From 4c394c60f9439feea637047f4396f9ef9b079ab9 Mon Sep 17 00:00:00 2001
From: Jason Pan <JasonPan@users.noreply.github.com>
Date: Tue, 18 Jan 2022 23:21:48 +1100
Subject: [PATCH] Fix AbstractChart calculating incorrect range when both
 fromZero and fromNumber are set

---
 src/AbstractChart.tsx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/AbstractChart.tsx b/src/AbstractChart.tsx
index 612ffdfb..abc27d90 100644
--- a/src/AbstractChart.tsx
+++ b/src/AbstractChart.tsx
@@ -42,7 +42,9 @@ class AbstractChart<
   IState extends AbstractChartState
 > extends Component<AbstractChartProps & IProps, AbstractChartState & IState> {
   calcScaler = (data: number[]) => {
-    if (this.props.fromZero) {
+    if (this.props.fromZero && this.props.fromNumber) {
+      return Math.max(...data, this.props.fromNumber) - Math.min(...data, 0) || 1;
+    } else if (this.props.fromZero) {
       return Math.max(...data, 0) - Math.min(...data, 0) || 1;
     } else if (this.props.fromNumber) {
       return (