From 522abb88a87b4d25a510b338ede90856e7e79a1b Mon Sep 17 00:00:00 2001
From: "lixuefei.1313" <lixuef1313@163.com>
Date: Thu, 26 Feb 2026 15:49:50 +0800
Subject: [PATCH] fix(vchart): support functional alternateColor in axis grid

---
 packages/vchart/src/component/axis/base-axis.ts | 9 ++++-----
 packages/vchart/src/util/spec/transform.ts      | 9 ++++++++-
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/packages/vchart/src/component/axis/base-axis.ts b/packages/vchart/src/component/axis/base-axis.ts
index a36a64e595..bf7e7fad78 100644
--- a/packages/vchart/src/component/axis/base-axis.ts
+++ b/packages/vchart/src/component/axis/base-axis.ts
@@ -11,9 +11,7 @@ import type {
   Datum,
   StringOrNumber,
   IGroup as ISeriesGroup,
-  CoordinateType,
-  IRect,
-  ILayoutRect
+  CoordinateType
 } from '../../typings';
 import { BaseComponent } from '../base/base-component';
 import { CompilableData } from '../../compile/data';
@@ -57,6 +55,7 @@ import { getFormatFunction } from '../util';
 import type { IComponentMark } from '../../mark/interface/mark';
 import type { ICompilableMark } from '../../compile/mark';
 import type { ICompilableData } from './../../compile/data/interface';
+import { transformFunctionAttribute } from '../../util/spec/transform';
 
 export abstract class AxisComponent<T extends ICommonAxisSpec & Record<string, any> = any> // FIXME: 补充公共类型，去掉 Record<string, any>
   extends BaseComponent<T>
@@ -654,7 +653,7 @@ export abstract class AxisComponent<T extends ICommonAxisSpec & Record<string, a
   protected _getGridAttributes() {
     const spec = this._spec;
     return {
-      alternateColor: spec.grid.alternateColor,
+      alternateColor: transformFunctionAttribute(spec.grid.alternateColor),
       alignWithLabel: spec.grid.alignWithLabel,
       style: isFunction(spec.grid.style)
         ? (datum: Datum, index: number) => {
@@ -668,7 +667,7 @@ export abstract class AxisComponent<T extends ICommonAxisSpec & Record<string, a
           : {
               type: 'line',
               visible: spec.subGrid.visible,
-              alternateColor: spec.subGrid.alternateColor,
+              alternateColor: transformFunctionAttribute(spec.subGrid.alternateColor),
               style: transformToGraphic(spec.subGrid.style)
             }
     };
diff --git a/packages/vchart/src/util/spec/transform.ts b/packages/vchart/src/util/spec/transform.ts
index 34c58df02c..3d6f29958a 100644
--- a/packages/vchart/src/util/spec/transform.ts
+++ b/packages/vchart/src/util/spec/transform.ts
@@ -1,4 +1,4 @@
-import { isArray, isPlainObject, isString } from '@visactor/vutils';
+import { isArray, isFunction, isPlainObject, isString } from '@visactor/vutils';
 import type { ISeriesSpec } from '../../typings';
 
 // todo 以目前的场景来看，并没有递归的需要。
@@ -66,3 +66,10 @@ export function functionTransform(spec: ISeriesSpec, VChart: any): any {
   }
   return spec;
 }
+
+export function transformFunctionAttribute(att: unknown, ...args: unknown[]) {
+  if (isFunction(att)) {
+    return att(...args);
+  }
+  return att;
+}