Telco 20150909

Date

Wednesday, 9th September, 8am PST, (5pm CEST, 4pm BST, 11am NY, 10am IL+TN)

Hangout Link: https://plus.google.com/hangouts/_/g2e2ayoq57srpi2g4zv2c2ewbua

Agenda

Proposal Example

2d image + wave length

raw detector [100,100,256]

scan over theta and phi and temperature

outer scan temperature

32 
65

inner scan combined theta and phi

-15 0.1
-14 0.3
..  ..
14  8.4
15  8.7

File example:

entry
       data
               @signal=data
               @axes=temperature,theta,firstdim,seconddim,wavelength
               @theta_indices=0,1
               @/entry/sample/temperature_indices=0
               ...
               # this becomes a bit redunant
               ...
               data[2,31,100,100,256]
       instrument
               detector
                       @signal=data
                       @axes=/entry/sample/temperature,theta,firstdim,seconddim,wavelength
                       @/entry/sample/temperature_indices=0
                       @theta_indices=0,1
                       @wavelength_indices=2,3,4
                       @firstdim_indices=2
                       @seconddim_indices=3
                       @thirddim_indices=2,3
                       depends_on=/entry/instrument/detector/seconddim
                       data[2,31,100,100,256]
                       wavelength[100,100,256]
                               @units=nm
                       firstdim[100]
                               @depends_on=/entry/instrument/detector/transformations/arm
                               @transformation_type=translation
                               @vetcor=0.5,0.5,0
                       thirddim[100,100]
                               @depends_on=firstdim
                               @transformation_type=translation
                               @vetcor=0,0,1
                       seconddim[100]
                               @depends_on=thirddim
                               @transformation_type=translation
                               @vetcor=0.5,-0.5,0
                       transformations
                               theta[2,31]
                                       @depends_on=.
                                       @transformation_type=rotation
                                       @vetcor=1,0,0
                               arm[1]
                                       @depends_on=theta
                                       @transformation_type=translation
                                       @vetcor=0,0,1
       sample
               depends_on=/entry/sample/transformations/phi
               temperature[2]
                       units=C
               transformations
                       phi[2,31]
                               @depends_on=.
                               @transformation_type=rotation
                               @vetcor=0,1,0

unsolved problem: pixel size

relatively straight forward for event mode using pixels_ids instead of data

Minutes

Present: HJB, EW, MK, MB, TSR, FA

See above. All reviewed this and found no obvious problems. For the next meeting people should gather use cases that might or might not work and report back.

Freddie fixed the configuration and the build now completes successfully.

Number of tickets has been close as they had been completed a while back. https://github.com/nexusformat/definitions/issues/266 appears to be in an unclear state and would benefit from investigation. Freddie volunteered.

During the call Eugen made some progress on the test build.

Mark B interested. Will contact people in Berkeley.

Telco 20151001