Currently I'm working on charts and want to achieve an output. I wanted to achieve two things.
- To display candle stick chart of stocks data. [done]
- To display the stock split log above or below the candle. [pending]
I'm using JFreeChart SDK to build the charts. I'm using OHLCDataItem[] to build data for daily high/low etc of stock. unfortunately jfreechart does not have any extension of OHLCDataItem to show additional information (logo + text metadata) on the candle.
Sample code:
TimeSeries timeSeriesDailyMovingAverage = new TimeSeries("day moving average");
List<OHLCDataItem> dataItems = new ArrayList<OHLCDataItem>(); //to collect High low close prices
OHLCDataItem item = new OHLCDataItem(date, open, high, low, adjClose, volume);//this code is in loop with do that more data can be added for each day
dataItems.add(item);
OHLCDataItem[] data = dataItems.toArray(new OHLCDataItem[dataItems.size()]);
OHLCDataset dataset = new DefaultOHLCDataset(symbol, data);
//now initializing the candleStickRanderer and setting its properties series strock + paint
CandlestickRenderer CandleStickRenderer = new CandlestickRenderer();
XYLineAndShapeRenderer LineRenderer = new XYLineAndShapeRenderer(true, false);
HighLowRenderer OHLCRenderer = new HighLowRenderer();
DateAxis domainAxis = new DateAxis();
NumberAxis rangeAxis = new NumberAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createStandardTickUnits());
XYPlot plot = new XYPlot(dataset, domainAxis, rangeAxis, LineRenderer);//set other properties
JFreeChart chart = new JFreeChart(info, new Font("SansSerif", Font.PLAIN, 15), plot, false);
ChartPanel chartPanel = new ChartPanel(chart);
JPanel panel = new JPanel(new BorderLayout());
panel.add(chartPanel, BorderLayout.CENTER);
getContentPane().add(panel);
XYPlot xyplot = (XYPlot) chart.getPlot();
xyplot.setRenderer(CandleStickRenderer);
This is some rough code which is working fine. I'm getting the desired out of Candle chart. current output of candle stick But I cannot figure out how can I add text/logo on XYPlot based on dataset.
What I want to achieve is that, add text/or shape containing text information at the bottom/top of a particular candle. It would be a great help if someone can guide me how I can do it based on the dataset.
The desired output is like this chart. desired output
