public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
bool isGround = settings.Get <bool>("Ground");
bool showMeteors = settings.Get("Meteors");
bool onlyActive = settings.Get("MeteorsOnlyActive");
bool showLabels = settings.Get("MeteorsLabels");
int activityClassLimit = 4;
if (!showMeteors)
{
return;
}
var meteors = calc.GetCelestialObjects().Where(m => Angle.Separation(map.Center, m.Horizontal) < map.ViewAngle);
if (isGround)
{
meteors = meteors.Where(m => m.Horizontal.Altitude >= 0);
}
if (onlyActive)
{
meteors = meteors.Where(m => m.IsActive);
}
meteors = meteors.Where(m => m.ActivityClass <= activityClassLimit);
var color = map.GetColor("ColorMeteors");
var pen = new Pen(color);
var brush = new SolidBrush(color);
var font = settings.Get <Font>("MeteorsLabelsFont");
foreach (var meteor in meteors)
{
PointF p = map.Project(meteor.Horizontal);
if (!map.IsOutOfScreen(p))
{
g.DrawXCross(pen, p, 5);
map.AddDrawnObject(meteor);
if (showLabels)
{
map.DrawObjectCaption(font, brush, meteor.Name, p, 10);
}
}
}
}
private ICollection <AstroEvent> FindInstants(AstroEventsContext context, Func <Meteor, short> func, Func <Meteor, string> text)
{
var events = new List <AstroEvent>();
int fromYear = new Date(context.From, context.GeoLocation.UtcOffset).Year;
int toYear = new Date(context.To, context.GeoLocation.UtcOffset).Year;
for (int year = fromYear; year <= toYear; year++)
{
double jd0 = Date.JulianDay0(year);
events.AddRange(
meteorsCalc.GetCelestialObjects()
// TODO: limit by setting
.Where(m => m.ActivityClass <= 3)
.Select(m => new AstroEvent(jd0 + func(m), text(m), noExactTime: true))
.Where(e => e.JulianDay >= context.From && e.JulianDay <= context.To));
}
return(events);
}