/// <summary> /// Template to get a fill path. /// </summary> /// <param name="gp">Graphics path to fill with data.</param> /// <param name="pdata">The plot data. Do not use the plot point positions from here, since they are not shifted when shifting group styles are present.</param> /// <param name="range">The plot range to use.</param> /// <param name="layer">Graphics layer.</param> /// <param name="fillDirection">Designates a bound to fill to.</param> /// <param name="ignoreMissingDataPoints">If true, missing data points are ignored.</param> /// <param name="connectCircular">If true, the line is connected circular, and the area is the polygon inside of that circular connection.</param> /// <param name="allLinePointsShiftedAlready">The plot positions, already shifted when a logical shift needed to be applied. Don't use the Range property of the pdata, since it is overriden by the next argument.</param> /// <param name="logicalShiftX">The logical shift in x-direction.</param> /// <param name="logicalShiftY">The logical shift in x-direction.</param> public abstract void FillOneRange( GraphicsPath gp, Processed2DPlotData pdata, IPlotRange range, IPlotArea layer, CSPlaneID fillDirection, bool ignoreMissingDataPoints, bool connectCircular, PointF[] allLinePointsShiftedAlready, double logicalShiftX, double logicalShiftY );
/// <summary>
/// Shift the plot points provided in <paramref name="pdata"/> with a logical shift in x- and/or y- direction.
/// </summary>
/// <param name="pdata">The plot point position data.</param>
/// <param name="layer">The plot layer for which the data are intended.</param>
/// <param name="logicalShiftX">The logical shift in x-direction.</param>
/// <param name="logicalShiftY">The logical shift in y-direction.</param>
/// <returns>Array of plot point positions, but now shifted by logical values in x-direction (<paramref name="logicalShiftX"/>) and y-direction (<paramref name="logicalShiftY"/>).</returns>
public static PointF[] GetPlotPointsInAbsoluteLayerCoordinatesWithShift(Processed2DPlotData pdata, IPlotArea layer, double logicalShiftX, double logicalShiftY)
{
var result = new PointF[pdata.PlotPointsInAbsoluteLayerCoordinates.Length];
foreach (PlotRange r in pdata.RangeList)
{
int lower = r.LowerBound;
int upper = r.UpperBound;
int offset = r.OffsetToOriginal;
for (int j = lower; j < upper; ++j)
{
int originalRow = j + offset;
Logical3D logicalMean = layer.GetLogical3D(pdata, originalRow);
logicalMean.RX += logicalShiftX;
logicalMean.RY += logicalShiftY;
layer.CoordinateSystem.LogicalToLayerCoordinates(logicalMean, out var x, out var y);
result[j] = new PointF((float)x, (float)y);
}
}
return(result);
}
/// <inheritdoc/>
public override void FillOneRange(
GraphicsPath gp,
Processed2DPlotData pdata,
IPlotRange range,
IPlotArea layer,
CSPlaneID fillDirection,
bool ignoreMissingDataPoints,
bool connectCircular,
PointF[] allLinePointsShiftedAlready,
double logicalShiftX,
double logicalShiftY
)
{
if (range.Length < 2)
return;
int lastIdx;
PointF[] linePoints = Segment2Connection_GetSubPoints(allLinePointsShiftedAlready, range, layer, connectCircular, out lastIdx);
if (connectCircular)
{
gp.AddLines(linePoints);
gp.CloseFigure();
}
else
{
int offs = range.LowerBound;
for (int i = 0; i < linePoints.Length - 1; i += 2)
{
Logical3D r0 = layer.GetLogical3D(pdata, range.GetOriginalRowIndexFromPlotPointIndex(range.LowerBound + i));
r0.RX += logicalShiftX;
r0.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPlaneToPoint(gp, fillDirection, r0);
gp.AddLine(linePoints[i].X, linePoints[i].Y, linePoints[i + 1].X, linePoints[i + 1].Y);
Logical3D r1 = layer.GetLogical3D(pdata, range.GetOriginalRowIndexFromPlotPointIndex(range.LowerBound + i + 1));
r1.RX += logicalShiftX;
r1.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPointToPlane(gp, r1, fillDirection);
layer.CoordinateSystem.GetIsolineOnPlane(gp, fillDirection, r1, r0);
gp.StartFigure();
}
gp.CloseFigure();
}
}
/// <summary>
/// Template to get a fill path.
/// </summary>
/// <param name="gp">Graphics path to fill with data.</param>
/// <param name="pdata">The plot data. Don't use the Range property of the pdata, since it is overriden by the next argument.</param>
/// <param name="range">The plot range to use.</param>
/// <param name="layer">Graphics layer.</param>
/// <param name="fillDirection">Designates a bound to fill to.</param>
/// <param name="linePoints">The points that mark the line.</param>
/// <param name="connectCircular">If true, a circular connection is drawn.</param>
/// <param name="allLinePointsShiftedAlready">The plot positions, already shifted when a logical shift needed to be applied. Don't use the Range property of the pdata, since it is overriden by the next argument.</param>
/// <param name="logicalShiftX">The logical shift in x-direction.</param>
/// <param name="logicalShiftY">The logical shift in x-direction.</param>
public virtual void FillOneRange(
GraphicsPath gp,
Processed2DPlotData pdata,
IPlotRange range,
IPlotArea layer,
CSPlaneID fillDirection,
PointF[] linePoints,
bool connectCircular,
PointF[] allLinePointsShiftedAlready,
double logicalShiftX,
double logicalShiftY
)
{
if (connectCircular)
{
gp.AddLines(linePoints);
gp.CloseFigure();
}
else
{
Logical3D r0 = layer.GetLogical3D(pdata, range.OriginalFirstPoint);
r0.RX += logicalShiftX;
r0.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPlaneToPoint(gp, fillDirection, r0);
gp.AddLines(linePoints);
Logical3D r1 = layer.GetLogical3D(pdata, range.OriginalLastPoint);
r1.RX += logicalShiftX;
r1.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPointToPlane(gp, r1, fillDirection);
layer.CoordinateSystem.GetIsolineOnPlane(gp, fillDirection, r1, r0);
gp.CloseFigure();
}
}
/// <inheritdoc/>
public override void FillOneRange(
GraphicsPath gp,
Processed2DPlotData pdata,
IPlotRange range,
IPlotArea layer,
CSPlaneID fillDirection,
bool ignoreMissingDataPoints,
bool connectCircular,
PointF[] allLinePoints,
double logicalShiftX,
double logicalShiftY
)
{
if (range.Length < 2)
return;
int lastIdx;
int numberOfPointsPerOriginalPoint;
PointF[] linepts = GetStepPolylinePoints(allLinePoints, range, layer, connectCircular, out numberOfPointsPerOriginalPoint, out lastIdx);
FillOneRange(gp, pdata, range, layer, fillDirection, linepts, connectCircular, allLinePoints, logicalShiftX, logicalShiftY);
}
/// <summary>
/// Shift the plot points provided in <paramref name="pdata"/> with a logical shift in x- and/or y- direction.
/// </summary>
/// <param name="pdata">The plot point position data.</param>
/// <param name="layer">The plot layer for which the data are intended.</param>
/// <param name="logicalShiftX">The logical shift in x-direction.</param>
/// <param name="logicalShiftY">The logical shift in y-direction.</param>
/// <returns>Array of plot point positions, but now shifted by logical values in x-direction (<paramref name="logicalShiftX"/>) and y-direction (<paramref name="logicalShiftY"/>).</returns>
public static PointF[] GetPlotPointsInAbsoluteLayerCoordinatesWithShift(Processed2DPlotData pdata, IPlotArea layer, double logicalShiftX, double logicalShiftY)
{
var result = new PointF[pdata.PlotPointsInAbsoluteLayerCoordinates.Length];
foreach (PlotRange r in pdata.RangeList)
{
int lower = r.LowerBound;
int upper = r.UpperBound;
int offset = r.OffsetToOriginal;
for (int j = lower; j < upper; ++j)
{
int originalRow = j + offset;
Logical3D logicalMean = layer.GetLogical3D(pdata, originalRow);
logicalMean.RX += logicalShiftX;
logicalMean.RY += logicalShiftY;
double x, y;
layer.CoordinateSystem.LogicalToLayerCoordinates(logicalMean, out x, out y);
result[j] = new PointF((float)x, (float)y);
}
}
return result;
}
public void Paint(System.Drawing.Graphics g, IPlotArea layer, Altaxo.Graph.Gdi.Plot.Data.Processed2DPlotData pdata, Processed2DPlotData prevItemData, Processed2DPlotData nextItemData)
{
// adjust the skip frequency if it was not set appropriate
if (_skipFrequency <= 0)
_skipFrequency = 1;
if (_independentOnShiftingGroupStyles)
{
_cachedLogicalShiftX = _cachedLogicalShiftY = 0;
}
PlotRangeList rangeList = pdata.RangeList;
if (this._ignoreMissingDataPoints)
{
// in case we ignore the missing points, all ranges can be plotted
// as one range, i.e. continuously
// for this, we create the totalRange, which contains all ranges
var totalRange = new PlotRangeCompound(rangeList);
this.PaintOneRange(AxisNumber, g, layer, totalRange, pdata);
}
else // we not ignore missing points, so plot all ranges separately
{
for (int i = 0; i < rangeList.Count; i++)
{
this.PaintOneRange(AxisNumber, g, layer, rangeList[i], pdata);
}
}
}
protected void PaintOneRange(int axisNumber, Graphics g, IPlotArea layer, IPlotRange range, Processed2DPlotData pdata)
{
const double logicalClampMinimum = -10;
const double logicalClampMaximum = 11;
_skipFrequency = Math.Max(1, _skipFrequency);
// Plot error bars for the dependent variable (y)
var ptArray = pdata.PlotPointsInAbsoluteLayerCoordinates;
var posErrCol = PositiveErrorColumn;
var negErrCol = NegativeErrorColumn;
if (null != posErrCol && !typeof(double).IsAssignableFrom(posErrCol.ItemType))
posErrCol = null; // TODO make this an runtime paint error to be reported
if (null != negErrCol && !typeof(double).IsAssignableFrom(negErrCol.ItemType))
negErrCol = null; // TODO make this an runtime paint error to be reported
if (posErrCol == null && negErrCol == null)
return; // nothing to do if both error columns are null
var strokePen = _pen.Clone();
System.Drawing.Drawing2D.GraphicsPath errorBarPath = new System.Drawing.Drawing2D.GraphicsPath();
Region oldClippingRegion = g.Clip;
Region newClip = (Region)oldClippingRegion.Clone();
int lower = range.LowerBound;
int upper = range.UpperBound;
for (int j = lower; j < upper; j += _skipFrequency)
{
int originalRowIndex = range.GetOriginalRowIndexFromPlotPointIndex(j);
double symbolSize = null == _cachedSymbolSizeForIndexFunction ? _symbolSize : _cachedSymbolSizeForIndexFunction(originalRowIndex);
strokePen.Width = (_lineWidth1Offset + _lineWidth1Factor * symbolSize);
if (null != _cachedColorForIndexFunction)
strokePen.Color = GdiColorHelper.ToNamedColor(_cachedColorForIndexFunction(originalRowIndex), "VariableColor");
if (null != strokePen.EndCap)
strokePen.EndCap = strokePen.EndCap.WithMinimumAbsoluteAndRelativeSize(symbolSize * _endCapSizeFactor + _endCapSizeOffset, 1 + 1E-6);
AltaxoVariant vMeanPhysical = pdata.GetPhysical(axisNumber, originalRowIndex);
Logical3D logicalMean = layer.GetLogical3D(pdata, originalRowIndex);
logicalMean.RX += _cachedLogicalShiftX;
logicalMean.RY += _cachedLogicalShiftY;
if (!Calc.RMath.IsInIntervalCC(logicalMean.RX, logicalClampMinimum, logicalClampMaximum))
continue;
if (!Calc.RMath.IsInIntervalCC(logicalMean.RY, logicalClampMinimum, logicalClampMaximum))
continue;
var vMeanLogical = logicalMean.GetR(axisNumber);
Logical3D logicalPos = logicalMean;
Logical3D logicalNeg = logicalMean;
bool logicalPosValid = false;
bool logicalNegValid = false;
switch (_meaningOfValues)
{
case ValueInterpretation.AbsoluteError:
{
if (posErrCol != null)
{
var vPosLogical = layer.Scales[axisNumber].PhysicalVariantToNormal(vMeanPhysical + Math.Abs(posErrCol[originalRowIndex]));
vPosLogical = Calc.RMath.ClampToInterval(vPosLogical, logicalClampMinimum, logicalClampMaximum);
logicalPos.SetR(axisNumber, vPosLogical);
logicalPosValid = !logicalPos.IsNaN && vPosLogical != vMeanLogical;
}
if (negErrCol != null)
{
var vNegLogical = layer.Scales[axisNumber].PhysicalVariantToNormal(vMeanPhysical - Math.Abs(negErrCol[originalRowIndex]));
vNegLogical = Calc.RMath.ClampToInterval(vNegLogical, logicalClampMinimum, logicalClampMaximum);
logicalNeg.SetR(axisNumber, vNegLogical);
logicalNegValid = !logicalNeg.IsNaN && vNegLogical != vMeanLogical;
}
}
break;
case ValueInterpretation.RelativeError:
{
if (posErrCol != null)
{
var vPosLogical = layer.Scales[axisNumber].PhysicalVariantToNormal(vMeanPhysical * (1 + Math.Abs(posErrCol[originalRowIndex])));
vPosLogical = Calc.RMath.ClampToInterval(vPosLogical, logicalClampMinimum, logicalClampMaximum);
logicalPos.SetR(axisNumber, vPosLogical);
logicalPosValid = !logicalPos.IsNaN && vPosLogical != vMeanLogical;
}
if (negErrCol != null)
{
var vNegLogical = layer.Scales[axisNumber].PhysicalVariantToNormal(vMeanPhysical * (1 - Math.Abs(negErrCol[originalRowIndex])));
vNegLogical = Calc.RMath.ClampToInterval(vNegLogical, logicalClampMinimum, logicalClampMaximum);
logicalNeg.SetR(axisNumber, vNegLogical);
logicalNegValid = !logicalNeg.IsNaN && vNegLogical != vMeanLogical;
}
}
break;
case ValueInterpretation.AbsoluteValue:
{
if (posErrCol != null)
{
var vPosLogical = layer.Scales[axisNumber].PhysicalVariantToNormal(posErrCol[originalRowIndex]);
vPosLogical = Calc.RMath.ClampToInterval(vPosLogical, logicalClampMinimum, logicalClampMaximum);
logicalPos.SetR(axisNumber, vPosLogical);
logicalPosValid = !logicalPos.IsNaN && vPosLogical != vMeanLogical;
}
if (negErrCol != null)
{
var vNegLogical = layer.Scales[axisNumber].PhysicalVariantToNormal(negErrCol[originalRowIndex]);
vNegLogical = Calc.RMath.ClampToInterval(vNegLogical, logicalClampMinimum, logicalClampMaximum);
logicalNeg.SetR(axisNumber, vNegLogical);
logicalNegValid = !logicalNeg.IsNaN && vNegLogical != vMeanLogical;
}
if (object.ReferenceEquals(negErrCol, posErrCol))
{
logicalNegValid = false; // then we need only to plot the positive column, since both colums are identical
}
}
break;
} // end switch
if (!(logicalPosValid || logicalNegValid))
continue; // nothing to do for this point if both pos and neg logical point are invalid.
if (logicalNegValid)
{
errorBarPath.Reset();
layer.CoordinateSystem.GetIsoline(errorBarPath, logicalMean, logicalNeg);
PointF[] shortenedPathPoints = null;
bool shortenedPathPointsCalculated = false;
if (_useSymbolGap)
{
double gap = _symbolGapOffset + _symbolGapFactor * symbolSize;
if (gap > 0)
{
errorBarPath.Flatten();
var pathPoints = errorBarPath.PathPoints;
shortenedPathPoints = GdiExtensionMethods.ShortenedBy(pathPoints, RADouble.NewAbs(gap / 2), RADouble.NewAbs(0));
shortenedPathPointsCalculated = true;
if (null == shortenedPathPoints && _forceVisibilityOfEndCap && !(strokePen.EndCap is Altaxo.Graph.Gdi.LineCaps.FlatCap))
{
var totalLineLength = GdiExtensionMethods.TotalLineLength(pathPoints);
var shortTheLineBy = Math.Max(0, totalLineLength - 0.125 * strokePen.Width);
shortenedPathPoints = GdiExtensionMethods.ShortenedBy(pathPoints, RADouble.NewAbs(shortTheLineBy), RADouble.NewAbs(0));
}
}
}
if (shortenedPathPointsCalculated)
{
if (null != shortenedPathPoints)
{
g.DrawLines(strokePen, shortenedPathPoints);
}
}
else
{
g.DrawPath(strokePen, errorBarPath);
}
}
if (logicalPosValid)
{
errorBarPath.Reset();
layer.CoordinateSystem.GetIsoline(errorBarPath, logicalMean, logicalPos);
PointF[] shortenedPathPoints = null;
bool shortenedPathPointsCalculated = false;
if (_useSymbolGap)
{
double gap = _symbolGapOffset + _symbolGapFactor * symbolSize;
if (gap > 0)
{
errorBarPath.Flatten();
var pathPoints = errorBarPath.PathPoints;
shortenedPathPoints = GdiExtensionMethods.ShortenedBy(pathPoints, RADouble.NewAbs(gap / 2), RADouble.NewAbs(0));
shortenedPathPointsCalculated = true;
if (null == shortenedPathPoints && _forceVisibilityOfEndCap && !(strokePen.EndCap is Altaxo.Graph.Gdi.LineCaps.FlatCap))
{
var totalLineLength = GdiExtensionMethods.TotalLineLength(pathPoints);
var shortTheLineBy = Math.Max(0, totalLineLength - 0.125 * strokePen.Width);
shortenedPathPoints = GdiExtensionMethods.ShortenedBy(pathPoints, RADouble.NewAbs(shortTheLineBy), RADouble.NewAbs(0));
}
}
}
if (shortenedPathPointsCalculated)
{
if (null != shortenedPathPoints)
{
g.DrawLines(strokePen, shortenedPathPoints);
}
}
else
{
g.DrawPath(strokePen, errorBarPath);
}
}
}
g.Clip = oldClippingRegion;
}
/// <inheritdoc/>
public override void FillOneRange(
GraphicsPath gp,
Processed2DPlotData pdata,
IPlotRange range,
IPlotArea layer,
CSPlaneID fillDirection,
bool ignoreMissingDataPoints,
bool connectCircular,
PointF[] allLinePoints,
double logicalShiftX,
double logicalShiftY
)
{
PointF[] circularLinePoints = new PointF[range.Length + (connectCircular ? 1 : 0)];
Array.Copy(allLinePoints, range.LowerBound, circularLinePoints, 0, range.Length); // Extract
if (connectCircular)
circularLinePoints[circularLinePoints.Length - 1] = circularLinePoints[0];
if (connectCircular)
{
gp.AddLines(circularLinePoints);
gp.CloseFigure();
}
else // not circular
{
Logical3D r0 = layer.GetLogical3D(pdata, range.OriginalFirstPoint);
r0.RX += logicalShiftX;
r0.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPlaneToPoint(gp, fillDirection, r0);
gp.AddLines(circularLinePoints);
Logical3D r1 = layer.GetLogical3D(pdata, connectCircular ? range.OriginalFirstPoint : range.OriginalLastPoint);
r1.RX += logicalShiftX;
r1.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPointToPlane(gp, r1, fillDirection);
layer.CoordinateSystem.GetIsolineOnPlane(gp, fillDirection, r1, r0);
gp.CloseFigure();
}
}
/// <summary>
/// Template to get a fill path.
/// </summary>
/// <param name="gp">Graphics path to fill with data.</param>
/// <param name="pdata">The plot data. Don't use the Range property of the pdata, since it is overriden by the next argument.</param>
/// <param name="range">The plot range to use.</param>
/// <param name="layer">Graphics layer.</param>
/// <param name="fillDirection">Designates a bound to fill to.</param>
/// <param name="linePoints">The points that mark the line.</param>
/// <param name="connectCircular">If true, a circular connection is drawn.</param>
private void FillOneRange_PreprocessedPoints(
GraphicsPath gp,
Processed2DPlotData pdata,
IPlotRange range,
IPlotArea layer,
CSPlaneID fillDirection,
PointF[] linePoints,
bool connectCircular,
double logicalShiftX,
double logicalShiftY
)
{
if (connectCircular)
{
gp.AddBeziers(linePoints);
gp.CloseFigure();
}
else
{
Logical3D r0 = layer.GetLogical3D(pdata, range.OriginalFirstPoint);
r0.RX += logicalShiftX;
r0.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPlaneToPoint(gp, fillDirection, r0);
gp.AddBeziers(linePoints);
Logical3D r1 = layer.GetLogical3D(pdata, range.GetOriginalRowIndexFromPlotPointIndex(range.LowerBound + linePoints.Length - 1));
r1.RX += logicalShiftX;
r1.RY += logicalShiftY;
layer.CoordinateSystem.GetIsolineFromPointToPlane(gp, r1, fillDirection);
layer.CoordinateSystem.GetIsolineOnPlane(gp, fillDirection, r1, r0);
gp.CloseFigure();
}
}
/// <inheritdoc/>
public override void FillOneRange(
GraphicsPath gp,
Processed2DPlotData pdata,
IPlotRange range,
IPlotArea layer,
CSPlaneID fillDirection,
bool ignoreMissingDataPoints,
bool connectCircular,
PointF[] allLinePoints,
double logicalShiftX,
double logicalShiftY
)
{
if (range.Length < 4)
return;
if (connectCircular)
{
var circularLinePointsLengthM1 = 2 + TrimToValidBezierLength(range.Length);
var circularLinePoints = new PointF[circularLinePointsLengthM1 + 1];
Array.Copy(allLinePoints, range.LowerBound, circularLinePoints, 0, range.Length); // Extract
circularLinePoints[circularLinePointsLengthM1] = circularLinePoints[0];
// amend missing control points
if (circularLinePointsLengthM1 - range.Length >= 1)
circularLinePoints[circularLinePointsLengthM1 - 1] = GdiExtensionMethods.Interpolate(circularLinePoints[circularLinePointsLengthM1 - 3], circularLinePoints[circularLinePointsLengthM1], 0.5); // Last Control point should be halfway between
if (circularLinePointsLengthM1 - range.Length >= 2)
circularLinePoints[circularLinePointsLengthM1 - 2] = GdiExtensionMethods.Interpolate(circularLinePoints[circularLinePointsLengthM1 - 3], circularLinePoints[circularLinePointsLengthM1], 0.5); // Middle Control point should be halfway between previous fixed point and last(=first) fixed point
FillOneRange_PreprocessedPoints(gp, pdata, range, layer, fillDirection, circularLinePoints, connectCircular, logicalShiftX, logicalShiftY);
}
else
{
var trimmedLinePointsLength = TrimToValidBezierLength(range.Length);
var trimmedLinePoints = new PointF[trimmedLinePointsLength];
Array.Copy(allLinePoints, range.LowerBound, trimmedLinePoints, 0, trimmedLinePointsLength); // Extract
FillOneRange_PreprocessedPoints(gp, pdata, range, layer, fillDirection, trimmedLinePoints, connectCircular, logicalShiftX, logicalShiftY);
}
}
