/// <summary>
/// Returns a y-axis that is suitable for drawing the data.
/// </summary>
/// <returns>A suitable y-axis.</returns>
public Axis SuggestYAxis()
{
double min_l;
double max_l;
double min_h;
double max_h;
if (this.rows_ == null)
{
Utils.ArrayMinMax((System.Collections.IList)lowData_, out min_l, out max_l);
Utils.ArrayMinMax((System.Collections.IList)highData_, out min_h, out max_h);
}
else
{
Utils.RowArrayMinMax(this.rows_, out min_l, out max_l, (string)this.lowData_);
Utils.RowArrayMinMax(this.rows_, out min_h, out max_h, (string)this.highData_);
}
Axis a = new LinearAxis( min_l, max_h );
a.IncreaseRange( 0.08 );
return a;
}
public void PlotWavelet()
{
string lines = "Wavelet Example. Demonstrates - * Reversing axes, setting number of tick marks on axis explicitly.";
infoBox.Text = lines;
this.plotSurface.Clear();
// Create a new line plot from array data via the ArrayAdapter class.
LinePlot lp = new LinePlot();
lp.DataSource = makeDaub(256);
lp.Color = Color.Green;
lp.Label = "Daubechies Wavelet"; // no legend, but still useful for copy data to clipboard.
Grid myGrid = new Grid();
myGrid.VerticalGridType = Grid.GridType.Fine;
myGrid.HorizontalGridType = Grid.GridType.Coarse;
this.plotSurface.Add(myGrid);
// And add it to the plot surface
this.plotSurface.Add( lp );
this.plotSurface.Title = "Reversed / Upside down Daubechies Wavelet";
// Ok, the above will produce a decent default plot, but we would like to change
// some of the Y Axis details. First, we'd like lots of small ticks (10) between
// large tick values. Secondly, we'd like to draw a grid for the Y values. To do
// this, we create a new LinearAxis (we could also use Label, Log etc). Rather than
// starting from scratch, we use the constructor that takes an existing axis and
// clones it (values in the superclass Axis only are cloned). PlotSurface2D
// automatically determines a suitable axis when we add plots to it (merging
// current requirements with old requirements), and we use this as our starting
// point. Because we didn't specify which Y Axis we are using when we added the
// above line plot (there is one on the left - YAxis1 and one on the right - YAxis2)
// PlotSurface2D.Add assumed we were using YAxis1. So, we create a new axis based on
// YAxis1, update the details we want, then set the YAxis1 to be our updated one.
LinearAxis myAxis = new LinearAxis( this.plotSurface.YAxis1 );
myAxis.NumberOfSmallTicks = 2;
this.plotSurface.YAxis1 = myAxis;
// We would also like to modify the way in which the X Axis is printed. This time,
// we'll just modify the relevant PlotSurface2D Axis directly.
this.plotSurface.XAxis1.WorldMax = 100.0f;
this.plotSurface.PlotBackColor = Color.OldLace;
this.plotSurface.XAxis1.Reversed = true;
this.plotSurface.YAxis1.Reversed = true;
// Force a re-draw of the control.
this.plotSurface.Refresh();
}
public void PlotLogAxis()
{
string lines = "Log Example. Demonstrates - * How to chart data against log axes and linear axes at the same time.";
infoBox.Text = lines;
plotSurface.Clear();
// draw a fine grid.
Grid fineGrid = new Grid();
fineGrid.VerticalGridType = Grid.GridType.Fine;
fineGrid.HorizontalGridType = Grid.GridType.Fine;
plotSurface.Add( fineGrid );
const int npt = 101;
float[] x = new float[npt];
float[] y = new float[npt];
float step = 0.1f;
for (int i=0; i<npt; ++i)
{
x[i] = i*step - 5.0f;
y[i] = (float)Math.Pow( 10.0, x[i] );
}
float xmin = x[0];
float xmax = x[npt-1];
float ymin = (float)Math.Pow( 10.0, xmin );
float ymax = (float)Math.Pow( 10.0, xmax );
LinePlot lp = new LinePlot();
lp.OrdinateData = y;
lp.AbscissaData = x;
lp.Pen = new Pen( Color.Red );
plotSurface.Add( lp );
LogAxis loga = new LogAxis( plotSurface.YAxis1 );
loga.WorldMin = ymin;
loga.WorldMax = ymax;
loga.AxisColor = Color.Red;
loga.LabelColor = Color.Red;
loga.TickTextColor = Color.Red;
loga.LargeTickStep = 1.0f;
loga.Label = "10^x";
plotSurface.YAxis1 = loga;
LinePlot lp1 = new LinePlot();
lp1.OrdinateData = y;
lp1.AbscissaData = x;
lp1.Pen = new Pen( Color.Blue );
plotSurface.Add( lp1, PlotSurface2D.XAxisPosition.Bottom, PlotSurface2D.YAxisPosition.Right );
LinearAxis lin = new LinearAxis( plotSurface.YAxis2 );
lin.WorldMin = ymin;
lin.WorldMax = ymax;
lin.AxisColor = Color.Blue;
lin.LabelColor = Color.Blue;
lin.TickTextColor = Color.Blue;
lin.Label = "10^x";
plotSurface.YAxis2 = lin;
LinearAxis lx = (LinearAxis)plotSurface.XAxis1;
lx.WorldMin = xmin;
lx.WorldMax = xmax;
lx.Label = "x";
//((LogAxis)plotSurface.YAxis1).LargeTickStep = 2;
plotSurface.Title = "Mixed Linear/Log Axes";
plotSurface.XAxis1.LabelOffset = 0;
plotSurface.YAxis1.LabelOffset = 0;
plotSurface.Refresh();
}
private void chart3_InteractionOccured(object sender)
{
LinearAxis axis1 = new LinearAxis(chart3.XAxis1);
axis1.Label = "";
axis1.HideTickText = true;
this.chart2.XAxis1 = axis1;
this.chart2.Refresh();
LinearAxis axis2 = new LinearAxis(chart3.XAxis1);
axis2.Label = "";
axis2.HideTickText = true;
this.chart1.XAxis1 = axis2;
this.chart1.Refresh();
SetStatusNow();
}
private void chart2_InteractionOccured(object sender)
{
LinearAxis axis1 = new LinearAxis(chart2.XAxis1);
axis1.Label = "";
axis1.HideTickText = true;
this.chart1.XAxis1 = axis1;
this.chart1.Refresh();
LabelAxis axis2 = new LabelAxis(chart2.XAxis1);
int tick = 1;
if (chart2.XAxis1.WorldMax - chart2.XAxis1.WorldMin > 30)
tick = 2;
for (int i = (int)chart2.XAxis1.WorldMin; i <= chart2.XAxis1.WorldMax; i+=tick)
{
int j = i % 24;
if (j < 0) j += 24;
axis2.AddLabel(Convert.ToString(j), i);
}
axis2.Label = "Time:Hour";
axis2.HideTickText = false;
chart3.XAxis1 = axis2;
this.chart3.Refresh();
SetStatusNow();
}
/// <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();
}
}
/// <summary>
/// Helper method for Clone.
/// </summary>
protected void DoClone( LinearAxis b, LinearAxis a )
{
Axis.DoClone( b, a );
a.numberSmallTicks_ = b.numberSmallTicks_;
a.largeTickValue_ = b.largeTickValue_;
a.largeTickStep_ = b.largeTickStep_;
a.offset_ = b.offset_;
a.scale_ = b.scale_;
}
/// <summary>
/// Deep copy of LinearAxis.
/// </summary>
/// <returns>A copy of the LinearAxis Class</returns>
public override object Clone()
{
LinearAxis a = new LinearAxis();
// ensure that this isn't being called on a derived type. If it is, then oh no!
if (this.GetType() != a.GetType())
{
throw new NPlotException( "Clone not defined in derived type. Help!" );
}
this.DoClone( this, a );
return a;
}