Averaging heights

src/lib/height.ts

@@ -1,5 +1,6 @@
 export const getHeightStats = (wpts: Wpt[]) => {
   let previous: number | null = null,
+    previousAvg: number | null = null,
     min: number | null = null,
     max: number | null = null,
     positive: number = 0,
@@ -7,7 +8,7 @@ export const getHeightStats = (wpts: Wpt[]) => {
 
   wpts.forEach((wpt) => {
     if (wpt.ele) {
-      const ele = Math.round(wpt.ele);
+      const ele = 10 * Math.round(wpt.ele / 10);
       if (!max || ele > max) {
         max = ele;
       }
@@ -15,11 +16,15 @@ export const getHeightStats = (wpts: Wpt[]) => {
         min = ele;
       }
       if (previous) {
-        if (ele > previous) {
+        const avg = (ele + previous) / 2;
-          positive += ele - previous;
+        if (previousAvg) {
-        } else {
+          if (avg > previousAvg) {
-          negative += previous - ele;
+            positive += avg - previousAvg;
+          } else {
+            negative += avg - previousAvg;
+          }
         }
+        previousAvg = avg;
       }
       previous = ele;
     }