Develop Reference

How to Remove label on pie chart

I have Created Pie Chart using PhilJay MPAndroidChart but i do not want Text and figure written on pie chart it should be beside of pie chart with color an description with figure. now it display at downside without figure.

To remove x-Values use pieChart.setDrawSliceText(false).
To remove y-Values use pieChart.getData().setDrawValues(false).

pieChart.setDrawSliceText(false) has been deprecated so use pieChart.setDrawEntryLabels(false) instead

Draw scatter plot with crosshair on each data points in iReport

Is it possible to draw scatter chart with horizontal and vertical line on the specific data-point in iReport or any other reporting tool except Excel?

Sure, as iReport Charts are based on the JFreeChart Library and you can bind a ChartCustomizer to your chart in iReport, that should not be a big problem.
Search google for these catchwords and you'll get ahead.

Scatter plot with labels java

I need to create a scatter plot in Java, which shows a label in a point position. For example, I have a plot with a point in position (10,20), I need to show a string in that position of the plot instead of a colored point. Is this possible using some library? I have been trying with JChart2D, JFreeChart without success, I just get normal scatter plots.
Thanks for your time.

How to add a PieChart subplot in a JFree BarChart?

I want to include a PieChart subplot over a JFree BarChart. The idea is represent how many items are included in the chart vs the total number of items to see how long is the Long Tail.
Here you can a sample image. How can I build something similar with JFreeChart?

You can create a BufferedImage from any chart using createBufferedImage() and add it to a chart as an XYImageAnnotation.

How to display values within pie chart sector

I am using JFreeChart to create pie charts. Values are displayed outside pie chart sectors as labels. I want to display the values within the pie sectors. How can I achieve this. Please can any one help me?

Use setSimpleLabels(), as shown below; org.jfree.chart.demo.PieChartDemo1 is a good starting point.
PiePlot plot = (PiePlot) chart.getPlot();
plot.setSimpleLabels(true);

If you are using createPieChart3D to create Pie chart, following URL will be helpful to you.
http://www.java2s.com/Code/Java/Chart/JFreeChartPieChart3DDemo1.htm
What I know is, showing values inside is default feature of the chart. If you're unable to do so it seems that you have changed the default way.