Clean up the spot query and the map.

src/farpn-map.R

@@ -7,17 +7,22 @@ library(ggplot2)
 library(geosphere)
 library(rnaturalearth)
 
-# API URL
-api_spots <- "http://[300:6f6a:b087:4dda::8]/api/v1/spots"
+# API URL from the last 60 minutes
+api_spots <- "http://[300:6f6a:b087:4dda::8]/api/v1/spots?max_age=3600"
 
-# Get the spots
+# What time is it?
+time <- `attr<-`(Sys.time(),"tzone","UTC")
+
+# Get the spots 
 spots_raw <- fromJSON(api_spots) %>% mutate(across(c(de_longitude, de_latitude,
                                                             dx_longitude, dx_latitude),
                                                    as.numeric))
 
 # Convert to spatial
 spots <- spots_raw %>% st_as_sf(coords = c("dx_longitude", "dx_latitude"),
-                                crs = "EPSG:4326")
+                                crs = "EPSG:4326") %>% 
+                        mutate(color = band_color) %>% 
+                        select(c(-dx_flag, -de_flag))
 spotters <- spots_raw %>% st_as_sf(coords = c("de_longitude", "de_latitude"),
                                    crs = "EPSG:4326")
 # Make lines
@@ -41,7 +46,8 @@ great_circles <- bind_rows(great_circles_list,
                 group_by(id) %>% 
                 dplyr::summarize(do_union=FALSE) %>%  # do_union=FALSE doesn't work as well
                 st_cast("LINESTRING") %>% 
-                left_join(spots_raw, by = "id")
+                left_join(spots_raw, by = "id") %>% 
+                mutate(color = band_color)
 
 station_bbox <- matrix(c(st_bbox(spots),
             st_bbox(spotters)),
@@ -83,6 +89,21 @@ ggplot() +
     coord_sf(crs = "EPSG:4269",
              xlim = c(station_bbox$xmin, station_bbox$xmax),
              ylim = c(station_bbox$ymin, station_bbox$ymax)) +
-    theme_bw()
-    
+    theme_bw() +
+    theme(#axis.title.x=element_blank(),
+          axis.title.y=element_blank()) +
+    labs(x = time)
+ggsave("out/farpn_map_simple.png",
+       scale = 0.75)
+
+# Export spatial data
+st_write(spots, "out/spots.geojson", delete_dsn = T)
+st_write(spotters, "out/spotters.geojson", delete_dsn = T)
+st_write(great_circles, "out/great_circles.geojson", delete_dsn = T)
+
+# Try to combine in one file
+st_write(spots %>% bind_rows(spotters) %>% bind_rows(great_circles), "out/all.geojson", delete_dsn = T)
+
+
+