drawLineRelative()

drawLineRelative()
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drawLineRelative( x1, y1, x2, y2, style, thickness, color, tagID )

The drawLineRelative function allows you to draw line objects at any location on your chart. Any line object created with drawlineRelative will 'stick' to the location where it was originally anchored. So, a line object originally created at a bar index of -10 will be at a bar index of -20 after 10 new bars come in.

Parameters

x1	the starting bar index for the line
y1	the starting series value for the line
x2	the ending bar index for the line
y2	the ending series value for the line
style	see Pen Styles below
thickness	integer value assigning line thickness
color	color to use when drawing the line
tagID	a unique identifier for this line object or null

Pen Styles

PS_SOLID	draw a solid line
PS_DOT	draw a dotted line
PS_DASH	draw a dashed line
PS_DASHDOT	draw a dash-dot line
PS_DASHDOTDOT	draw a dash-dot-dot line

Usage

   //draw a line from the high 20 bars ago to the high 5 bars ago. draw it as a solid 
   //line with a thickness of 2 and a color of teal. assign a tagID of 105 so we can  
   //identify it later if we need to remove it. 
   drawLineRelative( -20, high(-20), -5, high(-5), PS_SOLID, 2, Color.teal, 105 );