static void
GetPolygonPoints(std::vector<RasterPoint> &pts,
const AirspacePolygon &airspace,
const RasterPoint pt, unsigned radius)
{
GeoBounds bounds = airspace.GetGeoBounds();
GeoPoint center = bounds.GetCenter();
fixed geo_heigth = bounds.GetGeoHeight();
fixed geo_width = bounds.GetGeoWidth();
fixed geo_size = std::max(geo_heigth, geo_width);
WindowProjection projection;
projection.SetScreenSize({radius * 2, radius * 2});
projection.SetScreenOrigin(pt.x, pt.y);
projection.SetGeoLocation(center);
projection.SetScale(fixed(radius * 2) / geo_size);
projection.SetScreenAngle(Angle::Zero());
projection.UpdateScreenBounds();
const SearchPointVector &border = airspace.GetPoints();
pts.reserve(border.size());
for (auto it = border.begin(), it_end = border.end(); it != it_end; ++it)
pts.push_back(projection.GeoToScreen(it->GetLocation()));
}
static void
DrawPolygon(Canvas &canvas, const AirspacePolygon &airspace,
const RasterPoint pt, unsigned radius)
{
if (IsAncientHardware()) {
canvas.Rectangle(pt.x - radius, pt.y - radius,
pt.x + radius, pt.y + radius);
return;
}
GeoBounds bounds = airspace.GetGeoBounds();
GeoPoint center = bounds.GetCenter();
fixed geo_heigth = GeoPoint(center.longitude, bounds.north).Distance(
GeoPoint(center.longitude, bounds.south));
fixed geo_width = GeoPoint(bounds.west, center.latitude).Distance(
GeoPoint(bounds.east, center.latitude));
fixed geo_size = std::max(geo_heigth, geo_width);
WindowProjection projection;
projection.SetScreenSize(radius * 2, radius * 2);
projection.SetScreenOrigin(pt.x, pt.y);
projection.SetGeoLocation(center);
projection.SetScale(fixed(radius * 2) / geo_size);
projection.SetScreenAngle(Angle::Zero());
projection.UpdateScreenBounds();
const SearchPointVector &border = airspace.GetPoints();
std::vector<RasterPoint> pts;
pts.reserve(border.size());
for (auto it = border.begin(), it_end = border.end(); it != it_end; ++it)
pts.push_back(projection.GeoToScreen(it->get_location()));
canvas.polygon(&pts[0], (unsigned)pts.size());
}
