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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Hi Dr.Elaine,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Thanks for the help.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><br>
One more question is that, is there any way I can convert the .mrc file to a .dx file?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Tianming<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="color:black">发件人</span></b><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black"> Elaine
Meng <meng@cgl.ucsf.edu><br>
</span><b><span style="color:black">日期</span></b><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">
</span><span style="color:black">星期四</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">, 2022</span><span style="color:black">年</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">9</span><span style="color:black">月</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">22</span><span style="color:black">日</span><span style="font-family:"Calibri",sans-serif;color:black">
</span><span style="color:black">上午</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">11:25<br>
</span><b><span style="color:black">收件人</span></b><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black"> Tianming Qu <tqu@fsu.edu><br>
</span><b><span style="color:black">抄送</span></b><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black"> ChimeraX Users Help <chimerax-users@cgl.ucsf.edu><br>
</span><b><span style="color:black">主题</span></b><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black"> get coordinates of voxel<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="font-size:11.0pt">Hi Tianming,<br>
I do not know what you mean by "voxel." <br>
<br>
If you want to find out the coordinates of some point on the surface, you can put a marker (a dummy atom) on that point, see Marker Placement tool and the Markers tab of the Toolbar icons across the top of the ChimeraX window:<br>
<https://urldefense.com/v3/__https://rbvi.ucsf.edu/chimerax/docs/user/tools/markerplacement.html__;!!PhOWcWs!2W2iCt4cXJGDHxy_IgnrdijGN7PeAvcmLXkSz5E2dlBN4MIgkPLuo16uWyPfxQRfgT_jRstpjogNgg$ ><br>
<br>
The third icon in that tab is for "mark surface", you would click that icon to assign the function to right-mouse click (= trackpad + Alt on Windows, trackpad + command key on Mac). Then you can right-mouse-click a point on the surface to place the marker.<br>
<br>
...and then find out the marker coordinates, for example by selecting it (Ctrl-click) and then using command:<br>
<br>
getcrd sel<br>
<br>
If you just mean the locations of the grid points in your map, you can calculate that yourself from the information in the Map Coordinates tool mentioned in my earlier reply.<br>
<br>
I hope this helps,<br>
Elaine<br>
-----<br>
Elaine C. Meng, Ph.D. <br>
UCSF Chimera(X) team<br>
Department of Pharmaceutical Chemistry<br>
University of California, San Francisco<br>
<br>
<br>
> On Sep 22, 2022, at 7:56 AM, Tianming Qu via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:<br>
> <br>
> Thanks for the help Dr. Elaine,<br>
> <br>
> Is there any way I can figure out the coordinates of each voxel?<br>
> <br>
> I know from mdanalysis, if one knows the voxel size (delta) and delta of one voxel cell, the voxel center coordinates can be calculated. Can I do the same way in ChimeraX?<br>
> <br>
> Best,<br>
> Tianming<o:p></o:p></span></p>
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