diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/Position.java b/app/src/main/java/org/ntlab/acanthus_client/entities/Position.java
index 7d254be..d30a3c1 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/Position.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/Position.java
@@ -3,11 +3,13 @@
 //-----------------------------------------------------------------
 // ペン座標
 public class Position {
+    int i;
     private Float x;
     private Float y;
 
     //-----------------------------------------------------------------
     // getter
+    public int getI(){return this.i;};
     public Float getX() {
         return this.x;
     }
@@ -18,7 +20,8 @@
 
     //-----------------------------------------------------------------
     // setter
-    public void setPosition(float x, float y) {
+    public void setPosition(int i, float x, float y) {
+        this.i = i;
         this.x = x;
         this.y = y;
     }