Created
September 16, 2021 01:24
-
-
Save jsta/40c5ea20f2ceb475d4c9bd441125449e to your computer and use it in GitHub Desktop.
Automated zooming map with ggplot
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
library(ggplot2) | |
library(gganimate) | |
library(sf) | |
lg_extent <- c(xmin = -97.9036, ymin = 34.6176, xmax = -66.9989, ymax = 49.4194) | |
lg_extent <- sf::st_as_sfc(sf::st_bbox(lg_extent), crs = 4326) | |
earth <- sf::st_as_sf( | |
rnaturalearth::ne_states(country = "United States of America")) | |
views <- data.frame(rbind( | |
st_bbox(earth[earth$name_en == "Texas", ]), | |
st_bbox(earth[earth$name_en == "Florida", ]), | |
st_bbox(lg_extent), | |
st_bbox(earth) | |
)) | |
p <- ggplot() + | |
geom_sf(data = earth, fill = "white") + | |
theme(panel.background = element_rect("lightblue")) + | |
view_zoom_manual(1, 1, | |
xmin = views$xmin, xmax = views$xmax, | |
ymin = views$ymin, ymax = views$ymax, | |
wrap = TRUE) | |
animate(p, 100, 10) | |
anim_save("test.gif") |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment