## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  eval = identical(tolower(Sys.getenv("NOT_CRAN")), "true"),
  out.width = "100%"
)

## ----message = FALSE----------------------------------------------------------
# options(java.parameters = "-Xmx2G")
# 
# library(r5r)
# library(sf)
# library(data.table)
# library(ggplot2)

## ----message = FALSE----------------------------------------------------------
# # system.file returns the directory with example data inside the r5r package
# # set data path to directory containing your own data if not running this example
# data_path <- system.file("extdata/poa", package = "r5r")
# 
# r5r_network <- build_network(data_path)

## ----message = FALSE----------------------------------------------------------
# # read all points in the city
# points <- fread(file.path(data_path, "poa_hexgrid.csv"))
# 
# # subset point with the geolocation of the central bus station
# central_bus_stn <- points[291,]
# 
# # isochrone intervals
# time_intervals <- seq(0, 100, 10)
# 
# # routing inputs
# mode <- c("WALK", "TRANSIT")
# max_walk_time <- 30      # in minutes
# max_trip_duration <- 90  # in minutes
# time_window <- 60        # in minutes
# departure_datetime <- as.POSIXct("13-05-2019 14:00:00",
#                                  format = "%d-%m-%Y %H:%M:%S")
# 
# # calculate travel time matrix
# iso1 <- r5r::isochrone(
#   r5r_network,
#   origins = central_bus_stn,
#   mode = mode,
#   polygon_output = TRUE,
#   cutoffs = time_intervals,
#   departure_datetime = departure_datetime,
#   max_walk_time = max_walk_time,
#   max_trip_duration = max_trip_duration,
#   time_window = time_window,
#   progress = FALSE,
#   zoom = 10
#   )
# 

## ----message = FALSE----------------------------------------------------------
# head(iso1)

## ----message = FALSE----------------------------------------------------------
# # extract OSM network
# street_net <- street_network_to_sf(r5r_network)
# main_roads <- subset(street_net$edges, street_class %like% 'PRIMARY|SECONDARY')
# 
# colors <- c('#ffe0a5','#ffcb69','#ffa600','#ff7c43','#f95d6a',
#             '#d45087','#a05195','#665191','#2f4b7c','#003f5c')
# 
# ggplot() +
#   geom_sf(data = iso1, aes(fill=factor(isochrone)), color = NA, alpha = .7) +
#   geom_sf(data = main_roads, color = "gray55", size=0.01, alpha = 0.2) +
#   geom_point(data = central_bus_stn, aes(x=lon, y=lat, color='Central bus\nstation')) +
#   scale_fill_manual(values = rev(colors) ) +
#   scale_color_manual(values=c('Central bus\nstation'='black')) +
#   labs(fill = "Travel time\n(in minutes)", color='') +
#   theme_minimal() +
#   theme(axis.title = element_blank())

## ----message = FALSE----------------------------------------------------------
# # calculate travel time matrix
# iso2 <- r5r::isochrone(
#   r5r_network,
#   origins = central_bus_stn,
#   mode = mode,
#   polygon_output = FALSE,
#   cutoffs = time_intervals,
#   departure_datetime = departure_datetime,
#   max_walk_time = max_walk_time,
#   max_trip_duration = max_trip_duration,
#   time_window = time_window,
#   progress = FALSE
#   )
# 
# head(iso2)
# 

## ----message = FALSE----------------------------------------------------------
# ggplot() +
#   geom_sf(data = iso2, aes(color=factor(isochrone)), alpha = .7) +
#   scale_color_manual(values = rev(colors) ) +
#   geom_point(data = central_bus_stn, aes(x=lon, y=lat), color='black') +
#   labs(color = "Travel time\n(in minutes)", color='sadasd') +
#   theme_minimal() +
#   theme(axis.title = element_blank())

## ----message = FALSE----------------------------------------------------------
# r5r::stop_r5(r5r_network)
# rJava::.jgc(R.gc = TRUE)