/// <summary>
/// Translates the position of the model.
/// </summary>
/// <param name="state">Current state.</param>
/// <param name="offset">Position offset.</param>
/// <returns>New state.</returns>
public static PerspectiveProjection2DModel Translate(this PerspectiveProjection2DModel state, PointF offset)
{
var newState = state.Clone();
newState.ImagePosition.X += offset.X;
newState.ImagePosition.Y += offset.Y;
return(newState);
}
/// <summary>
/// Converts the model to the array.
/// </summary>
/// <param name="modelState">Model to convert.</param>
/// <returns>Array.</returns>
public static double[] ToArray(PerspectiveProjection2DModel modelState)
{
return(new double[]
{
modelState.ImagePosition.X,
modelState.ImagePosition.Y,
modelState.ImageObjectWidth,
modelState.Velocity
});
}
/// <summary>
/// Evaluates the model by using the provided parameters. The velocity value is copied.
/// </summary>
/// <param name="timeInterval">Time interval.</param>
/// <param name="velocityMultiplierConst">Velocity multiplier which is calculated by using: <see cref="CalculateVelocityMultiplierConstant"/> function.</param>
/// <returns>New model state.</returns>
public PerspectiveProjection2DModel Evaluate(double timeInterval, double velocityMultiplierConst)
{
var newState = new PerspectiveProjection2DModel();
var multiplier = 1 / (1 + velocityMultiplierConst * this.Velocity * this.ImageObjectWidth * timeInterval);
newState.ImagePosition.X = (float)(this.ImagePosition.X * multiplier);
newState.ImagePosition.Y = (float)(this.ImagePosition.Y * multiplier);
newState.ImageObjectWidth = this.ImageObjectWidth * multiplier;
newState.Velocity = this.Velocity;
return newState;
}
/// <summary>
/// Evaluates the model by using the provided parameters. The velocity value is copied.
/// </summary>
/// <param name="timeInterval">Time interval.</param>
/// <param name="velocityMultiplierConst">Velocity multiplier which is calculated by using: <see cref="CalculateVelocityMultiplierConstant"/> function.</param>
/// <returns>New model state.</returns>
public PerspectiveProjection2DModel Evaluate(double timeInterval, double velocityMultiplierConst)
{
var newState = new PerspectiveProjection2DModel();
var multiplier = 1 / (1 + velocityMultiplierConst * this.Velocity * this.ImageObjectWidth * timeInterval);
newState.ImagePosition.X = (float)(this.ImagePosition.X * multiplier);
newState.ImagePosition.Y = (float)(this.ImagePosition.Y * multiplier);
newState.ImageObjectWidth = this.ImageObjectWidth * multiplier;
newState.Velocity = this.Velocity;
return(newState);
}
/// <summary>
/// Converts the model to the array.
/// </summary>
/// <param name="modelState">Model to convert.</param>
/// <returns>Array.</returns>
public static double[] ToArray(PerspectiveProjection2DModel modelState)
{
return new double[]
{
modelState.ImagePosition.X,
modelState.ImagePosition.Y,
modelState.ImageObjectWidth,
modelState.Velocity
};
}
