From 58d8603078c7ec0e94c649c7b834b29028db9ad4 Mon Sep 17 00:00:00 2001
From: Rishyanth Kondra <55177765+rishyanthkondra@users.noreply.github.com>
Date: Sat, 24 Jan 2026 16:43:38 +0530
Subject: [PATCH 1/2] [BugFix] Rose chart (area roseType) angles not uniform
 when end angle is not auto

Update angle condition for sector recalculation. 2*PI is default, but when end angle is not auto and span is < 2PI, this will not work.

Issue: rose chart  (roseType=area) angles are not uniform anymore
---
 src/chart/pie/pieLayout.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/chart/pie/pieLayout.ts b/src/chart/pie/pieLayout.ts
index 937f129c76..7b891b6d1b 100644
--- a/src/chart/pie/pieLayout.ts
+++ b/src/chart/pie/pieLayout.ts
@@ -165,7 +165,7 @@ export default function pieLayout(
 
         // Some sector is constrained by minAngle and padAngle
         // Rest sectors needs recalculate angle
-        if (restAngle < PI2 && validDataCount) {
+        if (restAngle < angleRange && validDataCount) {
             // Average the angle if rest angle is not enough after all angles is
             // Constrained by minAngle and padAngle
             if (restAngle <= 1e-3) {

From 654e1b397d15a46cbda1d203cbae65a6ae9f6616 Mon Sep 17 00:00:00 2001
From: Rishyanth Kondra <55177765+rishyanthkondra@users.noreply.github.com>
Date: Sun, 25 Jan 2026 11:11:22 +0530
Subject: [PATCH 2/2] [Bug fix] do not recompute equal angles in area rose
 chart

Rose chart > `area` type breaks with start and end angles
---
 src/chart/pie/pieLayout.ts | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/src/chart/pie/pieLayout.ts b/src/chart/pie/pieLayout.ts
index 7b891b6d1b..2da9decd5e 100644
--- a/src/chart/pie/pieLayout.ts
+++ b/src/chart/pie/pieLayout.ts
@@ -118,20 +118,18 @@ export default function pieLayout(
             if (roseType !== 'area') {
                 angle = (sum === 0 && stillShowZeroSum)
                     ? unitRadian : (value * unitRadian);
+                if (angle < minAndPadAngle) {
+                    angle = minAndPadAngle;
+                    restAngle -= minAndPadAngle;
+                }
+                else {
+                    valueSumLargerThanMinAngle += value;
+                }
             }
             else {
                 angle = angleRange / validDataCount;
             }
 
-
-            if (angle < minAndPadAngle) {
-                angle = minAndPadAngle;
-                restAngle -= minAndPadAngle;
-            }
-            else {
-                valueSumLargerThanMinAngle += value;
-            }
-
             const endAngle = currentAngle + dir * angle;
 
             // calculate display angle
@@ -165,7 +163,7 @@ export default function pieLayout(
 
         // Some sector is constrained by minAngle and padAngle
         // Rest sectors needs recalculate angle
-        if (restAngle < angleRange && validDataCount) {
+        if (restAngle < PI2 && validDataCount && roseType !== 'area') {
             // Average the angle if rest angle is not enough after all angles is
             // Constrained by minAngle and padAngle
             if (restAngle <= 1e-3) {