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<p>Hi Konstantinos,</p>
<p>Data values in your datafile appear to be very small, around
10^-44 (see attached, Float32). I think there is still something
wrong in your conversion.</p>
<p>Best regards,</p>
<p>Thibaut</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 16/05/2017 00:18, Konstantinos P.
Chatzipapas, MSc wrote:<br>
</div>
<blockquote cite="mid:fcd2bd4916a1a29f404657e41281511b@upatras.gr"
type="cite">
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<p>Hi again,</p>
<p>Sorry about this. I am re-attaching the files. Something is
wrong in the previous ones. Question still the same. What is
wrong?</p>
<p> </p>
<p>Kind Regards,</p>
<p>Konstantinos</p>
<p> </p>
<p>Στις 15-05-2017 23:54, Konstantinos P. Chatzipapas, MSc έγραψε:</p>
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<p>Hello,</p>
<p>It worked, thank you very much. I have one more question.</p>
<p>I created the files I am attaching. There is something wrong
again. The reconstructed image is empty.. All black....</p>
<p>Can you help me on this?</p>
<p> </p>
<p>Many thanks,</p>
<p>Konstantinos</p>
<p> </p>
<p>Στις 15-05-2017 18:24, tmerlin έγραψε:</p>
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<p>Hi Konstantinos,</p>
<p>The out of range projection index errors usually means the
code can't correctly read the binary datafile as you said.
Judging from the values in your cdf file, I think something
went wrong during your conversion. Expected types are float
for the data, and unsigned integers (4 bytes) for time &
ids. I suggest trying something like this in your program:</p>
<p> uint32_t id1, id2,** timeMS; float** data;</p>
<p> // recover data</p>
<p> for (id1=0; id1<bins_elts; id1++)<br>
{<br>
for (id2=0; id2<nCrystalsTot; id2++)<br>
{<br>
fwrite((char*)(&timeMS[id1][id2]) ,
sizeof(uint32_t), 1, pFile);<br>
fwrite((char*)(&data[id1][id2]) , sizeof(float),
1, pFile);<br>
fwrite((char*)(&id1) , sizeof(uint32_t), 1,
pFile);<br>
fwrite((char*)(&id2) , sizeof(uint32_t), 1,
pFile);<br>
}<br>
}</p>
<p>Besides, I am not sure why your datafile header states
188811 events, while I would expect 107928 events from your
numbers (nb of projections * nb of pixels).</p>
<p>Best regards,</p>
<p>Thibaut</p>
<p> </p>
<br>
<div class="moz-cite-prefix">On 15/05/2017 12:55, Konstantinos
P. Chatzipapas, MSc wrote:</div>
<blockquote style="padding: 0 0.4em; border-left: #1010ff 2px
solid; margin: 0;">
<p>Dear users/developers,</p>
<p>I am trying to create a program that will write
experimental results to the appropriate .Cdf ascii format.
I am using this loop:</p>
<p> char buffer [20];<br>
sprintf(buffer, "CDF_CstrProj.Cdf");<br>
pFile = fopen (buffer, "w");<br>
for (id1=0; id1<bins_elts; id1++)<br>
{<br>
for (id2=0; id2<nCrystalsTot; id2++)<br>
{<br>
fprintf(pFile,"%6d ",timeMS[id1][id2]);<br>
fprintf(pFile,"%6d ",data[id1][id2]);<br>
fprintf(pFile,"%6d ",id1);<br>
fprintf(pFile,"%6d ",id2);<br>
}<br>
}</p>
<p>Where id1 is the projectionID (0-35) and id2 is the
pixelID (0-2997). Data are the counts. I am using integers
in data but I have also try it with floats. Then by using
a .Cdh I try to reconstruct. There is a problem there.
Probably castor-recon does not recognize the file correct,
because I am getting this fault repeatedly (the
"Projection index" only change:</p>
<p>*****
oIterativeAlgorithm::StepInnerLoopInsideSubsetLoop() ->
A problem occured while computing the projection line !<br>
***** iScannerSPECTConv::GetPositionsAndOrientations()
-> Projection index (538976288) out of range [0:35] !<br>
***** vProjector::Project() -> A problem occured while
getting positions and orientations from scanner !<br>
***** oProjectorManager::ComputeProjectionLine() -> A
problem occured while forward projecting an event !</p>
<p>I am attaching the file in order that you take a look and
help me.</p>
<p> </p>
<p>Thank you in advance,</p>
<p>Konstantinos</p>
<p> </p>
<div>-- <br>
<div class="pre" style="margin: 0; padding: 0;
font-family: monospace;">
<hr> Konstantinos P. Chatzipapas <br>
Physicist, MSc <br>
Faculty of Medical Physics <br>
<strong>University of Patras</strong> <br>
<br>
web page: <em><a moz-do-not-send="true"
href="http://www.physicsmag.com">Physics Magazine</a></em></div>
</div>
<p> </p>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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<pre class="moz-signature">--
Thibaut MERLIN -- PhD
Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90</pre>
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<pre class="moz-signature" cols="72">--
Thibaut MERLIN -- PhD
Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90</pre>
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