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<p>Hi Moritz,</p>
<p>Many thanks for all your remarks and suggestions.</p>
<p>To be honest, we just tested once the compilation of CASToR with
ROOT on windows (using MSVC 2015 and nmake at the time). As ROOT
is only used in CASToR to convert data from GATE, and GATE is only
available on Unix systems, we never focused on making the
ROOT-related toolkits run on windows, so this is why some features
are lacking for windows compilation. <br>
</p>
<p>As you suggested, using a public git repository for bug fixes and
development would be a great idea, this is definitely something we
plan to discuss. As Simon said, we are currently working on a next
version which will be available soon. We will then discuss how we
can provide more helps to developers and access to the development
versions of the code, and come back to you.<br>
</p>
Again, many thanks for your work and all your remarks!<br>
<br>
Best regards,<br>
Thibaut<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 14/02/2018 16:49, Moritz Schaar
wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Hi Simon,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks for the
reply. I actually thought my mail got “lost” as I did not
receive any notice via the mailing list.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">However, I am
not very familiar with mingw but maybe this is an option
with fewer traps.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If you have an
internal release with these binaries and need a novice to
test it, feel free to contact me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am
investigating CASToR for research and educational purpose.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Currently I am
elaborating which toolkit could be good starting point for
our group to help us build some sort of reconstruction
framework.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We mainly focus
on GATE simulations for PET and SPECT data and e.g. STIR
seems way bloated for us, even though it has interesting
things like scatter correction already implemented.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Furthermore, I
would like to have students working on smaller projects
where they should integrate new parts of their
reconstruction in an already existing program and easily see
results.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I really like
the structure how CASToR is built with modules and different
layers of abstraction, even though it takes some time to get
familiar with the internal design.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Do you plan to
open a (public) repository (git?) or something like this
where one can submit issues and bug fixes? At the moment
everything seems a bit hidden.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">For example I
would like to recommend to extend the GATERootToCastor
toolkit to allow a more flexible selection of events.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Let’s say I am
interested in seeing the direct impact of object scatter to
different reconstructions, then I would like to filter out
randoms and intercrystal scatter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Maybe this is a
very specialized area of application and of course we can
extend this on our own but I think its worthwhile mentioning
it here.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="DE">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="DE">Moritz<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="DE"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="color:windowtext"
lang="DE">Von:</span></b><span
style="color:windowtext" lang="DE"> Castor-users
[<a class="moz-txt-link-freetext" href="mailto:castor-users-bounces@lists.castor-project.org">mailto:castor-users-bounces@lists.castor-project.org</a>]
<b>Im Auftrag von </b>Simon Stute<br>
<b>Gesendet:</b> Mittwoch, 14. </span><span
style="color:windowtext">Februar 2018 13:09<br>
<b>An:</b> <a class="moz-txt-link-abbreviated" href="mailto:castor-users@lists.castor-project.org">castor-users@lists.castor-project.org</a><br>
<b>Betreff:</b> Re: [Castor-users] CASToR build on
Windows platform<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Hi Moritz Schaar !<br>
<br>
Better late than never to thank you for that kind email !<br>
<br>
Thanks for spotting all these errors. We will fix them in
the next release which we are currently preparing.<br>
I think that nobody never used ROOT with CASToR under
Windows ...<br>
<br>
I personally use the mingw-w64 cross compiler to compile
CASToR for Windows 64 bits from a linux distribution.<br>
We thought about distributing these binaries for Windows
users.<br>
Finally, the datafile are now managed using file mapping so
reconstructing huge files without much memory won't be a
problem anymore.<br>
<br>
If I may ask, for what purpose are you using CASToR ?
Whatever the reason, thanks for using it !<br>
<br>
Best<br>
Simon<br>
<br>
<br>
Le 02/02/2018 à 11:53, Moritz Schaar a écrit :<span
style="font-size:12.0pt"><o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hi CASToR users and developers,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I recently started working with CASToR
and managed to compile it for Ubuntu and Windows. As I am
forced to work with Windows, this was my primary targeted
platform (Ubuntu VM just for cross-checks).<o:p></o:p></p>
<p class="MsoNormal">However, I managed to build a 32bit
release with Windows 7 64bit, Visual Studio 2017 (v15.5.5),
CMake 3.9.6 and pre-compiled ROOT binaries for Visual Studio
2013 (“root_v5.34.36.win32.vc12.zip”).<o:p></o:p></p>
<p class="MsoNormal">During this journey I discovered a couple
of errors with CASToR’s (CMake) configuration files which I
would to draw your attention to.<o:p></o:p></p>
<p class="MsoNormal">This is probably not the right place to
submit this, but I could not find any bug tracker or
repository to issue cases.<o:p></o:p></p>
<p class="MsoNormal">Due to my limited knowledge with CMake I
just mention issues here instead of offering true solutions.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">My issues:<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">1)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->The default CMakeLists.txt of
CASToR provides two forks, one for “win32” and one for
unix-based system.<o:p></o:p></p>
<p class="MsoListParagraph">Whereas the unix fork cares for
flags as “CASToR_BUILD_GATE_UTILITIES” and checks if
“CASToR_ROOT” is set (which is required to read ROOT files),
the win32 fork does not check this.<o:p></o:p></p>
<p class="MsoListParagraph">Hence, the build will fail due to
missing ROOT libraries.<o:p></o:p></p>
<p class="MsoListParagraph">My solution to this was to copy
the parts from the unix part to the corresponding win32
section and it worked. Maybe this is not the way it is
supposed to be, please check.<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">2)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->ROOT for Windows can only be
built in 32bit mode, as the 64bit version would require a
lot of changes to ROOT and the underlying libraries (see
<a moz-do-not-send="true"
href="https://root-forum.cern.ch/t/native-windows-64-bit-build/9102/27">https://root-forum.cern.ch/t/native-windows-64-bit-build/9102/27</a>).<o:p></o:p></p>
<p class="MsoListParagraph">Therefore, whenever a windows
platform is detected, the compiler should be force to 32bit
mode and the CASToR build as well (see variable
“CASToR_64bits”).<o:p></o:p></p>
<p class="MsoListParagraph">At least some prominent error
should be displayed if this is easier to implement.<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">3)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->The “FindROOT.cmake” file you
provide in “cmake-modules” only works for unix-systems.<o:p></o:p></p>
<p class="MsoNormal"
style="margin-left:18.0pt;text-indent:18.0pt">Here, the
calls to ${ROOT_CONFIG_EXECUTABLE} in the “execute_process”
instructions do not work for windows as the “root-config”
file cannot be executed.<o:p></o:p></p>
<p class="MsoNormal"
style="margin-left:18.0pt;text-indent:18.0pt">I adjusted
this section by borrowing parts from here:
<a moz-do-not-send="true"
href="https://git.fangmeier.tech/caleb/TTTT/src/master/cmake/FindROOT.cmake">https://git.fangmeier.tech/caleb/TTTT/src/master/cmake/FindROOT.cmake</a><o:p></o:p></p>
<p class="MsoNormal"
style="margin-left:18.0pt;text-indent:18.0pt">Again, I do
not know if this is the way to go but it works for me.<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">4)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->When using CASToR_ROOT and
building in 32bit mode using Visual Studio 2017, this still
fails due to some weird error namely:<o:p></o:p></p>
<p class="MsoListParagraph">path_to_my_root_build\include\tvirtualx.h(183):
error C2059: syntax error : 'constant'<o:p></o:p></p>
<p class="MsoListParagraph">I nailed this down to a ROOT bug
submitted several years ago:<o:p></o:p></p>
<p class="MsoListParagraph"><a moz-do-not-send="true"
href="https://sft.its.cern.ch/jira/browse/ROOT-3158">https://sft.its.cern.ch/jira/browse/ROOT-3158</a><o:p></o:p></p>
<p class="MsoListParagraph">The solution is to add the line
“#include "Windows4Root.h" right before “#include
"TCanvas.h" in the file:<o:p></o:p></p>
<p class="MsoListParagraph">castor_v1.2_0\source\include\management\gDataConversionUtilities.hh<o:p></o:p></p>
<p class="MsoListParagraph">I do not know what consequences
this has.<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">5)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->One small cosmetic issue
(maybe it is a real issue but I did not have an problems
with this):<o:p></o:p></p>
<p class="MsoListParagraph">Probably both lines of
“add_definitions( /DCASTOR_ROOT )” in the unix-fork of the
CMakeLists.txt should be replaced with the hyphenated
version (-DCASTOR_ROOT).<o:p></o:p></p>
<p class="MsoListParagraph">At least this is the case for all
other flags (-DCASTOR_MPI, -DCASTOR_VERBOSE et.c) in this
section. Maybe the compiler will also handle the slash
version.<o:p></o:p></p>
<p class="MsoListParagraph"> <o:p></o:p></p>
<p class="MsoNormal">Long story short, the build now works and
the results of the executables look promising. Nevertheless,
due to the 32bit memory restrictions, this CASToR build is
suboptimal.<o:p></o:p></p>
<p class="MsoNormal">I now plan on using a 32bit release to
convert my GATE geometry data and the corresponding ROOT
simulation files into CASToR data files.<o:p></o:p></p>
<p class="MsoNormal">In addition, I’m going to build a 64bit
release as well and develop my own stuff.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Bottom line: You guys did an amazing job
and I really like what v1.2 offers. Keep up the good work!<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b><span style="color:#145A6E">Yours
sincerely,</span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="color:#145A6E">Moritz
Schaar</span></b><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></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)
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