Plot extensions and custom plotters for the github.com/gonum/plot packages.

The custplotter package contains some custom plotters which can be used to create financial charts with golang using the gonum/plot package.

The example code in plotext/examples/ohlcbars/main.go shows how a plot containing an OHLC bar chart can be created:

The example code in plotext/examples/candlesticks/main.go shows how a plot containing a candlestick chart can be created:

The example code in plotext/examples/vbars/main.go shows how a plot containing a volume bar chart can be created:

The plotext package contains an extended Align function which can be used to align e.g. an OHLC bar cart and a volume bar chart vertically while providing e.g. 2/3 of the available height for the OHLC chart and 1/3 of the height for the volume chart.