geometry_rotate: Rotate a geometry about a pointclockwise, by a specified...

In rstudio/gggeom: Graphical Geometry

Description

Rotate a geometry about a point clockwise, by a specified angle.

Usage

geometry_rotate(geom, angle = NULL, x = 0, y = 0)

Arguments

geom	A geometry data frame.
angle	The angle by which to rotate, clockwise.
x,y	The coordinates of the center of rotation.

Examples

scatter_ex %>% plot()
# Rotate 5 degrees about the origin
scatter_ex %>% plot() %>%
  geometry_rotate(5) %>% plot(add = TRUE, col = "red")
# Rotate 5 degrees about the smallest point
scatter_ex %>% plot() %>%
  geometry_rotate(5, x = 9, y = 12) %>% plot(add = TRUE, col = "red")

# More extreme rotations
scatter_ex %>% plot(xlim = c(-35, 35), ylim = c(-44, 44)) %>%
   geometry_rotate(90) %>% plot(add = TRUE, col = "red")
scatter_ex %>% geometry_rotate(75, x = 20, y = 20) %>% plot()

# To rotate bars, you need to convert to polygons with pointificate
bar_ex %>% unique() %>% plot()
bar_ex %>% unique() %>% geometry_pointificate() %>%
  geometry_rotate(45, 6, 0.5) %>% plot()

rstudio/gggeom documentation built on May 28, 2019, 4:35 a.m.