jfreechart

I am using JFreeChart in my java application. Problem I want to plot a XYAreaChart whose domain axis (x-axis) should scroll horizontally automatically when we start plotting the data. I saw the same thing in TimeSeriesCharts but I don't want any timeSeriesChart. I just want the scrolling x-axis. trashgod You'll need to create your own SlidingXYDataset that implements XYDataset in a manner similar to how SlidingCategoryDataset implements CategoryDataset . Addendum: As noted in a comment , a typical implementation can be found here . 来源： https://stackoverflow.com/questions/5367222/jfreechart

my bar chart is always drawn with a gradient color by default. I just want a simple color without any styled effects . Can anyone help ? Code: final JFreeChart chart = ChartFactory.createBarChart( "", // chart title xLabel, // domain axis label yLabel, // range axis label dataset, // data PlotOrientation.VERTICAL, // orientation true, // include legend false, // tooltips? false // URLs? ); final CategoryPlot plot = chart.getCategoryPlot(); // SOMETHING HAS TO BE DONE HERE showChart(chart); // Simply shows the chart in a new window Thanks Jes The problem lies in the BarPainter you are using.

I have observed that the functionality of the "Zoom-In" and "Zoom-out" was implemented quite different than expected.Like for example when i do one step "Zoom-out" and then again after one step back of "Zoom-In". I couldn't see the Original graph again. I don't see "Zoom-In" and "Zoom-out" functionality of JFreechart to be in the sync. public class ChartPanelDemo { private static final String title = "Historical Data Graph"; private ChartPanel chartPanel = createChart(); private JButton ZoomX; private JButton ZoomY; private JButton Zoom; private JButton ZoomXOut; private JButton ZoomYOut;

I'm trying to make a chart in my application that returns me the temperature of days during the months. This chart is a JFreechart TimeSeriesCollection, and I am unable to have the graph read correct data from the database. It shows some of the values, but not all of them, and does not show the correct time. To fix this, I tried to implement the graph as posted here , but still could not solve my problem, even having gone to see this question , as people suggested public class NewClass extends ApplicationFrame { Connection conexao = null; PreparedStatement pst= null; ResultSet rs = null;

I need to set a unique color to each bar in the stacked bar chart. Whatever the color I see in one bar it shouldn't be repeated in any other bar or any other stack. For example: I have 5 bars in the report. Each bar has 3 different stacks. I want to apply a red related colors to the first bar and its stacks. Second bar should have blue related colors. etc.. It is showed in the attached image. The image shows a very basic requirement what we want. Just created using a normal ms paint. Stacked Bar MS Paint Image You can override the getItemPaint() method of StackedBarRenderer() to return the