public void PlotTest()
{
plotSurface.Clear();
// can plot different types.
ArrayList l = new ArrayList();
l.Add( (int)2 );
l.Add( (double)1.0 );
l.Add( (float)3.0 );
l.Add( (int)5.0 );
LinePlot lp1 = new LinePlot( new double[] {4.0, 3.0, 5.0, 8.0} );
lp1.Pen = new Pen( Color.LightBlue );
lp1.Pen.Width = 2.0f;
//lp.AbscissaData = new StartStep( 0.0, 2.0 );
LinePlot lp2 = new LinePlot( new double[] {2.0, 1.0, 4.0, 5.0} );
lp2.Pen = new Pen( Color.LightBlue );
lp2.Pen.Width = 2.0f;
FilledRegion fr = new FilledRegion( lp1, lp2 );
plotSurface.Add(fr);
plotSurface.Add( new Grid() );
plotSurface.Add(lp1);
plotSurface.Add(lp2);
ArrowItem a = new ArrowItem( new PointD( 2, 4 ), -50.0f, "Arrow" );
a.HeadOffset = 5;
a.ArrowColor = Color.Red;
a.TextColor = Color.Purple;
plotSurface.Add( a );
MarkerItem m = new MarkerItem( new Marker( Marker.MarkerType.TriangleDown, 8, Color.ForestGreen ), 1.38, 2.9 );
plotSurface.Add( m );
plotSurface.XAxis1.TicksCrossAxis = true;
((LinearAxis)plotSurface.XAxis1).LargeTickValue = -4.1;
((LinearAxis)plotSurface.XAxis1).AutoScaleText = true;
((LinearAxis)plotSurface.XAxis1).TicksIndependentOfPhysicalExtent = true;
//plotSurface.XAxis1.Label = "Hello world";
plotSurface.Refresh();
/*
plotSurface.AutoScaleTitle = false;
plotSurface.AutoScaleAutoGeneratedAxes = true;
plotSurface.Title = "My Title";
double[] a = { 0, 2, 1, 4, double.NaN, double.NaN, 5, 8, 7, 9 };
LinePlot lp = new LinePlot();
lp.DataSource = a;
lp.Label = "My Label";
plotSurface.Add( lp );
plotSurface.Legend = new Legend();
plotSurface.Legend.AutoScaleText = false;
plotSurface.Legend.NeverShiftAxes = true;
plotSurface.Legend.HorizontalEdgePlacement = Legend.Placement.Inside;
plotSurface.Legend.VerticalEdgePlacement = Legend.Placement.Inside;
plotSurface.Legend.XOffset = -10;
plotSurface.Legend.YOffset = 10;
//plotSurface.AddAxesConstraint( new AxesConstraint.EqualSpacing() );
((LinearAxis)plotSurface.XAxis1).Offset = 10.0;
((LinearAxis)plotSurface.XAxis1).Scale = 27.0;
//((LinearAxis)plotSurface.XAxis1).TicksIndependentOfPhysicalExtent = true;
//((LinearAxis)plotSurface.YAxis1).TicksIndependentOfPhysicalExtent = true;
AxesConstraint.AxisPosition c1 =
new NPlot.AxesConstraint.AxisPosition( PlotSurface2D.YAxisPosition.Left, 100.0f );
AxesConstraint.AspectRatio c2 =
new AxesConstraint.AspectRatio( 5.0f, PlotSurface2D.YAxisPosition.Left );
plotSurface.AddAxesConstraint( c1 );
plotSurface.AddAxesConstraint( c2 );
plotSurface.Refresh();
*/
}
public PlotDataset()
{
infoText = "";
infoText += "Stock Dataset Sample. Demonstrates - \n";
infoText += " * CandlePlot, FilledRegion, LinePlot and ArrowItem IDrawables \n";
infoText += " * DateTime axes \n";
infoText += " * Horizontal Drag Interaction - try dragging (and Ctrl-dragging) the plot surface \n";
infoText += " * Axis Drag Interaction - try dragging in the horizontal and vertical Axis areas";
plotSurface.Clear();
// [NOTIMP] plotSurface.DateTimeToolTip = true;
// obtain stock information from xml file
DataSet ds = new DataSet();
System.IO.Stream file =
Assembly.GetExecutingAssembly().GetManifestResourceStream( "GtkTest.Resources.asx_jbh.xml" );
ds.ReadXml( file, System.Data.XmlReadMode.ReadSchema );
DataTable dt = ds.Tables[0];
// DataView dv = new DataView( dt );
// create CandlePlot.
CandlePlot cp = new CandlePlot();
cp.DataSource = dt;
cp.AbscissaData = "Date";
cp.OpenData = "Open";
cp.LowData = "Low";
cp.HighData = "High";
cp.CloseData = "Close";
cp.BearishColor = Color.Red;
cp.BullishColor = Color.Green;
cp.Style = CandlePlot.Styles.Filled;
// calculate 10 day moving average and 2*sd line
ArrayList av10 = new ArrayList();
ArrayList sd2_10 = new ArrayList();
ArrayList sd_2_10 = new ArrayList();
ArrayList dates = new ArrayList();
for (int i=0; i<dt.Rows.Count-10; ++i)
{
float sum = 0.0f;
for (int j=0; j<10; ++j)
{
sum += (float)dt.Rows[i+j]["Close"];
}
float average = sum / 10.0f;
av10.Add( average );
sum = 0.0f;
for (int j=0; j<10; ++j)
{
sum += ((float)dt.Rows[i+j]["Close"]-average)*((float)dt.Rows[i+j]["Close"]-average);
}
sum /= 10.0f;
sum = 2.0f*(float)Math.Sqrt( sum );
sd2_10.Add( average + sum );
sd_2_10.Add( average - sum );
dates.Add( (DateTime)dt.Rows[i+10]["Date"] );
}
// and a line plot of close values.
LinePlot av = new LinePlot();
av.OrdinateData = av10;
av.AbscissaData = dates;
av.Color = Color.LightGray;
av.Pen.Width = 2.0f;
LinePlot top = new LinePlot();
top.OrdinateData = sd2_10;
top.AbscissaData = dates;
top.Color = Color.LightSteelBlue;
top.Pen.Width = 2.0f;
LinePlot bottom = new LinePlot();
bottom.OrdinateData = sd_2_10;
bottom.AbscissaData = dates;
bottom.Color = Color.LightSteelBlue;
bottom.Pen.Width = 2.0f;
FilledRegion fr = new FilledRegion( top, bottom );
fr.RectangleBrush = new RectangleBrushes.Vertical( Color.FromArgb(255,255,240), Color.FromArgb(240,255,255) );
plotSurface.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
plotSurface.Add( fr );
plotSurface.Add( new Grid() );
plotSurface.Add( av );
plotSurface.Add( top );
plotSurface.Add( bottom );
plotSurface.Add( cp );
// now make an arrow...
ArrowItem arrow = new ArrowItem( new PointD( ((DateTime)dt.Rows[60]["Date"]).Ticks, 2.28 ), -80, "An interesting flat bit" );
arrow.ArrowColor = Color.DarkBlue;
arrow.PhysicalLength = 50;
plotSurface.Add (arrow);
plotSurface.Title = "AU:JBH";
plotSurface.XAxis1.Label = "Date / Time";
plotSurface.XAxis1.WorldMin += plotSurface.XAxis1.WorldLength / 4.0;
plotSurface.XAxis1.WorldMax -= plotSurface.XAxis1.WorldLength / 2.0;
plotSurface.YAxis1.Label = "Price [$]";
plotSurface.XAxis1 = new TradingDateTimeAxis( plotSurface.XAxis1 );
plotSurface.AddInteraction (new PlotDrag(true,false));
plotSurface.AddInteraction (new AxisDrag());
// make sure plot surface colors are as we expect - the wave example changes them.
plotSurface.PlotBackColor = Color.White;
plotSurface.XAxis1.Color = Color.Black;
plotSurface.YAxis1.Color = Color.Black;
plotSurface.Refresh();
}
void PlotDataSet()
{
plotSurface.Clear();
// obtain stock information from xml file
DataSet ds = new DataSet();
System.IO.Stream file =
Assembly.GetExecutingAssembly().GetManifestResourceStream( "NPlotDemo.resources.asx_jbh.xml" );
ds.ReadXml( file, System.Data.XmlReadMode.ReadSchema );
DataTable dt = ds.Tables[0];
// create CandlePlot.
CandlePlot cp = new CandlePlot();
cp.DataSource = dt;
cp.AbscissaData = "Date";
cp.OpenData = "Open";
cp.LowData = "Low";
cp.HighData = "High";
cp.CloseData = "Close";
cp.BearishColor = Color.Red;
cp.BullishColor = Color.Green;
cp.Style = CandlePlot.Styles.Filled;
// calculate 10 day moving average and 2*sd line
ArrayList av10 = new ArrayList();
ArrayList sd2_10 = new ArrayList();
ArrayList sd_2_10 = new ArrayList();
ArrayList dates = new ArrayList();
for (int i=0; i<dt.Rows.Count-10; ++i)
{
float sum = 0.0f;
for (int j=0; j<10; ++j)
{
sum += (float)dt.Rows[i+j]["Close"];
}
float average = sum / 10.0f;
av10.Add( average );
sum = 0.0f;
for (int j=0; j<10; ++j)
{
sum += ((float)dt.Rows[i+j]["Close"]-average)*((float)dt.Rows[i+j]["Close"]-average);
}
sum /= 10.0f;
sum = 2.0f*(float)Math.Sqrt( sum );
sd2_10.Add( average + sum );
sd_2_10.Add( average - sum );
dates.Add( (DateTime)dt.Rows[i+10]["Date"] );
}
// and a line plot of close values.
LinePlot av = new LinePlot();
av.OrdinateData = av10;
av.AbscissaData = dates;
av.Color = Color.LightGray;
av.Pen.Width = 2.0f;
LinePlot top = new LinePlot();
top.OrdinateData = sd2_10;
top.AbscissaData = dates;
top.Color = Color.LightSteelBlue;
top.Pen.Width = 2.0f;
LinePlot bottom = new LinePlot();
bottom.OrdinateData = sd_2_10;
bottom.AbscissaData = dates;
bottom.Color = Color.LightSteelBlue;
bottom.Pen.Width = 2.0f;
FilledRegion fr = new FilledRegion( top, bottom );
//fr.RectangleBrush = new RectangleBrushes.Vertical( Color.FloralWhite, Color.GhostWhite );
fr.RectangleBrush = new RectangleBrushes.Vertical( Color.FromArgb(255,255,240), Color.FromArgb(240,255,255) );
plotSurface.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
plotSurface.Add( fr );
plotSurface.Add( new Grid() );
plotSurface.Add( av );
plotSurface.Add( top );
plotSurface.Add( bottom );
plotSurface.Add( cp );
// now make an arrow...
ArrowItem arrow = new ArrowItem( new PointD( ((DateTime)dt.Rows[60]["Date"]).Ticks, 2.28 ), -80, "An interesting flat bit" );
arrow.ArrowColor = Color.DarkBlue;
arrow.PhysicalLength = 50;
plotSurface.Add( arrow );
plotSurface.Title = "AU:JBH";
plotSurface.XAxis1.Label = "Date / Time";
plotSurface.YAxis1.Label = "Price [$]";
plotSurface.Refresh();
plotSurface.Refresh();
}