diff --git a/app/src/main/java/com/mirenkov/ktheightmap/MapCanvas.kt b/app/src/main/java/com/mirenkov/ktheightmap/MapCanvas.kt
index 593f33f..a78a44f 100644
--- a/app/src/main/java/com/mirenkov/ktheightmap/MapCanvas.kt
+++ b/app/src/main/java/com/mirenkov/ktheightmap/MapCanvas.kt
@@ -46,15 +46,26 @@ fun MapCanvas(
             color = backColor,
             size = size
         )
+        val oldLevel = tileContainer.getLevel()
+        val level = scale.floatValue.toInt()
 
+        if (oldLevel > level) {
+            offsetX.floatValue -= size.width / 2F
+            offsetY.floatValue -= size.height / 2F
+            offsetX.floatValue /= 2F
+            offsetY.floatValue /= 2F
+        } else if (oldLevel < level) {
+            offsetX.floatValue *= 2F
+            offsetY.floatValue *= 2F
+            offsetX.floatValue += size.width / 2F
+            offsetY.floatValue += size.height / 2F
+        }
         val tileOffsetX = (offsetX.floatValue / TILE_SIZE).toInt()
         val tileOffsetY = (offsetY.floatValue / TILE_SIZE).toInt()
 
         val strippedOffsetX = offsetX.floatValue % TILE_SIZE
         val strippedOffsetY = offsetY.floatValue % TILE_SIZE
 
-        val level = scale.floatValue.toInt()
-
         val offset = Offset(strippedOffsetX, strippedOffsetY)
 
         val grid = size / TILE_SIZE
@@ -62,7 +73,7 @@ fun MapCanvas(
         val gridWidth = grid.width.toInt()
         val gridHeight = grid.height.toInt()
 
-        val tiles = tileContainer.getTiles(tileOffsetX, tileOffsetY, tileOffsetX + gridWidth, tileOffsetY + gridHeight, level)
+        val tiles = tileContainer.getTiles(tileOffsetX, tileOffsetY, tileOffsetX + gridWidth + 2, tileOffsetY + gridHeight + 2, level)
 
         for (cellX in 0 .. gridWidth + 2) {
             val tileX = tileOffsetX + cellX
diff --git a/app/src/main/java/com/mirenkov/ktheightmap/TileContainer.kt b/app/src/main/java/com/mirenkov/ktheightmap/TileContainer.kt
index 8e257d9..02095ec 100644
--- a/app/src/main/java/com/mirenkov/ktheightmap/TileContainer.kt
+++ b/app/src/main/java/com/mirenkov/ktheightmap/TileContainer.kt
@@ -13,6 +13,8 @@ class TileContainer(private val vm: TileViewModel, private val coroutineScope: C
 
     private var level = 1
 
+    fun getLevel(): Int = level
+
     fun getTiles(_startX: Int, _startY: Int, _endX: Int, _endY: Int, _level: Int): List<Tile> {
         val newParams = arrayOf( _startX, _startY, _endX, _endY, _level )
         val oldParams = arrayOf( startX, startY, endX, endY, level )