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void WGoogleMapEx::addWindIndicator(const WGoogleMap::Coordinate &pos, const double rotationDeg, const double speed,
const WColor &color, const float opacity, const std::string &tooltip)
{
const double polelength = 60000;
const double len10kn = 10000;
const double dist10kn = 10000;
point_ll_deg posi(longitude<>(pos.longitude()), latitude<>(pos.latitude()));
std::vector<WGoogleMap::Coordinate> arrowpnts;
// tip
arrowpnts.push_back(WGoogleMap::Coordinate(posi.lat(), posi.lon()));
// tail
point_ll_deg pnt;
point_at_distance(posi, polelength, 2.0 * M_PI * rotationDeg / 360.0, average_earth_radius, pnt);
arrowpnts.push_back(WGoogleMap::Coordinate(pnt.lat(), pnt.lon()));
for(size_t i=0; i<speed; i+=10)
{
const bool full = speed > (i + 5);
point_at_distance(posi, polelength - i * dist10kn / 10.0, 2.0 * M_PI * rotationDeg / 360.0, average_earth_radius, pnt);
const point_ll_deg pnt1 = pnt;
arrowpnts.push_back(WGoogleMap::Coordinate(pnt1.lat(), pnt1.lon()));
point_at_distance(pnt1, full ? len10kn : len10kn / 2.0, 2.0 * M_PI * (rotationDeg - 45) / 360.0, average_earth_radius, pnt);
arrowpnts.push_back(WGoogleMap::Coordinate(pnt.lat(), pnt.lon()));
arrowpnts.push_back(WGoogleMap::Coordinate(pnt1.lat(), pnt1.lon()));
}
addPolyline(arrowpnts, color, 2, opacity);
}
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void WGoogleMapEx::addArrow(const WGoogleMap::Coordinate &pos, const double rotationDeg,
const WColor &color, const float opacity, const std::string &tooltip)
{
/*
std::ostringstream strm;
strm << "var pos = new google.maps.LatLng(" << pos.latitude() << ", " << pos.longitude() << "); "
<< "var arrow = new BDCCArrow(pos, " << rotationDeg << ", \"" << color.cssText() << "\", "
<< opacity << ", \"" << tooltip << "\"); "
<< jsRef() << ".map.addOverlay(arrow);";
doGmJavaScript(strm.str(), true);
*/
// second attempt
point_ll_deg posi(longitude<>(pos.longitude()), latitude<>(pos.latitude()));
// std::cout << "Arrow at " << boost::geometry::make_wkt(posi) << std::endl;
std::vector<WGoogleMap::Coordinate> arrowpnts;
// tail
point_ll_deg pnt;
point_at_distance(posi, 20000, 2.0 * M_PI * rotationDeg / 360.0, average_earth_radius, pnt);
arrowpnts.push_back(WGoogleMap::Coordinate(pnt.lat(), pnt.lon()));
// tip
arrowpnts.push_back(WGoogleMap::Coordinate(posi.lat(), posi.lon()));
// right
point_at_distance(posi, 5000, 2.0 * M_PI * (rotationDeg + 30) / 360.0, average_earth_radius, pnt);
arrowpnts.push_back(WGoogleMap::Coordinate(pnt.lat(), pnt.lon()));
// left
point_at_distance(posi, 5000, 2.0 * M_PI * (rotationDeg - 30) / 360.0, average_earth_radius, pnt);
arrowpnts.push_back(WGoogleMap::Coordinate(pnt.lat(), pnt.lon()));
// tip
arrowpnts.push_back(WGoogleMap::Coordinate(posi.lat(), posi.lon()));
addPolyline(arrowpnts, color, 2, opacity);
}
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void WGoogleMapEx::addMarker(const WGoogleMap::Coordinate &pos, const string &imgUrl)
{
std::ostringstream strm;
strm << "var icon = new google.maps.Icon(G_DEFAULT_ICON);"
<< "icon.image = \"" << imgUrl << "\";"
<< "var marker = new google.maps.Marker(new google.maps.LatLng("
<< pos.latitude() << ", " << pos.longitude() << "), icon);"
<< jsRef() << ".map.addOverlay(marker);";
doGmJavaScript(strm.str(), false);
}
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void WGoogleMapEx::zoomWindow(const WGoogleMap::Coordinate& topLeft, const WGoogleMap::Coordinate& rightBottom)
{
WGoogleMap::Coordinate topLeftC = topLeft;
WGoogleMap::Coordinate rightBottomC = rightBottom;
const WGoogleMap::Coordinate center
((topLeftC.latitude() + rightBottomC.latitude()) / 2.0,
(topLeftC.longitude() + rightBottomC.longitude()) / 2.0);
topLeftC = WGoogleMap::Coordinate(std::min(topLeftC.latitude(), rightBottomC.latitude()),
std::min(topLeftC.longitude(), rightBottomC.longitude()));
rightBottomC = WGoogleMap::Coordinate(std::max(topLeftC.latitude(), rightBottomC.latitude()),
std::max(topLeftC.longitude(), rightBottomC.longitude()));
std::stringstream strm;
strm << "var bbox = new google.maps.LatLngBounds(new google.maps.LatLng("
<< topLeftC.latitude() << ", " << topLeftC.longitude() << "), "
<< "new google.maps.LatLng("
<< rightBottomC.latitude() << ", " << rightBottomC.longitude() << "));"
<< "var zooml = " << jsRef() << ".map.getBoundsZoomLevel(bbox);"
<< jsRef() << ".map.setCenter(new google.maps.LatLng("
<< center.latitude() << ", " << center.longitude() << "), zooml);";
doGmJavaScript(strm.str(), true);
}
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void WGoogleMapEx::addCircle(const WGoogleMap::Coordinate &pos, const double radiusKm,
const WColor &strokeColor, const size_t strokeWeightPx, const float strokeOpacity)
{
/*
std::ostringstream strm;
strm << "var pos = new google.maps.LatLng(" << pos.latitude() << ", " << pos.longitude() << "); "
<< "var circle = new BDCCCircle(pos, " << radiusKm << ", \"" << strokeColor.cssText() << "\", "
<< strokeWeightPx << ", " << strokeOpacity << ", " << std::boolalpha << doFill
<< ", \"" << fillColor.cssText() << "\", " << fillOpacity << ", \"" << tooltip << "\"); "
<< jsRef() << ".map.addOverlay(circle);";
doGmJavaScript(strm.str(), true);
*/
// workaround as long as we have the problem with the loading order of the javascript -> works only for one map per page
static const double average_earth_radius = 6372795.0;
point_ll_deg posi(longitude<>(pos.longitude()), latitude<>(pos.latitude()));
std::cout << "Circle around " << boost::geometry::make_wkt(posi) << " radius " << radiusKm << " km" << std::endl;
std::vector<WGoogleMap::Coordinate> circlepnts;
const size_t steps = 50;
for(size_t i=0; i<steps; ++i)
{
point_ll_deg perifer;
point_at_distance(posi, radiusKm * 1000, 2 * M_PI * i / steps, average_earth_radius, perifer);
circlepnts.push_back(WGoogleMap::Coordinate(perifer.lat(), perifer.lon()));
}
circlepnts.push_back(circlepnts.front());
assert(circlepnts.size() == steps + 1);
addPolyline(circlepnts, strokeColor, strokeWeightPx, strokeOpacity);
/*
// second workaround: draw direcly here without using js lib
std::ostringstream strm;
strm << "var svgNS = \"http://www.w3.org/2000/svg\"; "
<< "var circle = document.createElementNS(svgNS, \"svg\"); "
<< "var center = " << jsRef() << ".map.fromLatLngToDivPixel(new google.maps.LatLng(" << pos.latitude() << ", " << pos.longitude() << ")); "
<< "var sz = " << jsRef() << ".map.getSize(); "
<< "var bnds = " << jsRef() << ".map.getBounds(); "
<< "var pxDiag = Math.sqrt((sz.width * sz.width) + (sz.height * sz.height)); "
<< "var mDiagKm = bnds.getNorthEast().distanceFrom(bnds.getSouthWest()) / 1000.0; "
<< "var pxPerKm = pxDiag/mDiagKm; "
<< "var w2 = " << strokeWeightPx << "/2.0; "
<< "var rPx = Math.round((" << radiusKm << " * pxPerKm) - w2); "
// << "var rdrh = circle.suspendRedraw(10000); "
// << "circle.setAttribute(\"visibility\",\"hidden\"); "
<< "if(rPx > 0 && rPx < 3000) "
<< "{"
<< " var ne = " << jsRef() << ".map.fromLatLngToDivPixel(bnds.getNorthEast()); "
<< " var sw = " << jsRef() << ".map.fromLatLngToDivPixel(bnds.getSouthWest()); "
<< " var wd = ne.x - sw.x; "
<< " var ht = sw.y - ne.y; "
<< " var l = sw.x; "
<< " var t = ne.y; "
<< " circle.setAttribute(\"width\", wd); "
<< " circle.setAttribute(\"height\", ht); "
<< " circle.setAttribute(\"style\", \"position:absolute; top:\"+ t + \"px; left:\" + l + \"px\"); "
<< " var cx = center.x-l; "
<< " var cy = center.y-t; "
<< " circle.setAttribute(\"overflow\", \"hidden\"); "
<< " circle.setAttribute(\"r\",rPx); "
<< " circle.setAttribute(\"cx\",cx); "
<< " circle.setAttribute(\"cy\",cy); "
<< " circle.setAttribute(\"visibility\",\"visible\"); "
<< "}"
<< jsRef() << ".map.getPane(G_MAP_MAP_PANE).appendChild(circle); ";
// << "circle.unsuspendRedraw(rdrh); "
// << "circle.forceRedraw(); ";
doGmJavaScript(strm.str(), true);
std::ofstream ofs("/tmp/gmcircle.js");
ofs << strm.str();
*/
}
void googleMapClicked(WGoogleMap::Coordinate c) {
std::cerr << "Clicked at coordinate ("
<< c.latitude() << "," << c.longitude() << ")";
}
