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

ISCICategoryDateAxis

@protocol ISCICategoryDateAxis <ISCIAxisCore>

Defines the interface to a category axis, which treats X-data as linearly increasing regardless of value.

barTimeFrame
Gets the Bar Time Frame in seconds. This is the number of seconds that each data-point represents on the SCICategoryDateAxis and is required for proper rendering. A default value of -1 allows the SCICategoryDateAxis to estimate the time frame.
Declaration
Objective-C

@property (nonatomic, readonly) double barTimeFrame;
Swift

var barTimeFrame: Double { get }
Return Value

The Bar Time Frame in seconds.