Author Archives: paolog

About paolog

homo technologicus cynicus

Running your own kernel from the LIBPF user interface on OS X

Posted on June 17, 2016 by paolog

During model development, you rapidly produce new versions of the calculation kernel (the command-line executable version of your models). The easiest thing to do to try them out is to run them from the LIBPF user interface. Here is a … Continue reading →

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Impressions from the sps ipc drives Italia 2016 fair

Posted on May 26, 2016 by paolog

The state of confusion that currently prevails when the Internet comes to manufacturing was confirmed at the sps ipc drives Italia fair that took place this week in Parma, Italy. The confusion starts from the terminology. If you view the … Continue reading →

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Debugging LIBPF applications with gdb

Posted on May 4, 2016 by paolog

GNU debugger (gdb) is the standard command-line debugger on many Unix-like systems for troubleshooting C++ programs. To prepare for debugging your application, compile it with debugging symbols enabled; for example assuming you want to debug Qpepper and use bjam to … Continue reading →

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Summary of the A&T fair, 2016 edition

Posted on April 21, 2016 by paolog

Here is the Affidabilità e Tecnologie (A&T) fair, 2016 edition (held in , Torino April 20-21 2016) summarized by three audiovisual documents: Robot drives train: Robot plays golf: Robot brews coffee:

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Bash on Windows 10

Posted on April 2, 2016 by paolog

This week at Build 2016, the yearly developer-oriented conference, Microsoft announced that Windows 10 will be able to run Linux’s Bash shell, by executing the native Ubuntu binary as-is. Don’t stop at the news headline though: this is not just … Continue reading →

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Modeling a pipe with a large pressure drop

Posted on March 30, 2016 by paolog

The Pipe model is a concentrated parameter model for pipes. The correlations it uses are applicable only for small pressure drops, i.e. less than 10% of the absolute inlet pressure. If the calculated pressure drop is larger than that, you’ll … Continue reading →

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Where is the SQL database plugin for ODBC (qsqlodbc.dll) in Qt 5.6 ?

Posted on March 22, 2016 by paolog

It looks like the SQL database plugin for ODBC (qsqlodbc.dll) is missing from the standard Qt 5.6 installer for Windows you download from http://www.qt.io/download-open-source. You’d expect to find it in C:\Qt\Qt5.6.0\5.6\msvc2015_64\plugins\sqldrivers\ where the sqlite, mysql and postgresql ones are found, … Continue reading →

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“api-ms-win-crt-runtime-l1-1-0.dll is missing” error with LIBPFonOPC on Windows Server 2012 R2 64 bit

Posted on March 7, 2016 by paolog

You may receive the error “The program can’t start because api-ms-win-crt-runtime-l1-1-0.dll is missing” when launching the LIBPFonOPC configurator 1.0. 2264 on a fresh install of Windows Server 2012 R2 64 bit. Related symptom: this error silently appears in the Setup … Continue reading →

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HOWTO make verbosity level accessible for users

Posted on February 23, 2016 by paolog

LIBPF’s  4 diagnostic levels allow the model developer to fine-tune the verbosity at a global, compilation, unit, function and class instance level. Of these, two (verbosityGlobal and verbosityInstance) are also available at run-time, but normally not for the model user. … Continue reading →

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Qt Data Visualization preview

Posted on February 22, 2016 by paolog

In the Qt Roadmap for 2016 they say “In addition, Qt 5.7 includes a lot of modules that have been previously available only with the commercially licensed Qt: … Qt Data Visualization – Versatile set of chart types for 3D … Continue reading →

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