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    • C

      XYZ display
      Feature requests • • Cyril

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      Admin

      Hi @Cyril, thank you very much for the idea!

    • A

      Publishing an element (segmentation fault while packing)
      Apps • publishing • • Andrii

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      A

      @oneangstrom

      Yes. Firstly Debug, then Release.

    • E

      Applying rotations to my custom model
      Modeling • • Elisa

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      E

      Dear Stephane,

      Yes, we have atoms. The 0.8.0 solution will be the best long-term, as we are dealing with large systems and FPS drop a lot when translating or rotating, but for now I will check the ParticlePositionChanged event.

      Thanks!!

      Elisa

    • Radoslaw

      SAMSON crashes while opening pdb files
      Getting started • • Radoslaw

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      DmitriyMarin

      Dear @Radoslaw ,
      We have fixed an issue in SAMSON which was causing a problem with OpenGL context on Intel integrated graphics processors. We hope it might as well resolve the issue you had and we would be grateful if you could try re-installing SAMSON to check whether it fixes it.

    • Ivan

      SAMSON with hybrid graphics cards (Intel/Nvidia)
      Getting started • • Ivan

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      DmitriyMarin

      Dear @Ivan ,
      Thanks to issues raised on the forum, we have fixed the issue in SAMSON causing problems with the viewport when using Intel integrated graphics processor. This issue might have been causing the problem you have posted in this thread. The new installation of SAMSON should resolve the issue.

    • R

      Solved Problem of graphics card after SAMSON installation on Ubuntu 18.04 (Intel processors)
      Getting started • • Robert

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      DmitriyMarin

      Hello @Robert ,
      Thanks to your feedback, we have fixed the issue in SAMSON when using Intel integrated graphics processor. You can try installing SAMSON.

    • J

      Error while trying to build a Samson element : "The name cmake is not recognize as a command, function or file name..."
      Getting started • • Jean-Baptiste

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      DmitriyMarin

      Dear @Jean-Baptiste ,

      Thank you for your interest in SAMSON!

      According to your screenshot, I think the problem here is due to an unnecessary newline character in the command you past in the PowerShell terminal due to copying.

      Please, note: we recommend not to build your Elements in the SAMSON Debug folders - you should use a dedicated folder to develop your SAMSON Elements

      If you have -DQT5_CMAKE_INCLUDE_DIR environment variable defined in your system you can compile for Visual Studio 2017 like this:
      cmake -DSAMSON_SDK_PATH="C:\Program Files\NANO-D\SDK\0.7.0" -G"Visual Studio 15 Win64" ..
      else like this:
      cmake -DSAMSON_SDK_PATH="C:\Program Files\NANO-D\SDK\0.7.0" -G"Visual Studio 15 Win64" -DQT5_CMAKE_INCLUDE_DIR="C:\Qt\5.9.3\msvc2017_64\lib\cmake" ..

      You can copy the command from here.

      You can also check whether the cmake is defined in your system by e.g. checking its version number:
      cmake --version

      I would also recommend to follow the updated tutorial on Building on Windows in the Developer guide.

    • E

      Serialization/Unserialization issues
      Modeling • • Elisa

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      E

      Hi,

      I think I found the problem. Some initialization functions in the constructor of my class were overriding the unserialization. I tried to make a quick fix but when I do static casts in the unserialize function, SAMSON is crashing, so I will modify my constructor and check, it will take a bit though.

      Thanks for your help!

    • E

      Qt dependencies for Windows 10
      Getting started • • Elisa

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      E

      Hi Dmitriy,
      My CMakeLists for the Python Bindings version is like you posted above, so I'm not linking in the debug mode. My other branches don't have any reference to Python in the CMakeLists, so they are not linking neither.

    • Ivan

      Open PDB protein model
      SAMSON • • Ivan

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      Ivan

      Thank you, Dmitriy. I will try later. I just tried to open pdb file in Windows, and in status bar got the message, that it "can''t open" my file. I will try to put the log here a bit later.

    • DmitriyMarin

      Installing or running SAMSON on Ubuntu 17.04 and later versions
      Getting started • • DmitriyMarin

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      S

      Installation is done.

    • A

      UFF setting to Hydrogenated DWCNT
      SAMSON Extensions • • Andrea

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      Stephane

      Hi Andrea, sorry for the delay. Typization is normally performed automatically (this is a benefit of this SAMSON Element, as described in the paper Artemova, S., Jaillet, L., & Redon, S. (2016). Automatic molecular structure perception for the universal force field. Journal of computational chemistry, 37(13), 1191-1205.). The typization functions are there when you know for sure that you would like to use a different typization, but even then you should refer to the original UFF paper to make sure this is what you want.

    • E

      Publishing an element questions (license + co-development)
      Apps • • Elisa

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      E

      Dear all,

      Thanks for the answers. it was very helpful, we would probably then choose BSD-3 to make sure we stay compatible with SAMSON.

      Best regards,

      Elisa

    • Y

      How can I download 'academics' elements?
      Getting started • • Yongjun

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      Admin

      Hello, could you please contact us by email (please reply to the registration email) so we can see what we can do?

      Thanks!

      The SAMSON team

    • A

      Lennard Jones simulator, epsilon value
      Feature requests • • Andrea

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      DmitriyMarin

      Dear @Andrea ,

      We have updated the Lennard-Jones Interaction Model SAMSON Element, now you can set the smaller epsilon parameter. The SAMSON Element should be updated automatically once you launch SAMSON with an Internet connection.

    • C

      Basic atom display for big systems
      Feature requests • • Cyril

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      DmitriyMarin

      Rendering of spheres is fast, it is done on GPU, rendering of disks should not make it much faster. It is the Document view, which makes it slower for bigger systems, but it will be faster in the next SAMSON version.

      If you want to see the flat visualization of atoms, you can modify the rendering preferences via changing the lightning preferences in SAMSON (see User guide: Visualizing. Lightning section). Basically, in the SAMSON preferences (Ctrl/Cmd+K) go to Rendering > Lightning: set the light intensity for first and second lights to zero; set the ambient light to 1 and the Fresnel intensity to 0.

    • K

      STL Exporter?
      Feature requests • • Kava

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      DmitriyMarin

      Hello @Kava ! Thank you for your interest in SAMSON. As far as we know, no one is currently working on the STL exporter. But this would be a really nice feature. For the efficiency and speed reasons, the Gaussian surface is generated on GPU. Therefore, we don't have direct access to resulting shapes and it won't be that easy to export these shapes. We will see what we can do.

      Another possibility is to program the Gaussian surface on CPU yourself and export the resulting shape in the STL file (see Documentation for developers).

    • C

      Crystal expander
      Feature requests • • Cyril

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      DmitriyMarin

      Thank you for the suggestion, @Cyril !
      Yes, for now, it is possible only with an importer for crystallographic .cif files. There is a possibility to replicate crystals thanks to the Crystal Creator App, but it does not expand them periodically with bond connections. We will see what we can do.

    • E

      Editor names not showing in GUI
      Apps • • Elisa

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      E

      Thanks!! Solved!

    • Laëtitia

      Asynchronous event with QtConcurrent
      GUI • • Laëtitia

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      Laëtitia

      Hi Stephane,

      thanks for your answer, I'll do that then.

      Best

      Laëtitia