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We do not have a user-exposed tool to compute exact map on the grid
(using n-gaussian approximation, that is the default in Phenix).
However you can calculate a Fourier map coefficients of very high
resolution (say 0.5-1A) and then convert it into actual map using
phenix.mtz2map; this should be a good approximation.<br>
<br>
Pavel<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 8/15/14, 1:19 PM, PC wrote:<br>
</div>
<blockquote cite="mid:69A50594500.000006BFpatrick.cossins@inbox.com"
type="cite">
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<div>I want map for this PDB which does not have the SF.</div>
<div><br>
</div>
So what should I do?<br>
<blockquote style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px;
BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<div class="msgHeaders">-----Original Message-----<br>
<b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:pafonine@lbl.gov">pafonine@lbl.gov</a><br>
<b>Sent:</b> Fri, 15 Aug 2014 13:09:51 -0700<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:phenixbb@phenix-online.org">phenixbb@phenix-online.org</a><br>
<b>Subject:</b> Re: [phenixbb] maps for PDB without SF's<br>
<br>
</div>
<div class="oldBody">
<div> Hello PC,<br>
<br>
what you get is not the electron density map but its Fourier
image of finite resolution. This is where the noise comes
from. So... I'm puzzled what surprises you (or what is your
question)?<br>
<br>
Pavel<br>
<br>
<div _class="moz-cite-prefix">On 8/15/14, 12:59 PM, PC
wrote:<br>
</div>
<blockquote
cite="mid:6978B562390.00000683patrick.cossins@inbox.com"
type="cite">
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Hi,
<div><br>
</div>
<div>I wanted to generate a map using calculate f(model)
with fake P1 symmetry.</div>
<div><br>
</div>
<div>The output is very noisy (blurred) when I open it in
COOT.</div>
<div><br>
</div>
<div>(NO there are no structure factors for this PDB
entry).</div>
<div><br>
</div>
<div>Thanks.</div>
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