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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 &nbsp;map for this PDB which does not have the SF.</div>
      <div><br>
      </div>
      So what should I do?<br>
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        <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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              <meta content="INBOX.COM" name="GENERATOR">
              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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              <pre wrap="">_______________________________________________
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</pre>
            </blockquote>
            <br>
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      </blockquote>
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Verdana,sans-serif;color:Black;background:white;padding:3px;line-height:1.3em"><a
          moz-do-not-send="true" href="http://www.inbox.com/earth"><img
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            src="http://my.inbox.com/img/ftrs/earth.jpg" alt="3D Earth
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