From 76bc058602f6559983d70de6f904a32f05711734 Mon Sep 17 00:00:00 2001
From: Xiaoji Chen <cxiaoji@gmail.com>
Date: Wed, 4 Sep 2024 18:12:09 -0700
Subject: [PATCH] bug fix

---
 modules/aggregation-layers/src/contour-layer/contour-layer.ts | 4 ++--
 modules/aggregation-layers/src/grid-layer/grid-layer.ts       | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/modules/aggregation-layers/src/contour-layer/contour-layer.ts b/modules/aggregation-layers/src/contour-layer/contour-layer.ts
index 08c817de928..e6a0de31d57 100644
--- a/modules/aggregation-layers/src/contour-layer/contour-layer.ts
+++ b/modules/aggregation-layers/src/contour-layer/contour-layer.ts
@@ -274,8 +274,8 @@ export default class GridLayer<DataT = any, ExtraPropsT extends {} = {}> extends
         getBinId: (p: number[]) => {
           const positionCommon = viewport.projectFlat(p);
           return [
-            (positionCommon[0] - cellOriginCommon[0]) / cellSizeCommon[0],
-            (positionCommon[1] - cellOriginCommon[1]) / cellSizeCommon[1]
+            Math.floor((positionCommon[0] - cellOriginCommon[0]) / cellSizeCommon[0]),
+            Math.floor((positionCommon[1] - cellOriginCommon[1]) / cellSizeCommon[1])
           ];
         }
       });
diff --git a/modules/aggregation-layers/src/grid-layer/grid-layer.ts b/modules/aggregation-layers/src/grid-layer/grid-layer.ts
index 668d8ac005e..a23dcdd0d93 100644
--- a/modules/aggregation-layers/src/grid-layer/grid-layer.ts
+++ b/modules/aggregation-layers/src/grid-layer/grid-layer.ts
@@ -477,8 +477,8 @@ export default class GridLayer<DataT = any, ExtraPropsT extends {} = {}> extends
         getBinId: (p: number[]) => {
           const positionCommon = viewport.projectFlat(p);
           return [
-            (positionCommon[0] - cellOriginCommon[0]) / cellSizeCommon[0],
-            (positionCommon[1] - cellOriginCommon[1]) / cellSizeCommon[1]
+            Math.floor((positionCommon[0] - cellOriginCommon[0]) / cellSizeCommon[0]),
+            Math.floor((positionCommon[1] - cellOriginCommon[1]) / cellSizeCommon[1])
           ];
         }
       });