From d98aa1b16e7f1d7a962a2f402401438993b2ae20 Mon Sep 17 00:00:00 2001
From: Marco Giuliano <marco.giuliano@tesisquare.com>
Date: Tue, 28 Jul 2020 12:43:03 +0200
Subject: [PATCH] Cannot pan on y-axis when zoomed and rotated=true #2799

---
 src/zoom.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/zoom.ts b/src/zoom.ts
index 1e7976321..28c285a71 100644
--- a/src/zoom.ts
+++ b/src/zoom.ts
@@ -57,7 +57,12 @@ ChartInternal.prototype.initZoom = function() {
 
   $$.zoom.updateDomain = function() {
     if (d3.event && d3.event.transform) {
-      $$.x.domain(d3.event.transform.rescaleX($$.subX).domain())
+      if (config.axis_rotated && config.zoom_type === 'scroll' && d3.event.sourceEvent.type === 'mousemove') {
+        // we're moving the mouse in a rotated chart with zoom = "scroll", so we need rescaleY (i.e. vertical)
+        $$.x.domain(d3.event.transform.rescaleY($$.subX).domain());
+      } else {
+        $$.x.domain(d3.event.transform.rescaleX($$.subX).domain());
+      }
     }
     return this
   }