ParaView 3 Telecon 05/08/2007

Item	People	Description
1	All	ParaView 3.2 Deliverables Progress
2	Weirs	V&V Scripting
3	Karelitz	Use Logarithmic Scale greyed out
4	All	Open level 4 bugs
5	Moreland	Resolved bugs
6	Moreland	Animation GUI

V&V Scripting

Greg Weirs is a user of PV who knows little of PV and VTK code. Greg has been the primary V&V driver. Most of our V&V request come indirectly from him.

He is trying to use PV to do quantitative analysis. He wants the dynamic interaction that PV provides while being able to write scripts in the programmable filter. Once he gets the information he desires through PV, he is trying to repeat that for other data. Right now, he is using Python scripting to do so.

The scripts written so far are the same basic operations done in the GUI. They use the programmable filter fairly heavily. The chalanging parts:

• The pipeline/visualization model is different that what Greg and his colleagues are used to. It is difficult for him to match his problem description (e.g. pull some values out of an array) to the PV paradigms.
• The multiple passes of the pipeline (REQUEST_INFORMATION, REQUEST_DATA, etc) are confusing.
• PV and VTK tend to think in the global sense in that you attach filters to the entire data set. In the V&V analysis world, you are often focused on the cell level (it's values, its neighbors, etc.).

Only major request: there is no direct access form the GUI to the data model (cells, points, connectivity, fields, etc.).

Deliverables

Better testing

Clint has started on it. He is testing and fighting bugs in the XDMF reader.

They python stuff should be included. That is testing pvpython and testing the programmable filter.

Display Rearchitecture

It goes. Right now has the superclass and architecture lain out.

Multi-block

Dave D. is still dealing with the last few open PV 3.0 bugs.

Exodus

Eric is also finishing up PV 3.0 bugs and some work on another project.

Animation

Utkarsh has not been working on this.

Selection

Not started.

Annotation

Started adding font support for text widgets. Will check something in in a day or two.

Berk is gathering ideas for labeling.

Spreadsheet view

Done nothing.

Line chart/bar chart

Mark started working on that. Finished the "better zoom" so that the axis are always visible. Working on getting it into PV.

Dave K. also brought up that you should be able to access the chart widgets outside of PV. We all pretty much agree that it should be hosted in its own repository.

Multiple Output

Berk has not done nothing.

Log scales

We will have a text edit next to the log checkbox that allows the user to set the value to be the minimum value to use as the left part of the range.