How can I get the data to create a burndown chart from Jira Greenhopper?

How can I get the data to create a burndown chart from Jira Greenhopper?

I want to create my ow开发者_如何学JAVAn burndown chart with my own graphics. Is there an api I can get the current and historical task data?

You can obtain the data for the Hour Burndown Chart via the actions menu on the version you are interested in. To do this click on the "Excel (Chart Data)" link.

Alternatively, you may wish to comment on GHS-1853, an open a meanwhile closed issue that covers APIs for GreenHopper, with your requirements.