PictureText-class: Class "PictureText"

In grImport: Importing Vector Graphics

Class "PictureText"

Description

A description of a piece of text to draw, at a particular location and a particular size (and it might be part of a larger picture).

Slots

string:

Object of class "character"

x:

Object of class "numeric"

y:

Object of class "numeric"

w:

Object of class "numeric"

angle:

Object of class "numeric"

rgb:

Object of class "character" that specifies the fill colour for the polygon.

lwd:

Object of class "numeric" that specifies the line width of the polygon (only used if the character outline is stroked).

Extends

Class "PictureOp", directly.

Methods

grobify

signature(object = "PictureText"): convert to a grid grob (for one-off drawing). In addition to a use.gc argument, there is a fillText argument to specify whether to stroke or fill text paths. Filling text paths is not necessarily a good idea because some characters have holes (e.g., the letter ‘o’). The bgText argument can be used to specify a colour to use to fill these holes; this argument can actually be a named vector of colours so that, e.g., the hole in an ‘o’ is filled white, but the dot on an ‘i’ is filled black. Finally, there is a sizeByWidth argument which controls whether text is sized based on the traced width or based on the traced height of the original text.

symbolize

signature(object = "PictureText"): convert to a grid grob (for drawing as a data symbol). Currently draws nothing.

drawPath

signature(object = "PictureText"): draws a traced piece of text as part of the current plot.

Author(s)

Paul Murrell

See Also

Picture-class, PictureChar-class, and grid.picture, grid.symbols.

grImport documentation built on March 31, 2023, 6:57 p.m.