DRAFT: Add 2D interactor and image readers

[jpouderoux]

Fixes #49

• [x] Add 2D interactor
• [x] Allow to switch between 2D and 3D interactors with 2 and 3 keys
• [x] Set the 2D interactor automatically for 2D data
• [x] Disable lighthing for 2D image data
• [ ] Set image scalars visibility by default for 2D image data
• [ ] Tests

[mwestphal]

Allow to switch between 2D and 3D interactors with 2 and 3 keys

There is already a hotkey to switch between interactors, why not cycle through available interactors ?

[jpouderoux]

Allow to switch between 2D and 3D interactors with 2 and 3 keys

There is already a hotkey to switch between interactors, why not cycle through available interactors ?

Which key are you thinking about? K ?

[mwestphal]

Allow to switch between 2D and 3D interactors with 2 and 3 keys

There is already a hotkey to switch between interactors, why not cycle through available interactors ?

Which key are you thinking about? K ?

yes

[jpouderoux]

K enables trackball in 3D mode, looks a bit different to me and mixing the 2 concepts looks a bit confusing to me, don't you think?

[mwestphal]

maybe we should discuss a bit about the right way to integrate this. There a few possibilities imo.

[mwestphal]

K enables trackball in 3D mode, looks a bit different to me and mixing the 2 concepts looks a bit confusing to me, don't you think?

Thinking about it, I agree