Widget:

• From the "Custom Lines" menu select the "Pattern" submenu. Then select one of: "Both", "Pos", "Neg" or "Default". If you did not select Default you continue on and select a pattern (see Custom Lines).

• LINEPATTERN = type,type

• type: at least one type, and possibly two, may be entered. The first type specifies the line pattern used for contour lines whose value > 0, and the second type specifies the line pattern used for contour lines whose value < 0. If only one type is specified, that pattern is used for all contour lines. valid choices for type are :
  • SOLID - a solid line pattern will be used.
  • DASH - a dashed line pattern will be used.
  • DOT - a dotted line pattern will be used.
  • DASHDOT - a dash-dot line pattern will be used.
  • DASHDOTDOT - a dash-dot-dot line pattern will be used.
  • LONGDASHSHORT - a long-short dash line pattern will be used.
  • LONGDASH - a long dashed line pattern will be used.

• LINEPATTERN = DOT,DASHDOT
  produces a plot where the contour lines <= 0 are dotted and the contour lines > 0 are dash-dotted.

• The default is LINEPATTERN = DOT;SOLID (contour lines whose value <= 0 are drawn with dotted lines, and contour lines whose value > 0 are drawn with solid lines.
• This option remains in effect until changed.
• Solid lines are drawn fastest.