ORKValueRangeGraphChartViewDataSource Protocol Reference
| Conforms to | ORKGraphChartViewDataSource |
|---|---|
| Declared in | ORKGraphChartView.h |
An object that adopts the ORKValueRangeGraphChartViewDataSource protocol is responsible for
providing data in the form of ORKValueRange values required to populate an
ORKValueRangeGraphChartView concrete subclass, such as ORKLineGraphChartView and
ORKDiscreteGraphChartView.
– graphChartView:dataPointForPointIndex:plotIndex:
required method
Asks the data source for the value range to be plotted at the specified point index for the specified plot.
- (ORKValueRange *)graphChartView:(ORKGraphChartView *)graphChartView dataPointForPointIndex:(NSInteger)pointIndex plotIndex:(NSInteger)plotIndexParameters
graphChartView |
The graph chart view that is asking for the value range. |
|---|---|
pointIndex |
An index number identifying the value range in the graph chart view. |
plotIndex |
An index number identifying the plot in the graph chart view. This index is 0 in a single-plot graph chart view. |
Return Value
The value range specified by pointIndex in the plot specified by plotIndex for the
specified graph chart view`.
Declared In
ORKGraphChartView.h