dick_freebird
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I've often run into a behavior where pop-ups instead "pop under" displayed windows, and have to figure out that it's happened and is waiting for something (hanging up the rest meanwhile). Not just klayout. Not just free tools either. I th…
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I've observed klayout (like many other tools) will auto-number-append same-named cells if you pull them into an existing database. This is a good thing because you don't know a priori that two same-named cells from two databases are in fact the sa…
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I don't think that layout is the place for adding "tolerances". Layout is all ideal polygons and such. Tolerances come in during processing and arrive embedded in the components afterward. Model the geometry dependence of tolerances where…
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It would be great if answers / examples came back as well....
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Whether they are series or parallel depends on whether the endcaps are the same net or different. The netlisting appears to think they are the same net. But "why?" is probably the question. Now there's something funny about the two end…
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Would it not be possible to read back, manipulate and write (not append) the path to "wherever" just as if it was the first time? There has to be some "de-cruft" facility?
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This looks really interesting. Especially to folks who might like to use the 3D view for the starting point of a TCAD mesh. I know some of those. So question that comes to mind is, can the displayed "3D displayed in 2D" image be export…
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I have a question, which I can't recall whether I've asked directly. That is, is there a logging of the interactive command stream, from which series of user actions turned into native commands could be "harvested"? Maybe even in a form …
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You mean like this? (Image)
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Yeah, I've never seen a "select by a two-body- interaction-feature" nor a snap-to (I'd guess the pre-selection logic may be common?). But I'd bet some smart guy could make a script that does that. Here's a thought. How about a ruler tha…
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I am wondering whether in the GDS data, shapes' sequence of creation has any relation to their position in the local data structure? One might imagine so. Of course this is not a real "timestamp". But maybe you could read from the botto…
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Hi, Matthias, No, I was thinking of the low level devices and ways to declare that such-and-such feature is such-and-such pin, in the extraction phase. Also, how to assert that a particular "TANK" is a specific device type using texts rat…
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I am looking forward to a robust discussion of methods. Especially methods which allow to "assert" a connectivity by some placed information rather than by mask layer Booleans alone ("derived" connectivity).
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Background color can be set in File>Setup: (Image)
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If you load the layout with no technology (or even with, I believe) all layers present in the database will be populated in the layers list. But that helps none if the technology has more layers, but the layout does not. I wonder if the DBs for {w…
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There's a setting somewhere that lets you declare a pixel-radius for selection "snap". Or was. Have you looked at whether this is still present, was ever changed from default (I bumped mine up to 8 pixels to ease the problems with grabbi…
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How did you get your layers? If you got them by streaming in a GDS file for a (say) standard cell library bundle, those cells may have been developed with a rule to use no more than the lowest three levels (to optimize routability) and were jus…
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OK, so is there a way to dump to text file, or some documentation which lists all of the "keys", their purpose / functionality and their allowed values? I'm sure that there are many and that many may be obscure, but people might like to c…
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If you are at liberty to change / add layers, or to use (text*object) logic to drive recognition, you might add a feature to the dogbone region that invokes the auxiliary rule. Don't ask me about syntax, I don't know nuthin'.
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I think it's down in Edit>Options?
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Your dogbone element looks the opposite of dogbone FET active areas that I have seen.
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It is worth asking, how someone could specifically change the default behavior. Like in a .klayoutrc entry of proper syntax? Or some other spot in the "init chain"? Is there a way to dump all settings that would lead to that syntax? Or …
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I was thinking more of a common CMOS case where "a" FET is made up of multiple gate stripes, and in some PDKs each gate-stripe is extracted as its own device, while schematic shows only one; the layout might have (say) four stripes. "…
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OK, so I must ask (in lieu of reading deeply for my own edification): does LVS include a "permute parallel" ability, with rules by device-type, and is it only stymied by the "parallel elements" being under hierarchy? If yes, do…
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I suggest trying to find the packages "manually" at the purported source. There might be simple issues like a version-increment that "breaks" a hard coded path in the installer, or a stale installer you happened to grab? Too ba…
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Not sure this is helpful, but seems a lot simpler to just "Show All" or "Show Only Selected" in the layer window, and Alt-Pr-Scrn? I mean, even invoking the script takes more keyboard / mouse activity than that. But I'd expect…
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Can't say I know anything about anything, but this: "The layer id would be 10^9+1." makes me wonder about stuff like: * can this expression be evaluated, if indeed it's put in that literal form to "whatever receives it"? * …
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Yeah, I am "encountering" Virtuoso again here too... my approach is to use Virtuoso to spit out the geometry- specific layouts for the transistors, stream out that "palette", then use klayout for the actual layout work and then …
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OK, chased this down to something a bit peculiar. The manual says you have to "Don't forget to click "Apply" to take over the current settings." Turns out that "OK" (which I was using instead) -does not- perform the …
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I use klayout for business, from home. I would like to see add-ons have the same liberal licensing as the platform. Ideally, just copy it.