On Jan 31, 2025, at 12:11 AM, Roden Deng Luo via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi Elaine, Zach, and Tom, 

Very useful and informative. Thanks very much! 

I am integrating a whole AI-driven protein design workflow (RFdiffusion, ProteinMPNN, AlphaFold2 or AlphaFold3, Rosetta Delta Delta G, etc.) and planning to use ChimeraX as a user interface (the other candidate is molstar). I am still in the assessing phase to see if I really need an extra 3D viewport and to make tradeoffs. I am planning to check out specialized additional 3d graphics panes, by learning the pseudo-2D viewports in the segmentations bundle. If there are other examples, please kindly let me know. I will keep in mind to make it as simple for the user as possible. 

Best,

Roden

On Mon, Jan 27, 2025 at 11:53 PM Tom Goddard <goddard@sonic.net> wrote:

Hi Roden,

  There isn't "zoom independent" mouse mode.  But you could make one.  Keep in mind that the atom coordinates opened in ChimeraX are in Angstroms and zooming does not change the coordinates, it only changes the positions of the camera.  For a "zoom independent" mode the approach would be to move all the models closer to each other and the camera closer so the models each take more space in the graphics window while their center positions stay (approximately) the same.

  ChimeraX has some very specialized additional 3d graphics panes, Side View and segmentation orthogonal views.  If you have in mind adding general extra graphics views that is a huge amount of work that would make the program substantially more complicated for the user since all the commands that change camera and view settings would then need to be able to specify which graphics pane you want to change.  To appreciate the complexity, there are 400 occurrences in the ChimeraX code of "main_view" which is the Python attribute for the main graphics pane.

Tom

On Jan 26, 2025, at 11:51 PM, Roden Deng Luo via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi Elaine, 

Many thanks! I see now for the first issue. 

My description "have the zoom independent for each model" might be a bit confusing. Using the rotation as an analogy, after entering `tile` mode, the default rotation is governed by `mousemode left "rotate independent"`--I would like to have a zoom mode like this one; if one changes the rotation by 'mousemode left "rotate"', then the rotation is global--this is the current zoom under the tile mode. In other words, having an independent but synchronized zooming would be great. 

Knowing the possibilities and potential solutions from a development perspective would be good. I might develop a multiple-viewport feature if some initial guidance can be given. 

Best,

Roden

On Sun, Jan 26, 2025 at 11:28 PM Elaine Meng <meng@cgl.ucsf.edu> wrote:

Hi Roden,
Somebody else would have to answer the developer part (since I don't program), but I can confirm your first issue: 

Sorry no, tile just changes model placement within a single 3D scene.  The models can't have different zooms, although you can put some models farther away along Z, which would make them look smaller in perspective.

The side view is kind of like another viewport to the same 3D scene as in the main graphics window, but you don't have control over its orientation.
<https://urldefense.com/v3/__https://rbvi.ucsf.edu/chimerax/docs/user/tools/sideview.html__;!!Nmw4Hv0!3uwASZsKMgRUQIGWF3alh7vlcFdaieA2tJW4p6dyVsVFYT_6BytKiEiaektD3AHUXAekrUfATruShx4uy9di$ >

Regards,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Resource for Biocomputing, Visualization, and Informatics
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Jan 26, 2025, at 5:52 AM, Roden Deng Luo via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Hi,
>
> I find there is a `tile` command. After I enter the tile mode, the zoom is global. I guess `tile` is implemented by transforming the active models in the global scene explicitly. I wonder if there is a way to have the zoom independent for each model, similar to the grid mode in PyMol.
>
> A further question, more from a developer's perspective, is whether having multiple 3D rendering viewports in ChimeraX is possible. I imagine each viewport can have its own active models in the scene and its own camera. Different cameras and other operations might be synced upon users' request. This video (https://urldefense.com/v3/__https://youtu.be/7KZ1P-nPav8?si=Z1hiBBuRiWop2WFC__;!!Nmw4Hv0!3uwASZsKMgRUQIGWF3alh7vlcFdaieA2tJW4p6dyVsVFYT_6BytKiEiaektD3AHUXAekrUfATruShwFNiPUq$ ) demos the feature (in an old version of Houdini).
>
> Thanks,
> Roden
>

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