Default Colours

Alan - Blue · Post by **Alan - Blue** » Tue Mar 13, 2007 5:52 pm

Just noticed that when I have so many categories the colours on the bars repeat them selves.

anyone else has a simular problem? and how does one change this without specifying every single colour.

skunk · Post by **skunk** » Tue Mar 13, 2007 8:40 pm

Crate your own instance of a class that implements

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org.jfree.chart.plot.DrawingSupplier

Then call

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plot.setDrawingSupplier(...)

and pass in your new class

matinh · Post by **matinh** » Wed Mar 14, 2007 9:13 am

Or even simpler: create your own DrawingSupplier like this:

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new DefaultDrawingSupplier(
                        new Paint[] {
                                new Color(0x55, 0x55, 0xFF),
                                new Color(0x55, 0xFF, 0xFF),
                                ... },
                        DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
                        DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
                        DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
                        DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE));

And set it like skunk wrote above. This way you don't have to implement the whole interface.

hth,
- martin

tatia34 · Post by **tatia34** » Wed May 16, 2007 10:43 am

hi, I have a problem with this code.... I do that, but the colors always are red, blue,green.... as the default sequence.

my code : (where jfc is a correctly create JFreeChart)

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                jfc.getPlot().setDrawingSupplier(new DefaultDrawingSupplier(
                        new Paint[] {Color.ORANGE,Color.green},
                        new Paint[] {Color.darkGray},
                        DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
                        DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
                        DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE)
                );

four hours that i try some differents ways but no results

please, some help would be welcome

tatia34 · Post by **tatia34** » Mon May 21, 2007 9:20 am

just before, I do jfc.setTitle(title); and it changes the title of my chart... so the jfc variable is OK and is the chart that I have to modify. but no color changes .... I don't understand what isn't going...

edit : more test, and it's ok for PiePlot but not for CategoryPlot and XYPlot...

tatia34 · Post by **tatia34** » Tue May 22, 2007 3:23 pm

mystery… yesterday evening, that did not draw with good colors, and this morning, I have restart my computer and there were good colors.

Post by **david.gilbert** » Tue May 22, 2007 4:23 pm

You have to be sure to set the drawing supplier *before* the chart is drawn for the first time, because it only consults the drawing supplier once and after that it uses the cached values.