From 9e05dd1aba034edab12f1b19d1c5ee1071314b22 Mon Sep 17 00:00:00 2001
From: unknown <frankherko@gmail.com>
Date: Thu, 14 Jan 2021 14:50:48 +0100
Subject: [PATCH] fix distVincenty() to using var instead of let again

---
 static/scripts/accChart.js | 49 +++++++++++++++++++++-----------------
 static/scripts/refull.js   |  4 ----
 2 files changed, 27 insertions(+), 26 deletions(-)

diff --git a/static/scripts/accChart.js b/static/scripts/accChart.js
index e31f5ad..bf75587 100644
--- a/static/scripts/accChart.js
+++ b/static/scripts/accChart.js
@@ -6,9 +6,14 @@
  * @authors Timo Volkmann, Frank Herkommer.
  */
 
+//list of all horizontal accuracies sent in by the Ublox
+let allAccSerial = []
+//list of all coordinates sent in by the Ublox
+let allSerialCoords = []
+
 //Defines the chart and its properties
-let ctx = document.getElementById('accChart').getContext('2d');
-let accChart = new Chart(ctx, {
+let ctx1 = document.getElementById('accChart').getContext('2d');
+let accChart = new Chart(ctx1, {
     type: 'line',
     data: {
         labels: [],
@@ -140,26 +145,26 @@ function distVincenty(coord1, coord2) {
     const lat1 = coord1[1]
     const lon2 = coord2[0]
     const lat2 = coord2[1]
-    const a = 6378137, b = 6356752.314245,  f = 1/298.257223563;  // WGS-84 ellipsoid params
-    let L = (lon2-lon1).toRad()
-    let U1 = Math.atan((1-f) * Math.tan(lat1.toRad()));
-    let U2 = Math.atan((1-f) * Math.tan(lat2.toRad()));
-    let sinU1 = Math.sin(U1), cosU1 = Math.cos(U1);
-    let sinU2 = Math.sin(U2), cosU2 = Math.cos(U2);
+    var a = 6378137, b = 6356752.314245,  f = 1/298.257223563;  // WGS-84 ellipsoid params
+    var L = (lon2-lon1).toRad()
+    var U1 = Math.atan((1-f) * Math.tan(lat1.toRad()));
+    var U2 = Math.atan((1-f) * Math.tan(lat2.toRad()));
+    var sinU1 = Math.sin(U1), cosU1 = Math.cos(U1);
+    var sinU2 = Math.sin(U2), cosU2 = Math.cos(U2);
 
-    let lambda = L, lambdaP, iterLimit = 100;
+    var lambda = L, lambdaP, iterLimit = 100;
     do {
-        let sinLambda = Math.sin(lambda), cosLambda = Math.cos(lambda);
-        let sinSigma = Math.sqrt((cosU2*sinLambda) * (cosU2*sinLambda) +
+        var sinLambda = Math.sin(lambda), cosLambda = Math.cos(lambda);
+        var sinSigma = Math.sqrt((cosU2*sinLambda) * (cosU2*sinLambda) +
             (cosU1*sinU2-sinU1*cosU2*cosLambda) * (cosU1*sinU2-sinU1*cosU2*cosLambda));
         if (sinSigma===0) return 0;  // co-incident points
-        let cosSigma = sinU1*sinU2 + cosU1*cosU2*cosLambda;
-        let sigma = Math.atan2(sinSigma, cosSigma);
-        let sinAlpha = cosU1 * cosU2 * sinLambda / sinSigma;
-        let cosSqAlpha = 1 - sinAlpha*sinAlpha;
-        let cos2SigmaM = cosSigma - 2*sinU1*sinU2/cosSqAlpha;
+        var cosSigma = sinU1*sinU2 + cosU1*cosU2*cosLambda;
+        var sigma = Math.atan2(sinSigma, cosSigma);
+        var sinAlpha = cosU1 * cosU2 * sinLambda / sinSigma;
+        var cosSqAlpha = 1 - sinAlpha*sinAlpha;
+        var cos2SigmaM = cosSigma - 2*sinU1*sinU2/cosSqAlpha;
         if (isNaN(cos2SigmaM)) cos2SigmaM = 0;  // equatorial line: cosSqAlpha=0 (§6)
-        let C = f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));
+        var C = f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));
         lambdaP = lambda;
         lambda = L + (1-C) * f * sinAlpha *
             (sigma + C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));
@@ -167,12 +172,12 @@ function distVincenty(coord1, coord2) {
 
     if (iterLimit===0) return NaN  // formula failed to converge
 
-    let uSq = cosSqAlpha * (a*a - b*b) / (b*b);
-    let A = 1 + uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));
-    let B = uSq/1024 * (256+uSq*(-128+uSq*(74-47*uSq)));
-    let deltaSigma = B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
+    var uSq = cosSqAlpha * (a*a - b*b) / (b*b);
+    var A = 1 + uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));
+    var B = uSq/1024 * (256+uSq*(-128+uSq*(74-47*uSq)));
+    var deltaSigma = B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
         B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));
-    let s = b*A*(sigma-deltaSigma);
+    var s = b*A*(sigma-deltaSigma);
 
     s = s.toFixed(3); // round to 1mm precision
     return s;
diff --git a/static/scripts/refull.js b/static/scripts/refull.js
index 61c7e2f..38cd459 100644
--- a/static/scripts/refull.js
+++ b/static/scripts/refull.js
@@ -5,10 +5,6 @@
  */
 
 let indexes
-//list of all horizontal accuracies sent in by the Ublox
-let allAccSerial = []
-//list of all coordinates sent in by the Ublox
-let allSerialCoords = []
 
 function composeTimestamp(servertime){
     let composed;