diff --git a/package-lock.json b/package-lock.json
index 525789a..4910c01 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "copper3d",
-  "version": "2.1.2",
+  "version": "2.1.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "copper3d",
-      "version": "2.1.2",
+      "version": "2.1.3",
       "license": "Apache-2.0",
       "dependencies": {
         "@types/dat.gui": "^0.7.9",
diff --git a/package.json b/package.json
index c38b3d7..9ebe846 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "copper3d",
   "description": "A 3d visualisation package base on threejs provides multiple scenes and Nrrd image load funtion.",
-  "version": "2.1.2",
+  "version": "2.1.3",
   "main": "dist/bundle.umd.js",
   "moudle": "dist/bundle.esm.js",
   "types": "dist/types/index.d.ts",
diff --git a/src/Utils/segmentation/DrawToolCore.ts b/src/Utils/segmentation/DrawToolCore.ts
index be0a60f..cb8d4dc 100644
--- a/src/Utils/segmentation/DrawToolCore.ts
+++ b/src/Utils/segmentation/DrawToolCore.ts
@@ -1333,7 +1333,7 @@ export class DrawToolCore extends CommToolsData {
       },
       y: {
         x: (val: number) => Math.ceil((val / nrrd_y_mm) * dimensions[1]),
-        z: (val: number) => Math.ceil((val / nrrd_z_mm) * dimensions[2]),
+        z: (val: number) => Math.ceil((1- val / nrrd_z_mm) * dimensions[2]),
       },
       z: {
         x: (val: number) => Math.ceil((val / nrrd_x_mm) * dimensions[0]),
@@ -1359,7 +1359,7 @@ export class DrawToolCore extends CommToolsData {
         x: (sliceIndex: number) =>
           Math.ceil((sliceIndex / dimensions[2]) * nrrd_z_mm),
         y: (sliceIndex: number) =>
-          Math.ceil((sliceIndex / dimensions[2]) * nrrd_z_mm),
+          Math.ceil((1 - sliceIndex / dimensions[2]) * nrrd_z_mm),
       },
     };
 
@@ -1375,7 +1375,7 @@ export class DrawToolCore extends CommToolsData {
       currentIndex = convertIndex[from][to](cursorNumX);
       oldIndex = currentIndex * ratios.x;
       convertCursorNumY = convertCursor[from][to](currentSliceIndex);
-      convertCursorNumX = cursorNumY;
+      convertCursorNumX = dimensions[2] * ratios.z - cursorNumY;
     } else if (from === "z" && to === "y") {
       currentIndex = convertIndex[from][to](cursorNumY);
       oldIndex = currentIndex * ratios[to];
@@ -1385,7 +1385,7 @@ export class DrawToolCore extends CommToolsData {
       currentIndex = convertIndex[from][to](cursorNumY);
       oldIndex = currentIndex * ratios[to];
       convertCursorNumX = convertCursor[from][to](currentSliceIndex);
-      convertCursorNumY = cursorNumX;
+      convertCursorNumY = dimensions[2] * ratios.z - cursorNumX;
     } else if (from === "x" && to === "z") {
       currentIndex = convertIndex[from][to](cursorNumX);
       oldIndex = currentIndex * ratios[to];
diff --git a/src/Utils/segmentation/NrrdTools.ts b/src/Utils/segmentation/NrrdTools.ts
index a89b878..98e3cae 100644
--- a/src/Utils/segmentation/NrrdTools.ts
+++ b/src/Utils/segmentation/NrrdTools.ts
@@ -1127,6 +1127,12 @@ export class NrrdTools extends DrawToolCore {
         0,
         -this.nrrd_states.changedHeight
       );
+    }else if (this.protectedData.axis === "y") {
+      this.protectedData.ctxes.displayCtx?.scale(1, -1);
+      this.protectedData.ctxes.displayCtx?.translate(
+        0,
+        -this.nrrd_states.changedHeight
+      );
     }
   }
 
diff --git a/src/index.ts b/src/index.ts
index da7a42e..9b3ed73 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -44,10 +44,10 @@ import { IPaintImage, ICommXYZ } from "./Utils/segmentation/coreTools/coreType";
 
 import "./css/style.css";
 
-export const REVISION = "v2.1.2";
+export const REVISION = "v2.1.3";
 
 console.log(
-  "%cCopper3D Visualisation %cBeta:v2.1.2",
+  "%cCopper3D Visualisation %cBeta:v2.1.3",
   "padding: 3px;color:white; background:#023047",
   "padding: 3px;color:white; background:#f50a25"
 );