Chart « Color « JFreeChart Q&A





1. Is it possible to create a Color Map (chart) with JFreeChart    jfree.org

I need to create a timeseries chart where each line in the series is drawn exactly next to the previous (no white space) and the line may change colors up to 6 times before it is completely drawn. This will essentially fill the entire chart area with color - the resulting effect is something like a heat or energy image. Can ...

3. setting colors for the chart    jfree.org

4. Hi Low chart with different color    jfree.org

I'm not 100% sure what you want here. The high and low values are connected by a single line, did you want to put colored shapes at each end of the vertical line? Or did you really mean the open and close tick marks? These are drawn using the series paint from the renderer, and there isn't a way to change ...

5. Preventing chart colors from changing    jfree.org

This is a bug. There are two approaches to fixing it that I can think of: (1) Have the dataset fire events that detail which series have been removed, then have the renderers detect this and shift the current colors accordingly; (2) Refactor the renderers to store all visual attributes against the series key rather than the series index, so that ...

6. changing color on chart    jfree.org

Hello I have made a chart and all works fine - but the layout is nok ok. I want to alter the color of the frame around the chart. How do I do this? the: plot.setBackgroundPaint(Color.WHITE); only sets the background behind the chart - I also want to set the frame around the chart to white. Best regards Soendberg

7. Pie/Ring chart's colors changed. Why?    jfree.org

Hi guys! I have rather a strange problem. I'm writing JFreeCharts to PDF document(wi iText): pie (or ring) chart on the top of the page, stackedBar chart below on the same page. If I write the pie (or ring) charts alone in the document or on separate page - the sector's colors are ok as they should - getting from DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE. ...

9. different colors for different parts of one chart    jfree.org

You have to modify the renderer class or provide your own using the setRenderer() method of your plot. You probably use the XYLineAndShapeRenderer (which is the default for linecharts IIRC). So you have two possibilities: * modify the source of XYLineAndShapeRenderer * write your own renderer (eventually derive from XYLineAndShapeRenderer) and tell the plot to use it[/list] I'd probably try the ...





11. Colors in chart with 3 axes    jfree.org

Colors in chart with 3 axes by andrepinz Fri May 15, 2009 10:31 pm Hy, I am trying to do a chart with 3 axes and with 2 series. The left Y axes contains data of 3 series in one collection. And the right Y axes contains data of 1 serie in 1 collection, as follow: But, when I try ...

13. Dynamically editing chart colors    jfree.org

It should be possible. First, try adding an additional MenuItem to the existing menu and add an ActionListener to this MenuItem. Note: The current popup menu can be accessed with the getPopupMenu() in ChartPanel class. Then, implement your method to change the colors. Finally, call this new method in the actionperformed method of the ActionListener.

14. JFreeChart chart coloring problem    jfree.org

public void piePaint(OutputStream out, Object data) throws IOException{ JFreeChart chart = createPieChart( getModel().getPieData()); if (data instanceof MediaData) { ...