From 7ccb4e87d721a0ddcb9df0ce8b0f8877f5598dd2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Pior?= <piorek82@gmail.com>
Date: Mon, 23 Jul 2018 23:09:45 +0200
Subject: [PATCH]  #7625 fix python NanoPlot problems (#7663)

* #7625 handle single point correctly

* #7625 fixed num to string conversion for nanoplot elements coordinates

* #7625 fix python NanoPlot problems

* #7625 fix

* #7625 CR fix
---
 beakerx/beakerx/plot/chart.py     | 10 +++++++---
 js/notebook/src/plot/plotUtils.js |  6 ++++--
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/beakerx/beakerx/plot/chart.py b/beakerx/beakerx/plot/chart.py
index 354a8d73cf..0ef69bdbee 100644
--- a/beakerx/beakerx/plot/chart.py
+++ b/beakerx/beakerx/plot/chart.py
@@ -442,11 +442,15 @@ def __init__(self, **kwargs):
     
     def add(self, item):
         super(NanoPlot, self).add(item)
-        converted = []
         for l in self.chart.graphics_list:
+            convertedx = []
+            convertedy = []
             for x in l.x:
-                converted.append(str(x))
-            l.x = converted
+                convertedx.append(str(x))
+            l.x = convertedx
+            for y in l.y:
+                convertedy.append(str(y))
+            l.y = convertedy
         self.model = self.chart.transform()
         return self
 
diff --git a/js/notebook/src/plot/plotUtils.js b/js/notebook/src/plot/plotUtils.js
index 6ca548b025..a952ee3f93 100644
--- a/js/notebook/src/plot/plotUtils.js
+++ b/js/notebook/src/plot/plotUtils.js
@@ -218,10 +218,12 @@ define([
 
       var self = this;
       var increaseRange = function(value) {
-        return self.plus(value, self.div((value || 1), 10));
+        var v = self.eq(value, 0) ? 1 : value || 1;
+        return self.plus(value, self.div(v, 10));
       };
       var decreaseRange = function(value){
-        return self.minus(value, self.div((value || 1), 10));
+        var v = self.eq(value, 0) ? 1 : value || 1;
+        return self.minus(value, self.div(v, 10));
       };
 
       if (this.eq(datarange.xl, datarange.xr)) {