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oscarperpinan/mapsWithR.R

Created March 30, 2015 07:33
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mapsWithR.R
library(sp)
## Grabar tabla excel en formato CSV usando ; como separador
## Leemos saltando dos primeras líneas
pts <- read.csv2('/tmp/listado-longitud-latitud-municipios-espana.csv', skip = 2)
## Transformamos a SPDF usando columnas de longitud-latitud como coordenadas
munPts <- SpatialPointsDataFrame(pts[, c(5, 4)], pts[,-c(4, 5)],
proj4string = CRS('+proj=longlat +datum=WGS84'))
## Pintamos el resultado para comprobar
spplot(munPts["Altitud"])
## Ahora se puede añadir a otra capa "trellis" existente
p + layer(sp.points(munPts))
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