/// <summary>
/// Stack the histogram to another HistogramPlot.
/// </summary>
public void StackedTo(HistogramPlot hp)
{
SequenceAdapter data =
new SequenceAdapter(this.DataSource, this.DataMember, this.OrdinateData, this.AbscissaData);
SequenceAdapter hpData =
new SequenceAdapter(hp.DataSource, hp.DataMember, hp.OrdinateData, hp.AbscissaData);
if (hp != null)
{
isStacked_ = true;
if (hpData.Count != data.Count)
{
throw new NPlotException("Can stack HistogramPlot data only with the same number of datapoints.");
}
for (int i = 0; i < data.Count; ++i)
{
if (data[i].X != hpData[i].X)
{
throw new NPlotException("Can stack HistogramPlot data only with the same X coordinates.");
}
if (hpData[i].Y < 0.0f)
{
throw new NPlotException("Can stack HistogramPlot data only with positive Y coordinates.");
}
}
}
stackedTo_ = hp;
}
void Refresh(object sender, EventArgs e)
{
_plotSurface.Clear();
_plotSurface.BackColor = Color.Black;
if (!_component.ComputeHistogram())
{
_plotSurface.Refresh();
return;
}
HistogramPlot histogram = new HistogramPlot();
histogram.AbscissaData = _component.BinLabels;
histogram.OrdinateData = _component.Bins;
histogram.Center = false;
histogram.BaseWidth = 1.0f;
histogram.Filled = true;
histogram.Pen = new Pen(ClearCanvasStyle.ClearCanvasBlue);
histogram.RectangleBrush = new RectangleBrushes.Solid(ClearCanvasStyle.ClearCanvasBlue);
_plotSurface.Add(histogram);
_plotSurface.PlotBackColor = Color.Black;
_plotSurface.XAxis1.Color = Color.White;
_plotSurface.YAxis1.Color = Color.White;
_plotSurface.Refresh();
}
public HistogramSample()
: base()
{
infoText = "";
infoText += "Gaussian Example. Demonstrates - \n";
infoText += " * HistogramPlot and LinePlot" ;
plotCanvas.Clear();
System.Random r = new Random ();
int len = 35;
double[] a = new double [len];
double[] b = new double [len];
for (int i=0; i<len; ++i) {
a[i] = Math.Exp (-(double)(i-len/2)*(double)(i-len/2)/50.0);
b[i] = a[i] + (r.Next(10)/50.0f)-0.05f;
if (b[i] < 0) {
b[i] = 0;
}
}
HistogramPlot sp = new HistogramPlot ();
sp.DataSource = b;
sp.BorderColor = Colors.DarkBlue;
sp.Filled = true;
sp.FillColor = Colors.Gold; //Gradient (Colors.Lavender, Color.Gold );
sp.BaseWidth = 0.5;
sp.Label = "Random Data";
LinePlot lp = new LinePlot ();
lp.DataSource = a;
lp.LineColor = Colors.Blue;
lp.LineWidth = 3;
lp.Label = "Gaussian Function";
plotCanvas.Add (sp);
plotCanvas.Add (lp);
plotCanvas.Legend = new Legend ();
plotCanvas.YAxis1.WorldMin = 0.0;
plotCanvas.Title = "Histogram Plot";
PackStart (plotCanvas.Canvas, true);
Label la = new Label (infoText);
PackStart (la);
}
/// <summary>
/// Returns a y-axis that is suitable for drawing this plot.
/// </summary>
/// <returns>A suitable y-axis.</returns>
public Axis SuggestYAxis()
{
if (this.isStacked_)
{
double tmpMax = 0.0f;
ArrayList adapterList = new ArrayList();
HistogramPlot currentPlot = this;
do
{
adapterList.Add(new SequenceAdapter(
currentPlot.DataSource,
currentPlot.DataMember,
currentPlot.OrdinateData,
currentPlot.AbscissaData)
);
} while ((currentPlot = currentPlot.stackedTo_) != null);
SequenceAdapter[] adapters =
(SequenceAdapter[])adapterList.ToArray(typeof(SequenceAdapter));
for (int i = 0; i < adapters[0].Count; ++i)
{
double tmpHeight = 0.0f;
for (int j = 0; j < adapters.Length; ++j)
{
tmpHeight += adapters[j][i].Y;
}
tmpMax = Math.Max(tmpMax, tmpHeight);
}
Axis a = new LinearAxis(0.0f, tmpMax);
// TODO make 0.08 a parameter.
a.IncreaseRange(0.08);
return(a);
}
else
{
SequenceAdapter data =
new SequenceAdapter(this.DataSource, this.DataMember, this.OrdinateData, this.AbscissaData);
return(data.SuggestYAxis());
}
}
public PlotGaussian()
{
infoText = "";
infoText += "Gaussian Example. Demonstrates - \n";
infoText += " * HistogramPlot and LinePlot." ;
plotSurface.Clear();
System.Random r = new Random();
int len = 35;
double[] a = new double[len];
double[] b = new double[len];
for (int i=0; i<len; ++i)
{
a[i] = (double)Math.Exp(-(double)(i-len/2)*(double)(i-len/2)/50.0f);
b[i] = a[i] + (r.Next(10)/50.0f)-0.05f;
if (b[i] < 0.0f) {
b[i] = 0;
}
}
HistogramPlot sp = new HistogramPlot();
sp.DataSource = b;
sp.Pen = Pens.DarkBlue;
sp.Filled = true;
sp.RectangleBrush = new RectangleBrushes.HorizontalCenterFade( Color.Lavender, Color.Gold );
sp.BaseWidth = 0.5f;
sp.Label = "Random Data";
LinePlot lp = new LinePlot();
lp.DataSource = a;
lp.Pen = new Pen( Color.Blue, 3.0f );
lp.Label = "Gaussian Function";
plotSurface.Add( sp );
plotSurface.Add( lp );
plotSurface.Legend = new Legend();
plotSurface.YAxis1.WorldMin = 0.0f;
plotSurface.Title = "Histogram Plot";
plotSurface.Refresh();
}
/// <summary>
/// Stack the histogram to another HistogramPlot.
/// </summary>
public void StackedTo(HistogramPlot hp)
{
SequenceAdapter data =
new SequenceAdapter( this.DataSource, this.DataMember, this.OrdinateData, this.AbscissaData );
SequenceAdapter hpData =
new SequenceAdapter( hp.DataSource, hp.DataMember, hp.OrdinateData, hp.AbscissaData );
if ( hp != null )
{
isStacked_ = true;
if ( hpData.Count != data.Count )
{
throw new NPlotException("Can stack HistogramPlot data only with the same number of datapoints.");
}
for ( int i=0; i < data.Count; ++i )
{
if ( data[i].X != hpData[i].X )
{
throw new NPlotException("Can stack HistogramPlot data only with the same X coordinates.");
}
if ( hpData[i].Y < 0.0f)
{
throw new NPlotException("Can stack HistogramPlot data only with positive Y coordinates.");
}
}
}
stackedTo_ = hp;
}
public PlotLabelAxis()
{
infoText = "";
infoText += "Internet Usage Example. Demonstrates - \n";
infoText += " * Label Axis with angled text. \n";
infoText += " * RectangleBrushes.";
plotSurface.Clear();
Grid mygrid = new Grid();
mygrid.VerticalGridType = Grid.GridType.Coarse;
Pen majorGridPen = new Pen( Color.LightGray );
float[] pattern = { 1.0f, 2.0f };
majorGridPen.DashPattern = pattern;
mygrid.MajorGridPen = majorGridPen;
plotSurface.Add( mygrid );
float[] xs = {20.0f, 31.0f, 27.0f, 38.0f, 24.0f, 3.0f, 2.0f };
float[] xs2 = {7.0f, 10.0f, 42.0f, 9.0f, 2.0f, 79.0f, 70.0f };
float[] xs3 = {1.0f, 20.0f, 20.0f, 25.0f, 10.0f, 30.0f, 30.0f };
HistogramPlot hp = new HistogramPlot();
hp.DataSource = xs;
hp.BaseWidth = 0.6f;
hp.RectangleBrush =
new RectangleBrushes.HorizontalCenterFade( Color.FromArgb(255,255,200), Color.White );
hp.Filled = true;
hp.Label = "Developer Work";
HistogramPlot hp2 = new HistogramPlot();
hp2.DataSource = xs2;
hp2.Label = "Web Browsing";
hp2.RectangleBrush = RectangleBrushes.Horizontal.FaintGreenFade;
hp2.Filled = true;
hp2.StackedTo( hp );
HistogramPlot hp3 = new HistogramPlot();
hp3.DataSource = xs3;
hp3.Label = "P2P Downloads";
hp3.RectangleBrush = RectangleBrushes.Vertical.FaintBlueFade;
hp3.Filled = true;
hp3.StackedTo( hp2 );
plotSurface.Add( hp );
plotSurface.Add( hp2 );
plotSurface.Add( hp3 );
plotSurface.Legend = new Legend();
LabelAxis la = new LabelAxis( plotSurface.XAxis1 );
la.AddLabel( "Monday", 0.0f );
la.AddLabel( "Tuesday", 1.0f );
la.AddLabel( "Wednesday", 2.0f );
la.AddLabel( "Thursday", 3.0f );
la.AddLabel( "Friday", 4.0f );
la.AddLabel( "Saturday", 5.0f );
la.AddLabel( "Sunday", 6.0f );
la.Label = "Days";
la.TickTextFont = new Font( "Courier New", 8 );
la.TicksBetweenText = true;
plotSurface.XAxis1 = la;
plotSurface.YAxis1.WorldMin = 0.0;
plotSurface.YAxis1.Label = "MBytes";
((LinearAxis)plotSurface.YAxis1).NumberOfSmallTicks = 1;
plotSurface.Title = "Internet useage for user:\n johnc 09/01/03 - 09/07/03";
plotSurface.XAxis1.TicksLabelAngle = 30.0f;
plotSurface.PlotBackBrush = RectangleBrushes.Vertical.FaintRedFade;
plotSurface.Refresh();
}
/// <summary>
/// Renders the histogram.
/// </summary>
/// <param name="g">The Graphics surface on which to draw</param>
/// <param name="xAxis">The X-Axis to draw against.</param>
/// <param name="yAxis">The Y-Axis to draw against.</param>
public void Draw(Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis)
{
SequenceAdapter data =
new SequenceAdapter(this.DataSource, this.DataMember, this.OrdinateData, this.AbscissaData);
float yoff;
for (int i = 0; i < data.Count; ++i)
{
// (1) determine the top left hand point of the bar (assuming not centered)
PointD p1 = data[i];
if (double.IsNaN(p1.X) || double.IsNaN(p1.Y))
{
continue;
}
// (2) determine the top right hand point of the bar (assuming not centered)
PointD p2;
if (i + 1 != data.Count)
{
p2 = data[i + 1];
if (double.IsNaN(p2.X) || double.IsNaN(p2.Y))
{
continue;
}
p2.Y = p1.Y;
}
else if (i != 0)
{
p2 = data[i - 1];
if (double.IsNaN(p2.X) || double.IsNaN(p2.Y))
{
continue;
}
double offset = p1.X - p2.X;
p2.X = p1.X + offset;
p2.Y = p1.Y;
}
else
{
double offset = 1.0f;
p2.X = p1.X + offset;
p2.Y = p1.Y;
}
// (3) now account for plots this may be stacked on top of.
HistogramPlot currentPlot = this;
yoff = 0.0f;
double yval = 0.0f;
while (currentPlot.isStacked_)
{
SequenceAdapter stackedToData = new SequenceAdapter(
currentPlot.stackedTo_.DataSource,
currentPlot.stackedTo_.DataMember,
currentPlot.stackedTo_.OrdinateData,
currentPlot.stackedTo_.AbscissaData);
yval += stackedToData[i].Y;
yoff = yAxis.WorldToPhysical(yval, false).Y;
p1.Y += stackedToData[i].Y;
p2.Y += stackedToData[i].Y;
currentPlot = currentPlot.stackedTo_;
}
// (4) now account for centering
if (center_)
{
double offset = (p2.X - p1.X) / 2.0f;
p1.X -= offset;
p2.X -= offset;
}
// (5) now account for BaseOffset (shift of bar sideways).
p1.X += baseOffset_;
p2.X += baseOffset_;
// (6) now get physical coordinates of top two points.
PointF xPos1 = xAxis.WorldToPhysical(p1.X, false);
PointF yPos1 = yAxis.WorldToPhysical(p1.Y, false);
PointF xPos2 = xAxis.WorldToPhysical(p2.X, false);
PointF yPos2 = yAxis.WorldToPhysical(p2.Y, false);
if (isStacked_)
{
currentPlot = this;
while (currentPlot.isStacked_)
{
currentPlot = currentPlot.stackedTo_;
}
this.baseWidth_ = currentPlot.baseWidth_;
}
float width = xPos2.X - xPos1.X;
float height;
if (isStacked_)
{
height = -yPos1.Y + yoff;
}
else
{
height = -yPos1.Y + yAxis.PhysicalMin.Y;
}
float xoff = (1.0f - baseWidth_) / 2.0f * width;
Rectangle r = new Rectangle((int)(xPos1.X + xoff), (int)yPos1.Y, (int)(width - 2 * xoff), (int)height);
if (this.Filled)
{
if (r.Height != 0 && r.Width != 0)
{
// room for optimization maybe.
g.FillRectangle(rectangleBrush_.Get(r), r);
}
}
g.DrawRectangle(Pen, r.X, r.Y, r.Width, r.Height);
}
}
public void Draw()
{
this.plot.PlotBackColor = Color.White;
this.plot.BackColor = Color.White;
ArrayList xs1 = new ArrayList();
ArrayList times = new ArrayList();
int split = 1;
long lap = 0;
float max = 0;
float min = 32767 * 32767;
long nlaps = 0;
long totaltime = 0;
this.plot.Clear();
if (((long[])splits[winner]).Length < nsplits)
return;
for (int i = nsplits; i < ((long[])splits[winner]).Length; ++i)
{
lap += ((long[])splits[winner])[i];
if (i != 0) lap -= ((long[])splits[winner])[i - 1];
if (split == nsplits)
{
//times.Add(" " + timetostr(lap));
string time = " " + timetostr(lap, true) + " : ";
for (int s = nsplits - 1; s >= 0; --s)
{
if (i == nsplits && s == nsplits)
time += timetostr(((long[])splits[winner])[i - s], false);
else
time += timetostr(((long[])splits[winner])[i - s] - ((long[])splits[winner])[i - 1 - s], false);
if (s != 0)
time += " , ";
}
time += " ";
times.Add(time);
totaltime += lap;
++nlaps;
if (max < lap) max = lap;
if (min > lap) min = lap;
xs1.Add((double)lap);
split = 1;
lap = 0;
}
else split++;
}
if (nlaps != 0)
this.winner_avgtime = totaltime / nlaps;
if (nlaps == 0)
return;
Grid mygrid = new Grid();
mygrid.VerticalGridType = Grid.GridType.Coarse;
mygrid.HorizontalGridType = Grid.GridType.Coarse;
mygrid.MajorGridPen = new Pen(Color.LightGray, 1f);
this.plot.Add(mygrid);
for (int i = 0; i < xs1.Count; ++i)
{
double[] abscissa = { 0 };
double[] ordinate = { 0 };
if ((double)xs1[i] < winner_avgtime)
{
abscissa[0] = (i);
ordinate[0] = ((double)xs1[i]) / 10000.0;
HistogramPlot hp = new HistogramPlot();
hp.OrdinateData = ordinate;
hp.AbscissaData = abscissa;
hp.RectangleBrush = new RectangleBrushes.Horizontal(Color.FromArgb(106, 205, 84), Color.FromArgb(235, 255, 213));
hp.Pen.Color = Color.FromArgb(0, 150, 0);
hp.Filled = true;
hp.ShowInLegend = false;
this.plot.Add(hp);
}
if ((double)xs1[i] >= winner_avgtime)
{
abscissa[0] = i;
if (Settings.LimitLapTimes && (((double)xs1[i] - winner_avgtime) > (winner_avgtime - min) * Settings.LimitMultiplier))
ordinate[0] = (winner_avgtime + (winner_avgtime - min) * Settings.LimitMultiplier) / 10000.0;
else
ordinate[0] = ((double)xs1[i]) / 10000.0;
HistogramPlot hp = new HistogramPlot();
hp.OrdinateData = ordinate;
hp.AbscissaData = abscissa;
if (Settings.LimitLapTimes && (((double)xs1[i] - winner_avgtime) > (winner_avgtime - min) * Settings.LimitMultiplier))
{
hp.RectangleBrush = new RectangleBrushes.Horizontal(Color.FromArgb(190, 39, 92), Color.FromArgb(235, 124, 177));
}
else
{
hp.RectangleBrush = new RectangleBrushes.Horizontal(Color.FromArgb(235, 84, 137), Color.FromArgb(255, 230, 210));
}
hp.Pen.Color = Color.FromArgb(150, 0, 0);
hp.Filled = true;
hp.ShowInLegend = false;
this.plot.Add(hp);
}
}
//int xmax = ((long[])splits[winner]).Length / nsplits;
LabelAxis la = new LabelAxis(this.plot.XAxis1);
la.TicksBetweenText = false;
la.TicksCrossAxis = false;
la.LargeTickSize = 0;
la.TickTextFont = Settings.lapTimesFont;
for (int i = 0; i < times.Count; ++i)
la.AddLabel((string)times[i], i);
la.TicksLabelAngle = -90.0f;
this.plot.XAxis1 = la;
la = new LabelAxis((LabelAxis)la.Clone());
la.TicksBetweenText = false;
la.TicksCrossAxis = true;
la.LargeTickSize = 2;
la.TicksLabelAngle = -90.0f;
la.TickTextNextToAxis = false;
la.TickTextFont = Settings.commonFont;
for (int i = 0; i < times.Count; ++i)
{
la.AddLabel(System.Convert.ToString(i + 2), i);
}
la.LabelFont = Settings.commonFont;
this.plot.XAxis2 = la;
this.plot.YAxis1.TicksCrossAxis = true;
this.plot.YAxis1.Label = ((string)this.players[this.player]);
this.plot.YAxis1.LabelFont = Settings.titleFont;
this.plot.YAxis1.LabelOffset = 20;
this.plot.YAxis1.NumberFormat = "";
this.plot.YAxis1.TicksCrossAxis = false;
if (Settings.LimitToGlobalBestLap) this.plot.YAxis1.WorldMin = (double)this.bestlap / 10000.0;
((LinearAxis)this.plot.YAxis1).NumberOfSmallTicks = 4;
((LinearAxis)this.plot.YAxis1).LargeTickStep = 1;
((LinearAxis)this.plot.YAxis1).TicksLabelAngle = -90f;
HorizontalLine hl = new HorizontalLine((float)winner_avgtime / 10000, Color.Gray);
hl.Pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
this.plot.Add(hl);
this.laps = (int)nlaps;
// this.plot.YAxis1.WorldMax += 1;
if (this.plot.YAxis1.WorldMax - this.plot.YAxis1.WorldMin <= 0.1)
this.plot.YAxis1.WorldMax += 1;
this.plot.Refresh();
// System.Console.WriteLine(System.Convert.ToString(this.plot.YAxis1.WorldMin) + " " + System.Convert.ToString(this.plot.YAxis1.WorldMax));
}
public void PlotMultiHistogram()
{
double[] data = new double[] { 0, 4, 3, 2, 5, 4, 2, 3 };
double[] data2 = new double[] { 5, 2, 4, 1, 2, 1, 5, 3 };
HistogramPlot hp = new HistogramPlot();
hp.OrdinateData = data;
hp.RectangleBrush = RectangleBrushes.Horizontal.FaintRedFade;
hp.Filled = true;
hp.BaseOffset = -0.15;
hp.BaseWidth = 0.25f;
HistogramPlot hp2 = new HistogramPlot();
hp2.OrdinateData = data2;
hp2.RectangleBrush = RectangleBrushes.Horizontal.FaintGreenFade;
hp2.Filled = true;
hp2.BaseOffset = 0.15;
hp2.BaseWidth = 0.25f;
plotSurface.Clear();
plotSurface.Add(hp);
plotSurface.Add(hp2);
plotSurface.PlotBackBrush = RectangleBrushes.Vertical.FaintBlueFade;
plotSurface.Refresh();
}
public void PlotProfitLoss()
{
// this example will in the future demonstrate histogram plots with +- values.
// currently not used - histograms don't support this.
plotSurface.Clear();
int[] values = {-10,2,-3, 4, 6, -1, 10, 4, -4, -3 };
HistogramPlot hp = new HistogramPlot();
hp.OrdinateData = values;
plotSurface.Add(hp);
plotSurface.Refresh();
}
