFilterDataMap2D temp2D;
    for(int j=0;j<153;j++)
    {
        QFilterDataMap1D temp;
        for(int k=0;k<3;k++)
        {
            temp2.append(valid_filters[i][j][k]);
        }
        temp2D.insert(j, temp2);
    }
    data_3D.insert(i, temp2D);
}
 
for(int i=0;i<1025;i++)
{
    for(int j=0;j<153;j++)
        for(int k=0;k<3;k++)
            printf("\nValid_filters=%f",data_3D[i][j][k]);
}

typedef QVector<double>	QFilterDataMap1D;
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2D;	
typedef QMap<double, QFilterDataMap2D> QFilterDataMap3D;

QFilterDataMap3D data_3D

for(int i=0;i<1025;i++)
{
    QFilterDataMap2D temp2D;
    for(int j=0;j<153;j++)
    {
        QFilterDataMap1D temp;
        for(int k=0;k<3;k++)
        {
            temp2.append(valid_filters[i][j][k]);
        }
        temp2D.insert(j, temp2);
    }
    data_3D.insert(i, temp2D);
}
 
for(int i=0;i<1025;i++)
{
    for(int j=0;j<153;j++)
        for(int k=0;k<3;k++)
            printf("\nValid_filters=%f",data_3D[i][j][k]);
}

To copy to clipboard, switch view to plain text mode 

[saad_saadi]

Dear Sir,

Sorry for disturbing you again. Now i want to do the reverse, means what to transfer QFilterMap2D data to a 2D matrix. first let assume an example for QMapFilter1D, it will be like this

typedef QVector<double>  QFilterDataMap1D
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2d
QFilterDataMap1d map1d;
QFilterDataMap2D map2d;
double gain;
double gain2[1][153];

typedef QVector<double>  QFilterDataMap1D
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2d
QFilterDataMap1d map1d;
QFilterDataMap2D map2d;
double gain;
double gain2[1][153];

To copy to clipboard, switch view to plain text mode 

I want to transfer map2d into gain2. Can you please tell me how i can do this.

Thanks in advance.

[Santosh Reddy]

I want to QFilterDataMap1D into gain and QFilterDataMap2D into gain2.

You cannot, QFilterDataMap1D is type and gain is a variable. You will need a variable of QFilterDataMap1D/QFilterDataMap2D first

typedef QVector<double>  QFilterDataMap1D
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2d
 
 
QFilterDataMap1D mapID;
QFilterDataMap2d map2d;
...
 
double gain;
double gain2[1][153];
 
//lets assume mapID has 153 doudle values in it and you want to read 10'th double item (index = 9)
gain = mapID.at(9);
 
//lets assume map2d has 10 QFilterDataMap1D in it and each QFilterDataMap1D has 153 double values, and you want read all the double values of 5th item (key = 4)
for(int i = 0; i < map2d.value(4).size(); i++)
{
    gain2[0][i] = map2d[4][i];
}

typedef QVector<double>  QFilterDataMap1D
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2d


QFilterDataMap1D mapID;
QFilterDataMap2d map2d;
...

double gain;
double gain2[1][153];

//lets assume mapID has 153 doudle values in it and you want to read 10'th double item (index = 9)
gain = mapID.at(9);

//lets assume map2d has 10 QFilterDataMap1D in it and each QFilterDataMap1D has 153 double values, and you want read all the double values of 5th item (key = 4)
for(int i = 0; i < map2d.value(4).size(); i++)
{
    gain2[0][i] = map2d[4][i];
}

To copy to clipboard, switch view to plain text mode 

[saad_saadi]

Thanks a lot for pointing the mistake, i meant the same for which you answered..i edited my question..
In my case map2d has 3 QFilterDataMap1D in it and which in turn each has 153 double values, so my index will be like this

for(int j=0;j<3;j++)
for(int i=0, i<map2d.value(j).size();i++)
{
    gain2[j][i]=map2d[j][i];
}

for(int j=0;j<3;j++)
for(int i=0, i<map2d.value(j).size();i++)
{
    gain2[j][i]=map2d[j][i];
}

To copy to clipboard, switch view to plain text mode 

How about this case

typedef QVector<double>	QFilterDataMap1D;
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2D;	
typedef QMap<double, QFilterDataMap2D> QFilterDataMap3D;
 
QFilterDataMap3D map3d;
double gain3[1024][153][3];

typedef QVector<double>	QFilterDataMap1D;
typedef QMap<double, QFilterDataMap1D> QFilterDataMap2D;	
typedef QMap<double, QFilterDataMap2D> QFilterDataMap3D;

QFilterDataMap3D map3d;
double gain3[1024][153][3];

To copy to clipboard, switch view to plain text mode 

How i can transfer QFilterDataMap3D into gain3?

Thanks a lot for you concern in advance.