added functionality to find the data for a specific date from the aggregated data array

public/js/aggregation.js

@@ -24,6 +24,49 @@ function convertArray2JSON(arr) {
 }
 
 
+/**
+ * 
+ * @param {Array} array containing dates of type Date
+ * @param {Date} date date to look for in array 
+ * @returns postition of the array where the date was matched
+ */
+
+export const whereIsDateInArray = function(array, date) {
+
+    const DAY = date.getDate();
+    const MONTH = date.getMonth();
+    var pos = -1;
+
+    for (var i = 0; i < array.length; i++) {
+        var day = array[i].getDate();
+        var month = array[i].getMonth();
+
+        if (day === DAY && MONTH === month) {
+            pos = i;
+        }
+    }
+    return pos;
+
+}
+
+
+/**
+ * Converts the date string from DD.MM.YYYY obtained from HTML date picker to -> MM.DD.YYYY
+ * @param {String} selctedDate containing a date string in the format DD.MM.YYYY
+ * @returns {String} of the provided date in the format MM.DD.YYYY
+ */
+export const switchDayMonth_inDate = function(selectedDate) {
+
+
+    var splitedString = selectedDate.split('.');
+    var newDate = [];
+    newDate.push(splitedString[1]);
+    newDate.push(splitedString[0]);
+    newDate.push(splitedString[2]);
+    return newDate.join('.');;
+}
+
+
 /**
  * Format the response from SensorThings API to make it suitable for heatmap
  * @param {Array} obsArray Response from SensorThings API as array

public/js/appCesium.js

@@ -3,6 +3,8 @@
 // Functions
 import {
     aggregateResponse,
+    switchDayMonth_inDate,
+    whereIsDateInArray,
 } from "./aggregation.js";
 
 
@@ -374,8 +376,21 @@ const activate3DTileFeaturePicking = function() {
                     drawHeatMapHC(formatSTAResponseForHeatMap(agg.originalFormat));
                     drawLineChartHC(formatSTAResponseForLineChart(agg.originalFormat));
                     console.log(ALLDATA.length);
-                    var selectedDate = document.getElementById("DateSelected").value;
-                    console.log(selectedDate);
+                    var selectedDate = document.getElementById("DateSelected").innerHTML;
+
+                    var date = new Date(
+                        Date.parse(
+                            switchDayMonth_inDate(selectedDate)
+                        )
+                    );
+
+                    var p = whereIsDateInArray(ALLDATA[0].timestamp, date);
+                    if (p == -1)
+                        console.log('date not found in date array');
+                    else
+                        console.log('date found at position' + p);
+
+                    console.log(date);
 
                     // alert('waiting...');
                 });