void TrackLayer::extractLayer()
{
DrawingLayer* extL = new DrawingLayer(tr("Extract - %1").arg(name()));
extL->setUploadable(false);
TrackNode* P;
QList<TrackNode*> PL;
const qreal coordPer10M = (double(COORD_MAX) * 2 / 40080000) * 2;
for (int i=0; i < size(); i++) {
if (TrackSegment* S = dynamic_cast<TrackSegment*>(get(i))) {
if (S->size() < 2)
continue;
// Cope with walking tracks
qreal konstant = coordPer10M;
qreal meanSpeed = S->distance() / S->duration() * 3600;
if (meanSpeed < 10.)
konstant /= 3.;
PL.clear();
P = g_backend.allocTrackNode(extL, S->getNode(0)->position() );
P->setTime(S->getNode(0)->time());
P->setElevation(S->getNode(0)->elevation());
P->setSpeed(S->getNode(0)->speed());
PL.append(P);
int startP = 0;
P = g_backend.allocTrackNode(extL, S->getNode(1)->position() );
P->setTime(S->getNode(1)->time());
P->setElevation(S->getNode(1)->elevation());
P->setSpeed(S->getNode(1)->speed());
PL.append(P);
int endP = 1;
for (int j=2; j < S->size(); j++) {
P = g_backend.allocTrackNode(extL, S->getNode(j)->position() );
P->setTime(S->getNode(j)->time());
P->setElevation(S->getNode(j)->elevation());
P->setSpeed(S->getNode(j)->speed());
PL.append(P);
endP = PL.size()-1;
LineF l(PL[startP]->position(), PL[endP]->position());
for (int k=startP+1; k < endP; k++) {
qreal d = l.distance(PL[k]->position());
if (d < konstant) {
Node* P = PL[k];
PL.removeAt(k);
g_backend.deallocFeature(extL, P);
endP--;
} else
startP = k;
}
}
Way* R = g_backend.allocWay(extL);
R->setLastUpdated(Feature::OSMServer);
extL->add(R);
for (int i=0; i < PL.size(); i++) {
extL->add(PL[i]);
R->add(PL[i]);
}
}
}
p->theDocument->add(extL);
}
TrackNode * TrackNode::fromGPX(Document* d, Layer* L, QXmlStreamReader& stream)
{
qreal Lat = stream.attributes().value("lat").toString().toDouble();
qreal Lon = stream.attributes().value("lon").toString().toDouble();
QString sid = (stream.attributes().hasAttribute("id") ? stream.attributes().value("id").toString() : stream.attributes().value("xml:id").toString());
IFeature::FId id(IFeature::Point, sid.toLongLong());
TrackNode* Pt = CAST_TRACKNODE(d->getFeature(id));
if (!Pt) {
Pt = g_backend.allocTrackNode(L, Coord(Lon,Lat));
Pt->setId(id);
Pt->setLastUpdated(Feature::Log);
L->add(Pt);
} else {
Pt->setPosition(Coord(Lon,Lat));
if (Pt->lastUpdated() == Feature::NotYetDownloaded)
Pt->setLastUpdated(Feature::OSMServer);
}
if (stream.name() == "wpt")
Pt->setTag("_waypoint_", "yes");
QDateTime time = QDateTime::currentDateTime();
stream.readNext();
while(!stream.atEnd() && !stream.isEndElement()) {
if (stream.name() == "time") {
stream.readNext();
QString dtm = stream.text().toString();
time = QDateTime::fromString(dtm.left(19), Qt::ISODate);
stream.readNext();
} else if (stream.name() == "ele") {
stream.readNext();
Pt->setElevation(stream.text().toString().toFloat());
stream.readNext();
} else if (stream.name() == "speed") {
stream.readNext();
Pt->setSpeed(stream.text().toString().toFloat());
stream.readNext();
} else if (stream.name() == "name") {
stream.readNext();
Pt->setTag("name", stream.text().toString());
stream.readNext();
} else if (stream.name() == "cmt") {
stream.readNext();
Pt->setTag("_comment_", stream.text().toString());
stream.readNext();
} else if (stream.name() == "desc") {
stream.readNext();
Pt->setTag("_description_", stream.text().toString());
stream.readNext();
}
else if (stream.name() == "cmt")
{
stream.readNext();
Pt->setTag("_comment_", stream.text().toString());
stream.readNext();
}
else if (stream.name() == "extensions") // for OpenStreetBugs
{
QString str = stream.readElementText(QXmlStreamReader::IncludeChildElements);
QDomDocument doc;
doc.setContent(str);
QDomNodeList li = doc.elementsByTagName("id");
if (li.size()) {
QString id = li.at(0).toElement().text();
Pt->setId(IFeature::FId(IFeature::Point | IFeature::Special, id.toLongLong()));
Pt->setTag("_special_", "yes"); // Assumed to be OpenstreetBugs as they don't use their own namesoace
Pt->setSpecial(true);
}
}
stream.readNext();
}
Pt->setTime(time);
return Pt;
}