Python "Expected Array[float], got list" issue

[denisyukj]

Hi, can someone explain me how to handle this issue?

# Find trimed lines
tr_lns = Curve.TrimSegmentsByParameter(lns[0], int_prms)
# Assign your output to the OUT variable.

OUT = tr_lns

My input parameters look like this:

lns[0]:

int_prms:

Is something wrong with list? It it not array?

[leonard.moelders]

I think you need to create an array of floats from your list. Similar to this:

How to use Data.ExportExcel method in a python scipt

Oh yes. My bad. I will change that in my post import clr import sys sys.path.append('C:\Program Files (x86)\IronPython 2.7\Lib') import System from System import Array from System.Collections.Generic import List as IList 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 RevitS…

Look at the last third of this code. There will you see that an array of objects is created from a list. You need to create an array of floats.

[c.poupin]

Hello @denisyukj
a solution converting the input List

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

lns = IN[0]
int_prms = System.Array[System.Double](IN[1])

tr_lns = Curve.TrimSegmentsByParameter(lns, int_prms, False)

OUT = tr_lns