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Thank you both for the quick response. The renderer on the screenshot is a XYItemRenderer (SamplingXYLineRenderer) First i have implemented the XYStepRenderer as suggested. It looks like this is a solution for my problem. But i will try the second solution to overwrite the constructor of the XYSerie...

Hello, i have a problem with the renderer of Jfreechart. Here are 2 Screenshots: http://www.bilder-upload.eu/thumb/ecb814-1480505781.png The top chart is a old software with other technologies, but we know that this graph is right. In the second chart we can see the lines are not connected to the da...

I have a problem to update the DateTicks of the DateAxis correctly. I update my chart every second with timeSeries.addOrUpdate(TimePeriod, Value) https://imageshack.com/i/plQZEeTxp . The chart should act like an oscilloscope. The last label in my picture is 14:08:00. Now I have 2 problems. Problem 1...

ah ok, thank you very much, i get it :D But, for example i get the width of the data area of a chart, how can i set this width manually ? i get the width that i want on this way: chartPanel.getChartRenderingInfo().getPlotInfo().getDataArea().getWidth(); But how can i manipulate this width ? When i s...

Hi, for layout reasons, i need to know when the width of the range axis changes. For example, when the range of the range axis goes from 1000 - 10000 the domain axis is more "squeezed" than with a range from 1 - 10. ........................................ ........................i need this width ....