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Adding new advanced chart types in BIRT

My project for this year's Google Sommer of Code will be to contribute new chart types for the BIRT project.

Personal Details

Name: Karsten Knese


Skype: kook1987

Mentor: Ahti Kitsik

Full proposal: Proposal


As there were some request about new chart types for BIRT the goal of my project is to add three new chart types.

  • donut chart
  • venn diagram
  • radar diagram


BIRT already provides several chart types for designing customs reports. I found some open bugs and help-wanted entries in bugzilla.

Donut chart

This chart will be implemented based on the existing pie chart.

Radar diagram

This chart shows data information grouped by categories.

Venn diagram

This chart shows similarities and differences of several datasets.

Project plan

Here you can find the timeline for this project including all milestones.

Milestone Date Description
M1 June 07 Getting organizational things done like SVN repository etc.
M2 June 10 Creating base frame for all three chart types.
Interface and associated implementation class
M3 June 14 Inline Clear which classes of the existing BIRT source have to be patched
M4 July 5 Implementing donut chart based on the existing pie chart
M5 July 13 Testing donut chart - 'Pencil down' for midterm evaluation
M6 July 26 Implementing radar chart
M7 August 10 Implementing venn diagram
Pencil down August 17 Integrating source into BIRT source, do final documentation

Availuable Features

SVN Repository
M1 Source code is hosted at google code for eclipse foundation project. Later it will be integrated in BIRT.

Here you can find the repository.

Next steps

Making plans for creating new chart types. Which classes have to be created.

creating base frame As you can see in the existing birt code, there are two packages for a chart type.
interface package Set of all the different existing birt charts.
implementation package Set of all associated implementation classes.

So the next step will be creating classes and interfaces for all the three new chart types.

Comments, suggestions, ideas

I'm proud to take part in GSoC 2009. As it is my first project I'm happy about every help.
So feel free writing every comments you have. :)

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