avoid zoom-level relative calculation

src/org/oscim/utils/GeometryUtils.java

@@ -14,6 +14,8 @@
  */
 package org.oscim.utils;
 
+import org.oscim.core.Point2D;
+
 import android.graphics.Point;
 
 /**
@@ -169,18 +171,13 @@ public final class GeometryUtils {
 		return Math.abs((P.x - A.x) * (B.y - A.y) - (P.y - A.y) * (B.x - A.x)) / normalLength;
 	}
 
-	public static final class Point2D {
-		public double x;
-		public double y;
-	}
-
 	// from libosmscout-render
 	public static byte calcLinesIntersect(
 			double ax1, double ay1,
 			double ax2, double ay2,
 			double bx1, double by1,
 			double bx2, double by2,
-			GeometryUtils.Point2D point)
+			Point2D point)
 	{
 		double ua_numr = (bx2 - bx1) * (ay1 - by1) - (by2 - by1) * (ax1 - bx1);
 		double ub_numr = (ax2 - ax1) * (ay1 - by1) - (ay2 - ay1) * (ax1 - bx1);