X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibmarklin%2Ftrack.cpp;h=7c08b6c46766c0d3e116c775d2f9f802e5c81653;hb=d27edb207810f0b4e44be8c3632d421faa5fed80;hp=5843e22f017953474588c956ca73798fcbf4b4be;hpb=651698847d5293cfb15b6fb23a394701388c0151;p=r2c2.git

diff --git a/source/libmarklin/track.cpp b/source/libmarklin/track.cpp
index 5843e22..7c08b6c 100644
--- a/source/libmarklin/track.cpp
+++ b/source/libmarklin/track.cpp
@@ -31,6 +31,8 @@ Track::Track(Layout &l, const TrackType &t):
 
 	if(layout.has_driver())
 		layout.get_driver().signal_turnout.connect(sigc::mem_fun(this, &Track::turnout_event));
+
+	for(unsigned paths = type.get_paths(); !(paths&1); ++active_path, paths>>=1) ;
 }
 
 Track::~Track()
@@ -55,7 +57,8 @@ void Track::set_rotation(float r)
 
 void Track::set_slope(float s)
 {
-	if(links.size()!=2) return;
+	if(links.size()!=2)
+		return;
 
 	slope = s;
 }
@@ -286,79 +289,30 @@ unsigned Track::traverse(unsigned i, unsigned path) const
 	throw Exception("Track endpoint did not have a counterpart");
 }
 
-Point Track::get_point(unsigned epi, unsigned path, float d) const
+TrackPoint Track::get_point(unsigned epi, unsigned path, float d) const
 {
-	const vector<Endpoint> &eps = type.get_endpoints();
-	if(epi>=eps.size())
-		throw InvalidParameterValue("Endpoint index out of range");
+	TrackPoint p = type.get_point(epi, path, d);
+	float c = cos(rot);
+	float s = sin(rot);
 
-	float x = eps[epi].pos.x;
-	float y = eps[epi].pos.y;
-	float z = 0;
-	float slope_norm = 0;
-	if(eps.size()==2)
+	p.pos = Point(pos.x+c*p.pos.x-s*p.pos.y, pos.y+s*p.pos.x+c*p.pos.y, 0);
+	if(type.get_endpoints().size()==2)
 	{
-		slope_norm = slope/type.get_total_length();
-		if(epi==1)
+		float len = type.get_path_length(path);
+		float grade = slope/len;
+		if(epi==0)
 		{
-			z = slope;
-			slope_norm = -slope_norm;
+			p.pos.z = pos.z+grade*d;
+			p.grade = grade;
 		}
-	}
-
-	const vector<TrackPart> &parts = type.get_parts();
-	const TrackPart *last_part = 0;
-	while(1)
-	{
-		for(vector<TrackPart>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+		else
 		{
-			if((eps[epi].paths&(1<<path)) && i->path!=path)
-				continue;
-			if(&*i==last_part)
-				continue;
-
-			vector<Endpoint> part_eps;
-			i->collect_endpoints(part_eps);
-			for(unsigned j=0; j<part_eps.size(); ++j)
-			{
-				float dx = part_eps[j].pos.x-x;
-				float dy = part_eps[j].pos.y-y;
-				if(dx*dx+dy*dy<1e-6)
-				{
-					float plen = i->length;
-					if(i->radius)
-						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, 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;
-					}
-					else
-						return pos;
-				}
-			}
+			p.pos.z = pos.z+slope-grade*d;
+			p.grade = -grade;
 		}
-
-		if(!last_part)
-			throw Exception("Internal error (Endpoint does not match any part)");
-		else
-			return pos;
 	}
+
+	return p;
 }
 
 void Track::save(list<DataFile::Statement> &st) const