EasyLanguage Object Reference

Ellipse Class

Draws an ellipse of a specified size on a chart at a specified location. Appearance may altered using appropriate properties. An ellipse is a non-analytical drawing tool used to highlight specific portions of a chart.

Note that the points that define an ellipse are relative to left-side and right-side corners of an imaginary rectangle that bounds the ellipse.

The following code snippet shows how to add an ellipse to a chart at specific X-Y coordinates using XYPoint. Alternatively, the dimensions could be given using BNPoint or DTPoint.

myEllipse = Ellipse.create(XYPoint.Create(150,50),XYPoint.Create(250,100));
DrawingObjects.Add(myEllipse);

Alternatively, you can use BNPoint to draw an ellispse between specified bar numbers or DTPoint to draw between date-time positions, so that the ellipse will scroll with the bars:

If (Currentbar = 70) then		
Begin

   {draw an ellipse from the current bar to the 40th bar back}
   MyBNEllipse = Ellipse.Create(BNPoint.Create(CurrentBar + MaxBarsBack, Highest(High, 40)), BNPoint.Create(CurrentBar - 40 + MaxBarsBack, Lowest(Low, 40)));
   DrawingObjects.Add(MyBNEllipse);
End;

If (LastBarOnChart = True) then	
Begin
    {draw an ellipse from the last bar on the chart to the 50th bar ago}
    MyDTEllipse = Ellipse.Create(DTPoint.Create(BarDateTime[0], Highest(High, 50)), DTPoint.Create(BarDateTime[49], Lowest(Low, 50)));
    DrawingObjects.Add(MyDTEllipse);
End;

Properties allow custom formatting (width, style, color, etc.). In this example, the Color property (which describes line color of the rectangle, not the fill color) is inherited from DrawingObject .

myEllipse.Color = elsystem.drawing.Color.Cyan;
myEllipse.FillPattern = FillPattern.pattern1;

To use this in an analysis technique, be sure that it is setup as described in About Drawing Objects.

Namespace: elsystem.drawingobjects

Properties

   Additional properties, methods, and events are described in the classes listed under Inheritance Hierarchy (see below).

	Name	Type	Description
	EndPoint	object	Gets the Ellipse object end point. See DOPoint.
	FillColor	object	Gets or sets the fill color property. See Color.
	FillPattern	enum	Gets or sets the fill pattern property using a FillPattern enumerator.
	StartPoint	object	Gets the Ellipse object start point. See DOPoint.
	Style	enum	Gets or sets the Ellipse border style using a StyleType enumerator.
	Weight	enum	Gets or sets the Ellipse border weight using a Weight enumerator.

Methods

	Name	Description
	Create(DTPoint, DTPoint)	Initializes a new instance of the Ellipse class. The first parameter is a DTPoint object representing the starting point of a hidden rectangle that contains the ellipse; the second parameter is a DTPoint object representing the end point.
	Create(DTPoint, DTPoint, int)	Initializes a new instance of the Ellipse class. The first parameter is a DTPoint object representing the starting point of a hidden rectangle that contains the ellipse; the second parameter is a DTPoint object representing the end point, and the third parameter is an integer representing the data number (data1 - 50).
	Create(BNPoint, BNPoint)	Initializes a new instance of the Ellipse class. The first parameter is a BNPoint object representing the starting point of a hidden rectangle that contains the ellipse; the second parameter is a BNPoint object representing the end point.
	Create(BNPoint, BNPoint, int)	Initializes a new instance of the Ellipse class. The first parameter is a BNPoint object representing the starting point of a hidden rectangle that contains the ellipse; the second parameter is a BNPoint object representing the end point, and the third parameter is an integer representing the data number (data1 - 50).
	Create(XYPoint, XYPoint)	Initializes a new instance of the Ellipse class. The first parameter is a XYPoint object representing the starting point of a rectangle that contains the ellipse; the second parameter is a XYPoint object representing the end point.
	Create(XYPoint, XYPoint, int)	Initializes a new instance of the Ellipse class. The first parameter is a XYPoint object representing the starting point of a hidden rectangle that contains the ellipse; the second parameter is a XYPoint object representing the end point, and the third parameter is an integer representing the data number (data1 - 50).
	SetEndPoint(DTPoint)	Sets the Ellipse end point using a DTPoint object.
	SetEndPoint(BNPoint)	Sets the Ellipse end point using a BNPoint object.
	SetEndPoint(XYPoint)	Sets the Ellipse end point using a XYPoint object.
	SetStartPoint(DTPoint)	Sets the Ellipse start point using a DTPoint object.
	SetStartPoint(BNPoint)	Sets the Ellipse start point using a BNPoint object.
	SetStartPoint(XYPoint)	Sets the Ellipse start point using a XYPoint object.