From c35376d566660f7066bd12a684f85d79bb2fe499 Mon Sep 17 00:00:00 2001
From: Kolan Sh <backbone@backbone.ws>
Date: Tue, 23 Jan 2018 12:56:47 +0300
Subject: [PATCH] OK In progress...

---
 src/Axis.vala  | 6 +++++-
 src/Chart.vala | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/Axis.vala b/src/Axis.vala
index 4a8861d..2481760 100644
--- a/src/Axis.vala
+++ b/src/Axis.vala
@@ -224,8 +224,12 @@ namespace CairoChart {
 		 * @param is_x is this X-axis or not.
 		 * @param nskip returns number of series to skip printing.
 		 */
-		public virtual void join_axes (bool is_x, ref int nskip) {
+		public virtual void join_axes (ref int nskip) {
 			Axis axis = this;
+			bool is_x;
+			if (ser.axis_x == this) is_x = true;
+			else if (ser.axis_y == this) is_x = false;
+			else return;
 			if (!ser.zoom_show) return;
 			if (nskip != 0) {--nskip; return;}
 			var max_rec_width = 0.0, max_rec_height = 0.0;
diff --git a/src/Chart.vala b/src/Chart.vala
index dc95f4b..e9d0c61 100644
--- a/src/Chart.vala
+++ b/src/Chart.vala
@@ -353,10 +353,10 @@ namespace CairoChart {
 			if (nshow == 1) joint_x = joint_y = false;
 
 			for (var si = series.length - 1, nskip = 0; si >= 0; --si)
-				series[si].axis_x.join_axes(true, ref nskip);
+				series[si].axis_x.join_axes(ref nskip);
 
 			for (var si = series.length - 1, nskip = 0; si >= 0; --si)
-				series[si].axis_y.join_axes(false, ref nskip);
+				series[si].axis_y.join_axes(ref nskip);
 		}
 
 		protected virtual void draw_plarea_border () {