I am trying to plot my coordinates using R. I have tried already to follow different post (R: Plot grouped coordinates on world map ; Plotting coordinates of multiple points at google map in R) but I am not having much success with my data.

I am trying to achieve a flat map of the world with my gps coordinate as colored dots (each area a specific color):

area lat long Agullhas -38,31 40,96 Polar -57,59 76,51 Tasmanian -39,47 108,93 library(RgoogleMaps) lat <- c(-38.31, -35.50) #define our map's ylim lon <- c(40.96,37.50) #define our map's xlim center = c(mean(lat), mean(lon)) #tell what point to center on zoom <- 2 #zoom: 1 = furthest out (entire globe), larger numbers = closer in terrmap <- GetMap(center=center, zoom=zoom, maptype= "satallite", destfile = "satallite.png")

problem that now I don't know how to add my points and I will like one color for each region.

Could anyone help me going forward with it?

the other option I have tried is :

library(maps) library(mapdata) library(maptools) map(database= "world", ylim=c(-38.31, -35.5), xlim=c(40.96, 37.5), col="grey80", fill=TRUE, projection="gilbert", orientation= c(90,0,225)) lon <- c(-38.31, -35.5) #fake longitude vector lat <- c(40.96, 37.5) #fake latitude vector coord <- mapproject(lon, lat, proj="gilbert", orientation=c(90, 0, 225)) #convert points to projected lat/long points(coord, pch=20, cex=1.2, col="red") #plot converted points

but the coordinates ends in a wrong position and I am not sure why

Hope someone can help