Super Noob C++ variable help
- by julian
Ok, I must preface this by stating that I know so so little about c++ and am hoping someone can just help me out...
I have the below code:
string GoogleMapControl::CreatePolyLine(RideItem *ride)
{
std::vector<RideFilePoint> intervalPoints;
ostringstream oss;
int cp;
int intervalTime = 30; // 30 seconds
int zone =ride->zoneRange();
if(zone >= 0)
{
cp = 300; // default cp to 300 watts
}
else
{
cp = ride->zones->getCP(zone);
}
foreach(RideFilePoint* rfp, ride->ride()->dataPoints())
{
intervalPoints.push_back(*rfp);
if((intervalPoints.back().secs - intervalPoints.front().secs) > intervalTime)
{
// find the avg power and color code it and create a polyline...
AvgPower avgPower = for_each(intervalPoints.begin(),
intervalPoints.end(),
AvgPower());
// find the color
QColor color = GetColor(cp,avgPower);
// create the polyline
CreateSubPolyLine(intervalPoints,oss,color);
intervalPoints.clear();
intervalPoints.push_back(*rfp);
}
}
return oss.str();
}
void GoogleMapControl::CreateSubPolyLine(const std::vector<RideFilePoint> &points,
std::ostringstream &oss,
QColor color)
{
oss.precision(6);
QString colorstr = color.name();
oss.setf(ios::fixed,ios::floatfield);
oss << "var polyline = new GPolyline([";
BOOST_FOREACH(RideFilePoint rfp, points)
{
if (ceil(rfp.lat) != 180 && ceil(rfp.lon) != 180)
{
oss << "new GLatLng(" << rfp.lat << "," << rfp.lon << ")," << endl;
}
}
oss << "],\"" << colorstr.toStdString() << "\",4);";
oss << "GEvent.addListener(polyline, 'mouseover', function() {" << endl
<< "var tooltip_text = 'Avg watts:" << avgPower <<" <br> Avg Speed: <br> Color: "<< colorstr.toStdString() <<"';" << endl
<< "var ss={'weight':8};" << endl
<< "this.setStrokeStyle(ss);" << endl
<< "this.overlay = new MapTooltip(this,tooltip_text);" << endl
<< "map.addOverlay(this.overlay);" << endl
<< "});" << endl
<< "GEvent.addListener(polyline, 'mouseout', function() {" << endl
<< "map.removeOverlay(this.overlay);" << endl
<< "var ss={'weight':5};" << endl
<< "this.setStrokeStyle(ss);" << endl
<< "});" << endl;
oss << "map.addOverlay (polyline);" << endl;
}
And I'm trying to get the avgPower from this part:
AvgPower avgPower = for_each(intervalPoints.begin(),
intervalPoints.end(),
AvgPower());
the first part to cary over to the second part:
<< "var tooltip_text = 'Avg watts:" << avgPower <<" <br> Avg Speed: <br> Color: "<< colorstr.toStdString() <<"';" << endl
But of course I haven't the slightest clue how to do it... anyone feeling generous today?
Thanks in advance
