diff --git a/vtm-android/src/org/oscim/android/canvas/AndroidCanvas.java b/vtm-android/src/org/oscim/android/canvas/AndroidCanvas.java
index 75bdd745..71180702 100644
--- a/vtm-android/src/org/oscim/android/canvas/AndroidCanvas.java
+++ b/vtm-android/src/org/oscim/android/canvas/AndroidCanvas.java
@@ -1,6 +1,6 @@
 /*
  * Copyright 2013 Hannes Janetzek
- * Copyright 2016 devemux86
+ * Copyright 2016-2017 devemux86
  * Copyright 2017 nebular
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
@@ -68,7 +68,7 @@ public class AndroidCanvas implements Canvas {
     }
 
     @Override
-    public void drawLine(int x1, int y1, int x2, int y2, Paint paint) {
+    public void drawLine(float x1, float y1, float x2, float y2, Paint paint) {
         canvas.drawLine(x1, y1, x2, y2, ((AndroidPaint) paint).mPaint);
     }
 
diff --git a/vtm-desktop/src/org/oscim/awt/AwtCanvas.java b/vtm-desktop/src/org/oscim/awt/AwtCanvas.java
index 6c3abb3a..810fb43f 100644
--- a/vtm-desktop/src/org/oscim/awt/AwtCanvas.java
+++ b/vtm-desktop/src/org/oscim/awt/AwtCanvas.java
@@ -150,12 +150,12 @@ public class AwtCanvas implements Canvas {
     }
 
     @Override
-    public void drawLine(int x1, int y1, int x2, int y2, Paint paint) {
+    public void drawLine(float x1, float y1, float x2, float y2, Paint paint) {
         AwtPaint awtPaint = (AwtPaint) paint;
         this.canvas.setColor(awtPaint.color);
         if (awtPaint.stroke != null)
             this.canvas.setStroke(awtPaint.stroke);
-        this.canvas.drawLine(x1, y1, x2, y2);
+        this.canvas.drawLine((int) x1, (int) y1, (int) x2, (int) y2);
     }
 
     @Override
diff --git a/vtm-ios/src/org/oscim/ios/backend/IosCanvas.java b/vtm-ios/src/org/oscim/ios/backend/IosCanvas.java
index b05b2cc2..2adb71f7 100644
--- a/vtm-ios/src/org/oscim/ios/backend/IosCanvas.java
+++ b/vtm-ios/src/org/oscim/ios/backend/IosCanvas.java
@@ -1,6 +1,6 @@
 /*
  * Copyright 2016 Longri
- * Copyright 2016 devemux86
+ * Copyright 2016-2017 devemux86
  * Copyright 2017 nebular
  *
  * This program is free software: you can redistribute it and/or modify it under the
@@ -98,8 +98,7 @@ public class IosCanvas implements Canvas {
     }
 
     @Override
-    public void drawLine(int x1, int y1, int x2, int y2, Paint paint) {
-
+    public void drawLine(float x1, float y1, float x2, float y2, Paint paint) {
         //flip Y-axis
         y1 = (int) (this.cgBitmapContext.getHeight() - y1);
         y2 = (int) (this.cgBitmapContext.getHeight() - y2);
diff --git a/vtm-web/src/org/oscim/gdx/client/GwtCanvas.java b/vtm-web/src/org/oscim/gdx/client/GwtCanvas.java
index 29d2a9a4..792cac92 100644
--- a/vtm-web/src/org/oscim/gdx/client/GwtCanvas.java
+++ b/vtm-web/src/org/oscim/gdx/client/GwtCanvas.java
@@ -1,6 +1,6 @@
 /*
  * Copyright 2013 Hannes Janetzek
- * Copyright 2016 devemux86
+ * Copyright 2016-2017 devemux86
  * Copyright 2017 nebular
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
@@ -101,7 +101,7 @@ public class GwtCanvas implements org.oscim.backend.canvas.Canvas {
     }
 
     @Override
-    public void drawLine(int x1, int y1, int x2, int y2, Paint paint) {
+    public void drawLine(float x1, float y1, float x2, float y2, Paint paint) {
         // TODO
     }
 
diff --git a/vtm/src/org/oscim/backend/canvas/Canvas.java b/vtm/src/org/oscim/backend/canvas/Canvas.java
index 006cbd89..7eefe492 100644
--- a/vtm/src/org/oscim/backend/canvas/Canvas.java
+++ b/vtm/src/org/oscim/backend/canvas/Canvas.java
@@ -1,6 +1,6 @@
 /*
  * Copyright 2013 Hannes Janetzek
- * Copyright 2016 devemux86
+ * Copyright 2016-2017 devemux86
  * Copyright 2017 nebular
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
@@ -45,7 +45,7 @@ public interface Canvas {
 
     void drawCircle(float x, float y, float radius, Paint paint);
 
-    void drawLine(int x1, int y1, int x2, int y2, Paint paint);
+    void drawLine(float x1, float y1, float x2, float y2, Paint paint);
 
     void fillColor(int color);