Road data (http://nlftp.mlit.go.jp/ksj/gml/datalist/KsjTmplt-N10.html)
I want to use the mapview package to display it, but I can't.
Some data can be displayed, but what is the cause?
data<- Road data
pj2000<-CRS("+init=epsg:4612")
load<-maptools::readShapeLines (data, proj4string=pj2000)
mapview::mapview(road)
The following example (SpatialLinesDataFrame class) can be displayed.
library(mapview)
mapview (atlStorms 2005)
Thank you for your cooperation.
Data is a simple example or kokudosuuchi package (http://notchained.hatenablog.com/entry/2016/11/08/220222)
I wish I could use , but I couldn't, so
I will show you the URL of the data acquisition destination.
Some Japanese words in data.frame seem to be causing the error.
data (atlStorms 2005)
test1<-test2<-atlStorms 2005
test1@data$test<-as.factor(c("Japanese", "Test"))
test2@data$test<-as.factor(c("Japanese", "Igarashi"))
mapview(test1)# Displayed without problems
mapview(test2)# does not appear
Thank you very much for answering my question.
We found that the data frame's character code could not be displayed.
data (atlStorms 2005)
test1<-test2<-atlStorms 2005
test1@data$test<-as.factor(c("Japanese", "Test"))
test2@data$test<-as.factor(c("Japanese", "Igarashi"))
mapview(test1)# Displayed without problems
mapview(test2)# does not appear
You can save and load data frames.
re.data.frame<-function(data, encoding="UTF-8", fileEncoding="UTF-8"){
write.csv(data, file("clipboard", encoding=encoding), row.names=F, fileEncoding=fileEncoding)
fileEncoding=fileEncoding)
tmp<-read_csv("clipboard")
return(tmp)
}
test2@data<-re.data.frame (test2@data)
mapview(test2)# Displayable
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