private void plotMouseDoubleClick(object sender, MouseEventArgs e)
        {
            (double mouseX, double mouseY) = MainPlot.GetMouseCoordinates();
            sph.HighlightClear();
            var(trackerX, trackerY, index) = sph.HighlightPointNearest(mouseX, mouseY);

            for (int i = 0; i < dtb.Rows.Count; i++)
            {
                DataTable curTable = (DataTable)DGrid.DataContext;
                DataRow   curRow   = curTable.Rows[i];

                string cellContent = String.Join(", ", curRow.ItemArray);

                if (cellContent.Contains(trackerX.ToString()) && cellContent.Contains(trackerY.ToString()))
                {
                    DGrid.ScrollIntoView(DGrid.Items[i]);
                    DGrid.SelectedIndex = i;
                    DGrid.UpdateLayout();
                }
            }
            MainPlot.Render();
        }