MultiSlice in the VSI and SliceViewer cross-communicate

[Owen Arnold]

This is a requirement captured in the Scientific Steering Committee 2014, and Pascal Manual has recently prompted us to ensure that it happens.

With the current MultiSlice you can shift-click on a slice position and it will render in the SliceViewer. However, the two views are not linked so updates to the slice position on one will not be mirrored in the other. I'm not sure how complicated it would be to drive the MultiSliceView externally, but I think that this will be one of the greatest challenges.

To make things easier, lets always make it so the the current creation route which involves VSI->SliceViewer is maintained. Also, we should probably disable the projection axis switching controls on the SliceViewer while they are linked. Perhaps, it we should also make it possible to unlink the two, which would get us back to the existing behaviour.

I've cc'd Michael as he probably has some useful contributions to make here.

[Nick Draper]

Michael I've assigned this to you, but if more of the work is on the slice viewer side you might want to pass it over to Owen.

[Michael Reuter]

The linked behavior is going to require changes from Kitware to the interface. There's not enough information from ParaView's end to determine which slice is changing. You only get a "yes slices are changing" notification.

[Nick Draper]

Moved to Owen for now to make sure this is not lost

[Owen Arnold]

This has actually been done as part of our work with Kitware for 4.2

[Owen Arnold]

Moved owen's tickets to 3.5

[Stuart Campbell]

This ticket has been transferred to github issue ​9898