tmap (version 1.0)

animation_tmap: Create animations

Description

Create a gif or mpeg animation from a tmap plot. The free tool ImageMagick is required.

Usage

animation_tmap(expr, width = 1000, height = 1000, delay = 40,
  filename = "animation.gif")

Arguments

expr

R expression to create series of tmap plots. In order to create a series of tmap plots, which will be the frames of the animation, it is important to set nrow and ncol in tm_facets, for otherwise a small

width

width of the animation file (in pixels)

height

height of the animation file (in pixels)

delay

delay time between images (in 1/100th of a second)

filename

filename of the video (should be a .gif or .mpg file)

Examples

data(Europe)

animation_tmap({
  tm_shape(Europe) +
    tm_fill("yellow") +
	   tm_borders() +
    tm_facets(by = "name", nrow=1,ncol=1) +
    tm_layout(scale=2)
}, width=1200, height=800, delay=100, filename="European countries.gif")

data(World)
data(metro)
animation_tmap({
  tm_shape(World) +
    tm_polygons() +
  tm_shape(metro) +
    tm_bubbles(paste0("pop", seq(1970, 2030, by=10)), border.col = "black", border.alpha = .5) +
    tm_facets(free.scales.bubble.size = FALSE, nrow=1,ncol=1) +
  tm_layout_World(scale=2, outer.margins=0,asp=0)
}, width=1200, height=550, delay=100, filename="World population.gif")