public override void Render(IMapContext map)
{
if (!settings.Get <bool>("DeepSky"))
{
return;
}
var allDeepSkies = deepSkyCalc.DeepSkies;
bool isGround = settings.Get <bool>("Ground");
brushCaption = new SolidBrush(map.GetColor("ColorDeepSkyLabel"));
int alpha = Math.Max(0, Math.Min((int)(k * map.ViewAngle + b), 255));
Color colorOutline = map.GetColor("ColorDeepSkyOutline");
penOutlineSolid = new Pen(Color.FromArgb(alpha, colorOutline));
penOutlineDashed = new Pen(Color.FromArgb(alpha, colorOutline));
penOutlineDashed.DashStyle = DashStyle.Dash;
var deepSkies = allDeepSkies.Where(ds => !ds.Status.IsEmpty() && Angle.Separation(map.Center, ds.Horizontal) < map.ViewAngle);
if (isGround)
{
deepSkies = deepSkies.Where(ds => ds.Horizontal.Altitude + ds.Semidiameter / 3600 > 0);
}
foreach (var ds in deepSkies)
{
drawingHandlers[ds.Status].Draw(map, settings, ds);
}
}
public override void Render(IMapContext map)
{
brushLabel = new SolidBrush(map.GetColor("ColorSolarSystemLabel"));
var bodies = planetsCalc.Planets
.Where(p => p.Number != Planet.EARTH)
.Cast <SolarSystemObject>()
.Concat(new[] { sun })
.OrderByDescending(body => body.Ecliptical.Distance)
.ToArray();
foreach (var body in bodies)
{
if (body is Planet planet)
{
RenderPlanet(map, planet);
}
else
{
RenderSun(map);
}
}
RenderMoon(map);
if (map.Schema == ColorSchema.Day)
{
DrawHalo(map);
}
RenderEarthShadow(map);
}
/// <summary>
/// Renders constellation borders on the map
/// </summary>
private void RenderBorders(IMapContext map)
{
PointF p1, p2;
CrdsHorizontal h1, h2;
var borders = constellationsCalc.ConstBorders;
bool isGround = settings.Get <bool>("Ground");
double coeff = map.DiagonalCoefficient();
Pen penBorder = new Pen(map.GetColor("ColorConstBorders"));
foreach (var block in borders)
{
for (int i = 0; i < block.Count - 1; i++)
{
h1 = block.ElementAt(i).Horizontal;
h2 = block.ElementAt(i + 1).Horizontal;
if ((!isGround || h1.Altitude >= 0 || h2.Altitude >= 0) &&
Angle.Separation(map.Center, h1) < 90 * coeff &&
Angle.Separation(map.Center, h2) < 90 * coeff)
{
p1 = map.Project(h1);
p2 = map.Project(h2);
var points = map.SegmentScreenIntersection(p1, p2);
if (points.Length == 2)
{
map.Graphics.DrawLine(penBorder, points[0], points[1]);
}
}
}
}
}
/// <summary>
/// Does the rendering logic
/// </summary>
/// <param name="map">Map instance</param>
public override void Render(IMapContext map)
{
if (IsMeasureToolOn && map.MousePosition != null)
{
double coeff = map.DiagonalCoefficient();
List <PointF> points = new List <PointF>();
for (int f = 0; f <= 10; f++)
{
CrdsHorizontal h = Angle.Intermediate(map.MousePosition, MeasureOrigin, f / 10.0);
points.Add(map.Project(h));
if (Angle.Separation(h, map.Center) > map.ViewAngle * coeff)
{
break;
}
}
if (points.Count > 1)
{
map.Graphics.DrawCurve(new Pen(map.GetColor(Color.White)), points.ToArray());
double angle = Angle.Separation(map.MousePosition, MeasureOrigin);
PointF p = map.Project(map.MousePosition);
map.Graphics.DrawString(Formatters.MeasuredAngle.Format(angle), fontAngleValue, new SolidBrush(map.GetColor(Color.White)), p.X + 5, p.Y + 5);
}
}
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
bool isGround = settings.Get <bool>("Ground");
bool showNovae = settings.Get("Stars") && settings.Get <bool>("Novae");
if (!showNovae)
{
return;
}
var novae = calc.Novae.Where(m => Angle.Separation(map.Center, m.Horizontal) < map.ViewAngle);
if (isGround)
{
novae = novae.Where(m => m.Horizontal.Altitude >= 0);
}
var font = SystemFonts.DefaultFont;
var brush = new SolidBrush(map.Schema == ColorSchema.White ? Color.Black : Color.White);
foreach (var star in novae)
{
float diam = map.GetPointSize(star.Mag);
if ((int)diam > 0)
{
PointF p = map.Project(star.Horizontal);
if (!map.IsOutOfScreen(p))
{
if (map.Schema == ColorSchema.White)
{
g.FillEllipse(Brushes.White, p.X - diam / 2 - 1, p.Y - diam / 2 - 1, diam + 2, diam + 2);
}
g.FillEllipse(brush, p.X - diam / 2, p.Y - diam / 2, diam, diam);
map.AddDrawnObject(star);
}
}
}
if (settings.Get <bool>("StarsLabels") && settings.Get <bool>("NovaeLabels") && map.ViewAngle <= limitAllNames)
{
brushStarNames = new SolidBrush(map.GetColor("ColorStarsLabels"));
foreach (var nova in novae)
{
float diam = map.GetPointSize(nova.Mag);
if ((int)diam > 0)
{
PointF p = map.Project(nova.Horizontal);
if (!map.IsOutOfScreen(p))
{
DrawStarName(map, p, nova, diam);
}
}
}
}
}
public override void Render(IMapContext map)
{
peFrom1950 = Precession.ElementsFK5(Date.EPOCH_B1950, map.JulianDay);
peTo1950 = Precession.ElementsFK5(map.JulianDay, Date.EPOCH_B1950);
Color colorGridEquatorial = map.GetColor("ColorEquatorialGrid");
Color colorGridHorizontal = map.GetColor("ColorHorizontalGrid");
Color colorLineEcliptic = map.GetColor("ColorEcliptic");
Color colorLineGalactic = map.GetColor("ColorGalacticEquator");
Color colorLineMeridian = map.GetColor("ColorMeridian");
penGridEquatorial.Color = colorGridEquatorial;
penGridHorizontal.Color = colorGridHorizontal;
penLineEcliptic.Color = colorLineEcliptic;
penLineGalactic.Color = colorLineGalactic;
penLineMeridian.Color = colorLineMeridian;
if (settings.Get <bool>("GalacticEquator"))
{
DrawGrid(map, penLineGalactic, LineGalactic);
}
if (settings.Get <bool>("EquatorialGrid"))
{
DrawGrid(map, penGridEquatorial, GridEquatorial);
DrawEquatorialPoles(map);
}
if (settings.Get <bool>("HorizontalGrid"))
{
DrawGrid(map, penGridHorizontal, GridHorizontal);
DrawHorizontalPoles(map);
}
if (settings.Get <bool>("EclipticLine"))
{
DrawGrid(map, penLineEcliptic, LineEcliptic);
DrawEquinoxLabels(map);
DrawLunarNodes(map);
}
if (settings.Get <bool>("MeridianLine"))
{
DrawGrid(map, penLineMeridian, LineMeridian);
}
}
public override void Render(IMapContext map)
{
if (ascom.IsConnected)
{
try
{
var hor = ascom.Position.ToHorizontal(map.GeoLocation, map.SiderealTime);
var p = map.Project(hor);
var color = map.GetColor("TelescopeMarkerColor");
Pen marker = new Pen(color, 2);
marker.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
float r = 16;
float a0 = (float)(Math.PI / 4);
for (double a = 0; a < 2 * Math.PI; a += Math.PI / 2)
{
float x0 = p.X + (r / 2) * (float)Math.Cos(a + a0);
float y0 = p.Y + (r / 2) * (float)Math.Sin(a + a0);
float x1 = p.X + r * (float)Math.Cos(a + a0);
float y1 = p.Y + r * (float)Math.Sin(a + a0);
map.Graphics.DrawLine(marker, new PointF(x0, y0), new PointF(x1, y1));
}
map.Graphics.DrawEllipse(marker, p.X - 16, p.Y - 16, 32, 32);
if (settings.Get("TelescopeMarkerLabel"))
{
var font = settings.Get <Font>("TelescopeMarkerFont");
var brush = new SolidBrush(map.GetColor("TelescopeMarkerColor"));
map.Graphics.DrawString(ascom.TelescopeName, font, brush, new PointF(p.X + 16 * 0.8f, p.Y + 16 * 0.8f));
}
}
catch (Exception ex)
{
Trace.TraceError($"Rendering error in {nameof(TelescopeRenderer)}: {ex}");
}
}
}
private Color GetColor(IMapContext map, char spClass)
{
if (map.Schema == ColorSchema.White)
{
return(Color.Black);
}
if (settings.Get("StarsColors"))
{
switch (spClass)
{
case 'O':
case 'W':
starColor = Color.LightBlue;
break;
case 'B':
starColor = Color.LightCyan;
break;
case 'A':
starColor = Color.White;
break;
case 'F':
starColor = Color.LightYellow;
break;
case 'G':
starColor = Color.Yellow;
break;
case 'K':
starColor = Color.Orange;
break;
case 'M':
starColor = Color.OrangeRed;
break;
default:
starColor = Color.White;
break;
}
}
else
{
starColor = Color.White;
}
return(map.GetColor(starColor, Color.Transparent));
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
bool isGround = settings.Get <bool>("Ground");
bool isLabels = settings.Get <bool>("StarsLabels");
Brush brushNames = new SolidBrush(map.GetColor("ColorStarsLabels"));
if (map.MagLimit > 8 && settings.Get <bool>("Stars") && settings.Get <bool>("Tycho2"))
{
Brush brushStar = GetColor(map);
PrecessionalElements pe = Precession.ElementsFK5(map.JulianDay, Date.EPOCH_J2000);
var eq0 = map.Center.ToEquatorial(map.GeoLocation, map.SiderealTime);
CrdsEquatorial eq = Precession.GetEquatorialCoordinates(eq0, pe);
SkyContext context = new SkyContext(map.JulianDay, map.GeoLocation);
tycho2.LockedStar = map.LockedObject as Tycho2Star;
tycho2.SelectedStar = map.SelectedObject as Tycho2Star;
var stars = tycho2.GetStars(context, eq, map.ViewAngle, m => MagFilter(map, m));
foreach (var star in stars)
{
if (!isGround || star.Horizontal.Altitude > 0)
{
PointF p = map.Project(star.Horizontal);
if (!map.IsOutOfScreen(p))
{
float size = map.GetPointSize(star.Magnitude);
if (map.Schema == ColorSchema.White)
{
g.FillEllipse(Brushes.White, p.X - size / 2 - 1, p.Y - size / 2 - 1, size + 2, size + 2);
}
g.FillEllipse(brushStar, p.X - size / 2, p.Y - size / 2, size, size);
if (isLabels && map.ViewAngle < 1 && size > 3)
{
map.DrawObjectCaption(fontNames, brushNames, star.ToString(), p, size);
}
map.AddDrawnObject(star);
}
}
}
}
}
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);
}
}
}
}
/// <summary>
/// Renders constellations labels on the map
/// </summary>
private void RenderConstLabels(IMapContext map)
{
var constellations = constellationsCalc.ConstLabels;
bool isGround = settings.Get <bool>("Ground");
double coeff = map.DiagonalCoefficient();
StringFormat format = new StringFormat();
format.LineAlignment = StringAlignment.Center;
format.Alignment = StringAlignment.Center;
int fontSize = Math.Min((int)(800 / map.ViewAngle), 32);
Font font = new Font(FontFamily.GenericSansSerif, fontSize);
LabelType labelType = settings.Get <LabelType>("ConstLabelsType");
Brush brushLabel = new SolidBrush(map.GetColor("ColorConstLabels"));
foreach (var c in constellations)
{
var h = c.Horizontal;
if ((!isGround || h.Altitude > 0) && Angle.Separation(map.Center, h) < map.ViewAngle * coeff)
{
var p = map.Project(h);
var constellation = GetConstellation(c.Code);
string label;
switch (labelType)
{
case LabelType.InternationalCode:
label = constellation.Code;
break;
case LabelType.LocalName:
label = constellation.LocalName;
break;
case LabelType.InternationalName:
default:
label = constellation.LatinName;
break;
}
map.Graphics.DrawString(label, font, brushLabel, p, format);
}
}
}
public override void Render(IMapContext map)
{
if (settings.Get <bool>("MilkyWay"))
{
int alpha = Math.Min((int)(k * map.ViewAngle + b), 255);
if (alpha > maxAlpha)
{
var smoothing = map.Graphics.SmoothingMode;
map.Graphics.SmoothingMode = SmoothingMode.None;
if (map.Schema == ColorSchema.Day)
{
alpha = (int)(alpha * (1 - map.DayLightFactor));
}
for (int i = 0; i < milkyWayCalc.MilkyWay.Count(); i++)
{
var points = new List <PointF>();
for (int j = 0; j < milkyWayCalc.MilkyWay[i].Count; j++)
{
var h = milkyWayCalc.MilkyWay[i][j].Horizontal;
double ad = Angle.Separation(h, map.Center);
// 130 degrees value limit has been chosen experimentally
if (ad < 130)
{
points.Add(map.Project(h));
}
}
if (points.Count >= 3)
{
Color color = Color.FromArgb(alpha, map.GetColor("ColorMilkyWay"));
map.Graphics.FillPolygon(new SolidBrush(color), points.ToArray(), FillMode.Winding);
}
}
map.Graphics.SmoothingMode = smoothing;
}
}
}
private Brush GetPlanetColor(IMapContext map, int planet)
{
Color color = Color.Empty;
switch (planet)
{
case 1:
color = Color.FromArgb(132, 131, 131);
break;
case 2:
color = Color.FromArgb(228, 189, 127);
break;
case 4:
color = Color.FromArgb(183, 98, 71);
break;
case 5:
color = Color.FromArgb(166, 160, 149);
break;
case 6:
color = Color.FromArgb(207, 192, 162);
break;
case 7:
color = Color.FromArgb(155, 202, 209);
break;
case 8:
color = Color.FromArgb(54, 79, 167);
break;
default:
color = Color.White;
break;
}
return(new SolidBrush(map.GetColor(color)));
}
private void RenderJupiterMoons(IMapContext map, Planet jupiter, IEnumerable <JupiterMoon> moons)
{
bool isGround = settings.Get <bool>("Ground");
bool useTextures = settings.Get <bool>("UseTextures");
double coeff = map.DiagonalCoefficient();
foreach (var moon in moons)
{
double ad = Angle.Separation(moon.Horizontal, map.Center);
if ((!isGround || moon.Horizontal.Altitude + moon.Semidiameter / 3600 > 0) &&
ad < coeff * map.ViewAngle + moon.Semidiameter / 3600)
{
PointF p = map.Project(moon.Horizontal);
PointF pJupiter = map.Project(jupiter.Horizontal);
float size = map.GetPointSize(moon.Magnitude, 2);
float diam = map.GetDiskSize(moon.Semidiameter);
// diameter is to small to render moon disk,
// but point size caclulated from magnitude is enough to be drawn
if (size > diam && (int)size > 0)
{
// do not draw moon point if eclipsed
if (!moon.IsEclipsedByJupiter)
{
// satellite is distant enough from the Jupiter
// but too small to be drawn as disk
if (map.DistanceBetweenPoints(p, pJupiter) >= 5)
{
map.Graphics.TranslateTransform(p.X, p.Y);
map.Graphics.FillEllipse(new SolidBrush(map.GetColor(Color.Wheat)), -size / 2, -size / 2, size, size);
map.Graphics.ResetTransform();
map.DrawObjectCaption(fontLabel, brushLabel, moon.Name, p, 2);
map.AddDrawnObject(moon);
}
}
}
// moon should be rendered as disk
else if (diam >= size && (int)diam > 0)
{
float rotation = map.GetRotationTowardsNorth(jupiter.Equatorial) + 360 - (float)jupiter.Appearance.P;
map.Graphics.TranslateTransform(p.X, p.Y);
map.Graphics.RotateTransform(rotation);
if (useTextures)
{
Image texture = imagesCache.RequestImage($"5-{moon.Number}", new PlanetTextureToken($"5-{moon.Number}", moon.CM, jupiter.Appearance.D), PlanetTextureProvider, map.Redraw);
if (texture != null)
{
map.DrawImage(texture, -diam / 2 * 1.01f, -diam / 2 * 1.01f, diam * 1.01f, diam * 1.01f);
DrawVolume(map, diam, 0);
}
else
{
map.Graphics.FillEllipse(new SolidBrush(map.GetColor(Color.Wheat)), -diam / 2, -diam / 2, diam, diam);
}
}
else
{
map.Graphics.FillEllipse(new SolidBrush(map.GetColor(Color.Wheat)), -diam / 2, -diam / 2, diam, diam);
if (diam > 2)
{
map.Graphics.DrawEllipse(new Pen(map.GetSkyColor()), -diam / 2, -diam / 2, diam, diam);
}
}
map.Graphics.ResetTransform();
// render another moon shadows on the moon
RenderJupiterMoonShadow(map, moon, moon.RectangularS);
// render Jupiter shadow on the moon
if (moon.IsEclipsedByJupiter)
{
RenderJupiterShadow(map, moon);
}
map.DrawObjectCaption(fontLabel, brushLabel, moon.Name, p, diam);
map.AddDrawnObject(moon);
}
}
}
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
var allComets = cometsCalc.Comets;
bool isGround = settings.Get("Ground");
bool useTextures = settings.Get("PlanetsTextures");
bool drawComets = settings.Get("Comets");
bool drawLabels = settings.Get("AsteroidsLabels");
Brush brushNames = new SolidBrush(map.GetColor("ColorCometsLabels"));
if (drawComets)
{
var comets = allComets.Where(a => Angle.Separation(map.Center, a.Horizontal) < map.ViewAngle);
foreach (var c in comets)
{
float diam = map.GetDiskSize(c.Semidiameter);
if (diam > 5)
{
double ad = Angle.Separation(c.Horizontal, map.Center);
if ((!isGround || c.Horizontal.Altitude + c.Semidiameter / 3600 > 0) &&
ad < map.ViewAngle + c.Semidiameter / 3600)
{
PointF p = map.Project(c.Horizontal);
PointF t = map.Project(c.TailHorizontal);
double tail = map.DistanceBetweenPoints(p, t);
if (diam > 5 || tail > 10)
{
using (var gpComet = new GraphicsPath())
{
double rotation = Math.Atan2(t.Y - p.Y, t.X - p.X) + Math.PI / 2;
gpComet.StartFigure();
// tail is long enough
if (tail > diam)
{
gpComet.AddArc(p.X - diam / 2, p.Y - diam / 2, diam, diam, (float)Angle.ToDegrees(rotation), 180);
gpComet.AddLines(new PointF[] { gpComet.PathPoints[gpComet.PathPoints.Length - 1], t, gpComet.PathPoints[0] });
}
// draw coma only
else
{
gpComet.AddEllipse(p.X - diam / 2, p.Y - diam / 2, diam, diam);
}
gpComet.CloseAllFigures();
using (var brushComet = new PathGradientBrush(gpComet))
{
brushComet.CenterPoint = p;
int alpha = 100;
if (c.Magnitude >= map.MagLimit)
{
alpha -= (int)(100 * (c.Magnitude - map.MagLimit) / c.Magnitude);
}
brushComet.CenterColor = map.GetColor(Color.FromArgb(alpha, colorComet));
brushComet.SurroundColors = gpComet.PathPoints.Select(pp => Color.Transparent).ToArray();
g.FillPath(brushComet, gpComet);
}
}
if (drawLabels)
{
var font = settings.Get <Font>("CometsLabelsFont");
map.DrawObjectCaption(font, brushNames, c.Name, p, diam);
}
map.AddDrawnObject(c);
}
}
}
}
}
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
var allAsteroids = asteroidsCalc.Asteroids;
bool isGround = settings.Get <bool>("Ground");
bool drawAsteroids = settings.Get <bool>("Asteroids");
bool drawLabels = settings.Get <bool>("AsteroidsLabels");
bool drawAll = settings.Get <bool>("AsteroidsDrawAll");
decimal drawAllMagLimit = settings.Get <decimal>("AsteroidsDrawAllMagLimit");
bool drawLabelMag = settings.Get <bool>("AsteroidsLabelsMag");
Brush brushNames = new SolidBrush(map.GetColor("ColorAsteroidsLabels"));
var font = settings.Get <Font>("AsteroidsLabelsFont");
if (drawAsteroids)
{
var asteroids = allAsteroids.Where(a => Angle.Separation(map.Center, a.Horizontal) < map.ViewAngle);
foreach (var a in asteroids)
{
double ad = Angle.Separation(a.Horizontal, map.Center);
if ((!isGround || a.Horizontal.Altitude + a.Semidiameter / 3600 > 0) &&
ad < map.ViewAngle + a.Semidiameter / 3600)
{
float diam = map.GetDiskSize(a.Semidiameter);
float size = map.GetPointSize(a.Magnitude);
// if "draw all" setting is enabled, draw asteroids brighter than limit
if (drawAll && size < 1 && a.Magnitude <= (float)drawAllMagLimit)
{
size = 1;
}
string label = drawLabelMag ? $"{a.Name} {Formatters.Magnitude.Format(a.Magnitude)}" : a.Name;
// asteroid should be rendered as disk
if ((int)diam > 0 && diam > size)
{
PointF p = map.Project(a.Horizontal);
map.Graphics.FillEllipse(new SolidBrush(map.GetColor(colorAsteroid)), p.X - diam / 2, p.Y - diam / 2, diam, diam);
DrawVolume(map, diam, 0);
if (drawLabels)
{
map.DrawObjectCaption(font, brushNames, label, p, diam);
}
map.AddDrawnObject(a);
continue;
}
// asteroid should be rendered as point
else if ((int)size > 0)
{
PointF p = map.Project(a.Horizontal);
if (!map.IsOutOfScreen(p))
{
g.FillEllipse(new SolidBrush(map.GetColor(Color.White)), p.X - size / 2, p.Y - size / 2, size, size);
if (drawLabels)
{
map.DrawObjectCaption(font, brushNames, label, p, size);
}
map.AddDrawnObject(a);
continue;
}
}
}
}
}
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
var allAsteroids = asteroidsCalc.Asteroids;
bool isGround = settings.Get <bool>("Ground");
double coeff = map.DiagonalCoefficient();
bool drawAsteroids = settings.Get <bool>("Asteroids");
bool drawLabels = settings.Get <bool>("AsteroidsLabels");
Brush brushNames = new SolidBrush(map.GetColor("ColorAsteroidsLabels"));
if (drawAsteroids)
{
var asteroids = allAsteroids.Where(a => Angle.Separation(map.Center, a.Horizontal) < map.ViewAngle * coeff);
foreach (var a in asteroids)
{
double ad = Angle.Separation(a.Horizontal, map.Center);
if ((!isGround || a.Horizontal.Altitude + a.Semidiameter / 3600 > 0) &&
ad < coeff * map.ViewAngle + a.Semidiameter / 3600)
{
float diam = map.GetDiskSize(a.Semidiameter);
// asteroid should be rendered as disk
if ((int)diam > 0)
{
PointF p = map.Project(a.Horizontal);
map.Graphics.FillEllipse(new SolidBrush(map.GetColor(colorAsteroid)), p.X - diam / 2, p.Y - diam / 2, diam, diam);
DrawVolume(map, diam, 0);
if (drawLabels)
{
map.DrawObjectCaption(fontNames, brushNames, a.Name, p, diam);
}
map.AddDrawnObject(a);
continue;
}
// asteroid should be rendered as point
float size = map.GetPointSize(a.Magnitude, maxDrawingSize: 3);
if ((int)size > 0)
{
PointF p = map.Project(a.Horizontal);
if (!map.IsOutOfScreen(p))
{
g.FillEllipse(new SolidBrush(map.GetColor(Color.White)), p.X - size / 2, p.Y - size / 2, size, size);
if (drawLabels)
{
map.DrawObjectCaption(fontNames, brushNames, a.Name, p, size);
}
map.AddDrawnObject(a);
continue;
}
}
}
}
}
}
public override void Render(IMapContext map)
{
double coeff = map.DiagonalCoefficient();
if (settings.Get <bool>("Ground"))
{
const int POINTS_COUNT = 64;
PointF[] hor = new PointF[POINTS_COUNT];
double step = 2 * map.ViewAngle / (POINTS_COUNT - 1);
SolidBrush brushGround = new SolidBrush(map.GetColor(colorGroundNight, colorGroundDay));
// Bottom part of ground shape
for (int i = 0; i < POINTS_COUNT; i++)
{
var h = new CrdsHorizontal(map.Center.Azimuth - map.ViewAngle + step * i, 0);
hor[i] = map.Project(h);
}
if (hor[0].X >= 0)
{
hor[0].X = -1;
}
if (hor[POINTS_COUNT - 1].X <= map.Width)
{
hor[POINTS_COUNT - 1].X = map.Width + 1;
}
if (hor.Any(h => !map.IsOutOfScreen(h)))
{
GraphicsPath gp = new GraphicsPath();
gp.AddCurve(hor);
gp.AddLines(new PointF[]
{
new PointF(map.Width + 1, map.Height + 1),
new PointF(-1, map.Height + 1)
});
map.Graphics.FillPath(brushGround, gp);
}
else if (map.Center.Altitude <= 0)
{
map.Graphics.FillRectangle(brushGround, 0, 0, map.Width, map.Height);
}
// Top part of ground shape
if (map.Center.Altitude > 0)
{
for (int i = 0; i < POINTS_COUNT; i++)
{
var h = new CrdsHorizontal(map.Center.Azimuth - map.ViewAngle - step * i, 0);
hor[i] = map.Project(h);
}
if (hor.Count(h => !map.IsOutOfScreen(h)) > 2)
{
GraphicsPath gp = new GraphicsPath();
gp.AddCurve(hor);
gp.AddLines(new PointF[]
{
new PointF(map.Width + 1, -1),
new PointF(-1, -1),
});
map.Graphics.FillPath(brushGround, gp);
}
}
}
if (map.Schema == ColorSchema.White || (!settings.Get <bool>("Ground") && settings.Get <bool>("HorizonLine")))
{
const int POINTS_COUNT = 64;
PointF[] hor = new PointF[POINTS_COUNT];
double step = 2 * map.ViewAngle / (POINTS_COUNT - 1);
for (int i = 0; i < POINTS_COUNT; i++)
{
var h = new CrdsHorizontal(map.Center.Azimuth - map.ViewAngle + step * i, 0);
hor[i] = map.Project(h);
}
if (hor[0].X >= 0)
{
hor[0].X = -1;
}
if (hor[POINTS_COUNT - 1].X <= map.Width)
{
hor[POINTS_COUNT - 1].X = map.Width + 1;
}
if (hor.Any(h => !map.IsOutOfScreen(h)))
{
Pen penHorizonLine = new Pen(map.GetColor("ColorHorizon"), 2);
map.Graphics.DrawCurve(penHorizonLine, hor);
}
}
if (settings.Get <bool>("LabelCardinalDirections"))
{
Brush brushCardinalLabels = new SolidBrush(map.GetColor("ColorCardinalDirections"));
StringFormat format = new StringFormat()
{
LineAlignment = StringAlignment.Center, Alignment = StringAlignment.Center
};
for (int i = 0; i < cardinalDirections.Length; i++)
{
var h = new CrdsHorizontal(i * 360 / cardinalDirections.Length, 0);
if (Angle.Separation(h, map.Center) < map.ViewAngle * coeff)
{
PointF p = map.Project(h);
p.Y += fontCardinalLabels[i % 2].Height;
using (var gp = new GraphicsPath())
{
map.Graphics.DrawString(Text.Get($"CardinalDirections.{cardinalDirections[i]}"), fontCardinalLabels[i % 2], brushCardinalLabels, p, format);
}
}
}
}
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
var allComets = cometsCalc.Comets;
bool isGround = settings.Get("Ground");
bool useTextures = settings.Get("PlanetsTextures");
bool drawComets = settings.Get("Comets");
bool drawLabels = settings.Get("CometsLabels");
bool drawAll = settings.Get <bool>("CometsDrawAll");
decimal drawAllMagLimit = settings.Get <decimal>("CometsDrawAllMagLimit");
bool drawLabelMag = settings.Get <bool>("CometsLabelsMag");
Brush brushNames = new SolidBrush(map.GetColor("ColorCometsLabels"));
var font = settings.Get <Font>("CometsLabelsFont");
if (drawComets)
{
var comets = allComets.Where(a => Angle.Separation(map.Center, a.Horizontal) < map.ViewAngle);
foreach (var c in comets)
{
float diam = map.GetDiskSize(c.Semidiameter);
float size = map.GetPointSize(c.Magnitude);
// if "draw all" setting is enabled, draw comets brighter than limit
if (drawAll && size < 1 && c.Magnitude <= (float)drawAllMagLimit)
{
size = 1;
}
string label = drawLabelMag ? $"{c.Name} {Formatters.Magnitude.Format(c.Magnitude)}" : c.Name;
if (diam > 5)
{
double ad = Angle.Separation(c.Horizontal, map.Center);
if ((!isGround || c.Horizontal.Altitude + c.Semidiameter / 3600 > 0) &&
ad < map.ViewAngle + c.Semidiameter / 3600)
{
PointF p = map.Project(c.Horizontal);
PointF t = map.Project(c.TailHorizontal);
double tail = map.DistanceBetweenPoints(p, t);
if (diam > 5 || tail > 10)
{
using (var gpComet = new GraphicsPath())
{
double rotation = Math.Atan2(t.Y - p.Y, t.X - p.X) + Math.PI / 2;
gpComet.StartFigure();
// tail is long enough
if (tail > diam)
{
gpComet.AddArc(p.X - diam / 2, p.Y - diam / 2, diam, diam, (float)Angle.ToDegrees(rotation), 180);
gpComet.AddLines(new PointF[] { gpComet.PathPoints[gpComet.PathPoints.Length - 1], t, gpComet.PathPoints[0] });
}
// draw coma only
else
{
gpComet.AddEllipse(p.X - diam / 2, p.Y - diam / 2, diam, diam);
}
gpComet.CloseAllFigures();
using (var brushComet = new PathGradientBrush(gpComet))
{
brushComet.CenterPoint = p;
int alpha = 100;
if (c.Magnitude >= map.MagLimit)
{
alpha -= (int)(100 * (c.Magnitude - map.MagLimit) / c.Magnitude);
}
brushComet.CenterColor = map.GetColor(Color.FromArgb(alpha, colorComet));
brushComet.SurroundColors = gpComet.PathPoints.Select(pp => Color.Transparent).ToArray();
g.FillPath(brushComet, gpComet);
}
}
if (drawLabels)
{
map.DrawObjectCaption(font, brushNames, label, p, diam);
}
map.AddDrawnObject(c);
}
}
}
else if ((int)size > 0)
{
PointF p = map.Project(c.Horizontal);
if (!map.IsOutOfScreen(p))
{
g.FillEllipse(new SolidBrush(map.GetColor(Color.White)), p.X - size / 2, p.Y - size / 2, size, size);
if (drawLabels)
{
map.DrawObjectCaption(font, brushNames, label, p, size);
}
map.AddDrawnObject(c);
continue;
}
}
}
}
}
public override void Render(IMapContext map)
{
if (settings.Get <bool>("Ground"))
{
const int POINTS_COUNT = 64;
PointF[] hor = new PointF[POINTS_COUNT];
double step = 2 * map.ViewAngle / (POINTS_COUNT - 1);
SolidBrush brushGround = new SolidBrush(map.GetColor(colorGroundNight, colorGroundDay));
// Bottom part of ground shape
for (int i = 0; i < POINTS_COUNT; i++)
{
var h = new CrdsHorizontal(map.Center.Azimuth - map.ViewAngle + step * i, 0);
hor[i] = map.Project(h);
}
if (hor.Any(h => !map.IsOutOfScreen(h)))
{
GraphicsPath gp = new GraphicsPath();
gp.AddCurve(hor);
var pts = map.IsInverted ?
new PointF[]
{
new PointF(map.Width + 1, -1),
new PointF(-1, -1),
} : new PointF[]
{
new PointF(map.Width + 1, map.Height + 1),
new PointF(-1, map.Height + 1)
};
if (hor.Last().X > map.Width / 2)
{
gp.AddLines(pts);
}
else
{
gp.AddLines(pts.Reverse().ToArray());
}
map.Graphics.FillPath(brushGround, gp);
}
else if (map.Center.Altitude <= 0)
{
map.Graphics.FillRectangle(brushGround, 0, 0, map.Width, map.Height);
}
// Top part of ground shape
if (map.Center.Altitude > 0)
{
for (int i = 0; i < POINTS_COUNT; i++)
{
var h = new CrdsHorizontal(map.Center.Azimuth - map.ViewAngle - step * i, 0);
hor[i] = map.Project(h);
}
if (hor.Count(h => !map.IsOutOfScreen(h)) > 2)
{
GraphicsPath gp = new GraphicsPath();
gp.AddCurve(hor);
gp.AddLines(new PointF[]
{
new PointF(map.Width + 1, -1),
new PointF(-1, -1),
});
map.Graphics.FillPath(brushGround, gp);
}
}
}
if (map.Schema == ColorSchema.White || (!settings.Get <bool>("Ground") && settings.Get <bool>("HorizonLine")))
{
const int POINTS_COUNT = 64;
PointF[] hor = new PointF[POINTS_COUNT];
double step = 2 * map.ViewAngle / (POINTS_COUNT - 1);
for (int i = 0; i < POINTS_COUNT; i++)
{
var h = new CrdsHorizontal(map.Center.Azimuth - map.ViewAngle + step * i, 0);
hor[i] = map.Project(h);
}
if (hor.Any(h => !map.IsOutOfScreen(h)))
{
Pen penHorizonLine = new Pen(map.GetColor("ColorHorizon"), 2);
map.Graphics.DrawCurve(penHorizonLine, hor);
}
}
if (settings.Get <bool>("LabelCardinalDirections"))
{
Brush brushCardinalLabels = new SolidBrush(map.GetColor("ColorCardinalDirections"));
StringFormat format = new StringFormat()
{
LineAlignment = StringAlignment.Near, Alignment = StringAlignment.Center
};
for (int i = 0; i < cardinalDirections.Length; i++)
{
var h = new CrdsHorizontal(i * 360 / cardinalDirections.Length, 0);
if (Angle.Separation(h, map.Center) < map.ViewAngle)
{
PointF p = map.Project(h);
var fontBase = settings.Get <Font>("CardinalDirectionsFont");
var font = new Font(fontBase.FontFamily, fontBase.Size * (i % 2 == 0 ? 1 : 0.75f), fontBase.Style);
using (var gp = new GraphicsPath())
{
map.Graphics.DrawString(Text.Get($"CardinalDirections.{cardinalDirections[i]}"), font, brushCardinalLabels, p, format);
}
}
}
}
}
public override void Render(IMapContext map)
{
Graphics g = map.Graphics;
var allStars = starsCalc.Stars;
bool isGround = settings.Get <bool>("Ground");
if (settings.Get <bool>("ConstLines"))
{
PointF p1, p2;
CrdsHorizontal h1, h2;
penConLine.Brush = new SolidBrush(map.GetColor("ColorConstLines"));
foreach (var line in sky.ConstellationLines)
{
h1 = allStars.ElementAt(line.Item1).Horizontal;
h2 = allStars.ElementAt(line.Item2).Horizontal;
if ((!isGround || h1.Altitude > 0 || h2.Altitude > 0) &&
Angle.Separation(map.Center, h1) < 90 &&
Angle.Separation(map.Center, h2) < 90)
{
p1 = map.Project(h1);
p2 = map.Project(h2);
var points = map.SegmentScreenIntersection(p1, p2);
if (points.Length == 2)
{
g.DrawLine(penConLine, points[0], points[1]);
}
}
}
}
if (settings.Get <bool>("Stars") && !(map.Schema == ColorSchema.Day && map.DayLightFactor == 1))
{
var stars = allStars.Where(s => s != null && Angle.Separation(map.Center, s.Horizontal) < map.ViewAngle);
if (isGround)
{
stars = stars.Where(s => s.Horizontal.Altitude >= 0);
}
foreach (var star in stars)
{
float diam = map.GetPointSize(star.Mag);
if ((int)diam > 0)
{
PointF p = map.Project(star.Horizontal);
if (!map.IsOutOfScreen(p))
{
if (map.Schema == ColorSchema.White)
{
g.FillEllipse(Brushes.White, p.X - diam / 2 - 1, p.Y - diam / 2 - 1, diam + 2, diam + 2);
}
g.FillEllipse(new SolidBrush(GetColor(map, star.Color)), p.X - diam / 2, p.Y - diam / 2, diam, diam);
map.AddDrawnObject(star);
}
}
}
if (settings.Get <bool>("StarsLabels") && map.ViewAngle <= limitAllNames)
{
brushStarNames = new SolidBrush(map.GetColor("ColorStarsLabels"));
foreach (var star in stars)
{
float diam = map.GetPointSize(star.Mag);
if ((int)diam > 0)
{
PointF p = map.Project(star.Horizontal);
if (!map.IsOutOfScreen(p))
{
DrawStarName(map, p, star, diam);
}
}
}
}
}
}
private void RenderSun(IMapContext map)
{
if (!settings.Get <bool>("Sun"))
{
return;
}
bool isGround = settings.Get <bool>("Ground");
bool useTextures = settings.Get <bool>("SunTexture");
double ad = Angle.Separation(sun.Horizontal, map.Center);
double coeff = map.DiagonalCoefficient();
Color colorSun = map.GetColor(clrSunNight, clrSunDaylight);
if ((!isGround || sun.Horizontal.Altitude + sun.Semidiameter / 3600 > 0) &&
ad < coeff * map.ViewAngle + sun.Semidiameter / 3600)
{
PointF p = map.Project(sun.Horizontal);
float inc = map.GetRotationTowardsNorth(sun.Equatorial);
map.Graphics.TranslateTransform(p.X, p.Y);
map.Graphics.RotateTransform(inc);
float size = map.GetDiskSize(sun.Semidiameter, 10);
if (map.Schema == ColorSchema.Night && useTextures && size > 10)
{
Date date = new Date(map.JulianDay);
DateTime dt = new DateTime(date.Year, date.Month, (int)date.Day, 0, 0, 0, DateTimeKind.Utc);
Brush brushSun = new SolidBrush(clrSunNight);
Image imageSun = imagesCache.RequestImage("Sun", dt, SunImageProvider, map.Redraw);
map.Graphics.FillEllipse(brushSun, -size / 2, -size / 2, size, size);
if (imageSun != null)
{
map.Graphics.DrawImage(imageSun, -size / 2, -size / 2, size, size);
}
}
else
{
if (map.Schema == ColorSchema.White)
{
map.Graphics.FillEllipse(Brushes.White, -size / 2, -size / 2, size, size);
map.Graphics.DrawEllipse(Pens.Black, -size / 2, -size / 2, size, size);
}
else
{
Brush brushSun = new SolidBrush(colorSun);
map.Graphics.FillEllipse(brushSun, -size / 2, -size / 2, size, size);
}
}
map.Graphics.ResetTransform();
if (settings.Get <bool>("SunLabel"))
{
map.DrawObjectCaption(fontLabel, brushLabel, sun.Name, p, size);
}
map.AddDrawnObject(sun);
}
}
private void RenderEarthShadow(IMapContext map)
{
// here and below suffixes meanings are: "M" = Moon, "P" = penumbra, "U" = umbra
// angular distance from center of map to earth shadow center
double ad = Angle.Separation(moon.EarthShadowCoordinates, map.Center);
// semidiameter of penumbra in seconds of arc
double sdP = moon.EarthShadow.PenumbraRadius * 6378.0 / 1738.0 * moon.Semidiameter;
bool isGround = settings.Get <bool>("Ground");
double coeff = map.DiagonalCoefficient();
if ((!isGround || moon.EarthShadowCoordinates.Altitude + sdP / 3600 > 0) &&
ad < coeff * map.ViewAngle + sdP / 3600)
{
PointF p = map.Project(moon.EarthShadowCoordinates);
PointF pMoon = map.Project(moon.Horizontal);
// size of penumbra, in pixels
float szP = map.GetDiskSize(sdP);
// size of umbra, in pixels
float szU = szP / (float)moon.EarthShadow.Ratio;
// size of Moon, in pixels
float szM = map.GetDiskSize(moon.Semidiameter);
// fraction of the penumbra ring (without umbra part)
float fr = 1 - szU / szP;
// do not render on large view angle
if (szM >= 10)
{
// if eclipse takes place
if (Angle.Separation(moon.Horizontal, moon.EarthShadowCoordinates) <= sdP / 3600)
{
var gpM = new GraphicsPath();
var gpP = new GraphicsPath();
var gpU = new GraphicsPath();
gpP.AddEllipse(p.X - szP / 2, p.Y - szP / 2, szP, szP);
gpU.AddEllipse(p.X - szU / 2, p.Y - szU / 2, szU, szU);
gpM.AddEllipse(pMoon.X - szM / 2 - 0.5f, pMoon.Y - szM / 2 - 0.5f, szM + 1, szM + 1);
var brushP = new PathGradientBrush(gpP);
brushP.CenterPoint = p;
brushP.CenterColor = clrPenumbraGrayDark;
brushP.SurroundColors = new Color[] { clrPenumbraTransp };
var blendP = new ColorBlend();
blendP.Colors = new Color[] { clrPenumbraTransp, clrPenumbraTransp, clrPenumbraGrayLight, clrPenumbraGrayDark, clrPenumbraGrayDark };
blendP.Positions = new float[] { 0, fr / 2, fr * 0.95f, fr, 1 };
brushP.InterpolationColors = blendP;
var brushU = new PathGradientBrush(gpU);
brushU.CenterColor = clrUmbraRed;
brushU.SurroundColors = new Color[] { clrUmbraGray };
brushU.Blend.Factors = new float[] { 0, 0.8f, 1 };
brushU.Blend.Positions = new float[] { 0, 0.8f, 1 };
var regionP = new Region(gpP);
var regionU = new Region(gpU);
regionP.Exclude(regionU);
regionP.Intersect(gpM);
regionU.Intersect(gpM);
map.Graphics.FillRegion(brushP, regionP);
map.Graphics.FillRegion(brushU, regionU);
}
// outline circles
if (settings.Get <bool>("EarthShadowOutline") && map.ViewAngle > 0.5)
{
var brush = new SolidBrush(map.GetColor(clrShadowOutline));
var pen = new Pen(brush)
{
DashStyle = DashStyle.Dot
};
map.Graphics.TranslateTransform(p.X, p.Y);
map.Graphics.DrawEllipse(pen, -szP / 2, -szP / 2, szP, szP);
map.Graphics.DrawEllipse(pen, -szU / 2, -szU / 2, szU, szU);
map.Graphics.ResetTransform();
if (map.ViewAngle <= 10)
{
map.DrawObjectCaption(fontShadowLabel, brush, Text.Get("EarthShadow.Label"), p, szP);
}
}
}
}
}
private void RenderMoon(IMapContext map)
{
if (!settings.Get <bool>("Moon"))
{
return;
}
bool isGround = settings.Get <bool>("Ground");
bool useTextures = settings.Get <bool>("MoonTexture");
double ad = Angle.Separation(moon.Horizontal, map.Center);
double coeff = map.DiagonalCoefficient();
if ((!isGround || moon.Horizontal.Altitude + moon.Semidiameter / 3600 > 0) &&
ad < coeff * map.ViewAngle + moon.Semidiameter / 3600.0)
{
PointF p = map.Project(moon.Horizontal);
double inc = map.GetRotationTowardsNorth(moon.Equatorial);
// final rotation of drawn image
// axis rotation is negated because measured counter-clockwise
float axisRotation = (float)(inc - moon.PAaxis);
map.Graphics.TranslateTransform(p.X, p.Y);
map.Graphics.RotateTransform(axisRotation);
// drawing size
float size = map.GetDiskSize(moon.Semidiameter, 10);
SolidBrush brushMoon = new SolidBrush(map.GetColor(Color.Gray));
if (useTextures && size > 10)
{
Image textureMoon = imagesCache.RequestImage("Moon", new PlanetTextureToken("Moon", moon.Libration.l, moon.Libration.b), MoonTextureProvider, map.Redraw);
if (textureMoon != null)
{
map.Graphics.FillEllipse(brushMoon, -size / 2, -size / 2, size, size);
map.DrawImage(textureMoon, -size / 2, -size / 2, size, size);
}
else
{
map.Graphics.FillEllipse(brushMoon, -size / 2, -size / 2, size, size);
}
}
else
{
// Moon disk
map.Graphics.FillEllipse(brushMoon, -size / 2, -size / 2, size, size);
}
map.Graphics.ResetTransform();
float phase = (float)moon.Phase * Math.Sign(moon.Elongation);
float rotation = map.GetRotationTowardsEclipticPole(moon.Ecliptical0);
GraphicsPath shadow = GetPhaseShadow(phase, size + 1);
// shadowed part of disk
map.Graphics.TranslateTransform(p.X, p.Y);
map.Graphics.RotateTransform(rotation);
map.Graphics.FillPath(GetShadowBrush(map), shadow);
map.Graphics.ResetTransform();
if (settings.Get <bool>("MoonLabel"))
{
map.DrawObjectCaption(fontLabel, brushLabel, moon.Name, p, size);
}
map.AddDrawnObject(moon);
}
}
