Get Section Shape of Column/Element

Revit
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1

Hi all, Hope you’re doing well !

I was wondering to get section shape of column elements in dynamo and if I use getparameter node I am getting the integer value of values. I want to extract the data of section shape of columns. I want to convert “31” to “Rectangle”. I even checked with element.parameter node there I am getting section shape as “Rectangle” but if I check the values of the parameter then I get “31” for all.

So is there any way to get that through python?
Here is the sample:

image
image1920×1200 156 KB

2

@shashank.baganeACM ,

what do you mean? as a string in a parameter ?

grafik
grafik933×195 4.9 KB

KR

Andreas

3

You’re looking for ParameterValueAsString. It’s an option in the API but a few custom node packages also have nodes that already do it.

4

@Draxl_Andreas I mean to say if I try to get the parameter value then I am getting Section shape parameter value as “31” not as Rectangle. I want it to get as rectangle.

@Nick_Boyts I have tried it but not getting this. The code follows as below

import clr

import sys
sys.path.append(r'C:\Program Files (x86)\IronPython 2.7\Lib')

import System
from System.Collections.Generic import *

clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
clr.ImportExtensions(Revit.GeometryConversion)
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager 
from RevitServices.Transactions import TransactionManager 

clr.AddReference("RevitAPI")
clr.AddReference("RevitAPIUI")

import Autodesk 
from Autodesk.Revit.DB import *
from Autodesk.Revit.UI import *

doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication 
app = uiapp.Application 
uidoc = uiapp.ActiveUIDocument

def tolist(obj1):
	if hasattr(obj1,"__iter__"): return obj1
	else: return [obj1]

#Preparing input from dynamo to revit
elem = UnwrapElement(IN[0])

elem_param = elem.LookupParameter("Section Shape")

paramvalue = elem_param.AsString()

OUT = elem_param.AsString()

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image1595×962 138 KB

5

Mepover has a node that gets parameter value as string, what do you get when you try that?

2 Likes
6

@pyXam I got the results:

The following is the final workflow:

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
#The inputs to this node will be stored as a list in the IN variables.
if isinstance(IN[0], list):
	element = UnwrapElement(IN[0])
else:
	element = [UnwrapElement(IN[0])]
name = IN[1]
prefix = IN[2]
listout = []

if prefix == False:
	formatOptions = FormatOptions()
	formatOptions.UseDefault = False
	formatOptions.UnitSymbol = UnitSymbolType.UST_NONE


def checkParameter(param):
	for p in param:
		internal = p.Definition
		if internal.BuiltInParameter != BuiltInParameter.INVALID:
			return p
	return param[0]

for e in element:
	param = e.GetParameters(name)
	if len(param) == 0:
		listout.append(None)
	else:
		p = checkParameter(param)
		if p.StorageType == StorageType.String:
			listout.append(p.AsString())
		elif p.StorageType == StorageType.ElementId:
			listout.append(p.AsValueString())
		elif p.StorageType == StorageType.Integer:
			listout.append(p.AsValueString())
		else:
			if prefix == False:
				formatOptions.DisplayUnits = p.DisplayUnitType
				listout.append(p.AsValueString(formatOptions))
			else:
				listout.append(p.AsValueString())
			
	

#Assign your output to the OUT variable.
OUT = listout
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