private void UpdatePlot()
{
if (this._scores == null)
{
this._lblSelection.Text = this._errorMessage;
this._lblSelection.ForeColor = Color.Red;
this._chart.Visible = false;
return;
}
this._chart.Visible = true;
this._lblSelection.Text = "";
this._lblSelection.ForeColor = ForeColor;
MCharting.Plot plot = new MCharting.Plot();
plot.Title = $"{this._lblMethod.Text} of {this._core.FileNames.Title}";
plot.SubTitle = $"Source: {this._lblPcaSource.Text}, View: {this._lblPlotView.Text}, Legend: {this._lblLegend.Text}, Corrections: {this._lblCorrections.Text}, Observations: {this._lblObs.Text}, Peaks: {this._lblPeaks.Text}";
switch (this._method)
{
case EMethod.Pca:
plot.XLabel = $"PC{this._component + 1}";
plot.YLabel = $"PC{this._component + 2}";
break;
case EMethod.Plsr:
plot.XLabel = $"Component {this._component + 1}";
plot.YLabel = $"Component {this._component + 2}";
plot.SubTitle += ", PLSR Response: " + this._lblPlsrSource.Text;
break;
}
this._chart.Style.Margin = new Padding(48, 48, 48, 48);
plot.Style.GridStyle = new Pen(Color.FromArgb(224, 224, 224));
// Get the "rows"
IEnumerator enSources;
Column column;
this.GetSource(this._colourBy, out enSources, out column);
// Get the "columns"
double[,] plotPoints;
if (this._plotSource == EPlotSource.Loadings)
{
plotPoints = this._loadings;
}
else
{
plotPoints = this._scores;
}
// Get the component
if (this._component < 0)
{
this._component = 0;
}
if (this._component >= plotPoints.GetLength(1))
{
this._component = plotPoints.GetLength(1) - 1;
}
this._btnPrevPc.Enabled = this._component != 0;
this._btnNextPc.Enabled = this._component != plotPoints.GetLength(1) - 1;
this._lblPlotView.Text = this._plotSource == EPlotSource.Loadings ? "Loadings" : "Scores";
this._btnScores.Checked = this._plotSource == EPlotSource.Scores;
this._btnLoadings.Checked = this._plotSource == EPlotSource.Loadings;
this._lblPcNumber.Text = "PC" + (this._component + 1).ToString() + " / " + plotPoints.GetLength(1);
this._lblLegend.Text = column.DisplayName;
bool isGroup = false;
// Iterate scores
for (int r = 0; r < plotPoints.GetLength(0); r++)
{
enSources.MoveNext();
MCharting.Series series = GetOrCreateSeriesForValue(plot, column, (Visualisable)enSources.Current, ref isGroup);
var coord = new MCharting.DataPoint(plotPoints[r, this._component], plotPoints[r, this._component + 1]);
coord.Tag = enSources.Current;
series.Points.Add(coord);
}
// Assign colours
if (!column.HasColourSupport && !isGroup)
{
foreach (var colour in PlotCreator.AutoColour(plot.Series))
{
colour.Key.Style.DrawPoints = new SolidBrush(colour.Value);
}
}
this._chart.Style.Animate = true;
this._chart.Style.SelectionColour = Color.Yellow;
this._chart.SetPlot(plot);
}
