/**
* Get the center X/Y Dn values for the bin at index.
*
* @param index The bin to get the center X/Y DN Values for
*
* @return The center DN value of the given bin
*/
QPair<double, double> ScatterPlotData::binXY(int index) const {
QPair<int, int> indices = binXYIndices(index);
int xIndex = indices.first;
int yIndex = indices.second;
if (xIndex != -1 && yIndex != -1) {
int xSize = 0;
int ySize = m_counts->size();
// Assume square 2D structurs
if (ySize > 0)
xSize = (*m_counts)[0].size();
double percentAcrossXRange = ((double)xIndex / (double)xSize);
double xDnValue = m_xCubeMin +
percentAcrossXRange * (m_xCubeMax - m_xCubeMin);
double percentAcrossYRange = ((double)yIndex / (double)ySize);
double yDnValue = m_yCubeMin +
percentAcrossYRange * (m_yCubeMax - m_yCubeMin);
return QPair<double, double>(xDnValue, yDnValue);
}
IString msg = "Bin at index [" + IString(index) + "] not found. "
"There are [" + IString(numberOfBins()) + "] bins";
throw IException(IException::Programmer, msg, _FILEINFO_);
}
QString Histogram::descriptionTip() const {
QString tip;
tip = tr("Histogram: %1").arg(Name());
if (realTimeAutoBin()) {
tip+= tr("\n Auto-bin");
} else {
tip += tr("\n %1 bins from %2 to %3").arg(numberOfBins()).arg(xMin()).arg(xMax());
}
tip += tr("\nInput: %1").arg(_inputVectors[RAWVECTOR]->descriptionTip());
return tip;
}
/**
* Get the 2D index index position given a 1D (flat) index position.
*
* @param binIndex The 1D (flat) index of the bin
* @return The x/y 2D index position
*/
QPair<int, int> ScatterPlotData::binXYIndices(int binIndex) const {
int xSize = 0;
int ySize = m_counts->size();
// Assume square 2D structurs
if (ySize > 0)
xSize = (*m_counts)[0].size();
int yIndex = (binIndex / xSize);
binIndex -= yIndex * xSize;
int xIndex = binIndex;
if (xIndex < 0 || yIndex < 0 || xIndex >= xSize || yIndex >= ySize) {
IString msg = "Bin at index [" + IString(binIndex) + "] not found. "
"There are [" + IString(numberOfBins()) + "] bins";
throw IException(IException::Programmer, msg, _FILEINFO_);
}
return QPair<int, int>(xIndex, yIndex);
}
