Problem with Pressure parameter

[Anonymous]

I have a following problem. I have a user defined Parameter called pressure of value: 123456789 Pa (units set to Pa).

When for example I use MessageBox to display it's value or when I want to use the value for some calculations it returns: 123456,789 - why is that ?

[johnsonshiue]

Hi! This behavior has something to do with compound unit type like Watt or Pa. The display value via Inventor API is done in database unit (not document unit). So everything is converted based on mass = Kg, length = cm, time = sec, temperature = kelvin, and angle = radian.

Pa = Kg/(m*sec^2) = 1/100 * Kg/(cm*sec^2)

So the display value via API would look 100 times smaller than the parameter value.

Many thanks!