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

ISCIAxisLayoutStrategy

@protocol ISCIAxisLayoutStrategy <NSObject>

Defines interface for layout strategy which determines how axes should be placed in SCIChartSurface.


                        
                        
                        -addAxis:

Adds axis into this ISCIAxisLayoutStrategy instance.

Declaration

Objective-C

- (void)addAxis:(nonnull id<ISCIAxis>)axis;

Swift

func add(_ axis: any ISCIAxis)

Parameters


                                    axis

The axis to add.


                        
                        
                        -removeAxis:

Removes axis from this ISCIAxisLayoutStrategy` instance.

Declaration

Objective-C

- (void)removeAxis:(nonnull id<ISCIAxis>)axis;

Swift

func remove(_ axis: any ISCIAxis)

Parameters


                                    axis

The axis to remove.


                        
                        
                        -measureAxesWithAvailableWidth:height:andChartLayoutState:

Measures required amount of space to place axes which are currently attached to this ISCIAxisLayoutStrategy instance.

Declaration

Objective-C

- (void)measureAxesWithAvailableWidth:(CGFloat)width
                               height:(CGFloat)height
                  andChartLayoutState:
                      (nonnull SCIChartLayoutState *)chartLayoutState;

Swift

func measureAxes(withAvailableWidth width: CGFloat, height: CGFloat, andChartLayoutState chartLayoutState: SCIChartLayoutState)

Parameters

`width`	The available width in pixels.
`height`	The available height in pixels.
`chartLayoutState`	The `SCIChartLayoutState` state for this layout pass which strategy should modify to set desired size.


                        
                        
                        -layoutWithLeft:top:right:bottom:

Perform layout on axes which use this layout strategy.

Declaration

Objective-C

- (void)layoutWithLeft:(CGFloat)left
                   top:(CGFloat)top
                 right:(CGFloat)right
                bottom:(CGFloat)bottom;

Swift

func layout(withLeft left: CGFloat, top: CGFloat, right: CGFloat, bottom: CGFloat)

Parameters

`left`	left position of area relative to parent `SCIChartSurface`.
`top`	top position of area relative to parent `SCIChartSurface`.
`right`	right position of area relative to parent `SCIChartSurface`.
`bottom`	bottom position of area relative to parent `SCIChartSurface`.