1.星链数据下载

CelesTrak: Current GP Element Sets

下载二根数就可以。

2.处理数据

下载下来的数据是这样，要将字符串转为 二根数对象

TwoLineElementSet tle = new TwoLineElementSet(tleString);
Sgp4Propagator propagator = new Sgp4Propagator(tle);

3.批量创建卫星 设置名称和轨迹线

var issPoint = new Sgp4Propagator(tleList).CreatePoint();
var satellite = new Platform
{
	Name = tleList.Name,
	LocationPoint = issPoint,
	OrientationAxes = new AxesVehicleVelocityLocalHorizontal(m_earth.FixedFrame, issPoint),
};

satellite.Extensions.Add(new IdentifierExtension(tleList.Name));
var labelExtension = new LabelGraphicsExtension(new LabelGraphics
{
	Text = new ConstantCesiumProperty<string>(satellite.Name),
	FillColor = new ConstantCesiumProperty<Color>(STKUtil.GetColors(i)),
	Font = new ConstantCesiumProperty<string>("10px"),
});
satellite.Extensions.Add(labelExtension);


var markerGraphics = new BillboardGraphics
{
	Image = new CesiumResource(GetModelUri("Markers/Satellite.png"), CesiumResourceBehavior.LinkTo),
};
satellite.Extensions.Add(new BillboardGraphicsExtension(markerGraphics));

// Configure a glTF model for the satellite.
satellite.Extensions.Add(new ModelGraphicsExtension(new ModelGraphics
{
	// Link to a binary glTF file.
	Model = new CesiumResource(GetModelUri("satellite.glb"), CesiumResourceBehavior.LinkTo),
	// By default, Cesium plays all animations in the model simultaneously, which is not desirable.
	RunAnimations = false,
}));


satellite.Extensions.Add(new PathGraphicsExtension(new PathGraphics
{
	Material = new PolylineOutlineMaterialGraphics
	{
		Color = new ConstantCesiumProperty<Color>(STKUtil.GetColors(i)),
		OutlineWidth = new ConstantCesiumProperty<double>(1.0),
		OutlineColor = new ConstantCesiumProperty<Color>(Color.Black),
	},
	Width = 1,
	LeadTime = Duration.FromMinutes(20).TotalSeconds,
	TrailTime = Duration.FromMinutes(20).TotalSeconds,
}));

4 效果

1000可星轨迹线加名字看着好乱

5.去掉名称和轨迹线

卫星视角

缩小看到的是图片，放大看到的是模型

全量数据不到5000颗卫星。