Basically I want all generic annotations form a (drafting) view. Found these and strung them together- but not seeing why this isn’t returning generic annotations. Sample file and DYN attached. Lambda is some kind of magic I don’t fully grasp yet. and the system predicate- heck this whole line is a bit of a mystery but I adapted it to get all generic annotations in the project.: filterAnnot = System.Predicate[System.Object](lambda x : x.Family.FamilyCategory.Name == "Generic Annotations") Here is my little function: import clr import System import System.Collections.Generic from System.Collections.Generic import List clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * clr.AddReference("RevitServices") import RevitServices from RevitServices.Persistence import DocumentManager doc = DocumentManager.Instance.CurrentDBDocument def GetDraftingViewID(strName): ##https://forums.autodesk.com/t5/revit-api-forum/view3d-collector/td-p/5277451 DraftingViewsList = FilteredElementCollector(doc).OfClass(ViewDrafting).ToElements() ##DraftingViewTemplates = [v.Id for v in DraftingViewsList if v.IsTemplate == True] DraftingViewsList = [v for v in DraftingViewsList if v.IsTemplate == False and v.Name == strName] #DraftingViewsList = [v for v in DraftingViewsList if v.Name == strName] return DraftingViewsList[0] viewDraft = GetDraftingViewID("bar") ##https://forum.dynamobim.com/t/how-to-get-all-annotation-elements-in-active-view-section-marks-elevation-tags-etc/18716/4 filterAnnot = System.Predicate[System.Object](lambda x : x.Family.FamilyCategory.Name == "Generic Annotations") symbAnnot = List[Element](FilteredElementCollector(doc, viewDraft.Id).OfClass(FamilySymbol).ToElements()).FindAll(filterAnnot) OUT = symbAnnot DYN: Sample-Generic-Annotation-Design-Bulletin-(GenericAnnos).dyn (4.9 KB) Rvt: Sample-Generic-Annotation-Design-Bulletin.rvt (472 KB) Partly based on: [image] How to get All Annotation Elements In Active View - section marks, elevation tags etc Revit Hey- reviving a few years later… Having an issue with the retrieval of the generic annotations from a given view - this one uses a lambda predicate… and the Lambda predicate from this post with @Nick_Boyts and @c.poupin [image] How can I collect all family types that are considered annotation symbols in Revit Revit The most efficient way is with Python. But you could also get all family symbols from Element Types and then filter out the elements with Annotation Symbol categories.

FYI, the reason why it wasn’t working to start with is that you can’t use the FEC to get Types in a View because the Symbol doesn’t exist IN a view, but the instance of that symbol does. So, this code is a small tweak to the original that gets instances, then gets and checks their Type. import clr import System import System.Collections.Generic from System.Collections.Generic import List clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * clr.AddReference("RevitServices") import RevitServices from RevitServices.Persistence import DocumentManager doc = DocumentManager.Instance.CurrentDBDocument def GetDraftingViewID(strName): ##https://forums.autodesk.com/t5/revit-api-forum/view3d-collector/td-p/5277451 DraftingViewsList = FilteredElementCollector(doc).OfClass(ViewDrafting).ToElements() ##DraftingViewTemplates = [v.Id for v in DraftingViewsList if v.IsTemplate == True] DraftingViewsList = [v for v in DraftingViewsList if v.IsTemplate == False and v.Name == strName] #DraftingViewsList = [v for v in DraftingViewsList if v.Name == strName] return DraftingViewsList[0] viewDraft = GetDraftingViewID("bar") ##https://forum.dynamobim.com/t/how-to-get-all-annotation-elements-in-active-view-section-marks-elevation-tags-etc/18716/4 filterAnnot = System.Predicate[System.Object](lambda x : doc.GetElement(x.GetTypeId()).Family.FamilyCategory.Name == "Generic Annotations") symbAnnot = List[Element](FilteredElementCollector(doc, viewDraft.Id).OfClass(FamilyInstance).ToElements()).FindAll(filterAnnot) OUT = symbAnnot

Try this using a category filter instead of the FindAll. import clr import System import System.Collections.Generic from System.Collections.Generic import List clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * clr.AddReference("RevitServices") import RevitServices from RevitServices.Persistence import DocumentManager doc = DocumentManager.Instance.CurrentDBDocument def GetDraftingViewID(strName): ##https://forums.autodesk.com/t5/revit-api-forum/view3d-collector/td-p/5277451 DraftingViewsList = FilteredElementCollector(doc).OfClass(ViewDrafting).ToElements() ##DraftingViewTemplates = [v.Id for v in DraftingViewsList if v.IsTemplate == True] DraftingViewsList = [v for v in DraftingViewsList if v.IsTemplate == False and v.Name == strName] #DraftingViewsList = [v for v in DraftingViewsList if v.Name == strName] return DraftingViewsList[0] viewDraft = GetDraftingViewID("bar") OUT = [x.Name for x in FilteredElementCollector(doc,viewDraft.Id).OfCategory(BuiltInCategory.OST_GenericAnnotation).WhereElementIsNotElementType()] [image]

Thanks @SeanP for explaining : ) Still trying to re-wrap my head around Python after being out of it for 5 years.

Yes, there are several different way to do something, and then you throw the transition from IP2 and CP3 in the mix and it gets even more convoluted. And as always, the Revit API doesn’t always make sense to me either! Good luck!

@SeanP Simple question: Why is the […] required? for the syntax in CPython3: OUT = [x.Name for x in FilteredElementCollector(doc,viewDraft.Id).OfCategory(BuiltInCategory.OST_GenericAnnotation).WhereElementIsNotElementType()] How is python treating the brackets? […] Creates a list is a list (or is it now a collection?) and is it forcing the evaluation to place it in the list? Where the […] enclose the : x.Name = VARIABLE_Modified_TO_RETURN *Iterate syntax = for x =VARIABLE_TO_ITERATE over the list of the FEC(Filtered element collector)

Brackets in this case is starting list comprehension. Syntax is as follows: [ actionOn(item) for item in largerList if filteronItem ] It’s basically a pythonic way to do a for loop without having to add all the extra lines. We covered this a bit in in the Snakes on a (Dynamo) Plane community conversation last fall.

Thanks Jacob! Wasn’t sure. Finally got my Visual Studio editing Python with the stubs installed! Details here: [image] Add .dll reference to get the Intellisense Developers @Marcel_Rijsmus Is this what you meant? I am Adding references to see if they bleed through into the python editor [image] … No change: [image] And here on my local blog: RevitTricks Revit, Architecture and IT system interrelated solutions.

Hello, there are several ways to filter a FilteredElementCollector some examples here [image] Python to get specific family? Hello for information, it is not because a code is shorter that it will be more efficient some examples to compare execution times with SlowFilter (Revit API) [image] with List Comprehension [image] with Predicate [image] with LINQ [image] with filter [image]

[image] c.poupin: FilteredElementCollector Erik Frits shared a nice document on Linkedin: [image] Erik Frits on LinkedIn: #revitapi #python #pyrevit #guide | 15 comments 👋 Hi everyone, 📘 I am currently writing my very first mini 𝐄-𝐁𝐨𝐨𝐤 about 𝐅𝐢𝐥𝐭𝐞𝐫𝐞𝐝𝐄𝐥𝐞𝐦𝐞𝐧𝐭𝐂𝐨𝐥𝐥𝐞𝐜𝐭𝐨𝐫 𝐢𝐧 𝐑𝐞𝐯𝐢𝐭𝐀𝐏𝐈 for… | 15 comments on LinkedIn

There are so many great resources out there. Thanks for sharing @jw.vanasselt and @c.poupin. Here is another by Jeremy! [image] Quick, Slow and LINQ Element Filtering I arrived back safe and sound in Switzerland after the exciting week at Autodesk University. Another happy arrival is my first grandson: He was preceded by his big sister almost two years ago. Life goes on. I have been wanting to highlight the...

@jw.vanasselt No content though? e-book publish date TBD?

Get all generic annotations in a view

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jw.vanasselt September 1, 2022, 12:43pm 10

Erik Frits shared a nice document on Linkedin:

Get All views - Id's,Names

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Get all generic annotations in a view

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