API access to Room openings geometry and materials in Revit

[mostapha_roudsari]

Currently, there is no easy way to access the geometry of a room with its openings. It would be very helpful to have one.

[Anonymous]

This. So much this.

[Anonymous]

Strongly, Support your idea Mostapha. I am with you, and very thanks for your effort in Ladybug and Honeybee for DynamBIM. (Y)

[Renzoj14]

Anything to get you going with these great packages mostapha 👍🏼Great work

[Anonymous]

I also strongly support this.

[Anonymous]

It would be great to have this. Total support.

[Anonymous]

Please, Mostapha!

[Anonymous]

The usefulness of this addition extends to other engineering disciplines like acoustics. Please add!

[Anonymous]

Having this would certinally streamline how we exchange information in our workflow.

[Anonymous]

This is a must for Honeybee and Ladybug for Dynamo to be at par with the grasshopper versions of the same plugin. Strongly support this.

[harlan_brumm]

Thanks for your submission and votes on this idea!  We are evaluating where this request falls into our roadmap and will provide an update when we have made a decision. 

The Factory

[Anonymous]

Very happy to see this!  I promise to make good use of this when it becomes available.

[Anonymous]

Definitely need this! Please Autodesk!

[Anonymous]

I must say I do not like autodesk tools but I need them. So please Autodesk. Mostapha is doing a great job on the other side of the spectrum (rhino and grasshopper)

[GallowayUS_com_RonAllen1]

You can do this with Dynamo and the ROOM object in the API through a python script.:

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

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc =  DocumentManager.Instance.CurrentDBDocument

items = UnwrapElement(IN[0])
listElements = list()

for objRoom in items:
	sublist = ""
	try:
		objDoc = objRoom.Document
		calculator = SpatialElementGeometryCalculator(objDoc)
		objResults = calculator.CalculateSpatialElementGeometry(objRoom)
		
		objRoomSolid = objResults.GetGeometry()
		
		
		#sublist.append(objRoom.get_Parameter('Number').AsString())
		#sublist.append(objRoom.get_Parameter('Name').AsString())
		
		for objFace in objRoomSolid.Faces:
			faceArea = objFace.Area
			subfaceList = objResults.GetBoundaryFaceInfo(objFace)
			try:
				origin = objFace.Origin
				Ht=0
				Ht=origin[2]-objRoom.Level.Elevation
				normal = objFace.Normal
				#vector = objFace.Vector[0]
				if normal[2] < 0 and Ht > 0 :	#assuming normal[z] is negative for room bound ceiling)
				#if  Ht > 0 :
					for objsubface in objResults.GetBoundaryFaceInfo(objRoomSolidFace):
						try:
							objBoundingElementface = objsubface.GetBoundingElementFace()
							objEid = objBoundingElementface.MaterialElementId
							if sublist.Length > 0  : sublist = sublist + "; "
							sublist=sublist+'Mat.Name='+ doc.GetElement(objEid).Name + ', Mat.Area={:,.3f}'.format( faceArea)
							#Sublist.append('Material Name = '+ doc.GetElement(objEid).Name +', Material Id = '+ objEid.IntegerValue.ToString()+', Material Area = '+ faceArea.ToString()+ ', Ht=' + str((origin[2]-objRoom.Level.Elevation)) +'\n')
						except:
							continue
					if sublist.Length > 0  : sublist = sublist + "; "									
					sublist=sublist+'ClgHt={:,.3f}'.format(Ht) #Height of element's origin above the floor
					
			except:
				continue
	except:
		if sublist.Length > 0  : sublist = sublist + "; "	
		sublist=sublist+"err#"
		
	listElements.append(sublist)
OUT =(listElements)

[mostapha_roudsari]

Ron, Thank you for your post. I can't see how you get the geometry of the window or the wall with windows removed in this code. Also this may clarify what are we trying to get out of Revit: https://github.com/ladybug-tools/honeybee-plus/blob/master/honeybee_dynamo/revit.py#L191-L324

[GallowayUS_com_RonAllen1]

If I remember the class correctly in the API it bounces the materials back. You may need to look at materials rather than "Windows" to discern areas.

[GallowayUS_com_RonAllen1]

If I remember the class correctly in the API it bounces the materials back. You may need to look at materials rather than "Windows" to discern areas.

[Anonymous]

Can we apply the same rule to Spaces:

API access to Space openings geometry and materials in Revit

[Anonymous]

What are the limitations in the current setup?

Im about to make daylight factor analysis in a large project, and it would be nice to know beforehand which type of gemetries/models might cause problems. I need to know If I should put hours into working in experimental Dynamo or put those hours in exporting to my safezone grasshopper. I wont have time for both...!

[Anonymous]

Definitely agree, more grasp of room geometry (incl. ceiling and openings) would vastly help anyone attempting simulation/analysis.