Animate terra - maps

[Beedmoser]

Hi
I try to animate a map. I have one single spatvector. I can plot multiple maps with facet_wrap (vars(Jahr)) but gganimate throws an error when I try to add transition_time(Jahr): Fehler: arguments have different crs

Then I noticed that this error is thrown by all attempts to gganimate a map using ready made code I downloaded, like

library(tidyverse)
library(rnaturalearth)
library(rnaturalearthdata)
library(gganimate) # also needs transformr

set.seed(1234)

ww <- ne_countries(scale = "medium", returnclass = "sf")

ll <- ww$name %>% length

val <- sample(c("a","b","c","d"), ll, replace=T)
bb <- ne_download(type = "wgs84_bounding_box", category = "physical",
returnclass = "sf")
ww <- ww %>% mutate(value=val)

newdf <- lapply(seq_len(5), function(i) {
new <- ww
new$group <- seq_len(nrow(new))
new$value <- sample(letters[1:4], nrow(new), replace = TRUE)
new$time <- i
new
})
newdf <- do.call(rbind, newdf)

gpl1 <- ggplot(data = newdf) +
geom_sf(aes(fill=value, group = group), col = "black", lwd = 0.3 )+
xlab(NULL) + ylab(NULL) +
ggtitle("World Export of Merchandise", subtitle = "{frame_time}")+
geom_sf(data = bb, col = "grey", fill = "transparent") +
theme(plot.background = element_rect(fill = "white"),
panel.background = element_rect(fill = 'white'),
panel.grid.major = element_line(colour = "grey"),
legend.position="top",
plot.title = element_text(lineheight=.8, size=24, face="bold",
vjust=1),
legend.text = element_text(vjust=.4,lineheight=1,size = 14),
legend.title = element_text(vjust=1,lineheight=1, size=14,
face="bold" )) +
transition_time(time)
ani <- animate(gpl1)

What could be the problem, given R and all packages are up-to-date? Also the Error does not make sense to me. How can I have multiple crs in one spatVector?

[ptr-64]

Hi
This is a known issue. For now try to downgrade transformr to 0.1.3. This can be done by devtools::install_version("transformr", version = "0.1.3") in a fresh session.

[Beedmoser]

Hi That did the trick! Many thanks. Best Beat Beat Moser Bergstrasse 9 8322 Madetswil FON +41 79 257 96 00 Von: ptr-64 ***@***.***> Gesendet: Montag, 22. Januar 2024 20:01 An: thomasp85/gganimate ***@***.***> Cc: Beat Moser ***@***.***>; Author ***@***.***> Betreff: Re: [thomasp85/gganimate] Animate terra - maps (Issue #490) Hi This is a known issue<#479>. For now try to downgrade transformr to 0.1.3. This can be done by devtools::install_version("transformr", version = "0.1.3") in a fresh session. — Reply to this email directly, view it on GitHub<#490 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/A4323VIO4IFIXS37T434U7LYP2ZO5AVCNFSM6AAAAAA74GSWGWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSMBUGYZDCNZWGA>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>

[ptr-64]

If your issue got solved you might consider closing it.