[mkgmap-dev] [Patch] Improve MapMaker.roadsAreJoined()

Sat Mar 3 05:56:41 GMT 2012

Hi,

roadsAreJoined() tests all points of one MapLine against all points of
another MapLine instance.
It should first check the previously calculated bounding boxes to eliminate
many unsuccesfull loops.


Gerd

Index: src/uk/me/parabola/mkgmap/main/MapMaker.java
===================================================================

--- src/uk/me/parabola/mkgmap/main/MapMaker.java	(revision 2232)
+++ src/uk/me/parabola/mkgmap/main/MapMaker.java	(working copy)
@@ -196,6 +196,8 @@
 	private boolean roadsAreJoined(MapLine r1, MapLine r2) {
 
 		if(r1 != r2) {
+			if (r1.getBounds().intersects(r2.getBounds()) == false)
+				return false;
 			for(Coord c1 : r1.getPoints()) {
 				for(Coord c2 : r2.getPoints()) {
 					if(c1 == c2 || c1.equals(c2)) 

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