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Matthias

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Matthias
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  • Hi Steven, again, without a sample I can hardly say anything. Instances are not necessarily created when reading DEF. You say, you don't have LEF, so where should instances come from? Matthias
    in Import DEF: "Invalid orientation specification" Comment by Matthias April 2017
  • Hi Dominik, I have not tested the code myself since your version wasn't complete. Maybe you can paste or publish your real version in some other way so I can try that. Anyhow, _destroy is not mandatory, so without it should do too. But in general,…
    in Antenna Ratio calculation Comment by Matthias April 2017
  • Hi Dominik, the reason why the tiling processor helps is that it will free memory immediately while in Ruby, the garbage collector will do this occasionally. You can however, enforce memory release with the "_destroy" method. Looking at …
    in Antenna Ratio calculation Comment by Matthias April 2017
  • Hi Dominik, I have some doubts whether this code is correct. Where is the gate area used? Maybe I am missing something - if you use Markdown markup (four blanks in front of code lines), the code will be easier to read. Basically a specific rule li…
    in Antenna Ratio calculation Comment by Matthias March 2017
  • Hi David, yes, on Linux there is no difference between a console and GUI application. Just run klayout with -b and it will return when it's finished. You can also evaluate the exit status to check for errors. On Windows, you can try compiling as a…
    in Runing scripts from the command line. Comment by Matthias March 2017
  • Hi Steven, I think I can reproduce the issue and tried to fix. When reading the spec again I assume there is another issue hidden behind that one: if the wire is continued, it needs to be continued at the point of the via. See my comments on GitHub…
    in Import DEF: "Invalid orientation specification" Comment by Matthias March 2017
  • Hi David, "Ruby" is just a synonym for "a reasonable language" :-) Python will do as well. The issue you see with the .exe returning immediate is because "klayout_app.exe" is built as a GUI application. On Windows, an…
    in Runing scripts from the command line. Comment by Matthias March 2017
  • Hi Jaspreet, that's not your code. It's just the first two lines. Where is everything else? Matthias
    in Help with selecting objects Comment by Matthias March 2017
  • Hi Vivek, that will happen if the database units of the layouts are different. In general you should make sure you're working with a common database unit. Please check whether this is the case and correct that by saving the layout with a different…
    in Cell Copy Scaling Issue Comment by Matthias March 2017
  • Hi chhung, the "semi-hierarchical" approach is a very weak approximation, so please don't expect the same results as "hierarchical=true". It is valid only, if all inputs for an operation are available within the same cell and if…
    in Semi hierarchical layer operations via RBA/DRC code Comment by Matthias March 2017
  • Hi Stefan, that's not related to not having LEF. I assume a reader bug or maybe the specification got updated. I have limited access to DEF sample and the variety of flavours is overwhelming, so I'm depending on your inputs. Could you provide a (re…
    in Import DEF: "Invalid orientation specification" Comment by Matthias March 2017
  • Hi chhung, Setting the "hierarchical" flag to true will make the boolean collect all shapes include the ones from the child cells. That's what we don't want to do if we iterate over the cells independently. And regarding parallel runs: I…
    in Semi hierarchical layer operations via RBA/DRC code Comment by Matthias March 2017
  • Hi David, yes, that's right. And of course that should be more clearly indicated. Actually the only format supporting user properties in all flavours is OASIS. GDS2 only supports properties with integer keys and string values (while everything wil…
    in Cell - User Properties, Save/Load to GDS Comment by Matthias March 2017
  • Hi Lukas, you're right. This feature is basically missing. Internally that's the "is_dirty" flag. It should be straightforward to implement. I have filed an issue here: https://github.com/klayoutmatthias/klayout/issues/7. Kind regards, …
    in File | Save Comment by Matthias March 2017
  • Hi chhung, "semi-hierarchical" mode is not available for DRC. I can be emulated with RBA, but it's easier with the upcoming 0.25 version. For this version there will be a constructor RBA::Region that takes a Shapes container: lv = RBA::L…
    in Semi hierarchical layer operations via RBA/DRC code Comment by Matthias March 2017
  • Hi Anton, sorry, I think I caused some confusion because of a copy/paste error in the Image class documentation. "get_pixel(x,y)" can to be applied to *monochrome" images only. For color images, it will always return 0. To get the p…
    in Incorrect pixel reading in renamed *.tif image. Comment by Matthias March 2017
  • Hi Chris, I wish I could give a better message in this case :-) But that's actually a deeply buried assertion which is a general hint that something is inconsistent. Matthias
    in Internal error: mp_v->is_used (m_n) was not true Comment by Matthias March 2017
  • Hi Anton, thanks for providing this workaround and for reporting this problem. Frankly, I'm not aware of this topic. Can you briefly describe the issue? If I understand it correctly, certain TIF files are not read properly and the solution consist…
    in Incorrect pixel reading in renamed *.tif image. Comment by Matthias March 2017
  • Maybe ... but that's all a lot of effort and I'm tired. No offence meant. Matthias
    in Klayout doesn't start with ruby 2.3 (fedora 25) Comment by Matthias March 2017
  • Ah .. right. The "cm_..." functions are stupid and don't report status or similar. They are slots too, so return values are not feasible. Errors will also not become visible to the code by the way. Only a message box will be shown. You ca…
    in File | Save Comment by Matthias March 2017
  • Hi Lukas, I stand corrected - Macros are associated with a technology. Libraries are not (currently). The focus of technologies wasn't libraries so far, so a library is not a true technology component yet. That's also the reason why tech/xxx/librar…
    in "Manage Technologies" with Libraries Comment by Matthias March 2017
  • Hi Lukas, I have not considered to unload PCell libraries so far. Basically it's possible, but the implications are severe and it will be difficult to catch potential interference scenarios. And once something is loaded into the Python interpreter …
    in "Manage Technologies" with Libraries Comment by Matthias March 2017
  • Hi Lukas, The "File/Save" function can simply be triggered with RBA::Application::instance.main_window.cm_save (the cm_... functions are the ones that are tied to the menus, so by calling them you do exactly when the corresponding menu …
    in File | Save Comment by Matthias March 2017
  • Hi Chris, this message basically says that KLayout can't find an object it likes to iterate over. This can happen if you modify the objects "substantially" while iterating over them. Setting a property is a "substantial" modific…
    in Internal error: mp_v->is_used (m_n) was not true Comment by Matthias March 2017
  • Hi Wicky, Here are some recommendations: * Make sure you are using Viewer mode. Edit mode takes much more memory - specifically in case of OASIS. * Use Linux with 64bit. That's the platform of choice when it comes to high performance. No freezing …
    in Large OASIS File Comment by Matthias March 2017
  • Hi, if you build and run KLayout, you will find an example and some documentation in the built-in help in the chapter about the NetTracer class. It's not available as public web page yet. Matthias
    in Net Tracer questions Comment by Matthias February 2017
  • Hi Anton, that's a reasonable to do it. I'll look into the threading approach, but not with high priority. KLayout uses a similar approach internally which is delivered by the progress reporting feature. But with C++ the overhead of processEvents …
    in Macro-development specific behaviour. Gui freezes due long computations. Comment by Matthias February 2017
  • I have created an issue on GitHub: https://github.com/klayoutmatthias/klayout/issues/4. Matthias
    in Show Hide Image Overlay Comment by Matthias February 2017
  • Hi, you're right, a global hide/show images feature is missing. It's extremely easy to script however: # show all imageslv = RBA::LayoutView::currentlv && lv.each_image { |image| image.visible = true } and # hide all imageslv = RBA::Lay…
    in Show Hide Image Overlay Comment by Matthias February 2017
  • Hi, This is the pointer: https://github.com/klayoutmatthias/klayout/issues/2. Matthias
    in DRC using rounded_corners Comment by Matthias February 2017
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