iOS & macOS Charting Documentation - SciChart iOS & macOS Charts SDK v4.x

ISCIDoubleValuesProvider

@protocol ISCIDoubleValuesProvider <NSObject>

Defines a collection which can represented as sequence of double values.

count
Returns the number of elements in this provider.
Declaration
Objective-C

@property (nonatomic, readonly) NSInteger count;
Swift

var count: Int { get }
-getDoubleValueAt:
Gets the double representation of item at specified index
Declaration
Objective-C

- (double)getDoubleValueAt:(NSInteger)index;
Swift

func getDoubleValue(at index: Int) -> Double
Parameters

index

The index to get item at
-getDoubleValues:indices:
Gets the items of list at specified indices and sets them as double values.
Declaration
Objective-C

- (void)getDoubleValues:(nonnull SCIDoubleValues *)doubleValues indices:(nonnull SCIIntegerValues *)indices;
Swift

func getDoubleValues(_ doubleValues: SCIDoubleValues, indices: SCIIntegerValues)
Parameters

doubleValues

The target collection to add item to.

indices

The collection of indices to get items at.




-getDoubleValues:startIndex:count:

Gets the items of list at specified start index and sets them as double values.

Declaration

Objective-C

- (void)getDoubleValues:(nonnull SCIDoubleValues *)doubleValues
             startIndex:(NSInteger)startIndex
                  count:(NSInteger)count;

Swift

func getDoubleValues(_ doubleValues: SCIDoubleValues, start startIndex: Int, count: Int)

Parameters

`doubleValues`	The target collection to add item to.
`startIndex`	The index to start at.
`count`	The amount of items to be retrieved.




-findIndexOfDoubleValue:searchMode:isSorted:

Finds value by its double representation with specified search mode in this list.

Declaration

Objective-C

- (NSInteger)findIndexOfDoubleValue:(double)doubleValue
                         searchMode:(SCISearchMode)searchMode
                           isSorted:(BOOL)isSorted;

Swift

func findIndex(ofDoubleValue doubleValue: Double, searchMode: SCISearchMode, isSorted: Bool) -> Int

Parameters

`doubleValue`	The double representation of value to find
`searchMode`	The search mode.

Return Value

The index of item in list.

`doubleValues`	The target collection to add item to.
`indices`	The collection of indices to get items at.