show the map using mapview include multibyte character in data.frame - r

Question

I want to show the data using mapview package.
but include multibyte character, sometime cannot show the map.
What would be the best thing to show the map?
library(mapview)
data(atlStorms2005)
test1 <- test2 <- atlStorms2005
test1#data$test <- as.factor(c("日本語", "てすと"))
test2#data$test <- as.factor(c("日本語", "五十嵐"))
mapview(test1) # can show the map
mapview(test2) # cannot show
re.data.frame <- function(data, encoding = "UTF-8", fileEncoding="UTF-8"){
write.csv(data, file("tmp.csv", encoding = encoding), row.names = F, fileEncoding=fileEncoding)
tmp <- readr::read_csv("tmp.csv", col_types = cols())
return(tmp)
}
test2#data <- re.data.frame(test2#data)
mapview(test2) # can show
but,the popup in test colum character is corrupted text.
data is correct.
head(test2#data)
# A tibble: 6 × 4
Name MaxWind MinPress test
<chr> <int> <int> <chr>
1 ALPHA 45 998 日本語
2 ARLENE 60 989 五十嵐
3 BRET 35 1002 日本語
4 CINDY 65 991 五十嵐
5 DELTA 60 980 日本語
6 DENNIS 130 930 五十嵐

Answer 1

As of commit bc2c57f, this should have been fixed. Until the next CRAN release of mapview, simply use the development version (devtools::install_github("environmentalinformatics-marburg/mapview", ref = "develop")) to solve this issue.
In brief, this behavior was related to our Rcpp routines which run under the hood in order to ensure a computationally efficient creation of popup tables. Here, the user's native encoding was used instead of UTF-8 to create JSON output files, resulting in corrupted text output on some machines where UTF-8 was not the default.