<NIOverviewGraphViewDataSource> Protocol Reference

Overview

The data source for NIOverviewGraphView.

Inheritance diagram for <NIOverviewGraphViewDataSource>:

Tasks
(CGFloat)	- graphViewXRange:
(CGFloat)	- graphViewYRange:
(void)	- resetPointIterator
(BOOL)	- nextPointInGraphView:point:
(void)	- resetEventIterator
(BOOL)	- nextEventInGraphView:xValue:color:

Method Documentation

graphViewXRange:

Fetches the total range of all x values for this graph.

- (CGFloat)graphViewXRange:(NIOverviewGraphView *)graphView;

graphViewYRange:

Fetches the total range of all y values for this graph.

- (CGFloat)graphViewYRange:(NIOverviewGraphView *)graphView;

resetPointIterator

The data source should reset its iterator for fetching points in the graph.

- (void)resetPointIterator;

nextPointInGraphView:point:

Fetches the next point in the graph to plot.

- (BOOL)nextPointInGraphView:(NIOverviewGraphView *)graphView point:(CGPoint *)point;

resetEventIterator

The data source should reset its iterator for fetching events in the graph.

- (void)resetEventIterator;

nextEventInGraphView:xValue:color:

Fetches the next event in the graph to plot.

- (BOOL)nextEventInGraphView:(NIOverviewGraphView *)graphView xValue:(CGFloat *)xValue color:(UIColor *)*color;