…and definitely not getting there. I’m still completely confused by the UI of the “Match Text Filter” component. Given a filter criteria, I’m never quite sure what Key/Value combo to select, and to make matters worse, the “Value” doesn’t remain highlighted, so if you don’t check “Show expression”,…

Hi Martin, It works, but it can’t be the right way. Parent::Child layer notation exists for a reason. I was able to get a result like this : [250201_IMG_Geometry in blocks-Filter by Parent-Child layer] Still not sure what I’m doing as I don’t get the difference between the “Contains text” and …

The one you mention works is this: [image] The same filter fails with an equality filter. I wouldn’t use the wildcard or contains filter when filtering the full layer name.

…and then there’s the whole cryptic option thing : [250201_IMG_Regex music] I’m amazed at how convoluted and confusing this filtering mechanism is…

I assume you know what regex is?

[image] Martin Siegrist: The same filter fails with an equality filter. What’s that ? [image] Martin Siegrist: I wouldn’t use the wildcard or contains filter when filtering the full layer name. Err… why ? You rather use a compound filter ; that doesn’t sound straightforward. Anyways…

I think it’s good to be as precise with the filtering. So when you know the full layer name, you don’t use a wildcard filter because the equality filter is more specific and doesn’t let through anything else but the exact match. Not sure how to explain any better.

[image] Martin Siegrist: I assume you know what regex is? No. I don’t feel I need to know this to perform such a simple task as filtering objects by layers. If I do, then maybe McNeel just made a mess of a simple thing.

[image] Martin Siegrist: I think it’s good to be as precise with the filtering. So when you know the full layer name, you don’t use a wildcard filter because the equality filter is more specific and doesn’t let through anything else but the exact match. Not sure how to explain any better. Yea…

[image] osuire: Err… why ? You rather use a compound filter ; that doesn’t sound straightforward. [image] The concatenated full layer name is not stored anywhere. Content information outputs parent and Layer.Name and that’s what I use to filter an exact layer match. :slight_smile: Layer.…

Struggling to filter block geometry by layer

Grasshopper

martinsiegrist (Martin Siegrist) February 1, 2025, 9:50am 2

When you filter by layer name, only use the child layer name.

You can filter by Layer.Parent too and use the logical and filter.

250201_MOD_Geometry in blocks-Filter by layer mrtn.gh (24.4 KB)

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Struggling to filter block geometry by layer

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