How to retreive unit symbols (ex. length) from document using revit api?

[waleed.hany]

Is there a way to get the units (units of length as an example) from document as symbol (ex. mm or ft) using revit api?
Thanks 

[Anonymous]

Hi, as far as I know the units are internally represented as ft (in general, unit used are imperial units). So, when you retrieve them they will be in that unit.

You can convert to other units using

//Get distance between two points
double dist = p1.DistanceTo(p2); //in ft
double distInMeters = UnitUtils.ConvertFromInternalUnits(measure, UnitTypeId.Meters))); //in m

You can change Meters for other types of measurements.

I wish this helps,

Jose Antonio Lorencio Abril

[waleed.hany]

Hello Jose
Thanks for the insight
At the moment What I want to achive is retriving the unit used in the document as symbol

For example in that case it would return "mm"
is there a direct way to achiving that ?
Thanks

[Anonymous]

Sorry, I'm not aware of any way for achieving that. Good luck!

[mhannonQ65N2]

If you really want to know what (if any) text is displayed at the end of a displayed value (e.g. 21.34 mm, 11 m/s), you can call UnitFormatUtils.Format and look at the end of the string it returns.

[rschmittUHALU]

@waleed.hany you can get the FormatOptions for each SpecTypeId (unit types like distance or volume) with this code

Units units = doc.GetUnits();
FormatOptions options = units.GetFormatOptions(SpecTypeId.Distance);
options.Accuracy;
options.RoundingMethod;
options.SupresssTrailingZeros; 
...

but i dont see a way to get the unit annotation like "mm" or "in"