iOS Charting Documentation - SciChart iOS Charts SDK v3.x

SCIProjectionCollection

@interface SCIProjectionCollection<__covariant T, __covariant TSource>
    : SCIObservableCollection <T>

Defines special read-only collection which projects items of one collection into another collection according to specified transform function.

Note

T - is the type of items to project to.

Note

TSource - is the type of source items which need to be projected.
  • Creates a new SCIProjectionCollection instance with specified projection function.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithProjectionFunc:(nonnull SCIFunc1)func;

    Swift

    init(projectionFunc func: @escaping SCIFunc1)

    Parameters

    func

    The function which transforms item from source collection to target item.

  • Creates a new SCIProjectionCollection instance with specified projection function.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithSourceCollection:
                                (nonnull SCIObservableCollection *)collection
                                      projectionFunc:(nonnull SCIFunc1)func;

    Swift

    init(sourceCollection collection: SCIObservableCollection<AnyObject>, projectionFunc func: @escaping SCIFunc1)

    Parameters

    collection

    The source collection to project from.

    func

    The function which transforms item from source collection to target item.

  • Defines the source collection which is used to project from.

    Declaration

    Objective-C

    @property (readwrite, nonatomic)
        SCIObservableCollection<TSource> *_Nullable sourceCollection;

    Swift

    weak var sourceCollection: SCIObservableCollection<TSource>? { get set }