From 52bc27d7d2a43040fdc48b275a3df2668224095a Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Fri, 26 Jun 2020 19:28:19 +1000
Subject: [PATCH] smooth area path

---
 ts/src/stats/histogram-graph.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ts/src/stats/histogram-graph.ts b/ts/src/stats/histogram-graph.ts
index 118c58e98..a072dc459 100644
--- a/ts/src/stats/histogram-graph.ts
+++ b/ts/src/stats/histogram-graph.ts
@@ -11,7 +11,7 @@ import { select, mouse } from "d3-selection";
 import { cumsum, max, Bin } from "d3-array";
 import { scaleLinear, ScaleLinear, ScaleSequential } from "d3-scale";
 import { axisBottom, axisLeft } from "d3-axis";
-import { area } from "d3-shape";
+import { area, curveBasis } from "d3-shape";
 import { showTooltip, hideTooltip } from "./tooltip";
 import { GraphBounds } from "./graphs";
 
@@ -108,6 +108,7 @@ export function histogramGraph(
             .attr(
                 "d",
                 area()
+                    .curve(curveBasis)
                     .x((d, idx) => {
                         if (idx === 0) {
                             return x(data.bins[0].x0!);