Richi's blog

Category: Work

  • cmake with MSVC

    I have used cmake for a couple of years with my hobby projects, and I love it. It is a cross platform meta build system. Like with Qt, people tend to first think that “cross platform” is the main feature. But like with Qt it’s actually one great feature amongst many others. It brings so […]

  • Optimizing compile time of a large C++ project

    The codebase of our PointLine CAD is certainly quite large. sloccount calculated roughly  770’000 lines of C++ code. I know, this is not a very good metric to describe a project, but it gives an idea. Over time the compile time steadily increased. Of course we also added a lot of new stuff to the product. […]

  • OpenCL First Steps

    There is an increasing noise about GPGPU computing and how much faster than CPU (even parallel) it is. If you didn’t hear about all that, GPGPU is about using the computer’s graphics card(s) to do general purpose computations. The key to the performance lies in the parallel architecture of these devices. From what I read, […]

  • Mixing boost versions –as-needed

    Some linux distributions defaulted to use the –as-needed linker flag for a while. Ubuntu tried it in natty, but then reverted. Now with oneiric, it really is enabled by default. I ran into this when one of my packages wouldn’t compile on oneiric. I always got linker errors with boost::filesystem and boost::system. Between natty and […]

  • Time Tracking with RFID on BORM ERP

    Before I discovered what my Bifferboard really is, I almost disposed it, but now It found a new purpose. It’s a networked rfid Terminal for time tracking on our BORM ERP. I use a simple python script on the device because it’s easier to experiment on a device where I would rather not compile too […]

  • PointLineWeb research prototype

    Google employees can spend 20% of their working time for their own projects. We at cubx (The CAD development department recently split from BORM) have now something similar. We get to spend every second friday afternoon for some projects of our own. The only restriction is that it has to do with computer graphics. I […]

  • Propagate deletion of C++ Objects

    Last year, I spent some time rewriting internals of how groups are handled in our CAD software. Before that, groups were just to help with the selection of elements that belong together. The grouping was only one level deep, and the elements were organized flat on the document. All the calling functions had to uptate […]