reverse Function (GPL)

Syntax

reverse()

Description

When used in conjunction with a scale, this function reverses the scale. For categorical scales, this function can be used in conjunction with an explicit sorting function.

When used in conjunction with a polar coordinate system, this function reverses the direction of the coordinate system. Thus, it would draw pie slices in a counterclockwise direction.

Examples

Figure 1. Example: Using reverse alpha-numeric sorting

SCALE: cat(dim(1), sort.natural(), reverse())

Figure 2. Example: Reversing a linear scale

SCALE: linear(dim(2), reverse())

Figure 3. Example: Reversing the direction of an aesthetic scale

SCALE: linear(aesthetic(aesthetic.color.brightness), reverse())

Figure 4. Example: Reversing the direction of a coordinate system

COORD: polar.theta(reverse())