Upload depth_interactive_map_alpha.R

depth_interactive_map_alpha.R

@@ -279,7 +279,10 @@ TEMPORAL_LAYERS <- list(
                         ym_expr        = "CAST(date_part('year', date_start) AS INTEGER) * 12 + CAST(date_part('month', date_start) AS INTEGER) - 1",
                         point_ym_expr  = "CAST(date_part('year', date_start) AS INTEGER) * 12 + CAST(date_part('month', date_start) AS INTEGER) - 1",
                         kind = "point"),
-  "pam-choro"    = list(label = "PAM events",      color = COL_COUNT,
+  "pam-choro"    = list(label = "PAM events",
+                        # COL_COUNT (#374151) was nearly invisible on the dark
+                        # strip; use PAM_PAL's mid-teal so the bars actually read.
+                        color = "#41b6c4",
                         table = "dim_pam_mun",
                         ym_expr   = "CAST(date_part('year', date) AS INTEGER) * 12 + CAST(date_part('month', date) AS INTEGER) - 1",
                         agg       = "SUM(pam_n)",
@@ -4589,16 +4592,14 @@ server <- function(input, output, session) {
         dplyr::select(-wkt)
     }, error = function(e) { message("PAM ym re-query: ", e$message); NULL })
     if (is.null(sf_data)) return()
+    # Swap the source data on the existing pam-choro layer instead of
+    # remove + re-add. mapgl's add_fill_layer creates a source named after
+    # the layer ID; remove_layer doesn't drop the source, so the previous
+    # pattern was hitting "source already exists" on the second activation
+    # and leaving the map in a broken state -- this is what was making the
+    # app appear to freeze whenever PAM was re-enabled.
     maplibre_proxy("map") |>
-      remove_layer("pam-choro") |>
-      add_fill_layer(
-        id           = "pam-choro",
-        source       = sf_data,
-        fill_color   = pam_qstep_expr(),
-        fill_opacity = 0.7,
-        tooltip      = list("concat", "<b>", list("get","municipio"), "</b>",
-                            "<br>Irregular migration events: ",
-                            list("to-string", list("get","pam_n"))))
+      set_source(layer_id = "pam-choro", source = sf_data)
   }, ignoreNULL = TRUE, ignoreInit = TRUE)
 
   # --- PAM temporal plot (irregular migration events over time) ---------------