From 08569c90343e9434542cea352632c8054cfdf1e7 Mon Sep 17 00:00:00 2001
From: liihuu <hu_li888@foxmail.com>
Date: Wed, 5 Jun 2024 01:13:22 +0800
Subject: [PATCH] fix: fix `zoomAtCoordinate`, `zoomAtDataIndex` and
 `zoomAtTimestamp` scale error

---
 src/Chart.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Chart.ts b/src/Chart.ts
index 50d190889..024f4ce54 100644
--- a/src/Chart.ts
+++ b/src/Chart.ts
@@ -908,11 +908,14 @@ export default class ChartImp implements Chart {
       const scaleDataSpace = barSpace * scale
       const difSpace = scaleDataSpace - barSpace
       const startTime = new Date().getTime()
+      let preScale = 0
       const animation: (() => void) = () => {
         const progress = (new Date().getTime() - startTime) / duration
         const finished = progress >= 1
         const progressDataSpace = finished ? difSpace : difSpace * progress
-        timeScaleStore.zoom(progressDataSpace / barSpace, coordinate)
+        const scale = progressDataSpace / barSpace
+        timeScaleStore.zoom(scale - preScale, coordinate)
+        preScale = scale
         if (!finished) {
           requestAnimationFrame(animation)
         }