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Thank you. That got me in the ballpark of where I needed to be

I wouldn't think it's a bug. Where on a chart does a null value fall?

Is there a way to have a valuemarker not go across the graph completely? Like it stops at some X value? I need it to look something like this:

You want to use a TimeSeries chart. The ticks then are relative to your view. I had a chart that was having the same issues are yours as my dataset is massive for the project I was creating (hourly data intervals). Use the chartfactory of a timeseries and use a dataset of a TimeSeriesCollection (des...

I have created an XYLineAnnotation object to draw a line into my graph, but it doesn't draw? I am using a ChartMouseListener so that it will follow the mouse pointer like so: someChartPanel.addChartMouseListener(new ChartMouseListener() { private int lineLoc = 0; private XYLineAnnotation line = null...

I resolved this using annotations. I found the high and low and then used the pointers from annotations to mark what I needed:

I am wanting to place a single shape at the point where my linegraph is at its max and (eventually) one where it is at its minimum. In my life graph I have an unknown number of linegraphs at the bottom on the graph representing readings from meters from one datetime to the next and then the totals o...

I am hoping there is a better way to get tooltip values of data in a linegraph. To hover over a point can be difficult if there aren't a ton of points. I have another program we use in the office that just draws a line where your mouse pointer is and shows the tooltips for all graph lines that inter...