What I tried: I am trying to reteive all the walls that appear in a list of floorplans views, but I also want to get the walls from linked documents.
What I expeted: A list of list of walls in this format Docs>View>WallElement
What I got: An Emty lists and no errors! in the right format.
Comment: I am not all too familiar with the filter element collectors and mostly “Frankensteining” things toghether. Something must be happening during the collector because I get as many sublists as I have views. I guess nothing passes the filter and I don’t know why.
I don’t believe you can get elements from a linked model by using a view in the current document. The views need to come from the document used in the collector.
You might be able to modify the Data-Shapes node GetLinkedElement.InHostViewAndCategory to work with your process though. I believe the node filters out elements within the bounding region of the view. Just use that node alongside the filtered elements from your current document.
Check the linked model if you have many models linked by
foreach(Element e in elems)
// cast element to RevitLinkType
RevitLinkType linkType = e as RevitLinkType;
//loop over linked documents
foreach (Document linkedDoc in uiApp.Application.Documents)
{
//Check the linked model by name.
if (linkedDoc.Title.Equals(linkType.Name))
{
@Nick_Boyts You are right, the filtered element collector need to use a a view that is within it’s document.
@Mostafa_El_Ayoubi I also found the thread where GetLinkedElement.InHostViewAndCategory was born from:How to collect elements from links visible on a view in the host model? And modified it like so to get it to use lists documents. And changed the VERY SUBTLE “Elev” parameter call to “Elév.” because french. I just combine it with a Select.ByCategoryAndView to get the current document, then AddItemToFront with funny lacing.
As a side note, ElementOwnerViewFilter only considers 2d elements, wish explains my empty lists.
#Copyright (c) mostafa el ayoubi , 2017
#Data-Shapes www.data-shapes.net , elayoubi.mostafa@gmail.com
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import*
clr.AddReference('RevitServices')
from RevitServices.Persistence import DocumentManager
doc = DocumentManager.Instance.CurrentDBDocument
import System
from System.Collections.Generic import *
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import*
doc = DocumentManager.Instance.CurrentDBDocument
#Inputs
if isinstance(IN[2],list):
categories = IN[2]
else:
categories = [UnwrapElement(IN[2])]
linkdocs = IN[1]
if isinstance(IN[0],list):
views = UnwrapElement(IN[0])
else:
views = [UnwrapElement(IN[0])]
collector = []
#getting project base point elevation
basepointfilter = ElementCategoryFilter(BuiltInCategory.OST_ProjectBasePoint)
basepoint = FilteredElementCollector(doc).WherePasses(basepointfilter).ToElements()
bpelevation = [b.ParametersMap.get_Item('Elév.').AsDouble() for b in basepoint]
#Category filter
catfilter = []
for i in categories:
catfilter.append(ElementCategoryFilter(System.Enum.ToObject(BuiltInCategory, int(str(i.Id)))))
catfilterlist = List[ElementFilter](catfilter)
filter = LogicalOrFilter(catfilterlist)
UIunit = Document.GetUnits(doc).GetFormatOptions(UnitType.UT_Length).DisplayUnits
level = []
for v in views:
#creating a boundingbox for each view from it's crop box and view range
bb = v.CropBox
vr = v.GetViewRange()
topclip = PlanViewPlane.TopClipPlane
bottomclip = PlanViewPlane.BottomClipPlane
cutclip = PlanViewPlane.CutPlane
toplevel = (doc.GetElement(vr.GetLevelId(topclip)))
topoffset = vr.GetOffset(topclip)
cutlevel = (doc.GetElement(vr.GetLevelId(cutclip)))
cutoffset = vr.GetOffset(cutclip)
try:
topZ = toplevel.Elevation + topoffset - bpelevation[0]
except:
topZ = cutlevel.Elevation + cutoffset - bpelevation[0]
bottomlevel = (doc.GetElement(vr.GetLevelId(bottomclip)))
bottomoffset = vr.GetOffset(bottomclip)
try:
bottomZ = bottomlevel.Elevation + bottomoffset - bpelevation[0]
except :
bottomZ = cutlevel.Elevation - bpelevation[0]
min = bb.Min
max = bb.Max
newmin = XYZ(min.X,min.Y,bottomZ)
newmax = XYZ(max.X,max.Y,topZ)
ol = Outline(newmin,newmax)
#combining boundingbox and category filters
bbfilter = BoundingBoxIntersectsFilter(ol)
andfilter = LogicalAndFilter(filter,bbfilter)
#collecting elements
collectordoc = []
for linkdoc in linkdocs:
collectordoc.append(FilteredElementCollector(linkdoc).WherePasses(andfilter).ToElements())
collector.append(collectordoc)
OUT = collector
I am trying to do something very similar, but with Rooms and only the current document. However, I too am getting an empty list when feeding it multiple views. I have tried to change the lacing, but that doesn’t help.
