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add_location.R
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add_location.R
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add_location_UI <- function(id, settings=NULL){
ns <- NS(id)
list(
div(class="flex-confirm-container",
div(class="flex-container",
div(class="flex-sidebar",
numericInput(ns("speedLimit"), "Geschwindigkeitsbegrenzung", value = 30, min = 10, max=100, step = 10),
textAreaInput(ns("notes"), "Notizen zur Messstelle", placeholder = "Schreibe uns wenn es an dieser Messstelle etwas besonderes gibt", rows = 6, resize="vertical"),
checkboxInput(ns("reverse"), "Fahrtrichtung umkehren", value=FALSE),
p("Standort: ", textOutput(ns("selectedLocation"), inline = T)),
p(textOutput(ns("selected_street"), inline=T)),
p(textOutput(ns("street_specifics"), inline=T)),
uiOutput(ns("direction")),
),
div(class="flex-main-panel",
maplibreOutput(ns("map"), height = "100%")
)
),
div(class="flex-confirm",
actionButton(ns("save_location"), "Standort speichern", class="btn-primary btn-lg btn-block mt-10 mb-10")
)
)
)
}
add_location_server <- function(id, userID){
moduleServer(id, function(input, output, session){
ns = session$ns
output$map <- renderMaplibre({
# other map styles: colorful, graybeard
# https://github.com/versatiles-org/versatiles-style/releases/tag/v4.4.1
maplibre("./neutrino.de.json",
center=c(14.324609,51.759617), zoom=12, maxzoom=19, minzoom=12,
) %>%
add_navigation_control() %>%
add_fullscreen_control() %>%
add_geocoder_control(collapsed = T) %>%
add_line_layer(id = "streets", source = splitted_streets, before_id = "label-street-pedestrian", line_opacity = 1, line_width = interpolate(property = "zoom", type = list("exponential", 2), values = c(12,19), stops = c(1,60)), line_color = match_expr(
"maxspeed",
values = c("30", "50", "60", "100"),
stops = c("#1f78b4", "#33a02c","#e31a1c", "#ff7f00"),
default = "gray"
)
#popup = c("name", "maxspeed"),
#tooltip = "name", hover_options = list(line_width=4)
) %>%
add_legend(position="bottom-left", legend_title = "max speed", type="categorical",
values = c("30", "50", "60", "100"),
colors = c("#1f78b4", "#33a02c", "#e31a1c", "#ff7f00")) %>%
add_layers_control(layers=list("streets", "Luftbild"), collapsible = TRUE)
})
observeEvent(input$map_zoom, once = T, {
maplibre_proxy("map", session) %>%
set_layout_property("streets", "line-join", "round") %>%
set_layout_property("streets", "line-cap", "round")
})
sensor_location <- reactiveVal()
sensor_direction <- reactiveVal()
nearest_street <- reactiveVal()
observe({
click <- req(input$map_click)
location <- st_as_sf(data.frame(lon=click$lng, lat=click$lat), coords=c("lon", "lat"), crs = 4326)
nearest_street <- splitted_streets[st_nearest_feature(location, splitted_streets ),] %>%
mutate(icon="music")
if(input$reverse){
if(isTruthy(nearest_street$oneway)){
showNotification("Die Fahrtrichtung der Einbahnstraße kann nicht umgekehrt werden.", type = "error")
updateCheckboxInput(session, "reverse", value = F)
}else{
nearest_street <- nearest_street %>% st_reverse()
}
}
nearest_street(nearest_street) # save in reactiveVal
nearest_street_points <- st_cast(nearest_street, "POINT")
nearest_points <-st_nearest_points(location, nearest_street) %>% st_as_sf
snap_point <- st_cast(nearest_points, "POINT")[2,]
nearest_node_index <- st_nearest_feature(snap_point, nearest_street_points)
if(nearest_node_index == 1 || nearest_node_index < nrow(nearest_street_points) && st_distance(nearest_street_points[nearest_node_index+1,], nearest_street_points[nearest_node_index,]) >
st_distance(nearest_street_points[nearest_node_index+1,], snap_point)){
nearest_line_segment <- nearest_street_points[nearest_node_index+(0:1),]
}else{
nearest_line_segment <- nearest_street_points[nearest_node_index-(1:0),]
}
street_azimuth <- as.numeric(st_geod_azimuth(nearest_street_points[nearest_line_segment,]))/2/pi*360
map <- maplibre_proxy("map", session) %>%
set_paint_property(layer="label-street-residential", name="text-color", value="#000000") %>%
clear_markers() %>%
add_markers(marker_id = "sensor_location", data=c(click$lng, click$lat), draggable=F) %>%
clear_layer("nearest_street") %>%
add_line_layer("nearest_street", source = nearest_street, line_color = "yellow", line_width = interpolate(property = "zoom", type = list("exponential", 2), values = c(12,19), stops = c(1,60))) %>%
clear_layer("nearest_points") %>%
add_line_layer("nearest_points", source = nearest_points, line_color = "#ccc", line_width = interpolate(property = "zoom", type = list("exponential", 2), values = c(12,19), stops = c(.2,20))) %>%
clear_layer("nearest_street_symbol") %>%
add_symbol_layer(
id = "nearest_street_symbol",
source = snap_point,
#text_field = get_column("name"),
text_justify = "left",
icon_image = "marking-arrow",
icon_rotate = street_azimuth,
icon_pitch_alignment = "map",
icon_rotation_alignment = "map",
icon_size = interpolate(property = "zoom", type = list("exponential", 2), values = c(12,19), stops = c(.16,10)),
#icon_rotation_alignment = 90,
symbol_spacing = 100,
#icon_padding = 1,
symbol_placement = "point",
text_font = list("noto_sans_regular"),
text_keep_upright = FALSE,
icon_allow_overlap = TRUE,
tooltip = "icon",
) %>%
set_layout_property("nearest_street", "line-join", "round") %>%
set_layout_property("nearest_street", "line-cap", "round") %>%
set_layout_property("nearest_points", "line-join", "round") %>%
set_layout_property("nearest_points", "line-cap", "round")
if(!is.na(nearest_street$maxspeed)){
updateNumericInput(session, "speedLimit", value = nearest_street$maxspeed)
}
sensor_direction(round(street_azimuth%%360))
sensor_location(location)
})
output$selectedLocation <- renderText({
if(isTruthy(sensor_location())){
location <- sensor_location()
message(str(location))
paste(paste(round(st_coordinates(location),5), collapse = ", "))
}else{
"Bitte auf Karte auswählen"
}
})
output$selected_street <- renderText({
req(isTruthy(nearest_street()$name))
if(is.na(nearest_street()$`name:hsb`)){
str_glue("Strasse: {nearest_street()$name}")
}else{
str_glue("Strasse: {nearest_street()$name} ({nearest_street()$`name:hsb`})")
}
})
output$street_specifics <- renderText({
req(isTruthy(nearest_street()))
if(!is.na(nearest_street()$lanes)){
if(nearest_street()$lanes>1){
lanes <- paste(nearest_street()$lanes, "Fahrspuren")
}else{
lanes <- "einspurig"
}
}else{
lanes <- NULL
}
if(!is.na(nearest_street()$oneway)){
oneway <- "Einbahnstraße"
}else{
oneway <- NULL
}
if(!is.na(nearest_street()$maxspeed)){
maxspeed <- paste(nearest_street()$maxspeed, "km/h")
}else{
maxspeed <- NULL
}
paste(c(lanes, oneway, maxspeed), collapse=", ")
})
output$direction <- renderUI({
req(sensor_direction())
p("Fahrtichtung: ", azimuth_to_direction(sensor_direction()), icon("arrow-up", style = str_glue("transform: rotate({sensor_direction()}deg);")), str_glue(" ({sensor_direction()}° von Nord)"))
})
# observeEvent(input$map_marker_sensor_location,{
# marker <- input$map_marker_sensor_location
# sensor_location(marker[c("lng", "lat")])
# })
observeEvent(input$save_location, {
nearest_street_geom = unlist(lapply(sf::st_as_binary(sf::st_geometry(nearest_street())), function(x) {
paste(x, collapse = "")
}))
location_geom = unlist(lapply(sf::st_as_binary(sf::st_geometry(sensor_location())), function(x) {
paste(x, collapse = "")
}))
query <- str_glue(.na="DEFAULT",
"INSERT INTO sensor_locations (username, street_name, \"street_name:hsb\", user_speedlimit, osm_speedlimit, oneway, lanes, direction, notes, location_geom, street_geom) VALUES (
'{userID()}',
'{nearest_street()$name}',
'{nearest_street()$`name:hsb`}',
{input$speedLimit},
{as.integer(nearest_street()$maxspeed)},
{as.logical(nearest_street()$oneway)},
{as.integer(nearest_street()$lanes)},
{sensor_direction()},
'{input$notes}',
ST_SetSRID('{location_geom}'::geometry,4326),
ST_SetSRID('{nearest_street_geom}'::geometry,4326)
) RETURNING id;"
)
cat(query)
id = dbGetQuery(content, query)$id
showNotification(str_glue("Standort wurde gespeichert mit id {id}"))
})
})
}