I am needing help with retrieving duct connector associated parameters.
The script below was my attempt in trying to at least find the possible parameters that could be used for the built-in Height, Width, Radius/Diameter parameters for the connectors.
I took a look using the RevitLookup tool and was able to drill down to
MEPModel>ConnectorManager>ConnectorSet but the most i got out of it was Shape, Radius, not the associated created parameter.
Not sure if anyone has done anything with duct/pipe connectors before. Hoping someone has dealt with connectors and can provide some insight.
The family i used was the out of the box Autodesk round damper family for testing.
# -*- coding: utf-8 -*-
__title__ = "Test Duct Connector"
import clr
clr.AddReference("RevitAPI")
clr.AddReference("RevitAPIUI")
from Autodesk.Revit.DB import *
from Autodesk.Revit.UI.Selection import ObjectType, ISelectionFilter
from pyrevit import revit, script, forms
doc = revit.doc
uidoc = revit.uidoc
output = script.get_output()
# ------------------------------------------------------------
# Selection Filter
# ------------------------------------------------------------
class DuctAccessoryFilter(ISelectionFilter):
def AllowElement(self, elem):
try:
if elem.Category.Id.IntegerValue == int(BuiltInCategory.OST_DuctAccessory):
return True
except:
pass
return False
def AllowReference(self, reference, position):
return False
# ------------------------------------------------------------
# Pick Accessory
# ------------------------------------------------------------
try:
ref = uidoc.Selection.PickObject(
ObjectType.Element,
DuctAccessoryFilter(),
"Select a duct accessory"
)
except:
forms.alert("Selection cancelled.", exitscript=True)
accessory = doc.GetElement(ref.ElementId)
output.print_md("## Accessory Selected")
output.print_md(accessory.Name)
# ------------------------------------------------------------
# Helper Filter
# ------------------------------------------------------------
def is_candidate_parameter(p):
try:
if p.StorageType != StorageType.Double:
return False
if p.IsReadOnly:
return False
if not p.CanBeAssociatedWithGlobalParameters():
return False
return True
except:
return False
# ------------------------------------------------------------
# Collect Parameters
# ------------------------------------------------------------
candidates = []
for p in accessory.Parameters:
if not is_candidate_parameter(p):
continue
try:
name = p.Definition.Name
val = p.AsDouble()
val_in = val * 12.0
label = name + " (" + str(round(val_in,3)) + " in)"
candidates.append((label, p))
output.print_md(label)
except:
pass
typ = doc.GetElement(accessory.GetTypeId())
for p in typ.Parameters:
if not is_candidate_parameter(p):
continue
try:
name = p.Definition.Name
val = p.AsDouble()
val_in = val * 12.0
label = name + " (" + str(round(val_in,3)) + " in) [TYPE]"
candidates.append((label, p))
output.print_md(label)
except:
pass
if not candidates:
forms.alert("No candidate parameters found.", exitscript=True)
# ------------------------------------------------------------
# Choose Parameter
# ------------------------------------------------------------
labels = [c[0] for c in candidates]
chosen_label = forms.SelectFromList.show(
labels,
title="Select Parameter To Modify",
multiselect=False
)
if not chosen_label:
forms.alert("No parameter selected.", exitscript=True)
chosen_param = None
for label, param in candidates:
if label == chosen_label:
chosen_param = param
break
# ------------------------------------------------------------
# Ask for New Size (Inches)
# ------------------------------------------------------------
new_size = forms.ask_for_string(
prompt="Enter new size (inches)",
title="Modify Parameter"
)
if not new_size:
forms.alert("No value entered.", exitscript=True)
try:
new_size_in = float(new_size)
except:
forms.alert("Invalid number.", exitscript=True)
new_size_ft = new_size_in / 12.0
# ------------------------------------------------------------
# Apply Change
# ------------------------------------------------------------
t = Transaction(doc, "Modify Size Parameter")
t.Start()
try:
chosen_param.Set(new_size_ft)
doc.Regenerate()
output.print_md("Parameter Updated")
except:
output.print_md("Failed to set parameter")
t.Commit()
