Matthias
Hi Jim,
you can use master or any other branch, but without warranty.
The usual approach (and the one favoured by GitHub) is: features are developed in branches. When they are considered stable enough they are integrated into the master (pull request). Hence the master is kind of "latest greatest", but with a certain risk of being spoiled. There are also forks from other user with their own masters and branches. Don't confuse them with the ones from the KLayout project.
But eventually, when the master is considered to have a sufficient quality, a release is made by creating a release tag (https://github.com/KLayout/klayout/releases). A release is a snapshot which is then turned into Windows binaries, Linux packages, PyPI wheels etc. This this is a lengthy process and I don't want to do this too often.
Matthias
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Hi @ryanke, As a rough guess, OASIS without CBLOCK compression takes about 3 times the file size as memory for loading, with CBLOCK compression that factor can be bigger - maybe 6 times. That is for 32bit coordinates. With 64bit coordinates that is…
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Hi @jiunnweiyeh, There is a RSS feed here: https://www.klayout.de/news.php. I usually place messages there for every new release. Best regards, Matthias
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I have never seen a technology that allows rotated vias. They will never come out exactly because the corners will finally snap to the manufacturing grid in undefined ways. Matthias
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Hi @ocasta, the code is based on the tiling processor. This class is described here: https://www.klayout.de/doc-qt5/code/class_TilingProcessor.html#k_1. The "script" is a simple expression notation that KLayout has built into. I'd not ca…
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Hi @alto, Yes, that is the way PCells are stored. But KLayout writes a copy of the PCell content to GDS. So when you open a GDS file without having the macro that serves the PCell, you will still get the full layout, but you cannot modify it. The…
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I see :) Initially I understood you mean the dimension objects in DXF. It does not look bad in my case ... but maybe that is only my hardware combination. I will try on other screens and printers. (Image) Does the problem also occur if you prin…
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Hi @jonathan, LStream is currently just a proposal, but I implemented the layout view part in KLayout for real-world applications. Right now, that subset is available for reading and writing and external references will be somewhat better supported…
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Hi @ryanke, First thing make sure you're using non-editable Layout objects. Editable layout object will take significantly more memory. When you create the Layout object, use import klayout.db as kdblayout = kdb.Layout(False)... Second, no, there…
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Hi @Niharika04, I assume your library is bound to a technology. When you use "library_by_name" without "for_technology", you will not see these libraries. "library_by_name" applies the name and technology filter. Omitt…
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Hmm ... I have a few samples with rulers and they look good to me. Do you have a sample file that shows this effect? Matthias
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Hi Jonathan, If you work on an alternative, you may be interested in that here: https://codeberg.org/klayoutmatthias/lstream. It's an open format that supports the idea of external library references among many other things. The replication mechan…
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Maybe you could simply write what your application is. That's probably easier to discuss. Here my replies: 1. Yes, a cell in a library layout can refer to another cell in that library. But that's a normal reference then, no library reference. Some …
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Are you an AI agent? I don't feel like taking to someone who tries to understand what I am writing. "width" is not work in progress. You have the wrong expectations. What do you call the width of a piece of wire made from a rectangle? It'…
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Is the other machine a different version maybe?
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@alto could you please provide some screenshots or some sample files? This description is not enough to understand your problem. I you ask for help here, please try to be helpful as well. There are good examples of nicely prepared requests in this f…
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Well, the problem is snapping. As GDS polygons can only be represented as multiples of the database unit (typically 1nm), the corners of the rotated rectangles cannot be represented exactly. Hence the corners will move and these gaps open. What you …
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Man, how I hate substituting for AI ... If you read the documentation of "LayoutView#current_layer" here: https://www.klayout.de/doc-qt5/code/class_LayoutView.html#method70 - it gives you a valuable hint: (Quote) That means, it's a prope…
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Why not trying the obvious? It's called "LayoutView#current_layer" ... Matthias
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I guess there is a whole field in computational geometry about that kind of approximation you want to achieve. KLayout is not a computational geometry library, but a practical tool. There is no such algorithm built into it. The trapezoid decompositi…
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Hi @blueman_44 and @alto, You're almost there :) Some magic already happens in nwell.nets. This method will select nets, but more importantly, it assigns the net names as properties to the shapes it delivers (and it also brings hierarchical subnet…
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Grml .. I see I need to establish more performance baselines. I'll check what's wrong with 0.30.7. Matthias
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Hi @klayanoob, I tried the script and it seems to do what it is supposed to. I had three layers, 1/0, 1/5 and 2/0. With the map instruction you give, they get mapped to 13/0 (=1/0 and 1/5) and 14/0 (=2/0). So what do you mean by "you do not re…
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You mean, these attributes are getters and you need a setter? :) Right now, there is no programmatic way to change them, but if you drop me a ticket on GitHub, I will consider that feature for the next minor release. I hope there are not too many l…
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Please try to rename KLayout's profile folder. It's located at c:\users\<youraccount>\KLayout. Rename this folder to something different or remove it. After that, KLayout should start. If is does, it means, something fishy was there in that fo…
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Hi Remco, I understand that you can't share the test case. That is quite common. Unfortunately I cannot give much advice without seeing the actual problem. A general debugging strategy is first to identify the step that causes the issue. You can t…
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Hi @Scafir, I made a lot of progress here. First, a general problem was related to netlist performance, which degraded in 0.30.6. It's addressed by https://github.com/KLayout/klayout/issues/2277, which brings down the netlisting times considerably…
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Hi @remco, you can upload files by packing them into a .zip archive. But 96GB memory is insane. Something is badly wrong here. I can hardly image a photonics mask that really takes such much memory to process in DRC. There are some pitfalls which…
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Hi @ChristianP, A rotation by any angle will induce snapping as @tomas2004 explained. I think his approach is the right one. Problem is that the rotation is "stupid" and does not remove the cut line before rotation. Using a short DRC sc…
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Hi Kazzz, thanks for your efforts to support Monterey! Does it make sense to upload the DMGs on the server or is okay to leave them in your place? Best regards, Matthias
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I am trying to reproduce the run. Variant "A" wasn't working for me, as the slotting rules need metal5, so I am picking variant "C". But even without, almost all time is spent in the "netlist" step. There was a ticket…