/// <summary>
/// Sets the handle tip to the provided coordinate.
/// </summary>
/// <param name="handleTip">The handle tip.</param>
public void SetHandleTip(CartesianCoordinate handleTip)
{
CartesianOffset offset = handleTip.OffsetFrom(ControlPoint);
Radius = offset.Length();
Rotation = offset.SlopeAngle();
}
public static void Initialization_with_Coordinates_Results_in_Object_with_Immutable_Coordinates_Properties_List()
{
CartesianCoordinate localOriginInGlobal = new CartesianCoordinate(3, 2);
CartesianCoordinate localAxisXPtInGlobal = new CartesianCoordinate(5, 4);
Transformations transformations = new Transformations(localOriginInGlobal, localAxisXPtInGlobal);
AngularOffset angularOffset = new AngularOffset(Numbers.Pi / 4);
CartesianOffset offset = localOriginInGlobal.OffsetFrom(CartesianCoordinate.Origin());
Assert.AreEqual(localOriginInGlobal, transformations.LocalOrigin);
Assert.AreEqual(localAxisXPtInGlobal, transformations.LocalAxisX);
Assert.AreEqual(offset, transformations.Displacement);
Assert.AreEqual(angularOffset.ToAngle().Degrees, transformations.Rotation.ToAngle().Degrees, Tolerance);
}
/// <summary>
/// Initializes a new instance of the <see cref="Transformations"/> class.
/// </summary>
/// <param name="localOriginInGlobal">The local origin in global coordinates.</param>
/// <param name="localAxisXPtInGlobal">Any point along the local x-axis in global coordinates.</param>
public Transformations(CartesianCoordinate localOriginInGlobal, CartesianCoordinate localAxisXPtInGlobal)
{
LocalOrigin = localOriginInGlobal;
LocalAxisX = localAxisXPtInGlobal;
Displacement = localOriginInGlobal.OffsetFrom(CartesianCoordinate.Origin());
if (localAxisXPtInGlobal.Y == localOriginInGlobal.Y)
{
Rotation = new AngularOffset();
}
else
{
Rotation = AngularOffset.CreateFromPoints(
localAxisXPtInGlobal,
localOriginInGlobal,
new CartesianCoordinate(localOriginInGlobal.X - 1, localOriginInGlobal.Y)
);
}
}
/// <summary>
/// Gets the length of the handle for handles at the control points.
/// </summary>
/// <param name="pointI">The point i.</param>
/// <param name="pointJ">The point j.</param>
/// <returns>System.Double.</returns>
private double getHandleLength(CartesianCoordinate pointI, CartesianCoordinate pointJ)
{
return(0.1 * pointJ.OffsetFrom(pointI).Length());
}
