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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Thank you!</p><p class=MsoNormal>Best,</p><p class=MsoNormal>Yangqi</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:meng@cgl.ucsf.edu">Elaine Meng</a><br><b>Sent: </b>Friday, August 17, 2018 10:01 PM<br><b>To: </b><a href="mailto:yangqi.gu@yale.edu">BuddySphinx</a><br><b>Cc: </b><a href="mailto:chimera-users@cgl.ucsf.edu">chimera-users@cgl.ucsf.edu</a><br><b>Subject: </b>Re: [Chimera-users] Measure the cross section of an EM map</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi Yangqi,</p><p class=MsoNormal>You could place markers on opposite sides of the density contour surface, then measure the distance between the markers.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For marker creation/placement, see Volume Tracer (in menu under Tools… Volume Data):</p><p class=MsoNormal><http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/volumepathtracer/framevolpath.html></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For distance measurement, markers are treated the same as atoms. One way to do the measurement is to Ctrl-click on one marker to select it, then Shift-Ctrl-doubleclick on the other one to also select it and show context menu with a choice to measure the distance.</p><p class=MsoNormal><http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/structuremeas/structuremeas.html#distances></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I hope this helps,</p><p class=MsoNormal>Elaine</p><p class=MsoNormal>-----</p><p class=MsoNormal>Elaine C. Meng, Ph.D. </p><p class=MsoNormal>UCSF Chimera(X) team</p><p class=MsoNormal>Department of Pharmaceutical Chemistry</p><p class=MsoNormal>University of California, San Francisco</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>> On Aug 17, 2018, at 6:53 PM, BuddySphinx <yangqi.gu@yale.edu> wrote:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Dear Chimera users,</p><p class=MsoNormal>> I am trying to measure the diameter of my filament based on the EM volume. I am wondering which function I can use to measure the cross-section of it?</p><p class=MsoNormal>> Best,</p><p class=MsoNormal>> Yangqi</p><p class=MsoNormal>> </p><p class=MsoNormal><o:p> </o:p></p></div></body></html>