Documentation for JIRA 4.4. Documentation for other versions of JIRA is available too.

Title: Adding the Heat Map Gadget  
Author: Rosie Jameson [Atlassian] Mar 12, 2010
Last Changed by: Giles Gaskell Sep 15, 2010
Tiny Link: (useful for email) https://confluence.atlassian.com/x/7AfuDw
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Incoming Links
JIRA 4.4 (3)
    Page: JIRA 4.1 Release Notes
    Page: Labelling an Issue
    Page: Using the Issue Navigator
Hierarchy
Parent Page
    Page: Customising the Dashboard
Labels
Outgoing Links
JIRA 4.4 (5)     Page: Saving Searches ('Issue Filters')
    Page: __Images for Gadgets
    Page: What is a Project
    Page: What is an Issue
    Page: Customising the Dashboard