18.2. GKS Primitives   

Polyline Polymarker Fill Area Text

    Polyline:  Draws a sequence of connected line segments.

    Polymarker: Marks a sequence of points with same symbol.

    Fill Area: Displays a specified area.

    Text:      Draws a string of characters.

Associated with these routines are parameters and attributes. Other primitives also affect the displayed image on any particular workstation.