public void CreateGraph_junk5( ZedGraphControl zgc )
{
GraphPane myPane = zgc.GraphPane;
// Set the title and axis labels
myPane.Title.Text = "Japanese Candlestick Chart Demo";
myPane.XAxis.Title.Text = "Trading Date";
myPane.YAxis.Title.Text = "Share Price, $US";
StockPointList spl = new StockPointList();
Random rand = new Random();
// First day is jan 1st
XDate xDate = new XDate( 2006, 1, 1 );
double open = 50.0;
for ( int i = 0; i < 1000; i++ )
{
double x = xDate.XLDate;
double close = open + rand.NextDouble() * 10.0 - 5.0;
double hi = Math.Max( open, close ) + rand.NextDouble() * 5.0;
double low = Math.Min( open, close ) - rand.NextDouble() * 5.0;
StockPt pt = new StockPt( x, hi, low, open, close, 100000 );
spl.Add( pt );
open = close;
if ( xDate.DateTime.Hour < 23 )
xDate.AddHours( 1.0 );
else
{
// Advance one day
xDate.AddHours( 1.0 );
// but skip the weekends
if ( XDate.XLDateToDayOfWeek( xDate.XLDate ) == 6 )
xDate.AddDays( 2.0 );
}
}
JapaneseCandleStickItem myCurve = myPane.AddJapaneseCandleStick( "trades", spl );
myCurve.Stick.IsAutoSize = true;
myCurve.Stick.Color = Color.Blue;
// Use DateAsOrdinal to skip weekend gaps
myPane.XAxis.Type = AxisType.DateAsOrdinal;
myPane.XAxis.Scale.Min = new XDate( 2006, 1, 1 );
myPane.XAxis.Scale.Format = "dd-MMM-yy hh:mm";
// pretty it up a little
myPane.Chart.Fill = new Fill( Color.White, Color.LightGoldenrodYellow, 45.0f );
myPane.Fill = new Fill( Color.White, Color.FromArgb( 220, 220, 255 ), 45.0f );
PointPairList ppl = new PointPairList();
for ( int i = 19; i < spl.Count; i++ )
{
double avg = 0.0;
for ( int j = 0; j < 20; j++ )
avg += spl.GetAt( i - j ).Close;
ppl.Add( i + 1, avg / 20.0 );
}
LineItem item = myPane.AddCurve( "MA-20", ppl, Color.Red );
item.IsOverrideOrdinal = true;
item.Line.Width = 3;
item.Symbol.Type = SymbolType.None;
item.Line.IsSmooth = true;
// Tell ZedGraph to calculate the axis ranges
zgc.AxisChange();
zgc.Invalidate();
}
/// <summary>
/// Determine the value for any minor tic.
/// </summary>
/// <remarks>
/// This method properly accounts for <see cref="IsLog"/>, <see cref="IsText"/>,
/// and other axis format settings.
/// </remarks>
/// <param name="baseVal">
/// The value of the first major tic (floating point double). This tic value is the base
/// reference for all tics (including minor ones).
/// </param>
/// <param name="iTic">
/// The major tic number (0 = first major tic). For log scales, this is the actual power of 10.
/// </param>
/// <returns>
/// The specified minor tic value (floating point double).
/// </returns>
private double CalcMinorTicValue( double baseVal, int iTic )
{
double[] dLogVal = { 0, 0.301029995663981, 0.477121254719662, 0.602059991327962,
0.698970004336019, 0.778151250383644, 0.845098040014257,
0.903089986991944, 0.954242509439325, 1 };
if ( this.IsDate ) // date scale
{
XDate xDate= new XDate( baseVal );
switch ( this.minorUnit )
{
case DateUnit.Year:
default:
xDate.AddYears( (double) iTic * this.minorStep );
break;
case DateUnit.Month:
xDate.AddMonths( (double) iTic * this.minorStep );
break;
case DateUnit.Day:
xDate.AddDays( (double) iTic * this.minorStep );
break;
case DateUnit.Hour:
xDate.AddHours( (double) iTic * this.minorStep );
break;
case DateUnit.Minute:
xDate.AddMinutes( (double) iTic * this.minorStep );
break;
case DateUnit.Second:
xDate.AddSeconds( (double) iTic * this.minorStep );
break;
}
return xDate.XLDate;
}
else if ( this.IsLog ) // log scale
{
return baseVal + Math.Floor( (double) iTic / 9.0 ) + dLogVal[ ( iTic + 9 ) % 9 ];
}
else // regular linear scale
{
return baseVal + (double) this.minorStep * (double) iTic;
}
}
/// <summary>
/// Determine the value for any minor tic.
/// </summary>
/// <remarks>
/// This method properly accounts for <see cref="Scale.IsLog"/>, <see cref="Scale.IsText"/>,
/// and other axis format settings.
/// </remarks>
/// <param name="baseVal">
/// The value of the first major tic (floating point double). This tic value is the base
/// reference for all tics (including minor ones).
/// </param>
/// <param name="iTic">
/// The major tic number (0 = first major tic). For log scales, this is the actual power of 10.
/// </param>
/// <returns>
/// The specified minor tic value (floating point double).
/// </returns>
internal override double CalcMinorTicValue(double baseVal, int iTic)
{
XDate xDate = new XDate(baseVal);
switch (_minorUnit) {
case DateUnit.Year:
default:
xDate.AddYears((double) iTic*_minorStep);
break;
case DateUnit.Month:
xDate.AddMonths((double) iTic*_minorStep);
break;
case DateUnit.Day:
xDate.AddDays((double) iTic*_minorStep);
break;
case DateUnit.Hour:
xDate.AddHours((double) iTic*_minorStep);
break;
case DateUnit.Minute:
xDate.AddMinutes((double) iTic*_minorStep);
break;
case DateUnit.Second:
xDate.AddSeconds((double) iTic*_minorStep);
break;
}
return xDate.XLDate;
}
/// <summary>
/// Determine the value for any major tic.
/// </summary>
/// <remarks>
/// This method properly accounts for <see cref="IsLog"/>, <see cref="IsText"/>,
/// and other axis format settings.
/// </remarks>
/// <param name="baseVal">
/// The value of the first major tic (floating point double)
/// </param>
/// <param name="tic">
/// The major tic number (0 = first major tic). For log scales, this is the actual power of 10.
/// </param>
/// <returns>
/// The specified major tic value (floating point double).
/// </returns>
private double CalcMajorTicValue( double baseVal, double tic )
{
if ( this.IsDate ) // date scale
{
XDate xDate = new XDate( baseVal );
switch ( this.majorUnit )
{
case DateUnit.Year:
default:
xDate.AddYears( tic * this.step );
break;
case DateUnit.Month:
xDate.AddMonths( tic * this.step );
break;
case DateUnit.Day:
xDate.AddDays( tic * this.step );
break;
case DateUnit.Hour:
xDate.AddHours( tic * this.step );
break;
case DateUnit.Minute:
xDate.AddMinutes( tic * this.step );
break;
case DateUnit.Second:
xDate.AddSeconds( tic * this.step );
break;
}
return xDate.XLDate;
}
else if ( this.IsLog ) // log scale
{
return baseVal + (double) tic;
}
else // regular linear scale
{
return baseVal + (double) this.step * tic;
}
}