private void DrawAxisTests(Context ctx, Rectangle bounds)
{
Rectangle boundingBox;
Point tl = Point.Zero;
Point br = Point.Zero;;
tl.X = bounds.Left + 30; tl.Y = bounds.Top + 20;
br.X = bounds.Right - 30; br.Y = bounds.Top + 20;
LogAxis log = new LogAxis (1, 10000);
log.Draw (ctx, tl, br, out boundingBox);
log.Reversed = true;
tl.Y += 50; br.Y += 50;
log.Draw (ctx, br, tl, out boundingBox);
// Test for default TicksAngle on positive X-axis, ie Ticks below X-axis
LogAxis lx = new LogAxis (100, 100000);
lx.NumberFormat = "{0:0.0E+0}";
tl.X = bounds.Left + 30; tl.Y = bounds.Bottom - 60;
br.X = bounds.Right - 30; br.Y = bounds.Bottom - 60;
lx.Draw (ctx, tl, br, out boundingBox);
}
/// <summary>
/// Helper method for Clone (actual implementation)
/// </summary>
/// <param name="a">The original object to clone.</param>
/// <param name="b">The cloned object.</param>
protected void DoClone(LogAxis b, LogAxis a)
{
Axis.DoClone(b,a);
// add specific elemtents of the class for the deep copy of the object
a.numberSmallTicks_ = b.numberSmallTicks_;
a.largeTickValue_ = b.largeTickValue_;
a.largeTickStep_ = b.largeTickStep_;
}
/// <summary>
/// Deep Copy of the LogAxis.
/// </summary>
/// <returns>A Copy of the LogAxis Class.</returns>
public override object Clone()
{
LogAxis a = new LogAxis();
if (this.GetType() != a.GetType())
{
throw new NPlotException("Clone not defined in derived type. Help!");
}
this.DoClone( this, a );
return a;
}
public PlotLogLin()
{
infoText = "";
infoText += "LogLin Example. Demonstrates - \n";
infoText += " * How to chart data against log axes and linear axes at the same time.";
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, XAxisPosition.Bottom, 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 = 20.0f;
plotSurface.Refresh();
}
public PlotLogLog()
{
infoText = "";
infoText += "LogLog Example. Demonstrates - \n";
infoText += " * How to chart data against log axes and linear axes at the same time. \n";
infoText += " * Plot Drag (Vertical) - try clicking and dragging in the Plot area \n";
infoText += " * Plot Drag (Vertical) - try Ctrl + clicking and dragging in the Plot area";
// log log plot
plotSurface.Clear();
Grid mygrid = new Grid();
mygrid.HorizontalGridType = Grid.GridType.Fine;
mygrid.VerticalGridType = Grid.GridType.Fine;
plotSurface.Add(mygrid);
int npt = 101;
float [] x = new float[npt];
float [] y = new float[npt];
float step=0.1f;
// plot a power law on the log-log scale
for (int i=0; i<npt; ++i)
{
x[i] = (i+1)*step;
y[i] = x[i]*x[i];
}
float xmin = x[0];
float xmax = x[npt-1];
float ymin = y[0];
float ymax = y[npt-1];
LinePlot lp = new LinePlot();
lp.OrdinateData = y;
lp.AbscissaData = x;
lp.Pen = new Pen( Color.Red );
plotSurface.Add( lp );
// axes
// x axis
LogAxis logax = new LogAxis( plotSurface.XAxis1 );
logax.WorldMin = xmin;
logax.WorldMax = xmax;
logax.AxisColor = Color.Red;
logax.LabelColor = Color.Red;
logax.TickTextColor = Color.Red;
logax.LargeTickStep = 1.0f;
logax.Label = "x";
plotSurface.XAxis1 = logax;
// y axis
LogAxis logay = new LogAxis( plotSurface.YAxis1 );
logay.WorldMin = ymin;
logay.WorldMax = ymax;
logay.AxisColor = Color.Red;
logay.LabelColor = Color.Red;
logay.TickTextColor = Color.Red;
logay.LargeTickStep = 1.0f;
logay.Label = "x^2";
plotSurface.YAxis1 = logay;
LinePlot lp1 = new LinePlot();
lp1.OrdinateData = y;
lp1.AbscissaData = x;
lp1.Pen = new Pen( Color.Blue );
plotSurface.Add( lp1, XAxisPosition.Top, YAxisPosition.Right );
// axes
// x axis (lin)
LinearAxis linx = (LinearAxis) plotSurface.XAxis2;
linx.WorldMin = xmin;
linx.WorldMax = xmax;
linx.AxisColor = Color.Blue;
linx.LabelColor = Color.Blue;
linx.TickTextColor = Color.Blue;
linx.Label = "x";
plotSurface.XAxis2 = linx;
// y axis (lin)
LinearAxis liny = (LinearAxis) plotSurface.YAxis2;
liny.WorldMin = ymin;
liny.WorldMax = ymax;
liny.AxisColor = Color.Blue;
liny.LabelColor = Color.Blue;
liny.TickTextColor = Color.Blue;
liny.Label = "x^2";
plotSurface.YAxis2 = liny;
plotSurface.Title = "x^2 plotted with log(red)/linear(blue) axes";
plotSurface.AddInteraction ( new PlotDrag(false,true));
plotSurface.Refresh();
}
public void PlotLogLog()
{
// log log plot
plotSurface.Clear();
Grid mygrid = new Grid();
mygrid.HorizontalGridType = Grid.GridType.Fine;
mygrid.VerticalGridType = Grid.GridType.Fine;
plotSurface.Add(mygrid);
int npt = 101;
float [] x = new float[npt];
float [] y = new float[npt];
float step=0.1f;
// plot a power law on the log-log scale
for (int i=0; i<npt; ++i)
{
x[i] = (i+1)*step;
y[i] = x[i]*x[i];
}
float xmin = x[0];
float xmax = x[npt-1];
float ymin = y[0];
float ymax = y[npt-1];
LinePlot lp = new LinePlot();
lp.OrdinateData = y;
lp.AbscissaData = x;
lp.Pen = new Pen( Color.Red );
plotSurface.Add( lp );
// axes
// x axis
LogAxis logax = new LogAxis( plotSurface.XAxis1 );
logax.WorldMin = xmin;
logax.WorldMax = xmax;
logax.AxisColor = Color.Red;
logax.LabelColor = Color.Red;
logax.TickTextColor = Color.Red;
logax.LargeTickStep = 1.0f;
logax.Label = "x";
plotSurface.XAxis1 = logax;
// y axis
LogAxis logay = new LogAxis( plotSurface.YAxis1 );
logay.WorldMin = ymin;
logay.WorldMax = ymax;
logay.AxisColor = Color.Red;
logay.LabelColor = Color.Red;
logay.TickTextColor = Color.Red;
logay.LargeTickStep = 1.0f;
logay.Label = "x^2";
plotSurface.YAxis1 = logay;
LinePlot lp1 = new LinePlot();
lp1.OrdinateData = y;
lp1.AbscissaData = x;
lp1.Pen = new Pen( Color.Blue );
plotSurface.Add( lp1, PlotSurface2D.XAxisPosition.Top, PlotSurface2D.YAxisPosition.Right );
// axes
// x axis (lin)
LinearAxis linx = (LinearAxis) plotSurface.XAxis2;
linx.WorldMin = xmin;
linx.WorldMax = xmax;
linx.AxisColor = Color.Blue;
linx.LabelColor = Color.Blue;
linx.TickTextColor = Color.Blue;
linx.Label = "x";
plotSurface.XAxis2 = linx;
// y axis (lin)
LinearAxis liny = (LinearAxis) plotSurface.YAxis2;
liny.WorldMin = ymin;
liny.WorldMax = ymax;
liny.AxisColor = Color.Blue;
liny.LabelColor = Color.Blue;
liny.TickTextColor = Color.Blue;
liny.Label = "x^2";
plotSurface.YAxis2 = liny;
plotSurface.Title = "x^2 plotted with log(red)/linear(blue) axes";
plotSurface.Refresh();
}