public void Drg()
{
using var stream = typeof(DragTableTest).Assembly.GetManifestResourceStream($"BallisticCalculator.Test.resources.drg.txt");
var table = DrgDragTable.Open(stream);
table.Ammunition.Name.Should().Be(".30 Lapua AP492 10.7g");
table.Ammunition.Ammunition.Weight.In(WeightUnit.Gram).Should().BeApproximately(10.7, 1e-7);
table.Ammunition.Ammunition.BulletDiameter.Should()
.NotBeNull()
.And.Subject.As <Measurement <DistanceUnit>?>()
.Value.In(DistanceUnit.Millimeter).Should().BeApproximately(7.83, 1e-7);
table.Ammunition.Ammunition
.BallisticCoefficient.Value.Should().Be(1);
table.Ammunition.Ammunition
.BallisticCoefficient.Table.Should().Be(DragTableId.GC);
table.Ammunition.Ammunition
.BallisticCoefficient.ValueType.Should().Be(BallisticCoefficientValueType.FormFactor);
table.Ammunition.Ammunition
.GetBallisticCoefficient().Should().BeApproximately(0.2482, 5e-5);
table.Count.Should().Be(32);
table[0].DragCoefficient.Should().Be(0.180);
table[0].Mach.Should().Be(0);
table[3].DragCoefficient.Should().Be(0.152);
table[3].Mach.Should().Be(0.5);
table[31].DragCoefficient.Should().Be(0.210);
table[31].Mach.Should().Be(5);
}
public void Custom2()
{
var template = TableLoader.FromResource("custom2");
using var stream = typeof(TrajectoryCalculatorTest).Assembly.GetManifestResourceStream($"BallisticCalculator.Test.resources.drg2.txt");
var table = DrgDragTable.Open(stream);
const double velocityAccuracyInPercent = 0.015, dropAccuracyInMOA = 0.25;
var cal = new TrajectoryCalculator();
ShotParameters shot = new ShotParameters()
{
Step = new Measurement <DistanceUnit>(100, DistanceUnit.Meter),
MaximumDistance = new Measurement <DistanceUnit>(1500, DistanceUnit.Meter),
SightAngle = cal.SightAngle(template.Ammunition, template.Rifle, template.Atmosphere, table),
ShotAngle = template.ShotParameters?.ShotAngle,
CantAngle = template.ShotParameters?.CantAngle,
};
var winds = template.Wind == null ? null : new Wind[] { template.Wind };
var trajectory = cal.Calculate(template.Ammunition, template.Rifle, template.Atmosphere, shot, winds, table);
trajectory.Length.Should().Be(template.Trajectory.Count);
for (int i = 0; i < trajectory.Length; i++)
{
var point = trajectory[i];
var templatePoint = template.Trajectory[i];
point.Distance.In(templatePoint.Distance.Unit).Should().BeApproximately(templatePoint.Distance.Value, templatePoint.Distance.Value * velocityAccuracyInPercent, $"@{point.Distance:N0}");
point.Velocity.In(templatePoint.Velocity.Unit).Should().BeApproximately(templatePoint.Velocity.Value, templatePoint.Velocity.Value * velocityAccuracyInPercent, $"@{point.Distance:N0}");
if (i > 0)
{
var dropAccuracyInInch = Measurement <AngularUnit> .Convert(dropAccuracyInMOA, AngularUnit.MOA, AngularUnit.InchesPer100Yards) * templatePoint.Distance.In(DistanceUnit.Yard) / 100;
point.Drop.In(DistanceUnit.Inch).Should().BeApproximately(templatePoint.Drop.In(DistanceUnit.Inch), dropAccuracyInInch, $"@{point.Distance:N0}");
}
}
}
