From a42bd9684fc7a489dd16ef46a09730e394355a91 Mon Sep 17 00:00:00 2001
From: Hannes Janetzek <hannes.janetzek@gmail.com>
Date: Sun, 26 Jan 2014 20:08:00 +0100
Subject: [PATCH] LineLayer: drop line segments short than 1/8

---
 vtm/src/org/oscim/renderer/elements/LineLayer.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/vtm/src/org/oscim/renderer/elements/LineLayer.java b/vtm/src/org/oscim/renderer/elements/LineLayer.java
index fa07a32e..a69dd8dd 100644
--- a/vtm/src/org/oscim/renderer/elements/LineLayer.java
+++ b/vtm/src/org/oscim/renderer/elements/LineLayer.java
@@ -170,6 +170,7 @@ public final class LineLayer extends RenderElement {
 
 			// Unit vector to next node
 			a = (float) Math.sqrt(vx * vx + vy * vy);
+
 			vx /= a;
 			vy /= a;
 
@@ -340,6 +341,11 @@ public final class LineLayer extends RenderElement {
 				wx = nextX - x;
 				wy = nextY - y;
 				a = (float) Math.sqrt(wx * wx + wy * wy);
+				// skip too short segmets
+				if (a < 1) {
+					numVertices -= 2;
+					continue;
+				}
 				wx /= a;
 				wy /= a;
 
@@ -548,7 +554,6 @@ public final class LineLayer extends RenderElement {
 		}
 
 		si.used = opos;
-		//curItem = si;
 	}
 
 	@Override