Add global threshold feature for compression

[aowen87]

-----------------------REDMINE MIGRATION----------------------- This ticket was migrated from Redmine. As such, not all information was able to be captured in the transition. Below is a complete record of the original redmine ticket.

Ticket number: 2553 Status: New Project: VisIt Tracker: Feature Priority: Normal Subject: Add global threshold feature for compression Assigned to: - Category: - Target version: - Author: Mark Miller Start: 03/16/2016 Due date: % Done: 0% Estimated time: Created: 03/16/2016 04:42 pm Updated: Likelihood: Severity: Found in version: Impact: 3 - Medium Expected Use: 3 - Occasional OS: All Support Group: Any Description:

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