[GRASS-SVN] r55858 - grass/trunk/lib/vector/Vlib

[svn_grass at osgeo.org]

Author: mmetz
Date: 2013-04-17 14:43:13 -0700 (Wed, 17 Apr 2013)
New Revision: 55858

Modified:
   grass/trunk/lib/vector/Vlib/break_lines.c
Log:
Vlib: reinstate Vect_break_lines() speed-up (sorry for the noise)

Modified: grass/trunk/lib/vector/Vlib/break_lines.c
===================================================================
--- grass/trunk/lib/vector/Vlib/break_lines.c	2013-04-17 21:19:53 UTC (rev 55857)
+++ grass/trunk/lib/vector/Vlib/break_lines.c	2013-04-17 21:43:13 UTC (rev 55858)
@@ -320,9 +320,13 @@
 	    if (!break_a && !break_b)
 		continue;
 
-	    /* DO NOT check intersection of aline with bline only once
-	     * because it can happen that one line is broken, but not 
-	     * the other line, in which case some breaks are not detected */
+	    /* check intersection of aline with bline only once
+	     * if possible */
+	    if (break_a && break_b && 
+		aline > bline && 
+		(!List_ref || b_is_ref)) { 
+		continue; 
+	    } 
 
 	    G_debug(3, "  j = %d bline = %d", j, bline);