Function call problem

Zgembo

Hi all,

I am working with QCustomPlot graph and I am trying to add data to plot.

I am trying to copy data from one plot to another in this way:

//fetch data 
QVector<double> *xDataToPlot = getTraces().at(i)->getXData();
QList<float> *yDataToPlot = getTraces().at(i)->getYData();

//add data to new graph
printScreen->getTraces().at(i)->getGraph()->addData(xDataToPlot, yDataToPlot);

I can not compile this part of code.
Function addData is QCustomPlot function that is tefined as:

void QCPGraph::addData ( const QVector< double > &  	keys,
		const QVector< double > &  	values,bool  	alreadySorted = false 

void QCPGraph::addData ( double  key,double  value )

It can be found here https://www.qcustomplot.com/documentation/classQCPGraph.html#ae0555c0d3fe0fa7cb8628f88158d420f

Any suggestions?

aha_1980

@Zgembo

It seems, for keys you can just use *xDataToPlot, but for values you need to transform the QList<float> to a QVector<double>.

Zgembo

@aha_1980 said in Function call problem:

@Zgembo

It seems, for keys you can just use *xDataToPlot, but for values you need to transform the QList<float> to a QVector<double>.

Thank you. I have been looking at this since last night :-)

aha_1980

@Zgembo

I don't know QCustomPlot, but it seems a bit strange API-wise to return a QList<float> at one place and require a QVector<double> at another...