Calculates an elevation circle centered on an earth site.Namespace: Zeptomoby.OrbitTools.Track
Assembly: Zeptomoby.OrbitTools.Track (in Zeptomoby.OrbitTools.Track.dll) Version: 22.214.171.124 (126.96.36.199)
public static < > IsoElevationCircleEcf( this site, date, kmTargetAlt, degAngle, kmSpacing, kmLoft )
<Public Shared Function IsoElevationCircleEcf ( _ site As , _ date As , _ kmTargetAlt As , _ degAngle As , _ kmSpacing As , _ kmLoft As _ ) As (Of )> _
[public: static < ^>^ IsoElevationCircleEcf( ^ site, ^ date, kmTargetAlt, degAngle, kmSpacing, kmLoft )]
The earth site.
Time of calculation.
Target location, in kilometers directly above the earth site.
The viewing angle, from the earth site to an arbitrary target height, [0..90] degrees.
The distance between each point in the circle, in kilometers.
The height of the circle above the earth ellipsoid model, in kilometers.
Return ValueA list of ECF coordinate points that form a circle on the surface of the earth, centered around a given site location. The points all have the same viewing angle of elevation to a target point located at an arbitrary distance above the site.
Usage NoteIn Visual Basic and C#, you can call this method as an instance method on any object of type . When you use instance method syntax to call this method, omit the first parameter. For more information, see
The returned points do not always form a perfect circle due to the Earth's equatorial bulge.