delete currentOpacity variable

reports/static/reports/js/minimap.js

@@ -38,15 +38,9 @@ const map = new ol.Map({
 map.getView().fit(feature.getGeometry());
 
 
-// show first date and current date
-let currentDate;
-let currentOpacity = 1;
-
-if (labels && labels.length > 0) {
-  currentDate = labels[0];
-  addImageLayer(currentDate)
-}
-
+// show first date
+let currentDate = labels[0];
+addImageLayer(currentDate)
 
 function addImageLayer(labelDate) {
   $.ajax({
@@ -63,7 +57,7 @@ function addImageLayer(labelDate) {
       getSelectedCheckboxes().forEach(layer_type => {
         const xyz = new ol.layer.Tile({
           name: layer_type,
-          opacity: (layer_type == 'TCI') ? 1 : currentOpacity,
+          opacity: (layer_type == 'TCI') ? 1 : $('#opacitySlide').val(),
           source: new ol.source.XYZ({
             projection: 'EPSG:3857',
             url: '/reports/tiles/'+purchase_id+'/'+zone+'/'+layer_type+'/'+labelDate+'/{z}/{x}/{-y}.png',
@@ -92,7 +86,6 @@ function removeImageLayers() {
 }
 
 function setOpacity(value) {
-  currentOpacity = value;
   map.getLayers().getArray().slice().forEach(layer => {
     if(layer.get('name') != 'mapbox' && layer.get('name') != 'polygon' && layer.get('name') != 'TCI') {
       layer.setOpacity(value)