| | 1 | == October 23, 2008 == |
| | 2 | '''Attendees''': tef, Tom, Elaine, Greg, Eric, Scooter, Conrad |
| | 3 | |
| | 4 | === New Action Items === |
| | 5 | - Everyone will review Chimera Library course sessions for updates and/or splitting into multiple sessions (item 1) |
| | 6 | - Scooter will write a Chimera news item announcing work on release 1.3 (item 2) |
| | 7 | - Conrad will look into disabling stereo in orthographic view (item 3) |
| | 8 | - Elaine will contact John Gerlt to ask whether he still uses Minrms (item XXX) |
| | 9 | |
| | 10 | === Action Items from previous meetings === |
| | 11 | - Conrad, Eric, Greg and Scooter have tasks for Chimera production release and conversion to svn/trac |
| | 12 | - Everyone will look at the trac interface to check for missing functionality and bugs |
| | 13 | - Scooter will follow up with Marcus regarding Chimera library course |
| | 14 | - Al will decommission SGI after the next Chimera production release |
| | 15 | - Al will install stereo-capable workstation to replace SGI before decommissioning SGIs |
| | 16 | - tef will contact Adobe for more information about embedding 3d graphics in PDF documents |
| | 17 | |
| | 18 | === Minutes === |
| | 19 | 1. Previous Action Items |
| | 20 | - It was generally agreed that we should run Chimera Library courses in the Fall and Spring quarters. Scooter will inform Marcus that we prefer the Spring quarter for the next set of courses. Everyone should review individual sessions for updates, splitting into two sessions, etc. |
| | 21 | 2. Release 1.3 (All) |
| | 22 | - Conrad has forked the tree and labeled the branch release-1_3. |
| | 23 | - Greg is working on updating version.py to use new version numbering system. Greg has already fixed the version-checking CGI script to return numbers that are compatible with current version numbering system. Version-checking code within Chimera still needs to be updated. |
| | 24 | - Scooter will pre-announce release 1.3 in Chimera news on the home page. |
| | 25 | - Eric has contacted Wei regarding branching and will be handling adding bug fixes to branch. |
| | 26 | - Conversion to svn and trac are still on hold. |
| | 27 | 3. Orthographic stereo (Conrad) |
| | 28 | - Conrad suggested that we remove all stereo options when in orthographic view as stereo and orthographic have inherently conflicting requirements. Stereo depends on intersecting lines of projection going to different eyes; orthographic view depends on parallel lines of projection to infinity. Currently, orthographic stereo generates two offset images for the left and right eye; the images are projected in exactly the same direction (ie eye position/separation only control the size and translation of the image but not the direction of projection). Even though users have claimed that they "actualize stereopsis", there is not enough information for them to do so. It is possible to use different lines of projections for the left and right eyes in orthographic view, but then the projected image effectively be rotated if we do not introduce a shear matrix; this results in ithe plane of projection being not parallel to the plane of the display device. Experience with MMS/MIDS (very old ancestor of Chimera) is that, in such an implementation, just scaling the image will destroy the illusion of stereo. Introducing a shear will correct for stereo, but will make left- or right-eye images appear odd. |
| | 29 | - Scooter argued that VMD treats stereo and orthographic view as orthogonal features, and that if Chimera does not provide the same functionality as VMD and PyMol, it would appear "out of step" with the other major packages. Conrad countered that providing a non-functional feature is not a good thing. |
| | 30 | - Conrad will look into disabling stereo when in orthographic view, in both the GUI and command line interfaces. |
| | 31 | 4. Public access to Chimera source repository (Tom) |
| | 32 | - Since public access will be granted through svn/trac, this item will be postponed until after the packages are in production use. |
| | 33 | Meeting ended at 4pm. Item below was not discussed. |
| | 34 | 5. Evaluation of features to remove or improve (All) |
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