How can I set the Model Categories Transparency with python in Dynamo?

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1

How can I set the Model Categories Transparency with python in Dynamo? I see how to set the element overrides but not the categories overrides in some Dynamo packages

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I want just python code. this works with active view but I do not achieve it with a list of views

import clr

clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application

clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *

clr.AddReference('RevitAPI')
clr.AddReference('RevitServices')

from Autodesk.Revit.DB import *
from RevitServices.Persistence import DocumentManager
import System

doc = DocumentManager.Instance.CurrentDBDocument
TransactionManager.Instance.EnsureInTransaction(doc)
# Create a new OverrideGraphicSettings object
ogs = OverrideGraphicSettings()

# Set the transparency to 80%
ogs.SetSurfaceTransparency(80)

# Get the categories as per your condition
categories = [cat for cat in doc.Settings.Categories if cat.CategoryType == CategoryType.Model and 'Casework' in cat.Name]

# Get the active view
view = doc.ActiveView

# Iterate over categories and set the overrides
for category in categories:
    view.SetCategoryOverrides(category.Id, ogs)
TransactionManager.Instance.TransactionTaskDone()

OUT = IN[0]
2

Hi,

Archilab have some…and think from 2022 you can find one ootb, but not 100 sure you can find it in other versions…cant remember

1 Like
3

I want just python code.

4

You need to iterate over the views, you only use the active view. See how you loop over categories as example

5

it does not work, reason to write this post…do I need to iterate thorugh the overridesettings as well in the loop?

import clr

clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application

clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *

clr.AddReference('RevitAPI')
clr.AddReference('RevitServices')

from Autodesk.Revit.DB import *
from RevitServices.Persistence import DocumentManager
import System

doc = DocumentManager.Instance.CurrentDBDocument
TransactionManager.Instance.EnsureInTransaction(doc)

# Create a new OverrideGraphicSettings object
ogs = OverrideGraphicSettings()

# Set the transparency to 80%
ogs.SetSurfaceTransparency(80)

# Get the categories as per your condition
categories = [cat for cat in doc.Settings.Categories if cat.CategoryType == CategoryType.Model and cat.Name == "Casework"]

# Get the list of views from IN[0]
views = UnwrapElement(IN[0])  # Unwrap the views from ElementId

# Iterate over each view
for view in views:
    # Iterate over categories and set the overrides for the current view
    for category in categories:
        view.SetCategoryOverrides(category.Id, ogs)

TransactionManager.Instance.TransactionTaskDone()

OUT = IN[0]