Gets a linear unit representing millimeters (Factory code = 109007).
LinearUnit - Convert between centimeters and millimeters
// convert 11 centimeters to millimeters
double mm = LinearUnit.Centimeters.ConvertTo(11, LinearUnit.Millimeters);
// convert the result back to centimeters
double cm = LinearUnit.Millimeters.ConvertTo(mm, LinearUnit.Centimeters);
// convert the millimeter result back to meters
double meters = LinearUnit.Millimeters.ConvertToMeters(mm);
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3 or higher.