hpopp / exygraph

A lightweight graphing library written in Swift

ExyGraph

A lightweight graphing library written in Swift

Installation

To use ExyGraph, just drop ExyGraph.swift anywhere in your project.

Using ExyGraph

1. In your storyboard, drag a plain view on to you view controller.
2. Rename its class to ExyGraph in the IB sidebar. When the file builds again, you'll see a default red graph in the view.
3. ExyGraph makes use of the new @IBDesignable functionality. Many attributes of your graph can be customized directly from the IB sidebar.

Adding Data

ExyGraph currently only draws XY line graphs in a similar style to the iOS Health app. Each ExyGraph contains an array of ExyPlot objects, which define the characteristics of the plot. Each ExyPlot contains an array of ExyPoint objects, where the actual data is stored. The X-Coordinate data in a ExyPoint can be any object of your choosing. ExyGraph does not sort any of the data. It will present in exactly the order the data is placed.

Future Updates

The X-Coordinate data currently converts integers in the range 0-11 to their corresponding month for labelling on the X-axis. This specific implementation will be the first thing to be abstracted away.