Multiple override graphic settings in one transaction

Revit API
1

Hi,

Im fairly knew to python and the revit api.

I’m attempting to set an object transparent and halftone. The code below only sets the element to halftone. But if i comment out the halftone, it will set the element to transparent… Im not sure why it wont set both.

import clr

clr.AddReference('RevitAPI') 
clr.AddReference('RevitAPIUI') 
from Autodesk.Revit.DB import * 
from Autodesk.Revit.UI import *

app = __revit__.Application
doc = __revit__.ActiveUIDocument.Document
selection = [doc.GetElement(x) for x in uidoc.Selection.GetElementIds()]

t = Transaction(doc, 'transparenthalftone')
t.Start()

for i in selection:
    doc.ActiveView.SetElementOverrides((i.Id), 
    OverrideGraphicSettings().SetSurfaceTransparency(100)
	OverrideGraphicSettings().SetHalftone(True))
t.Commit()

__window__.Close()
2

Hi,
you need to create a instance of graphics overrides and then just use another overload of SetElementOverrides which takes elementId and OverrideGraphicSettings as inputs.

sth like

ogs = OverrideGraphicSettings()
ogs.SetProjectionFillColor(R,G,B)
ogs.SetProjectionLineColor(R,G,B)
ogs.SetProjectionFillPatternId(pattern.Id)
ogs.SetSurfaceTransparency(100)
ogs.SetHalftone(True)

t = Transaction(doc, 'transparenthalftone')
t.Start()
for i in selection:
    doc.ActiveView.SetElementOverrides(i.Id, ogs)
t.Commit()

In your code → only the last override would be applied

3 Likes
3

Thanks Tomasz! that worked.