[chimerax-users] relative position of a marker

[C.J.]

Thank you both Tom and Elaine.
I just test the command but it doesn't work. See attached picture.

Elaine Meng <meng at cgl.ucsf.edu> 于2022年5月25日周三 11:45写道：

> Hi Jianhao,
> It depends what you mean by relative position.  If you mean distance, one
> way would be to place a marker at the map center and then measure distance
> between it and the marker you already have.
>
> You can place a marker at map center with "measure center" and the "mark
> true" option:
> <https://rbvi.ucsf.edu/chimerax/docs/user/commands/measure.html#center>
>
> ....or at specific coordinates such as 0,0,0 with "marker" and the
> "position" keyword to specify a point:
> <https://rbvi.ucsf.edu/chimerax/docs/user/commands/marker.html#create>
>
> Then you can select the two markers (same as atoms) with Ctrl-click,
> Shift-Ctrl-click and then use command "distance sel":
> <https://rbvi.ucsf.edu/chimerax/docs/user/commands/distance.html>
>
> Or regardless of whether you wanted to measure any distances, you can save
> the marker(s) to file and just look at the file with a text-editor to see
> what its coordinates are:
> <https://rbvi.ucsf.edu/chimerax/docs/user/markers.html>
>
> I hope this helps,
> Elaine
> -----
> Elaine C. Meng, Ph.D.
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
>
> > On May 25, 2022, at 7:54 AM, C.J. via ChimeraX-users <
> chimerax-users at cgl.ucsf.edu> wrote:
> >
> > Hi,
> > I place a marker in a cryoEM map with "Volume Tracer" tool. How can I
> know the relative position of the marker to the origin or center of the
> map? Thank you!
> > Best,
> > Jianhao
>
>
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