/// <summary>
/// Constructs a point by projecting a point on a curve which which closest to the curve
/// </summary>
/// <param name="curve">the curve on which the projection is to be made.</param>
/// <returns></returns>
public DSPoint Project(DSCurve curve)
{
if (curve == null)
{
throw new ArgumentNullException("curve");
}
var pt = curve.Project(this);
pt.Context = curve;
double param = curve.ParameterAtPoint(pt);
pt.T = param;
pt.Distance = curve.DistanceAtParameter(param);
pt.ReferencePoint = this;
pt.Persist();
return(pt);
}
/// <summary>
/// Constructs a point by projecting a point on a curve with given project direction.
/// </summary>
/// <param name="curve">the curve on which the projection is to be made.</param>
/// <param name="direction">the direction vector of the projection</param>
/// <returns></returns>
public DSPoint Project(DSCurve curve, DSVector direction)
{
if (curve == null)
{
throw new ArgumentNullException("curve");
}
else if (direction == null)
{
throw new ArgumentNullException("direction");
}
else if (direction.IsZeroVector())
{
throw new ArgumentException(string.Format(Properties.Resources.IsZeroVector, "direction"));
}
var pt = curve.Project(this, direction);
pt.Context = curve;
pt.ReferencePoint = this;
pt.Direction = direction;
pt.Persist();
return(pt);
}