X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibmarklin%2Ftrack.cpp;h=3c2a410fa9d55bf2ab131985a76f7ea4266d4f1c;hb=c47f3fad07af11210c9cbd65d87964794189065e;hp=d2822f61efacbf92d1af2bccb9a531b533dadc37;hpb=6dc18b0e518407bd2a86602bae1e9bbae05da7c8;p=r2c2.git

diff --git a/source/libmarklin/track.cpp b/source/libmarklin/track.cpp
index d2822f6..3c2a410 100644
--- a/source/libmarklin/track.cpp
+++ b/source/libmarklin/track.cpp
@@ -223,7 +223,7 @@ Track *Track::get_link(unsigned i) const
 	return links[i];
 }
 
-int Track::traverse(unsigned i, unsigned path) const
+unsigned Track::traverse(unsigned i, unsigned path) const
 {
 	const vector<Endpoint> &eps = type.get_endpoints();
 	if(i>=eps.size())
@@ -246,7 +246,7 @@ int Track::traverse(unsigned i, unsigned path) const
 				return j;
 	}
 
-	return -1;
+	throw Exception("Track endpoint did not have a counterpart");
 }
 
 Point Track::get_point(unsigned epi, unsigned path, float d) const
@@ -257,6 +257,17 @@ Point Track::get_point(unsigned epi, unsigned path, float d) const
 
 	float x = eps[epi].pos.x;
 	float y = eps[epi].pos.y;
+	float z = 0;
+	float slope_norm = 0;
+	if(eps.size()==2)
+	{
+		slope_norm = slope/type.get_total_length();
+		if(epi==1)
+		{
+			z = slope;
+			slope_norm = -slope_norm;
+		}
+	}
 
 	const vector<TrackPart> &parts = type.get_parts();
 	const TrackPart *last_part = 0;
@@ -282,18 +293,20 @@ Point Track::get_point(unsigned epi, unsigned path, float d) const
 						plen *= abs(i->radius);
 					if(d<plen)
 					{
+						z += d*slope_norm;
 						if(j==1)
 							d = plen-d;
 						Point p = i->get_point(d);
 						float c = cos(rot);
 						float s = sin(rot);
-						return Point(pos.x+c*p.x-s*p.y, pos.y+c*p.y+s*p.x);
+						return Point(pos.x+c*p.x-s*p.y, pos.y+c*p.y+s*p.x, pos.z+z);
 					}
 					else if(part_eps.size()>1)
 					{
 						d -= plen;
 						x = part_eps[1-j].pos.x;
 						y = part_eps[1-j].pos.y;
+						z += plen*slope_norm;
 						last_part = &*i;
 						i = parts.begin();
 						break;