Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

JFreeChart: XYLineAndShapeRenderer with error bars

Posted on 2012-03-26
3
Medium Priority
?
1,131 Views
Last Modified: 2012-03-26
Attached is some code (SSCCE, except you need jfreechart jars), borrowed and then modified from the JFreeChart site. I want to display error bars along with the data but can't get them to show.
What do I need to do?

http://www.jfree.org/jfreechart/download.html
XYLineAndShapeRendererDemo.java
0
Comment
Question by:allelopath
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 7

Accepted Solution

by:
gudii9 earned 2000 total points
ID: 37766476
The first problem, at least, is a bug in an optimisation introduced in JFreeChart 1.0.6, where the renderer tries to process only the items that are visible in the chart (which can save a lot of processing if the data items are ordered by x-value).

The problem is that the drawSeriesLineAsPath option assumes that the renderer will be passed the 0 and N-1 items. With the optimisation, that doesn't actually happen when the plot is zoomed in. The quick fix is to call state.setProcessVisibleItemsOnly(false) in the renderer's initialise() method. I'll try to find a fix that will retain the optimisation.

http://www.java2s.com/Questions_And_Answers/JFreeChart/Renderer/XYLineAndShapeRenderer.htm
http://www.jfree.org/phpBB2/viewtopic.php?p=72791
http://www.jfree.org/jfreechart/api/javadoc/org/jfree/chart/renderer/xy/XYErrorRenderer.html
0
 
LVL 1

Author Comment

by:allelopath
ID: 37766498
Also, I should use XYErrorRenderer.
0
 
LVL 1

Author Comment

by:allelopath
ID: 37766794
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
Viewers learn about the scanner class in this video and are introduced to receiving user input for their programs. Additionally, objects, conditional statements, and loops are used to help reinforce the concepts. Introduce Scanner class: Importing…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question