Summit II

Date:March 14,15 2006 at Kitware Please make your own travel arrangements.

Agenda

Tuesday, March 14
Time	Item	Who	Slides
8:30-9:00	Coffee and knock-knock jokes	All
9:00-9:30	Overview and Awards	Rogers
9:30-11:30	Code walk-throughs and puppet show	Shead
11:30-1:00	Lunch	All
1:00-2:00	Prism over ParaQ discussion	McBride	PrismV3.0
2:00-4:00	UI design discussion	Matthew	ParaQ Usability Briefing
4:00-5:00	PGraph	Ken

Wednesday, March 15
Time	Item	Who	Slides
8:30-9:00	Coffee and knock-knock jokes	All
9:00-10:00	Lessons learned (GeoViz, Dobrano-viz)	Shead
10:00-11:30	Process Discussion	Geveci	Insight Process
11:30-1:00	Lunch	All
1:00-2:30	Wrap-up, planning for next month's development	All

Things we have to get right

• File dialogue must be great, and must be out early.
• Saving state - what's local, what's on the server.
• Testing
• Undo

Important Questions

• Is ParaQ a Pipeline or a Window based UI. How do we support a useful, understandable multi-view, multi-pipeline application?
• Do we support Multiview' or Dockable window management paradigms? Do we support both?
• What does a graph show, in a multi-view application? What is its update paradigm?
• How do we manage Views and Layouts - what you're looking at, and how it's laid out?
• What is our version number for the Sept. '06 release?
• What are our general multiview interaction mechanisms?
• What are our general Compound Filter interactions for editing and saving?
• Do we have an Accept/Reset paradigm?
• Support Abort of PVSM updates.

Notes

Code Walkthrough

Charting

• CSS-like attributes to control font, etc.
• Printing
• Maintain axes when zooming into chart data.
• Do we need a world-view on a chart, for zoomed in interaction?

UI design items

General

• Right mouse click in QVTKWidget - conflict with context menu in windows.
• Improvements in Auto-generated UI panels.
• Design method for adding code to hand-coded UI panels.
  • Should it always be a QT Designer-based thing?
  • Should we support a script-like way of changing UI in the field? Non-compiled?
• Compound filter creation/editing/loading.
• Zoom/pan etc. - should they be the same as CUBIT?

Pipeline Browser

Major issues

• Simple fan-out
• Multiple sources
• Show things that aren't 'ON' (what's on; how is it shown?)
• Pipeline vs. Windows interaction paradigm?
• Context menu (right mouse click)
• What are the basic operations we can do?
• How does this support Compound Filter operations (creation/editing/loading)
• How would you add 'histogram selection stuff' to ParaQ (what do you add in the UI, where, and how does the user understand it?

Design Decisions

• Make a hierarchy view
  • Rightmost column is 'Root' of a pipeline
  • Indent from left immediately from a root
  • Indent from left for fan-out
  • Fan-in becomes a new root, with the fan-in node being referenced in the 'correct' location in the hierarchy.
  • Icons to be designed by ETI.

Dockable vs. Split View

Decisions

• All 'views' are the same stuff - there is no restriction on what can be in a piece of the screen.
• UI elements are dockable.
• Views are not dockable - they are part of a split-screen main screen that we manage totally.
• Users cannot pull a 'view' out of the main UI.
• See action items for review of further issues.

Current State

• Current variable (including range, etc.)
• Current timestep

File Browser

• Should we use the standard, platform-specific browser?
• Coordinate with CUBIT application.

Prism over ParaQ

Corey presented the current build of prism, and discussed what we'll need from ParaQ in order to build Prism v3.0.

• How do we manage the filters, etc. that make up the SESAME view.

ParaQ Usability

• Accept/Reset. Q: how should the general interaction work?
  • Instant update
  • Interrupt
    • VTK does not currently support Abort
  • Support contiuous changes, with updated/out-of-date UI support (show the user what is out-of-date, so he can update it as needed)
• Note that UI is not on a separate thread ... responsiveness is limited by Server Manager.

Action Items

Item	Who	Ref	Item
001	BG	3026	Monitor interaction between pqPipelineData and server manager classes. In particular, the relationship between data in the server manager, and copies of that data saved in the UI for efficient UI interaction.
002	BG	Dup	Restructure repository
003	DR	3018	Put Summit slides on wiki
004	MR	2987	Design and implement a 'graph' ancestor to pqPipelineData. Determine if there is a 'graph' package that we can create (with both models and views)
005	CS	3019	Element Inspector: add capability to handly large data quickly
006	CS	3005	Create wiki page explaining how to to create custom object inspectors.
007	TS	3020	Create a way for the checkin process to verify that all Qt widgets are named.
008	TS	3023	Handle cross-platform image comparison and capture issues for testing.
009	TS	3006	Create wiki page - instructions for recording tests.
010	DR	3007	Create Selection requirements document (Prism-based requirements to start)
011	DR/CM/KM/BG	3025	Determine how Prism's SESAME view can be built over PGraph framework.
012	BG/KM	3024	Determine restrictions on multiview rendering on server - can we pull windows out of the UI.
013	MW	3008	Do ParaView user testing in CA, NM. Post wiki page about results.
014	MW	3008 (dup)	Determine ParaView barriers to adoption in CA.
015	MW	3008 (dup)	Make wiki page on ParaView issues (results
016	BW	3009	Identify SNL users to help MW with user testing.
017	BW	3010	Post PQ use cases on the wiki
018	DR	3011	Organize PQ data sets for testing (disk_out_ref.exo)
019	BW	3012	Find SAND number for disk_out_ref.exo data set. Post info (including some examples of using ParaView to explore it) on wiki.
020	BW	3013	Get Crystal (Yellow) book to ETI and Kitware.
021	ETI	2988	Make vcr controls much sexier (use Brian's images in vtkSNL repository)
022	MR	2989	Integrate Charting into PGraph architecture
023	CM/BG	2990	Integrate Band Pass filter into VTK
024	BG/BW	2991	Create cut-plane based probe for ParaView 2.6 release
025	DR	3021	Schedule next meeting; Get a bead on summer schedules (all)
026	DR	3011(dup)	Pursue asteroid volume rendering dataset with Mark Boswell
027	BG	3014	Get www.paraq.org, link to paraview site
028	DR	3017	re-organize wiki for user introduction, and developer process (like ITK example)
029	BG	2992	Set CMake option VTK_DEBUG_LEAKS to default ON
030	BG	3015	Add link to coding practices in vtk documentation to Coding Practices page.
031	TS	3016	Follow up on existing implementation of dynamic loading for support of Dobranoviz