private static TrajectoryPoint[] Calculate(double bc, DragTableId id)
{
var dragTable = new MyDrag();
var ammo = new Ammunition(
weight: new Measurement <WeightUnit>(168, WeightUnit.Grain),
ballisticCoefficient: new BallisticCoefficient(bc, id),
muzzleVelocity: new Measurement <VelocityUnit>(555, VelocityUnit.MetersPerSecond),
bulletDiameter: new Measurement <DistanceUnit>(0.224, DistanceUnit.Inch),
bulletLength: new Measurement <DistanceUnit>(0.9, DistanceUnit.Inch));
//define ACOG scope
var sight = new Sight(
sightHeight: new Measurement <DistanceUnit>(3.5, DistanceUnit.Inch),
verticalClick: new Measurement <AngularUnit>(1.0 / 3.0, AngularUnit.InchesPer100Yards),
horizontalClick: new Measurement <AngularUnit>(1.0 / 3.0, AngularUnit.InchesPer100Yards)
);
//M16 rifling
var rifling = new Rifling(
riflingStep: new Measurement <DistanceUnit>(12, DistanceUnit.Inch),
direction: TwistDirection.Right);
//standard 100 yard ACOG zeroing
var zero = new ZeroingParameters(
distance: new Measurement <DistanceUnit>(50, DistanceUnit.Yard),
ammunition: null,
atmosphere: null
);
//define rifle by sight, zeroing and rifling parameters
var rifle = new Rifle(sight: sight, zero: zero, rifling: rifling);
//define atmosphere
var atmosphere = new Atmosphere(
altitude: new Measurement <DistanceUnit>(0, DistanceUnit.Foot),
pressure: new Measurement <PressureUnit>(29.92, PressureUnit.InchesOfMercury),
pressureAtSeaLevel: false,
temperature: new Measurement <TemperatureUnit>(59, TemperatureUnit.Fahrenheit),
humidity: 0.78);
var calc = new TrajectoryCalculator();
//shot parameters
var shot = new ShotParameters()
{
MaximumDistance = new Measurement <DistanceUnit>(2000, DistanceUnit.Meter),
Step = new Measurement <DistanceUnit>(100, DistanceUnit.Meter),
//calculate sight angle for the specified zero distance
SightAngle = calc.SightAngle(ammo, rifle, atmosphere, id == DragTableId.GC ? dragTable : null)
};
//calculate trajectory
return(calc.Calculate(ammo, rifle, atmosphere, shot, null, id == DragTableId.GC ? dragTable : null));
}
internal static TrajectoryPoint[] M193(bool hasWind, Measurement <DistanceUnit> step)
{
//define M193 projectile out of 20 inch barrel
var ammo = new Ammunition(
weight: new Measurement <WeightUnit>(55, WeightUnit.Grain),
ballisticCoefficient: new BallisticCoefficient(0.202, DragTableId.G1),
muzzleVelocity: new Measurement <VelocityUnit>(3240, VelocityUnit.FeetPerSecond),
bulletDiameter: new Measurement <DistanceUnit>(0.224, DistanceUnit.Inch),
bulletLength: new Measurement <DistanceUnit>(0.76, DistanceUnit.Inch));
//define ACOG scope
var sight = new Sight(
sightHeight: new Measurement <DistanceUnit>(3.5, DistanceUnit.Inch),
verticalClick: new Measurement <AngularUnit>(1.0 / 3.0, AngularUnit.InchesPer100Yards),
horizontalClick: new Measurement <AngularUnit>(1.0 / 3.0, AngularUnit.InchesPer100Yards)
);
//M16 rifling
var rifling = new Rifling(
riflingStep: new Measurement <DistanceUnit>(12, DistanceUnit.Inch),
direction: TwistDirection.Right);
//standard 100 yard ACOG zeroing
var zero = new ZeroingParameters(
distance: new Measurement <DistanceUnit>(100, DistanceUnit.Yard),
ammunition: null,
atmosphere: null
);
//define rifle by sight, zeroing and rifling parameters
var rifle = new Rifle(sight: sight, zero: zero, rifling: rifling);
//define atmosphere
var atmosphere = new Atmosphere(
altitude: new Measurement <DistanceUnit>(0, DistanceUnit.Foot),
pressure: new Measurement <PressureUnit>(29.92, PressureUnit.InchesOfMercury),
pressureAtSeaLevel: false,
temperature: new Measurement <TemperatureUnit>(59, TemperatureUnit.Fahrenheit),
humidity: 0.78);
var calc = new TrajectoryCalculator();
//shot parameters
var shot = new ShotParameters()
{
MaximumDistance = new Measurement <DistanceUnit>(1000, DistanceUnit.Yard),
Step = step,
//calculate sight angle for the specified zero distance
SightAngle = calc.SightAngle(ammo, rifle, atmosphere)
};
//define winds
Wind[] wind = hasWind ? new Wind[2]
{
new Wind()
{
Direction = new Measurement <AngularUnit>(45, AngularUnit.Degree),
Velocity = new Measurement <VelocityUnit>(10, VelocityUnit.MilesPerHour),
MaximumRange = new Measurement <DistanceUnit>(500, DistanceUnit.Yard),
},
new Wind()
{
Direction = new Measurement <AngularUnit>(15, AngularUnit.Degree),
Velocity = new Measurement <VelocityUnit>(5, VelocityUnit.MilesPerHour),
}
} : null;
//calculate trajectory
return(calc.Calculate(ammo, rifle, atmosphere, shot, wind));
}