Method GetNearHandle

Modules/QtWidgetsExt/src/QmitkPiecewiseFunctionCanvas.cpp:132–145

}

int QmitkPiecewiseFunctionCanvas::GetNearHandle(int x, int y, unsigned int maxSquaredDistance)
{
  double *dp = m_PiecewiseFunction->GetDataPointer();
  for (int i = 0; i < m_PiecewiseFunction->GetSize(); i++)
  {
    std::pair<int, int> point = this->FunctionToCanvas(std::make_pair(dp[i * 2], dp[i * 2 + 1]));
    if ((unsigned int)((point.first - x) * (point.first - x) + (point.second - y) * (point.second - y)) <=
        maxSquaredDistance)
    {
      return i;
    }
  }
  return -1;
}

void QmitkPiecewiseFunctionCanvas::MoveFunctionPoint(int index, std::pair<double, double> pos)
{