From 30e2f562bcf20e742f19b2480b4c7ad33fc76b5f Mon Sep 17 00:00:00 2001
From: fukunee <fukun.ee@foxmail.com>
Date: Sat, 19 Sep 2026 17:38:24 +0800
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---
 src/scene/CesiumGlobe.js | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/src/scene/CesiumGlobe.js b/src/scene/CesiumGlobe.js
index 15ff13c..56b4317 100644
--- a/src/scene/CesiumGlobe.js
+++ b/src/scene/CesiumGlobe.js
@@ -77,23 +77,15 @@ function makeStickyNote(text, fontSize, selected = false) {
   // 箭头 + 圆角矩形一体化路径（箭头尖端在 (ox, oy + h/2)，指向坐标）
   ctx.beginPath();
   ctx.moveTo(ox, oy + h / 2);
-  // 上侧：平滑曲线从尖端连到左上角
-  ctx.quadraticCurveTo(
-    ox + arrowW * 0.7, oy + h / 2 - arrowH / 2,
-    ox + arrowW, oy + radius,
-  );
-  ctx.arcTo(ox + arrowW, oy, ox + arrowW + radius, oy, radius);
+  // 上侧：一条曲线从尖端平滑过渡到上边缘（终点水平切线，无折角）
+  ctx.quadraticCurveTo(ox + arrowW * 0.7, oy, ox + arrowW, oy);
   ctx.lineTo(ox + w - radius, oy);
   ctx.arcTo(ox + w, oy, ox + w, oy + radius, radius);
   ctx.lineTo(ox + w, oy + h - radius);
   ctx.arcTo(ox + w, oy + h, ox + w - radius, oy + h, radius);
-  ctx.lineTo(ox + arrowW + radius, oy + h);
-  ctx.arcTo(ox + arrowW, oy + h, ox + arrowW, oy + h - radius, radius);
-  // 下侧：平滑曲线从下边缘连回尖端
-  ctx.quadraticCurveTo(
-    ox + arrowW * 0.7, oy + h / 2 + arrowH / 2,
-    ox, oy + h / 2,
-  );
+  ctx.lineTo(ox + arrowW, oy + h);
+  // 下侧：一条曲线从下边缘平滑过渡回尖端（起点水平切线）
+  ctx.quadraticCurveTo(ox + arrowW * 0.7, oy + h, ox, oy + h / 2);
   ctx.closePath();
 
   if (selected) {