Fix when nothing is selected and when only poly and circle intersection exists

public/js/functions.js

@@ -238,19 +238,22 @@ map.on("click", "muni_polygon", e => {
         let muniInteresects = selectedMunis.filter( el => turf.intersect(el.geom, circleGeom));
         let intersectedIDs = muniInteresects.map(a => a.id);
 
-        if (intersectedIDs.length > 0) {
+        if (intersectedIDs.length > 0 ) { // if at least one polygons intersects circle geom
+            // ids not intersecting circle
             let selectedIDs2 = selectedIDs.filter( id => intersectedIDs.indexOf(id) == -1 );
+            // depending on selected polygons, use them and geom inside circle
             map.setFilter("denue",
                 ["any",[
                     "match",
                     ["get", "municipio_cvegeo"],
-                    selectedIDs2,
+                    // if there are polygons outside of circle intersection or use fake id to only use circle geom
+                    selectedIDs2.length > 0 ? selectedIDs2 : ["sin-clave"],
                     true,
                     false
                 ], ['within', circleGeom]
                 ]
             );
-        } else {
+        } else if (selectedIDs.length > 0) { // if no circle intersection but only selected polygons
             map.setFilter("denue",
                 ["all",[
                     "match",
@@ -261,7 +264,18 @@ map.on("click", "muni_polygon", e => {
                 ]
                 ]
             );
-        } //TODO: handle case when nothing is selected
+        } else if (selectedIDs.length == 0) { // if no selected polygons use fake id
+            map.setFilter("denue",
+                ["all",[
+                    "match",
+                    ["get", "municipio_cvegeo"],
+                    ["sin-clave"],
+                    true,
+                    false
+                ]
+                ]
+            );
+        }
     }
 });