/// <summary>
/// Gets the matrix that transforms the part at this position to another position.
/// </summary>
/// <param name="other">The other.</param>
/// <returns></returns>
/// <exception cref="System.InvalidOperationException">
/// The method has been called on a default instance of the <see cref="EdgePartPosition" /> struct.
/// </exception>
/// <exception cref="System.ArgumentException">The other edge part has not been set.</exception>
public Matrix3x2 GetTransformTo(EdgePartPosition other)
{
if (Part == null)
{
throw new InvalidOperationException("Edge part not set.");
}
if (other.Part == null)
{
throw new ArgumentException("Other edge part not set.", nameof(other));
}
bool isClockwise = Part.IsClockwise;
bool otherIsClockwise = other.Part.IsClockwise;
Vector2 fromStart = isClockwise ? Start : End;
Vector2 fromEnd = isClockwise ? End : Start;
Vector2 toStart = otherIsClockwise ? other.Start : other.End;
Vector2 toEnd = otherIsClockwise ? other.End : other.Start;
Matrix3x2 transform = Matrix.GetTransform(fromStart, fromEnd, toStart, toEnd);
if (isClockwise == otherIsClockwise)
{
transform *= Matrix.CreateReflection(toStart, toEnd);
}
return(transform);
}
public EdgePartPosition GetEdgePartPosition([NotNull] EdgePart edgePart) => EdgePartPosition.Create(edgePart, Shape, Transform);
public Tiling CreateTiling(
[NotNull] TilingDefinition tilingDefinition,
[NotNull] ShapeSet shapes,
[NotNull] StyleManager styleManager)
{
if (tilingDefinition == null)
{
throw new ArgumentNullException(nameof(tilingDefinition));
}
if (shapes == null)
{
throw new ArgumentNullException(nameof(shapes));
}
if (styleManager == null)
{
throw new ArgumentNullException(nameof(styleManager));
}
if (!Tilings.Values.Contains(tilingDefinition))
{
throw new ArgumentException(
Strings.Template_CreateTiling_UnknownTilingDefinition,
nameof(tilingDefinition));
}
HashSet <ShapeTemplate> templates = new HashSet <ShapeTemplate>(shapes.Select(s => s.Template));
if (!templates.SetEquals(ShapeTemplates.Values))
{
throw new ArgumentException(Strings.Template_CreateTiling_WrongShapes, nameof(shapes));
}
Dictionary <int, ShapeLines> shapeLines = new Dictionary <int, ShapeLines>();
List <Tile> tiles = new List <Tile>(shapes.Count);
// TODO Order shapes so that the nth shape is adjacent to at least one of the previous shapes
foreach (Shape shape in shapes)
{
Debug.Assert(shape != null, "shape != null");
string label = null;
Matrix3x2 transform = default(Matrix3x2);
if (tiles.Count < 1)
{
label = tilingDefinition.AdjacentParts
.Where(l => l.Value.ShapeTemplate == shape.Template)
.OrderBy(l => l.Label, StringComparer.InvariantCulture)
.First().Label;
transform = Matrix3x2.Identity;
}
else
{
foreach (Tile t in tiles)
{
foreach (EdgePartShape partShape in t.PartShapes)
{
Debug.Assert(partShape != null, "partShape != null");
Labeled <EdgePart> adjacent;
if (!tilingDefinition.AdjacentParts.TryGetAdjacent(
partShape.Part.WithLabel(t.Label),
out adjacent))
{
continue;
}
Debug.Assert(adjacent.Value != null, "adjacent.Value != null");
if (adjacent.Value.ShapeTemplate != shape.Template)
{
continue;
}
label = adjacent.Label;
transform = EdgePartPosition.Create(adjacent.Value, shape)
.GetTransformTo(t.GetEdgePartPosition(partShape.Part));
}
if (label != null)
{
break;
}
}
if (label == null)
{
throw new InvalidDataException();
}
}
EdgePartShape[] partShapes = shape.Template.EdgeParts[tilingDefinition]
.Select(
ep => new EdgePartShape(
ep,
shapes.GetEdge(ep.EdgePattern.EdgeName),
shapeLines.GetOrAdd(ep.PartShapeID, _ => ShapeLines.CreateDefault())))
.ToArray();
Tile tile = new Tile(label, shape, transform, partShapes);
tile.Style = styleManager.GetStyle(tile);
tiles.Add(tile);
}
return(new Tiling(this, tilingDefinition, tiles, styleManager));
}
/// <summary>
/// Gets the matrix that transforms the part at this position to another position.
/// </summary>
/// <param name="other">The other.</param>
/// <returns></returns>
/// <exception cref="System.InvalidOperationException">
/// The method has been called on a default instance of the <see cref="EdgePartPosition" /> struct.
/// </exception>
/// <exception cref="System.ArgumentException">The other edge part has not been set.</exception>
public Matrix3x2 GetTransformTo(EdgePartPosition other)
{
if (Part == null) throw new InvalidOperationException("Edge part not set.");
if (other.Part == null) throw new ArgumentException("Other edge part not set.", nameof(other));
bool isClockwise = Part.IsClockwise;
bool otherIsClockwise = other.Part.IsClockwise;
Vector2 fromStart = isClockwise ? Start : End;
Vector2 fromEnd = isClockwise ? End : Start;
Vector2 toStart = otherIsClockwise ? other.Start : other.End;
Vector2 toEnd = otherIsClockwise ? other.End : other.Start;
Matrix3x2 transform = Matrix.GetTransform(fromStart, fromEnd, toStart, toEnd);
if (isClockwise == otherIsClockwise)
transform *= Matrix.CreateReflection(toStart, toEnd);
return transform;
}