valid.just: Validate a Justification

Description Usage Arguments Details Value Author(s)

Description

Utility functions for determining whether a justification specification is valid and for resolving a single justification value from a combination of character and numeric values.

Usage

1
2
3
valid.just(just)
resolveHJust(just, hjust) 
resolveVJust(just, vjust) 

Arguments

just

A justification either as a character value, e.g., "left", or as a numeric value, e.g., 0.

hjust

A numeric horizontal justification

vjust

A numeric vertical justification

Details

These functions may be useful within a validDetails method when writing a new grob class.

Value

A numeric representation of the justification (e.g., "left" becomes 0, "right" becomes 1, etc, ...). An error is given if the justification is not valid.

Author(s)

Paul Murrell