This class is for displaying typographic rules in Tioga documents. The content of a node with Artwork property value of Rule is interpreted to determine the rule length and thickness. (This interpretation is identical to that of the obsolete TSetter ArtworkClass = Rule). The default length of the rule is the width of the column from the current indent. Some thicknesses are predefined:
- (minus sign) gives a 0.4 point rule (a thin line),
— (em dash) also gives a 0.4 point rule,
= (equals sign) gives a 1.0 point rule (a thicker line),
~ (tilde) gives a rule 80% of the font height,
# (number sign) gives a rule 80% of the font height. Two keyword parameters may also be given,
thickness: <value> <unit>, or
length: <value> <unit>, where <value> is a real number and <unit> may be one of
in for inches,
pt for points,
cm for centimeters,
mm for millimeters, and
bp for big points. The rule below has a 2 pt thickness and length 2 inches:
thickness: 2 pt length: 2 in