private void UpdatePieces(List <Point> data)
{
d_ignoreUpdatePreview = true;
bool hasperiod = ValidPeriod;
List <Undo.IAction> actions = new List <Undo.IAction>();
Biorob.Math.Range range = DeterminePeriod();
double period = 0;
if (hasperiod)
{
period = Period;
}
foreach (Cdn.FunctionPolynomialPiece piece in d_function.Pieces)
{
actions.Add(new Undo.RemoveFunctionPolynomialPiece(d_function, piece));
}
if (hasperiod && range != null)
{
// Remove data outside the range
data.RemoveAll(d => d.X <range.Min || d.X> range.Max);
}
// Then make it periodic
Biorob.Math.Interpolation.PChip pchip = new Biorob.Math.Interpolation.PChip();
data.Sort();
if (hasperiod)
{
Biorob.Math.Interpolation.Periodic.Extend(data, 0, period);
}
Biorob.Math.Functions.PiecewisePolynomial poly = pchip.InterpolateSorted(data);
foreach (Biorob.Math.Functions.PiecewisePolynomial.Piece piece in poly.Pieces)
{
Cdn.FunctionPolynomialPiece p;
p = new FunctionPolynomialPiece(piece.Begin, piece.End, piece.Coefficients);
actions.Add(new Undo.AddFunctionPolynomialPiece(d_function, p));
}
try
{
d_actions.Do(new Undo.Group(actions));
}
catch (Exception e)
{
Error(this, e);
}
d_ignoreUpdatePreview = false;
UpdatePreview();
}
private void UpdateDragging(Point pt, bool finegrained)
{
// Check if we moved something
Point dpt = d_dataLine[d_draggingData];
Point axis = d_graph.Graph.PixelToAxis(pt);
if (d_graph.Graph.SnapRulerToAxis)
{
int factor = d_graph.Graph.SnapRulerToAxisFactor;
if (finegrained)
{
factor *= 2;
}
axis = d_graph.Graph.SnapToAxis(axis, factor);
}
if (dpt.MarginallyEquals(axis))
{
return;
}
if (d_draggingLine == null)
{
d_draggingLine = d_dataLine.Copy() as Plot.Renderers.Line;
d_draggingLine.Color = d_graph.Graph.ColorMap[1];
d_draggingLine.LineStyle = Plot.Renderers.LineStyle.Dotted;
d_draggingLine.YLabel = null;
d_draggingLine.YLabelMarkup = null;
d_graph.Graph.Add(d_draggingLine);
}
List <Point> data = new List <Point>(d_dataLine.Data);
data[d_draggingData] = axis;
Plot.Renderers.Bezier bezier = d_draggingLine as Plot.Renderers.Bezier;
if (bezier != null)
{
// Do interpolation again on data
Biorob.Math.Interpolation.PChip pchip = new Biorob.Math.Interpolation.PChip();
bezier.PiecewisePolynomial = pchip.Interpolate(data);
}
else
{
d_draggingLine.Data = data;
}
}
