public void Paint(Graphics g, IPlotArea layer, Processed2DPlotData pdata, Processed2DPlotData prevItemData, Processed2DPlotData nextItemData)
{
// adjust the skip frequency if it was not set appropriate
if (_skipFreq <= 0)
{
_skipFreq = 1;
}
if (_scatterSymbol is NoSymbol)
{
return;
}
var cachedPathData = new CachedPathData();
var cachedBrushData = new CachedBrushData();
PlotRangeList rangeList = pdata.RangeList;
PointF[] plotPositions = pdata.PlotPointsInAbsoluteLayerCoordinates;
if (!_independentOnShiftingGroupStyles && (0 != _cachedLogicalShiftX || 0 != _cachedLogicalShiftY))
{
plotPositions = Processed2DPlotData.GetPlotPointsInAbsoluteLayerCoordinatesWithShift(pdata, layer, _cachedLogicalShiftX, _cachedLogicalShiftY);
}
// Calculate current scatterSymbol overridden with frame and inset
var scatterSymbol = CalculateOverriddenScatterSymbol();
if (_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);
PaintOneRange(g, layer, plotPositions, totalRange, scatterSymbol, ref cachedPathData, ref cachedBrushData);
}
else // we not ignore missing points, so plot all ranges separately
{
for (int i = 0; i < rangeList.Count; i++)
{
PaintOneRange(g, layer, plotPositions, rangeList[i], scatterSymbol, ref cachedPathData, ref cachedBrushData);
}
}
cachedBrushData.Clear();
cachedPathData.Clear();
}
public RectangleF PaintSymbol(System.Drawing.Graphics g, System.Drawing.RectangleF bounds)
{
if (_scatterSymbol is NoSymbol)
{
return(bounds);
}
var cachedPathData = new CachedPathData();
var cachedBrushData = new CachedBrushData();
var scatterSymbol = CalculateOverriddenScatterSymbol();
CalculatePaths(scatterSymbol, _symbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, _color, cachedPathData, ref cachedBrushData);
GraphicsState gs = g.Save();
g.TranslateTransform(bounds.X + 0.5f * bounds.Width, bounds.Y + 0.5f * bounds.Height);
if (null != cachedPathData.InsetPath)
{
g.FillPath(cachedBrushData.InsetBrush, cachedPathData.InsetPath);
}
if (null != cachedPathData.FillPath)
{
g.FillPath(cachedBrushData.FillBrush, cachedPathData.FillPath);
}
if (null != cachedPathData.FramePath)
{
g.FillPath(cachedBrushData.FrameBrush, cachedPathData.FramePath);
}
cachedBrushData.Clear();
cachedPathData.Clear();
g.Restore(gs);
if (SymbolSize > bounds.Height)
{
bounds.Inflate(0, (float)(SymbolSize - bounds.Height));
}
return(bounds);
}
private void PaintOneRange(
Graphics g,
IPlotArea layer,
PointF[] plotPositions,
IPlotRange range,
IScatterSymbol scatterSymbol,
ref CachedPathData cachedPathData,
ref CachedBrushData cachedBrushData)
{
var ptArray = plotPositions;
float xpos = 0, ypos = 0;
float xdiff, ydiff;
int originalIndex;
// save the graphics stat since we have to translate the origin
System.Drawing.Drawing2D.GraphicsState gs = g.Save();
if (null == _cachedSymbolSizeForIndexFunction && null == _cachedColorForIndexFunction) // using a constant symbol size
{
// calculate the path only once
CalculatePaths(scatterSymbol, _symbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, _color, cachedPathData, ref cachedBrushData);
for (int plotPointIndex = range.LowerBound; plotPointIndex < range.UpperBound; plotPointIndex += _skipFreq)
{
xdiff = ptArray[plotPointIndex].X - xpos;
ydiff = ptArray[plotPointIndex].Y - ypos;
xpos = ptArray[plotPointIndex].X;
ypos = ptArray[plotPointIndex].Y;
g.TranslateTransform(xdiff, ydiff);
if (null != cachedPathData.InsetPath)
{
g.FillPath(cachedBrushData.InsetBrush, cachedPathData.InsetPath);
}
if (null != cachedPathData.FillPath)
{
g.FillPath(cachedBrushData.FillBrush, cachedPathData.FillPath);
}
if (null != cachedPathData.FramePath)
{
g.FillPath(cachedBrushData.FrameBrush, cachedPathData.FramePath);
}
} // end for
}
else // using a variable symbol size or variable symbol color
{
CalculatePaths(scatterSymbol, _symbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, _color, cachedPathData, ref cachedBrushData);
for (int plotPointIndex = range.LowerBound; plotPointIndex < range.UpperBound; plotPointIndex += _skipFreq)
{
originalIndex = range.GetOriginalRowIndexFromPlotPointIndex(plotPointIndex);
if (null == _cachedColorForIndexFunction)
{
double customSymbolSize = _cachedSymbolSizeForIndexFunction(originalIndex);
CalculatePaths(scatterSymbol, customSymbolSize, ref cachedPathData);
}
else
{
double customSymbolSize = null == _cachedSymbolSizeForIndexFunction ? _symbolSize : _cachedSymbolSizeForIndexFunction(originalIndex);
var customSymbolColor = _cachedColorForIndexFunction(originalIndex);
CalculatePaths(scatterSymbol, customSymbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, NamedColor.FromArgb(customSymbolColor.A, customSymbolColor.R, customSymbolColor.G, customSymbolColor.B), cachedPathData, ref cachedBrushData);
}
xdiff = ptArray[plotPointIndex].X - xpos;
ydiff = ptArray[plotPointIndex].Y - ypos;
xpos = ptArray[plotPointIndex].X;
ypos = ptArray[plotPointIndex].Y;
g.TranslateTransform(xdiff, ydiff);
if (null != cachedPathData.InsetPath)
{
g.FillPath(cachedBrushData.InsetBrush, cachedPathData.InsetPath);
}
if (null != cachedPathData.FillPath)
{
g.FillPath(cachedBrushData.FillBrush, cachedPathData.FillPath);
}
if (null != cachedPathData.FramePath)
{
g.FillPath(cachedBrushData.FrameBrush, cachedPathData.FramePath);
}
}
}
g.Restore(gs); // Restore the graphics state
}
/// <summary>
/// Calculates the brushes.
/// </summary>
/// <param name="scatterSymbol">ScatterSymbol, already processed via <see cref="CalculateOverriddenScatterSymbol"/></param>
/// <param name="plotColor">The current plot color.</param>
/// <param name="cachedPathData">The cached path data.</param>
/// <param name="cachedBrushData">Cached brush data, which will be filled-in during this call..</param>
/// <returns>True if new cached brush data were calculated; false if the cached data were up-to-date.</returns>
private bool CalculateBrushes(IScatterSymbol scatterSymbol, NamedColor plotColor, CachedPathData cachedPathData, ref CachedBrushData cachedBrushData)
{
if (plotColor == cachedBrushData.PlotColor)
{
return(false); // cached data valid and could be reused;
}
cachedBrushData.Clear();
cachedBrushData.PlotColor = plotColor;
var plotColorInfluence = _overridePlotColorInfluence ?? scatterSymbol.PlotColorInfluence;
if (null != cachedPathData.InsetPath)
{
var insetColor = _overrideInsetColor ?? scatterSymbol.Inset.Color;
if (plotColorInfluence.HasFlag(PlotColorInfluence.InsetColorFull))
{
insetColor = plotColor;
}
else if (plotColorInfluence.HasFlag(PlotColorInfluence.InsetColorPreserveAlpha))
{
insetColor = plotColor.NewWithAlphaValue(insetColor.Color.A);
}
cachedBrushData.InsetBrush = new SolidBrush(insetColor);
}
if (null != cachedPathData.FillPath)
{
var fillColor = _overrideFillColor ?? scatterSymbol.FillColor;
if (plotColorInfluence.HasFlag(PlotColorInfluence.FillColorFull))
{
fillColor = plotColor;
}
else if (plotColorInfluence.HasFlag(PlotColorInfluence.FillColorPreserveAlpha))
{
fillColor = plotColor.NewWithAlphaValue(fillColor.Color.A);
}
cachedBrushData.FillBrush = new SolidBrush(fillColor);
}
if (null != cachedPathData.FramePath)
{
var frameColor = _overrideFrameColor ?? scatterSymbol.Frame.Color;
if (plotColorInfluence.HasFlag(PlotColorInfluence.FrameColorFull))
{
frameColor = plotColor;
}
else if (plotColorInfluence.HasFlag(PlotColorInfluence.FrameColorPreserveAlpha))
{
frameColor = plotColor.NewWithAlphaValue(frameColor.Color.A);
}
cachedBrushData.FrameBrush = new SolidBrush(frameColor);
}
return(true);
}
public RectangleF PaintSymbol(System.Drawing.Graphics g, System.Drawing.RectangleF bounds)
{
if (_scatterSymbol is NoSymbol)
return bounds;
var cachedPathData = new CachedPathData();
var cachedBrushData = new CachedBrushData();
var scatterSymbol = CalculateOverriddenScatterSymbol();
CalculatePaths(scatterSymbol, _symbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, _color, cachedPathData, ref cachedBrushData);
GraphicsState gs = g.Save();
g.TranslateTransform(bounds.X + 0.5f * bounds.Width, bounds.Y + 0.5f * bounds.Height);
if (null != cachedPathData.InsetPath)
g.FillPath(cachedBrushData.InsetBrush, cachedPathData.InsetPath);
if (null != cachedPathData.FillPath)
g.FillPath(cachedBrushData.FillBrush, cachedPathData.FillPath);
if (null != cachedPathData.FramePath)
g.FillPath(cachedBrushData.FrameBrush, cachedPathData.FramePath);
cachedBrushData.Clear();
cachedPathData.Clear();
g.Restore(gs);
if (this.SymbolSize > bounds.Height)
bounds.Inflate(0, (float)(this.SymbolSize - bounds.Height));
return bounds;
}
public void Paint(Graphics g, IPlotArea layer, Processed2DPlotData pdata, Processed2DPlotData prevItemData, Processed2DPlotData nextItemData)
{
// adjust the skip frequency if it was not set appropriate
if (_skipFreq <= 0)
_skipFreq = 1;
if (this._scatterSymbol is NoSymbol)
return;
CachedPathData cachedPathData = new CachedPathData();
CachedBrushData cachedBrushData = new CachedBrushData();
PlotRangeList rangeList = pdata.RangeList;
PointF[] plotPositions = pdata.PlotPointsInAbsoluteLayerCoordinates;
if (!_independentOnShiftingGroupStyles && (0 != _cachedLogicalShiftX || 0 != _cachedLogicalShiftY))
{
plotPositions = Processed2DPlotData.GetPlotPointsInAbsoluteLayerCoordinatesWithShift(pdata, layer, _cachedLogicalShiftX, _cachedLogicalShiftY);
}
// Calculate current scatterSymbol overridden with frame and inset
var scatterSymbol = CalculateOverriddenScatterSymbol();
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(g, layer, plotPositions, totalRange, scatterSymbol, ref cachedPathData, ref cachedBrushData);
}
else // we not ignore missing points, so plot all ranges separately
{
for (int i = 0; i < rangeList.Count; i++)
{
this.PaintOneRange(g, layer, plotPositions, rangeList[i], scatterSymbol, ref cachedPathData, ref cachedBrushData);
}
}
cachedBrushData.Clear();
cachedPathData.Clear();
}
private void PaintOneRange(
Graphics g,
IPlotArea layer,
PointF[] plotPositions,
IPlotRange range,
IScatterSymbol scatterSymbol,
ref CachedPathData cachedPathData,
ref CachedBrushData cachedBrushData)
{
var ptArray = plotPositions;
float xpos = 0, ypos = 0;
float xdiff, ydiff;
int originalIndex;
// save the graphics stat since we have to translate the origin
System.Drawing.Drawing2D.GraphicsState gs = g.Save();
if (null == _cachedSymbolSizeForIndexFunction && null == _cachedColorForIndexFunction) // using a constant symbol size
{
// calculate the path only once
CalculatePaths(scatterSymbol, _symbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, _color, cachedPathData, ref cachedBrushData);
for (int plotPointIndex = range.LowerBound; plotPointIndex < range.UpperBound; plotPointIndex += _skipFreq)
{
xdiff = ptArray[plotPointIndex].X - xpos;
ydiff = ptArray[plotPointIndex].Y - ypos;
xpos = ptArray[plotPointIndex].X;
ypos = ptArray[plotPointIndex].Y;
g.TranslateTransform(xdiff, ydiff);
if (null != cachedPathData.InsetPath)
g.FillPath(cachedBrushData.InsetBrush, cachedPathData.InsetPath);
if (null != cachedPathData.FillPath)
g.FillPath(cachedBrushData.FillBrush, cachedPathData.FillPath);
if (null != cachedPathData.FramePath)
g.FillPath(cachedBrushData.FrameBrush, cachedPathData.FramePath);
} // end for
}
else // using a variable symbol size or variable symbol color
{
CalculatePaths(scatterSymbol, _symbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, _color, cachedPathData, ref cachedBrushData);
for (int plotPointIndex = range.LowerBound; plotPointIndex < range.UpperBound; plotPointIndex += _skipFreq)
{
originalIndex = range.GetOriginalRowIndexFromPlotPointIndex(plotPointIndex);
if (null == _cachedColorForIndexFunction)
{
double customSymbolSize = _cachedSymbolSizeForIndexFunction(originalIndex);
CalculatePaths(scatterSymbol, customSymbolSize, ref cachedPathData);
}
else
{
double customSymbolSize = null == _cachedSymbolSizeForIndexFunction ? _symbolSize : _cachedSymbolSizeForIndexFunction(originalIndex);
var customSymbolColor = _cachedColorForIndexFunction(originalIndex);
CalculatePaths(scatterSymbol, customSymbolSize, ref cachedPathData);
CalculateBrushes(scatterSymbol, NamedColor.FromArgb(customSymbolColor.A, customSymbolColor.R, customSymbolColor.G, customSymbolColor.B), cachedPathData, ref cachedBrushData);
}
xdiff = ptArray[plotPointIndex].X - xpos;
ydiff = ptArray[plotPointIndex].Y - ypos;
xpos = ptArray[plotPointIndex].X;
ypos = ptArray[plotPointIndex].Y;
g.TranslateTransform(xdiff, ydiff);
if (null != cachedPathData.InsetPath)
g.FillPath(cachedBrushData.InsetBrush, cachedPathData.InsetPath);
if (null != cachedPathData.FillPath)
g.FillPath(cachedBrushData.FillBrush, cachedPathData.FillPath);
if (null != cachedPathData.FramePath)
g.FillPath(cachedBrushData.FrameBrush, cachedPathData.FramePath);
}
}
g.Restore(gs); // Restore the graphics state
}
/// <summary>
/// Calculates the brushes.
/// </summary>
/// <param name="scatterSymbol">ScatterSymbol, already processed via <see cref="CalculateOverriddenScatterSymbol"/></param>
/// <param name="plotColor">The current plot color.</param>
/// <param name="cachedPathData">The cached path data.</param>
/// <param name="cachedBrushData">Cached brush data, which will be filled-in during this call..</param>
/// <returns>True if new cached brush data were calculated; false if the cached data were up-to-date.</returns>
private bool CalculateBrushes(IScatterSymbol scatterSymbol, NamedColor plotColor, CachedPathData cachedPathData, ref CachedBrushData cachedBrushData)
{
if (plotColor == cachedBrushData.PlotColor)
return false; // cached data valid and could be reused;
cachedBrushData.Clear();
cachedBrushData.PlotColor = plotColor;
var plotColorInfluence = _overridePlotColorInfluence ?? scatterSymbol.PlotColorInfluence;
if (null != cachedPathData.InsetPath)
{
var insetColor = _overrideInsetColor ?? scatterSymbol.Inset.Color;
if (plotColorInfluence.HasFlag(PlotColorInfluence.InsetColorFull))
insetColor = plotColor;
else if (plotColorInfluence.HasFlag(PlotColorInfluence.InsetColorPreserveAlpha))
insetColor = plotColor.NewWithAlphaValue(insetColor.Color.A);
cachedBrushData.InsetBrush = new SolidBrush(insetColor);
}
if (null != cachedPathData.FillPath)
{
var fillColor = _overrideFillColor ?? scatterSymbol.FillColor;
if (plotColorInfluence.HasFlag(PlotColorInfluence.FillColorFull))
fillColor = plotColor;
else if (plotColorInfluence.HasFlag(PlotColorInfluence.FillColorPreserveAlpha))
fillColor = plotColor.NewWithAlphaValue(fillColor.Color.A);
cachedBrushData.FillBrush = new SolidBrush(fillColor);
}
if (null != cachedPathData.FramePath)
{
var frameColor = _overrideFrameColor ?? scatterSymbol.Frame.Color;
if (plotColorInfluence.HasFlag(PlotColorInfluence.FrameColorFull))
frameColor = plotColor;
else if (plotColorInfluence.HasFlag(PlotColorInfluence.FrameColorPreserveAlpha))
frameColor = plotColor.NewWithAlphaValue(frameColor.Color.A);
cachedBrushData.FrameBrush = new SolidBrush(frameColor);
}
return true;
}
