jfreechart Questions

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I recently started using JFreeChart and there is something i would like to do but i'm not sure if it's possible. My program is supposed to draw a spectrogram (a sound graph) from a wav file. So i m...
Extraneous asked 19/4, 2013 at 13:3

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I would like to plot the locus of a particle in two dimensional space. My data is a sequence of X,Y coordinates and I would like to plot these. Would appreciate any pointers to examples that show...
Rant asked 6/4, 2013 at 21:38

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In JFreeChart is there a notion of a composite Chart. I need to layout several charts in a grid like arrangement. Each chart in the grid needs to have its own separate title. I would like to be ...
Inoculation asked 4/4, 2013 at 7:56

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The program will receive data every second and draw them on time Series chart. However, once I create two series, I cannot add new value to it. It displays a straight line only. How do I append ...
Claycomb asked 20/3, 2013 at 7:16

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I need to draw hysteresis loops and then calculate the area closed within the loop. I am using jFreeChart. consider the following data: hyst[0]=0; hyst[1]=0; hyst[2]=0.0098; hyst[3]=0.0196; ...
Wouldbe asked 19/2, 2013 at 8:10

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Is it possible to get complex, beautiful colors for pie charts in JFreechart? I mean how can I achieve the colors like the image shown in the link? Is it possible using the RGB format, or do you n...
Lobo asked 11/2, 2013 at 19:23

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I'm trying to create simple XYSplineRenderer, but code only work if I write XYDotRenderer a = new XYDotRenderer(); or XYLineAndShapeRenderer a = new XYLineAndShapeRenderer(); Can sameone tell what ...
Stupefacient asked 9/2, 2013 at 10:44

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I have small project which makes a graph plot of a data in database. One record in DB is like this: ID, Name, Xcoord, Ycoord For example, I've added 10 points coordinates of which is more or les...
Commercialize asked 18/1, 2013 at 9:15

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I have a JFree XY Line chart which always starts at x = 0. Then based on user defined settings from a properties file, the application increments based on that number (this represents the time in m...
Jabin asked 27/12, 2012 at 11:41

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I need to hide every second/third/forth item from the legend. IS there a way to achieve this in jFreeChart? thanks!
Carothers asked 27/7, 2010 at 9:52

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Client Side Charts or Server Side Charts ? (I had seen some questions based on this topic but none gives a conclusion.) I am currently evaluating Client Side charts(javascript charts). I have ca...
Supinate asked 10/12, 2012 at 10:9

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Is it possible to cast an image/BufferedImage to JFreeChart?
Corrigendum asked 11/3, 2011 at 12:38

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I'm trying to have two axes on the same data. The data is a couple of DefaultTableXYDatasets. The plot is a XYPlot, and I have two XYLineAndShapeRenderers and one StackedXYAreaRenderer2. All da...
Predestinate asked 13/11, 2012 at 10:5

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The answer accepted here (JFreechart(Java) - How to draw lines that is partially dashed lines and partially solid lines?) helped me start down the path of changing my seriesstroke lines on my chart...
Plimsoll asked 5/11, 2012 at 21:9

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I encounter some problems with JFreeChart, here I explained what I'm creating:Random errors when changing series using JFreeChart. But now I have another related question. I have to ChartPanel in C...
Faucal asked 3/11, 2012 at 11:15

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I'm making a GUI that display result of background calculations. But before that, I wanted to test changing the dataset. Here is my code: DefaultXYDataset dataset = new DefaultXYDataset(); @Overr...
Lent asked 3/11, 2012 at 1:56

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After adding the Maven jFree dependency to my existing application, I'm not able to execute the created jar. The only error message I get is the following: java -jar target/com.company.product-1...
Chavez asked 22/10, 2012 at 23:25

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I'm using jFreeChart 1.0.14. I have graph with a horizontal DateAxis. And I'm trying to center the tick labels so that they would be within two subsequent ticks. JFreeChart aligns tick labels in c...
Vivian asked 16/10, 2012 at 13:8

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I'm trying to plot real-time graph, with time axis, but I have found the LineChart constructor only has the signature. LineChart(Axis<X> xAxis, Axis<Y> yAxis) I think embedding jfre...
Pardew asked 25/10, 2012 at 8:17

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I am trying to display a Line Graph with Time(HH:MM:SS) as X-axis and Number(as Y-Axis). The read data from "Time" column is of the format HH:MM:SS. The way i am populating dataset from which cha...
Deegan asked 11/10, 2012 at 10:57

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In my current project, I try to add a BufferedImage to a PDFBox document. More specificly, I use an image from a JFreeChart. My code looks like this: public void exportToPDF(JFreeChart chart, Stri...
Mesnalty asked 14/8, 2011 at 6:51

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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.createBarChar...
Hymenopterous asked 16/8, 2011 at 9:43

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I realize this may be a silly question, and I know it could be done by determining what week or month each data point is in, etc. but, I'm looking for a way to avoid coding that. If it's been done ...
Chanda asked 18/9, 2012 at 14:13

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I wanted to add to the chart a scroll bar in order to view big datasets which did not fit on the screen, because to keep all xtick. However, I got the following error message: Exception in thread ...
Repeater asked 14/9, 2012 at 3:30

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I have implemented a Box and Whisker Chart with data from a csv file. It has many categories and was displayed very squeezed on the screen. So I decided to use a SlidingCategoryDataset with a JSlid...
Tedric asked 12/9, 2012 at 13:15

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