From 64f330824a1686425678905544b2910c5151de8c Mon Sep 17 00:00:00 2001
From: Jacco van den Berg <jaccoberg2281@gmail.com>
Date: Thu, 5 May 2022 20:56:00 +0200
Subject: [PATCH 1/3] give correct range back for polarArea

---
 src/controllers/controller.polarArea.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/controllers/controller.polarArea.js b/src/controllers/controller.polarArea.js
index 92642a32fef..30db45df416 100644
--- a/src/controllers/controller.polarArea.js
+++ b/src/controllers/controller.polarArea.js
@@ -33,6 +33,30 @@ export default class PolarAreaController extends DatasetController {
     this.updateElements(arcs, 0, arcs.length, mode);
   }
 
+  /**
+	 * @protected
+	 */
+  getMinMax() {
+    const meta = this._cachedMeta;
+    const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY};
+
+    meta.data.forEach((element, index) => {
+      const parsed = this.getParsed(index).r;
+
+      if (!isNaN(parsed) && this.chart.getDataVisibility(index)) {
+        if (parsed < range.min) {
+          range.min = parsed;
+        }
+
+        if (parsed > range.max) {
+          range.max = parsed;
+        }
+      }
+    });
+
+    return range;
+  }
+
   /**
 	 * @private
 	 */

From e3b926a03f30ed725df9d397603e85ffd5e0476c Mon Sep 17 00:00:00 2001
From: Jacco van den Berg <jaccoberg2281@gmail.com>
Date: Thu, 5 May 2022 21:09:52 +0200
Subject: [PATCH 2/3] added test

---
 test/specs/controller.polarArea.tests.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/test/specs/controller.polarArea.tests.js b/test/specs/controller.polarArea.tests.js
index 340c58413cd..a5266e21521 100644
--- a/test/specs/controller.polarArea.tests.js
+++ b/test/specs/controller.polarArea.tests.js
@@ -1,6 +1,24 @@
 describe('Chart.controllers.polarArea', function() {
   describe('auto', jasmine.fixture.specs('controller.polarArea'));
 
+  it('should update the scale correctly when data visibility is changed', function() {
+    var expectedScaleMax = 1;
+    var chart = window.acquireChart({
+      type: 'polarArea',
+      data: {
+        datasets: [
+          {data: [100]}
+        ],
+        labels: ['x']
+      }
+    });
+
+    chart.toggleDataVisibility(0);
+    chart.update();
+
+    expect(chart.scales.r.max).toBe(expectedScaleMax);
+  });
+
   it('should be registered as dataset controller', function() {
     expect(typeof Chart.controllers.polarArea).toBe('function');
   });

From 4f5b6f653bdd9f9ecd3ea96787c56d63d6d4b1ce Mon Sep 17 00:00:00 2001
From: Jacco van den Berg <39033624+LeeLenaleee@users.noreply.github.com>
Date: Fri, 6 May 2022 13:02:48 +0200
Subject: [PATCH 3/3] tab to spaces

---
 src/controllers/controller.polarArea.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/controllers/controller.polarArea.js b/src/controllers/controller.polarArea.js
index 30db45df416..b717eca7c25 100644
--- a/src/controllers/controller.polarArea.js
+++ b/src/controllers/controller.polarArea.js
@@ -34,8 +34,8 @@ export default class PolarAreaController extends DatasetController {
   }
 
   /**
-	 * @protected
-	 */
+   * @protected
+   */
   getMinMax() {
     const meta = this._cachedMeta;
     const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY};