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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| library(sf) | ||
| library(shiny) | ||
| library(leaflet) | ||
| library(leaflet.extras2) | ||
|
|
||
| # Sample data | ||
| df <- sf::st_as_sf(atlStorms2005) | ||
| df <- suppressWarnings(st_cast(df, "POINT")) | ||
| df <- df[sample(1:nrow(df), 50, replace = F),] | ||
| df$classes = sample(x = c("myclass1","myclass2","myclass3"), nrow(df), replace = TRUE) | ||
| df$ID <- paste0("ID_", 1:nrow(df)) | ||
|
|
||
| ## UI ################## | ||
| ui <- fluidPage( | ||
| ## CSS-style ############ | ||
| tags$head(tags$style(" | ||
| .globalclass { | ||
| width: 80px !important; | ||
| height: 80px !important; | ||
| margin-top: -40px !important; | ||
| margin-left: -40px !important; | ||
| font-size: 12px; | ||
| text-align: center; | ||
| border-radius: 50%; | ||
| color: black; | ||
| padding: 5px; | ||
| box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5); | ||
| background-size: cover; | ||
| background-repeat: no-repeat; | ||
| background-position: center center; | ||
| } | ||
| .myclass1 { | ||
| background-color: #FF5733; | ||
| } | ||
| .myclass2 { | ||
| background-color: #33FF57; | ||
| } | ||
| .myclass3 { | ||
| background-color: #3357FF; | ||
| } | ||
| .custom-html { | ||
| display: flex; | ||
| align-items: center; | ||
| justify-content: center; | ||
| flex-direction: column; | ||
| } | ||
| .custom-html img { | ||
| border-radius: 50%; | ||
| width: 20px; | ||
| height: 20px; | ||
| margin-bottom: 5px; | ||
| } | ||
| .custom-html .title { | ||
| font-weight: bold; | ||
| } | ||
| .custom-html .subtitle { | ||
| font-size: 10px; | ||
| } | ||
| ")), | ||
| ## CSS-style END ############ | ||
| leafletOutput("map", height = 600), | ||
| splitLayout(cellWidths = paste0(rep(20,4), "%"), | ||
| div(h4("Click Event"), verbatimTextOutput("click")), | ||
| div(h4("Mouseover Event"), verbatimTextOutput("mouseover")), | ||
| div(h4("Mouseout Event"), verbatimTextOutput("mouseout")), | ||
| div(h4("Dragend Event"), verbatimTextOutput("dragend")) | ||
| ) | ||
| ) | ||
|
|
||
| ## SERVER ################## | ||
| server <- function(input, output, session) { | ||
| # Function to get image URL based on class | ||
| getImageUrls <- function(classes) { | ||
| urls <- c( | ||
| "myclass1" = "https://cdn-icons-png.flaticon.com/512/1355/1355883.png", | ||
| "myclass2" = "https://cdn-icons-png.flaticon.com/512/1356/1356623.png", | ||
| "myclass3" = "https://cdn-icons-png.flaticon.com/512/1357/1357674.png" | ||
| ) | ||
| return(urls[classes]) | ||
| } | ||
|
|
||
| output$map <- renderLeaflet({ | ||
| leaflet() %>% | ||
| addTiles() %>% | ||
| # addMarkers(data = df, group="normalmarker", | ||
| # clusterId = "someclusterid2", | ||
| # clusterOptions = markerClusterOptions()) %>% | ||
| addDivicon(data = df | ||
| , html = ~paste0( | ||
| '<div class="custom-html">', | ||
| '<img src="', getImageUrls(classes), '">', | ||
| '<div class="title">', Name, '</div>', | ||
| '<div class="subtitle">MaxWind: ', MaxWind, '</div>', | ||
| '</div>' | ||
| ) | ||
| , className = ~paste("globalclass", classes) | ||
| , label = ~Name | ||
| , layerId = ~ID | ||
| , group = "Divicons" | ||
| , popup = ~paste("ID: ", ID, "<br>", | ||
| "Name: ", Name, "<br>", | ||
| "MaxWind:", MaxWind, "<br>", | ||
| "MinPress:", MinPress) | ||
| , options = markerOptions(draggable = TRUE) | ||
| # , clusterId = "someclusterid" | ||
| # , clusterOptions = markerClusterOptions() | ||
| ) %>% | ||
| addLabelgun("Divicons", 1) %>% | ||
| hideGroup("normalmarker") %>% | ||
| addLayersControl(overlayGroups = c("Divicons","normalmarker")) | ||
| }) | ||
| output$click <- renderPrint({input$map_marker_click}) | ||
| output$mouseover <- renderPrint({input$map_marker_mouseover}) | ||
| output$mouseout <- renderPrint({input$map_marker_mouseout}) | ||
| output$dragend <- renderPrint({input$map_marker_dragend}) | ||
| } | ||
|
|
||
| shinyApp(ui, server) |
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