/// <summary>
/// Add a new part to the composition.
/// </summary>
/// <param name="part">The part to add. This object must not already be owned by another composition.</param>
public virtual void Add(Part part)
{
if (part.Owner != null)
{
throw new ArgumentException("The part already belongs to a composition.");
}
part.Owner = this;
_parts.Add(part);
AlignedBox tmp;
part.BoundingBox(out tmp);
AlignedBox.Merge(ref BoundingBox, ref tmp, out BoundingBox);
}
/// <summary>
/// Applies the specified transform to bring all parts of the composition into world-space.
/// </summary>
/// <param name="transform">The world-space transform to apply.</param>
public virtual void ApplyTransform(ref Transform transform)
{
for (int i = 0; i < _parts.Count; i++)
{
_parts[i].ApplyTransform(ref transform);
}
if (_parts.Count > 0)
{
AlignedBox tmp;
_parts[0].BoundingBox(out BoundingBox);
for (int i = 1; i < _parts.Count; i++)
{
_parts[i].BoundingBox(out tmp);
AlignedBox.Merge(ref BoundingBox, ref tmp, out BoundingBox);
}
}
}