Fix: Works when orientation of item is set to top.

arrow.js

@@ -4,8 +4,8 @@
  *
  * Class to easily draw lines to connect items in the vis Timeline module.
  *
- * @version 4.1.0
- * @date    2022-08-01
+ * @version 4.1.1
+ * @date    2023-11-07
  *
  * @copyright (c) Javi Domenech ([email protected]) 
  *
@@ -224,7 +224,12 @@ export default class Arrow {
     //Función que recibe in Item y devuelve la posición en pantalla del item.
     _getItemPos (item) {
         let left_x = item.left;
-        let top_y = item.parent.top + item.parent.height - item.top - item.height;
+        let top_y;
+        if (this._timeline.options.orientation.item == "top") {
+            top_y = item.parent.top + item.top;
+        } else {
+            top_y = item.parent.top + item.parent.height - item.top - item.height;
+        }
         return {
             left: left_x,
             top: top_y,

examples/basic_example.js

@@ -7,6 +7,7 @@
         groupOrder: "content", // groupOrder can be a property name or a sorting function
         selectable: true,
         editable: true,
+        // orientation: "top",
         groupTemplate: function(group) { //function to hide groups
           var container = document.createElement('div');
           var label = document.createElement('span');

package.json

@@ -1,6 +1,6 @@
 {
   "name": "timeline-arrows",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "description": "Package to easily draw lines to connect items in the vis Timeline module.",
   "main": "arrow.js",
   "scripts": {