/// <summary>
/// 5. Constructor for a projectile motion Quantities. Computes an initial height based on the length.
/// </summary>
/// <param name="α">An elevation angle.</param>
/// <param name="l">The length.</param>
/// <param name="v">An initial velocity.</param>
/// <param name="g">A gravitation acceleration of the planet.</param>
/// <param name="units">The units of Quantities. By default metre per second, radian, metre and metre per square second.</param>
public ProjectileMotionQuantities(Length l, ElevationAngle α, InitialVelocity v, GravAcceleration g, ProjectileMotionResultsUnits units = null)
{
Units = units ?? new ProjectileMotionResultsUnits();
V = v;
Α = α;
G = g;
H = new InitialHeight(
GetResultWithComputeExpection(
Α.IsRight() ?
double.NaN
: (
Math.Pow(l.GetBasicVal(), 2.0) * G.GetBasicVal() /
Math.Pow(Math.Cos(Α.GetBasicVal()), 2.0) -
2.0 * l.GetBasicVal() * Math.Pow(V.GetBasicVal(), 2.0) * Math.Tan(Α.GetBasicVal())
) / (2.0 * Math.Pow(V.GetBasicVal(), 2.0))
),
UnitLength.Basic
).Convert(Units.Length);
UsedAssignmentType = AssignmentsTypes.InitialHeightByLength;
}
/// <summary>
/// 6. Constructor for a projectile motion Quantities. Computes an initial velocity based on the length.
/// </summary>
/// <param name="α">An elevation angle.</param>
/// <param name="l">The length.</param>
/// <param name="h">An initial height.</param>
/// <param name="g">A gravitation acceleration of the planet.</param>
/// <param name="units">The units of Quantities. By default metre per second, radian, metre and metre per square second.</param>
public ProjectileMotionQuantities(Length l, ElevationAngle α, InitialHeight h, GravAcceleration g, ProjectileMotionResultsUnits units = null)
{
Units = units ?? new ProjectileMotionResultsUnits();
Α = α;
H = h;
G = g;
V = new InitialVelocity(
GetResultWithComputeExpection(
Α.IsRight() ?
double.NaN
:
l.GetBasicVal() == 0 && H.GetBasicVal() == 0 && Α.GetBasicVal() > 0 ? 0 :
l.GetBasicVal() * Math.Sqrt(G.GetBasicVal() / Math.Cos(Α.GetBasicVal())) /
Math.Sqrt(
2.0 * l.GetBasicVal() * Math.Sin(Α.GetBasicVal()) +
2.0 * H.GetBasicVal() * Math.Cos(Α.GetBasicVal())
)
),
UnitVelocity.Basic
).Convert(Units.Velocity);
UsedAssignmentType = AssignmentsTypes.InitialVelocityByLength;
}
