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

ISCIAxisInteractivityHelper

@protocol ISCIAxisInteractivityHelper <NSObject>

Defines a set of operations which allows to interact with axis that owns current instance of ISCIAxisInteractivityHelper.


                        
                        
                        -zoom:from:to:

Calculates and returns a Zoomed Range on current ISCIAxis, using fromCoord as a coordinate of new range start and toCoord as a coordinate of new range end.

Declaration

Objective-C

- (void)zoom:(nonnull id<ISCIRange>)range
        from:(CGFloat)fromCoord
          to:(CGFloat)toCoord;

Swift

func zoom(_ range: any ISCIRange, from fromCoord: Double, to toCoord: Double)

Parameters

`range`	`ISCIRange` instance to zoom.
`fromCoord`	The coordinates of new range start in pixels.
`toCoord`	The coordinates of new range end in pixels.


                        
                        
                        -zoom:byMin:max:

Calculates and returns a Zoomed Range on current ISCIAxis, using minFraction as multiplier of range start and maxFraction as multiplier of range end.

Declaration

Objective-C

- (void)zoom:(nonnull id<ISCIRange>)range
       byMin:(CGFloat)minFraction
         max:(CGFloat)maxFraction;

Swift

func zoom(_ range: any ISCIRange, byMin minFraction: Double, max maxFraction: Double)

Parameters

`range`	`ISCIRange` instance to zoom.
`minFraction`	The multiplier of range start.
`maxFraction`	The multiplier of range end.


                        
                        
                        -scrollInMinDirection:byPixels:

From the starting ISCIRange, scrolls to a new range by the the specified number of pixels in Min direction.

Declaration

Objective-C

- (void)scrollInMinDirection:(nonnull id<ISCIRange>)range
                    byPixels:(CGFloat)pixels;

Swift

func scroll(inMinDirection range: any ISCIRange, byPixels pixels: Double)

Parameters

`range`	`ISCIRange` instance to zoom.
`pixels`	The amount of pixels to scroll.


                        
                        
                        -scrollInMaxDirection:byPixels:

From the starting ISCIRange, scrolls to a new range by the the specified number of pixels in Max direction.

Declaration

Objective-C

- (void)scrollInMaxDirection:(nonnull id<ISCIRange>)range
                    byPixels:(CGFloat)pixels;

Swift

func scroll(inMaxDirection range: any ISCIRange, byPixels pixels: Double)

Parameters

`range`	`ISCIRange` instance to zoom.
`pixels`	The amount of pixels to scroll.


                        
                        
                        -scroll:byPixels:

From the starting ISCIRange, scrolls to a new range by the the specified number of pixels.

Declaration

Objective-C

- (void)scroll:(nonnull id<ISCIRange>)range byPixels:(CGFloat)pixels;

Swift

func scroll(_ range: any ISCIRange, byPixels pixels: Double)

Parameters

`range`	`ISCIRange` instance to zoom.
`pixels`	The amount of pixels to scroll.


                        
                        
                        -clipRange:toMaximum:withClipMode:

Performs clipping of passed range using clipMode.

Declaration

Objective-C

- (void)clipRange:(nonnull id<ISCIRange>)range
        toMaximum:(nonnull id<ISCIRange>)maximumRange
     withClipMode:(SCIClipMode)clipMode;

Swift

func clipRange(_ range: any ISCIRange, toMaximum maximumRange: any ISCIRange, with clipMode: SCIClipMode)

Parameters

`range`	`ISCIRange` instance to zoom.
`maximumRange`	`ISCIRange` instance to zoom.
`clipMode`	The `SCIClipMode` value.