Fix: Use custom max and min computations for large arrays.

Author: We-Gold

lib/math_helpers.ts

@@ -58,7 +58,6 @@ export const haversineDistance = (point1: Point, point2: Point): number => {
  * @returns A duration object
  */
 
-
 export const calculateDuration = (
 	points: Point[],
 	distance: Distance,
@@ -166,9 +165,17 @@ export const calculateElevation = (points: Point[]): Elevation => {
 		}
 	}
 
+	// Find the maximum and minimum elevation
+	let max = elevation[0] ?? null
+	let min = elevation[0] ?? null
+	for (let i = 1; i < elevation.length; i++) {
+		if (elevation[i] > max) max = elevation[i]
+		if (elevation[i] < min) min = elevation[i]
+	}
+
 	return {
-		maximum: elevation.length ? Math.max(...elevation) : null,
-		minimum: elevation.length ? Math.min(...elevation) : null,
+		maximum: max,
+		minimum: min,
 		positive: Math.abs(dp) || null,
 		negative: Math.abs(dn) || null,
 		average: elevation.length ? sum / elevation.length : null,

package.json

@@ -2,7 +2,7 @@
 	"name": "@we-gold/gpxjs",
 	"author": "Weaver Goldman <we.goldm@gmail.com>",
 	"description": "GPX.js is a modern library for parsing GPX files and converting them to GeoJSON.",
-	"version": "1.0.13",
+	"version": "1.0.14",
 	"type": "module",
 	"license": "MIT",
 	"repository": {