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

SCIXabcdCreationModifier

@interface SCIXabcdCreationModifier : SCIAnnotationCreationModifierBase

Gesture modifier for interactive XABCD harmonic annotation creation.

Interaction per point (X → A → B → C → D): touch down → places the point at the touch location drag → moves that point live in real-time touch up → locks the point; next touch begins the next point

After D is locked the completed annotation stays on chart and the modifier resets immediately, ready to draw a new annotation.


                        
                        
                        annotationStroke

Stroke applied to each new annotation (optional; uses annotation default if nil).

Declaration

Objective-C

@property (nonatomic, strong, nullable) SCIPenStyle *annotationStroke;

Swift

var annotationStroke: SCIPenStyle? { get set }


                        
                        
                        annotationFill

Fill applied to each new annotation (optional; uses annotation default if nil).

Declaration

Objective-C

@property (nonatomic, strong, nullable) SCIBrushStyle *annotationFill;

Swift

var annotationFill: SCIBrushStyle? { get set }

isDragging
YES while the user is actively drawing a point (finger is down).
Declaration
Objective-C

@property (nonatomic, readonly) BOOL isDragging;
Swift

var isDragging: Bool { get }
activePointIndex
Index of the point currently being placed/dragged (0=X … 4=D). -1 when idle.
Declaration
Objective-C

@property (nonatomic, readonly) NSInteger activePointIndex;
Swift

var activePointIndex: Int { get }
-reset
Cancels and removes any in-progress annotation.
Declaration
Objective-C

- (void)reset;
Swift

func reset()