fix bugs in sugiyama

graphview/src/main/java/de/blox/graphview/Node.java

@@ -12,7 +12,7 @@ public class Node {
     public Node(Object data) {
         this.data = data;
         setPos(new Vector());
-        size = new Size(0,0);
+        size = new Size(0, 0);
     }
 
     public Vector getPosition() {
@@ -57,12 +57,11 @@ public int getHeight() {
 
     @Override
     public String toString() {
-//        return "Node{" +
-//                "pos=" + pos +
-//                ", data=" + data +
-//                ", size=" + size +
-//                '}';
-        return data+"";
+        return "Node{" +
+                "pos=" + pos +
+                ", data=" + data +
+                ", size=" + size +
+                '}';
     }
 
     @Override

graphview/src/main/java/de/blox/graphview/edgerenderer/StraightEdgeRenderer.java

@@ -20,10 +20,10 @@ public void render(Canvas canvas, Graph graph, Paint paint) {
             final Node destination = edge.getDestination();
             final Vector destinationPosition = destination.getPosition();
 
-            canvas.drawLine((float) sourcePosition.getX() + source.getWidth() / 2f,
-                    (float) sourcePosition.getY() + source.getHeight() / 2f,
-                    (float) destinationPosition.getX() + destination.getWidth() / 2f,
-                    (float) destinationPosition.getY() + destination.getHeight() / 2f, paint);
+            canvas.drawLine(sourcePosition.getX() + source.getWidth() / 2f,
+                    sourcePosition.getY() + source.getHeight() / 2f,
+                    destinationPosition.getX() + destination.getWidth() / 2f,
+                    destinationPosition.getY() + destination.getHeight() / 2f, paint);
         }
     }
 }