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POHow to rotate group labels when using a GroupedStackedBarRenderer in JFreeChart?
 

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  1. POHow to rotate group labels when using a GroupedStackedBarRenderer in JFreeChart?
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    <p><br/> I have a followed the demo from JFreeChart (<a href="http://read.pudn.com/downloads92/sourcecode/graph/359672/JFreeChart/src/com/rjsoft/barcharts/categoryplot/StackedBarChartDemo5.java__.htm" rel="nofollow noreferrer">StackedBarChartDemo5</a>) in order to create a plot allowing me to use the <code>GroupedStackedBarRenderer</code>.</p> <p>Basically, I'm plotting air times for each station (represents a stack in a bar), connected to a radio (represents a bar in the plot), for both receive and transmit (RX and TX). <br/> The plot looks something like this : <img src="https://i.stack.imgur.com/taXz8.png" alt="enter image description here"></p> <p>There are two categories (RX and TX) and several groups (radios). As you can see, currently, the radio MACs are unreadable. I would like to rotate these labels, in order to make the plot legible. <br/> I have used the following piece of code in order to try and rotate the labels: <code>subCategoryAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 4));</code><br/> This only rotated the labels of the categories (RX and TX) instead of the labels of the groups (radio MACs): <img src="https://i.stack.imgur.com/n3YZL.png" alt="enter image description here"></p> <p>I have also tried several other approaches, all of which lead to nowhere... How do I rotate these sublabels?</p> <p>Here is the underlying code that I used to populate the labels with : <br/></p> <pre><code>SubCategoryAxis subCategoryAxis = new SubCategoryAxis("Radio MACs (separate Rx and Tx plots)"); subCategoryAxis.setCategoryMargin(0.05D); // subCategoryAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 4)); KeyToGroupMap keyToGroupMap = null; final Set&lt;String&gt; radios = Sets.newHashSet(); for (Entry&lt;XRadio, Triplet&lt;XStation, Double, Double&gt;&gt; entryMap: channelTimes.entries()) { final String radioMac = entryMap.getKey().getMac(); if (keyToGroupMap == null) keyToGroupMap = new KeyToGroupMap(radioMac); if (!radios.contains(radioMac)) { subCategoryAxis.addSubCategory(radioMac); radios.add(radioMac); } final Triplet&lt;XStation, Double, Double&gt; chTriplet = entryMap.getValue(); final String seriesKey = radioMac + ":" + chTriplet.a.getMac(); keyToGroupMap.mapKeyToGroup(seriesKey, radioMac); model.getDataset().addValue(chTriplet.b, seriesKey, "Rx"); model.getDataset().addValue(chTriplet.c, seriesKey, "Tx"); } if (keyToGroupMap == null) return; groupedStackedBarRenderer.setSeriesToGroupMap(keyToGroupMap); groupedStackedBarRenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); groupedStackedBarRenderer.setBaseItemLabelsVisible(true); groupedStackedBarRenderer.setItemMargin(0.1D); // 10 % groupedStackedBarRenderer.getPlot().setDomainAxis(subCategoryAxis); </code></pre>
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    1. COYou may be able to use one of the approaches shown in [How do I rotate tick mark labels on the domain of a number axis in JFreeChart?](http://stackoverflow.com/questions/7071057/how-do-i-rotate-tick-mark-labels-on-the-domain-of-a-number-axis-in-jfreechart).
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      1. UStrashgod
 

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