Projecting my shapefile data on leaflet map using R

Question

I (on Win7) was trying to get my shapefile data (Here are the data files.) to be displayed using leaflet package. But without any success. I only get the background

Answer 1

Hi you have to change the projection :

library("rgdal")
shapeData <- readOGR(".",'myGIS')
shapeData <- spTransform(shapeData, CRS("+proj=longlat +ellps=GRS80"))
library("leaflet")
leaflet()  %>% addTiles() %>% 
  setView(lng = -106.363590, lat=31.968483,zoom=11) %>% 
  addPolygons(data=shapeData,weight=5,col = 'red') %>% 
  addMarkers(lng = -106.363590,lat=31.968483,popup="Hi there") 

But I can't tell you why this works, i only know a little about geo and proj.