RGEOTALLER

R como sistema de información geográfica

Importación de paquetes

library(pacman)
p_load("readr", "tidyverse", "DT", "prettydoc", "mapview", "rgdal", "raster", "sp")

Este es un conjunto de ejercicios realizados en el el taller de RUBISCO, 12/12/20 Es importante recalcar el uso de datasets que son:

• Mapas de manzanas:

1. AGEBS
2. Fórmula de contención urbana:

\[ A + B \]

• Código básico de R:

setwd("~/Google Drive File Stream/Mi unidad/UTILERIA/RGEOTALLER")
a <- c (1,2,3)
hist(a)

summary(a)

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##     1.0     1.5     2.0     2.0     2.5     3.0

Introducción al uso de datos geoespaciales

Urbanismo sistémico

Uso de datos ráster

Representación de un modelo digital de elevación de forma interactiva

pal = mapviewPalette("mapviewTopoColors")
demob <- raster("dem.tif", package = "mapview")
obdem <- stack(demob)
mapview(obdem[[1]], col.regions=pal(100), at=seq(-0.2,1,0.2), legend=TRUE)

## Warning in rasterCheckSize(x, maxpixels = maxpixels): maximum number of pixels for Raster* viewing is 5e+05 ; 
## the supplied Raster* has 3327015 
##  ... decreasing Raster* resolution to 5e+05 pixels
##  to view full resolution set 'maxpixels =  3327015 '

## Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO"): Discarded
## ellps WGS 84 in CRS definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0
## +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs

## Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO"): Discarded
## datum WGS_1984 in CRS definition

## Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO"): Discarded
## ellps WGS 84 in CRS definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0
## +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs

## Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO"): Discarded
## datum WGS_1984 in CRS definition

## Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO"): Discarded
## ellps WGS 84 in CRS definition: +proj=merc +a=6378137 +b=6378137 +lat_ts=0
## +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs

## Warning in showSRID(uprojargs, format = "PROJ", multiline = "NO"): Discarded
## datum WGS_1984 in CRS definition