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<p>Thank you Simon !</p>
<p>V.<br>
</p>
<div class="moz-cite-prefix">On 14.12.23 19:44, Simon Rit wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAF0oig2t7=VmjJ-hEVEtwJNBrQ7hjENhq9A6uPBBGhhFU0OmkA@mail.gmail.com">
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<div>Hi Vincent,</div>
<div>The RTK format for the description of phantom is not good.
What happens is that it expects one of three values (A, B or
C) to be 0 so that he knows the direction of the cylinder. I
would suggest to switch to Fobild's format which is now well
handled by RTK in opinion. See</div>
<div><a
href="https://web.archive.org/web/20070611224909/http://www.imp.uni-erlangen.de/forbild/deutsch/results/drasim.html"
moz-do-not-send="true" class="moz-txt-link-freetext">https://web.archive.org/web/20070611224909/http://www.imp.uni-erlangen.de/forbild/deutsch/results/drasim.html</a></div>
<div>From the command line, switch to it with the --forbild
flag.</div>
<div>Simon<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Dec 14, 2023 at
11:31 AM Vincent Libertiaux <<a href="mailto:vl@xris.eu"
moz-do-not-send="true" class="moz-txt-link-freetext">vl@xris.eu</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi
RTK community,<br>
<br>
I am getting unexpected results (see attached picture) when
designing a <br>
phantom.<br>
<br>
Here is my text file:<br>
<br>
[Box] A=70 B=15 C=4 z=0, x=0, y=0, beta=0,
gray=1<br>
[Cylinder] A=0.8 B=15 C=0.8 z=0, x=0, y=0,
beta=0, gray=10<br>
<br>
And the command I use for drawing:<br>
<br>
rtkdrawgeometricphantom -o phantom.mha --phantomfile test.txt
--spacing <br>
0.139 --dimension 1000<br>
<br>
I am expecting a cylinder across my box, but as you can see on
the <br>
attachment, the cylinder's radius decreases along its axis.<br>
<br>
Could someone please give me a clue on what I am doing wrong ?<br>
<br>
Many thanks,<br>
<br>
Vincent<br>
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