120 lines
3.0 KiB
R
120 lines
3.0 KiB
R
library(rjson)
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library(shiny)
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library(bslib)
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library(leaflet)
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library(sf)
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crime_json <- fromJSON(file="C:\\Users\\milli\\Documents\\Datenbereinigung\\data.json")
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geo_bezirke <- st_read("C:\\Users\\milli\\Documents\\Datenbereinigung\\geobezirke-parsed.json")
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geo_bezirke <- st_transform(geo_bezirke, crs = 4326)
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geo_stadtteile <- st_read("C:\\Users\\milli\\Documents\\Datenbereinigung\\geostadtteile-parsed.json")
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geo_stadtteile <- st_transform(geo_stadtteile, crs = 4326)
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bezirke <- names(crime_json)
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ui <- page_fillable(
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layout_columns(
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card(
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radioButtons(
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inputId = "rd_maptype",
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label = "Kartentyp",
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choices = c("Bezirke", "Stadtteile"),
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selected = "Bezirke"
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),
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selectInput(
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inputId = "drp_bezirk",
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label = "Bezirk",
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choices = bezirke),
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selectInput(
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inputId = "drp_stadtteil",
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label = "Stadtteil",
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choices = NULL,
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)
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),
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leafletOutput("hhmap"),
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card("Card rechts"),
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col_widths = c(3, 6, 3)
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)
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)
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server <- function(input, output, session){
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observeEvent(input$drp_bezirk, {
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sel_bezirk <- input$drp_bezirk
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if (sel_bezirk != "") {
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# Neue Auswahlmöglichkeiten bestimmen
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sel_stadtteile <- names(crime_json[[sel_bezirk]])
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# Zweites SelectInput-Feld aktualisieren
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updateSelectInput(
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session,
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inputId = "drp_stadtteil",
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choices = sel_stadtteile,
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selected = sel_stadtteile[1] # Wählt den ersten Eintrag vor
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)
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}
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})
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observeEvent(input$rd_maptype, {
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maptype <- input$rd_maptype
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mapproxy <- leafletProxy("hhmap")
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if (maptype == "Bezirke"){
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hideGroup(mapproxy, "layer_stadtteile")
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showGroup(mapproxy, "layer_bezirke")
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}
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else {
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hideGroup(mapproxy, "layer_bezirke")
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showGroup(mapproxy, "layer_stadtteile")
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}
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})
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output$hhmap <- renderLeaflet({
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leaflet() %>%
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addProviderTiles(providers$CartoDB.Positron) %>%
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addPolygons(
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data = geo_bezirke,
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group = "layer_bezirke",
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color = "#7bb5ab",
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fillColor = "#bdf0e7",
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weight = 1,
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fillOpacity = 0.4, # Polygon fill transparency
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highlightOptions = highlightOptions(
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color = "#103b57",
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weight = 4,
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bringToFront = TRUE
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),
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) %>%
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addPolygons(
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data = geo_stadtteile,
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group = "layer_stadtteile",
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color = "#7bb5ab",
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fillColor = "#bdf0e7",
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options = pathOptions(pane = "overlayPane"), # Use a leaflet option to ensure it's hidden
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weight = 1,
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fillOpacity = 0.4, # Polygon fill transparency
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highlightOptions = highlightOptions(
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color = "#103b57",
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weight = 4,
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bringToFront = TRUE
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),
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) %>%
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setView(
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lng = 9.98716634776887,
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lat = 53.5488439196432,
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zoom = 11
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)
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})
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}
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options(shiny.host = '0.0.0.0')
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options(shiny.port = 8888)
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shinyApp(ui = ui, server = server)
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