*BeginDatumLine()
Indicates the beginning of a datum line block.
Syntax
*BeginDatumLine (h/v, "datum line", on/off)
Application
HyperGraph
Inputs
- h
 - Specifies a horizontal datum line.
 - v
 - Specifies a vertical datum line.
 - "datum line"
 - The name of the datum line defined by the user.
 - on
 - The datum line is displayed.
 - off
 - The datum line is not displayed.
 
Context
*BeginPlot()
Example
*BeginDatumLine(h, "Minimum", on)
    *Label("{min(c1.y)}")
    *Position("min(c1.y)")
    *AxisIndex(2)
    *LabelLocation(4)
    *Style(2)
    *Thickness(1)
    *Color(5)
    *LabelFont("Arial", 1, 1, 18)
*EndDatumLine()
      Comments
Every *BeginDatumLine() statement requires a closing *EndDatumLine() statement.