tmaps not rendering in local or deployed shiny apps

[BFroebRPG]

I recently updated packages of my R enviornment to sort out a deployment issue with shinyapps.io and have now encountered an issue where none of the tmaps in my application are being rendered. I created a simpler application to test and have found the same issue.

[BFroebRPG]

library(shiny)
library(tmap); tmap_mode('view')
library(sf)

# Define UI for application that draws a histogram
ui <- fluidPage(

    # Application title
    titlePanel("Old Faithful Geyser Data"),

    # Sidebar with a slider input for number of bins
    sidebarLayout(
        sidebarPanel(
            sliderInput("bins",
                        "Number of bins:",
                        min = 1,
                        max = 50,
                        value = 30)
        ),

        # Show a plot of the generated distribution
        mainPanel(
           tmapOutput("distPlot")
        )
    )
)

# Define server logic required to draw a histogram
server <- function(input, output) {

  counties <- read_sf('https://gist.githubusercontent.com/sdwfrost/d1c73f91dd9d175998ed166eb216994a/raw/e89c35f308cee7e2e5a784e1d3afc5d449e9e4bb/counties.geojson')

    output$distPlot <- renderTmap({
        # generate bins based on input$bins from ui.R
        tm_shape(counties) + tm_polygons()
    })
}

# Run the application
shinyApp(ui = ui, server = server)

[BFroebRPG]

R version 4.3.1 (2023-06-16 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 11 x64 (build 22621)

Matrix products: default


locale:
[1] LC_COLLATE=English_United States.utf8  LC_CTYPE=English_United States.utf8   
[3] LC_MONETARY=English_United States.utf8 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.utf8    

time zone: America/New_York
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] sf_1.0-14   tmap_3.3-4  shiny_1.7.5

loaded via a namespace (and not attached):
 [1] bslib_0.5.1              raster_3.6-23            htmlwidgets_1.6.2        lattice_0.21-8          
 [5] leaflet.providers_1.13.0 vctrs_0.6.3              tools_4.3.1              crosstalk_1.2.0         
 [9] generics_0.1.3           parallel_4.3.1           tibble_3.2.1             proxy_0.4-27            
[13] fansi_1.0.4              pkgconfig_2.0.3          KernSmooth_2.23-21       RColorBrewer_1.1-3      
[17] leaflet_2.2.0            lifecycle_1.0.3          compiler_4.3.1           terra_1.7-46            
[21] codetools_0.2-19         leafsync_0.1.0           httpuv_1.6.11            stars_0.6-3             
[25] htmltools_0.5.6          class_7.3-22             sass_0.4.7               pillar_1.9.0            
[29] later_1.3.1              jquerylib_0.1.4          ellipsis_0.3.2           rsconnect_1.1.0         
[33] classInt_0.4-9           cachem_1.0.8             lwgeom_0.2-13            wk_0.8.0                
[37] abind_1.4-5              mime_0.12                tidyselect_1.2.0         digest_0.6.33           
[41] dplyr_1.1.2              fastmap_1.1.1            grid_4.3.1               cli_3.6.1               
[45] magrittr_2.0.3           base64enc_0.1-3          dichromat_2.0-0.1        XML_3.99-0.14           
[49] utf8_1.2.3               leafem_0.2.0             e1071_1.7-13             withr_2.5.0             
[53] promises_1.2.1           sp_2.0-0                 png_0.1-8                memoise_2.0.1           
[57] tmaptools_3.1-1          viridisLite_0.4.2        s2_1.1.4                 rlang_1.1.1             
[61] Rcpp_1.0.11              xtable_1.8-4             glue_1.6.2               DBI_1.1.3               
[65] rstudioapi_0.15.0        jsonlite_1.8.7           R6_2.5.1                 units_0.8-3 

[mtennekes]

Does a shiny app with leaflet or mapview (instead of tmap) work?

[BFroebRPG]

yes, wrapping the tmap object in tmap_leaflet and then switching to renderLeaflet and leafletOutput works, but none of the base tmap functions

[mtennekes]

So it's just an issue with shinyapps.io, right? Locally, it works.
Could you also test mapview? (e.g. renderMapview etc). Mapview should work the same way as tmap.

[BFroebRPG]

No it happens on local apps as well

[BFroebRPG]

I do not use mapview very often (I didn't even have the package installed) so I could be implementing it incorrectly, but

library(shiny)
library(tmap); tmap_mode('view')
library(sf)
library(mapview)

# Define UI for application that draws a histogram
ui <- fluidPage(

    # Application title
    titlePanel("Old Faithful Geyser Data"),

    # Sidebar with a slider input for number of bins
    sidebarLayout(
        sidebarPanel(
            sliderInput("bins",
                        "Number of bins:",
                        min = 1,
                        max = 50,
                        value = 30)
        ),

        # Show a plot of the generated distribution
        mainPanel(
           mapviewOutput("distPlot")
        )
    )
)

# Define server logic required to draw a histogram
server <- function(input, output) {

  counties <- read_sf('https://gist.githubusercontent.com/sdwfrost/d1c73f91dd9d175998ed166eb216994a/raw/e89c35f308cee7e2e5a784e1d3afc5d449e9e4bb/counties.geojson')

    output$distPlot <- renderMapview({
        # generate bins based on input$bins from ui.R
      mapview(counties)
    })
}

# Run the application
shinyApp(ui = ui, server = server)

generates the following error

Warning: Error in exprToQuo: Don't know how to convert 'leaflet' to a function; a quosure or quoted expression was expected
  44: stop
  43: exprToQuo
  42: exprToFunction
  41: shiny::installExprFunction
  40: htmlwidgets::shinyRenderWidget
  39: renderMapview
  38: server [C:\Users\BrianFroeb\Documents\shinyTesting/app.R#43]
   1: shiny::runApp
Error in exprToQuo(expr, env, quoted = TRUE) : 
  Don't know how to convert 'leaflet' to a function; a quosure or quoted expression was expected

[tim-salabim]

To pitch in here, I don't think the mapview shiny functions work at all... I always recommend using the @map slot with the standard leaflet shiny functions. In short, mapview won't be any help in tracking down the issue here.

[mtennekes]

Thx @tim-salabim same approach in tmap.

The example worked for me, until I updated shiny from 1.7.4 to 1.7.5 and leaflet from 2.1.2 to 2.2.0....

[mtennekes]

Working. Please test @BFroebRPG

[BFroebRPG]

It appears to be! Thanks so much!