topic Re: Conversion from Revit Units in Revit API Forum

Conversion from Revit Units

dem1st — Tue, 12 Oct 2021 13:56:46 GMT

Is Area double on Integer? How to get the right number (when exporting to Excel) ? For now it is either random number or 0.

//in this case the output is not square meters but some other number List<double> _pArea = new List<double>(); foreach (Element e in _elementsDB) { _pArea.Add(UnitUtils.ConvertToInternalUnits(e.LookupParameter("Area").AsDouble(), DisplayUnitType.DUT_SQUARE_METERS)); } //in this case the output is 0 List<int> _pAreaInt = new List<int>(); foreach (Element e in _elementsDB) { _pAreaInt.Add(e.LookupParameter("Area").AsInteger()); }

Re: Conversion from Revit Units

Omar_Amen — Tue, 12 Oct 2021 14:24:30 GMT

Hi @dem1st ,
the unit that the Revit API uses is Feet so the value of your area should be in square feets!
you can convert it easly to m2,mm2,...etc
manually or by
public static class UnitUtils
retrieve the value using
public string AsValueString( FormatOptions formatOptions )
then check it first in debugging
if it not equals "0"
then you can parse it to int or double...etc

Re: Conversion from Revit Units

Omar_Amen — Tue, 12 Oct 2021 14:38:39 GMT

@dem1st may you also try
ConvertFromInternalUnits(
instead of
ConvertToInternalUnits(