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I'm trying to update/override the mass properties of a model from an application using the asynchronous J-Link API. I created a method which takes in a solid and a Hash of the mass property/value pairs. Everything succeeds with no errors/exceptions, however, the values do not change in Creo. I understand most of these properties are calculated and it's probably not a good idea to set them anyway, however, I do want to be able to set the density. Thoughts?
public void updateCADProperties(Solid solid, HashMap<String, Double> values){
MassProperty properties = null;
try {
properties = solid.GetMassProperty(null);
properties.SetMass(values.get("mass"));
properties.SetDensity(values.get("density"));
properties.SetSurfaceArea(values.get("surfaceArea"));
properties.SetVolume(values.get("volume"));
} catch (jxthrowable e) {
e.printStackTrace();
}
}
Thanks In Advance,
Bill
Hi
Set methods on MassProperty object doesn't work for me too.
Perhaps the inner Creo calculation as you mentioned.
You should try to access MASS (PRO_MP_MASS) and others via pfcModelItem > Parameter interface.
But I think ti won't work too.
But there is a Alternate Mass Properties table in Creo too.
It's purpose is to replace basic Mass Properties with manualy entered value (if am I right).
It looks that no inner calculation is used on this object.
But unlike MassProperty there is no AlternateMassProperty documented in API.
I'm experimenting with ALT_AREA parameter right now.
And it seems I will be able to write the calculated value into AlternateMassProperty table via Parameter interface.
Mass properties are read-only parameters. The only one that can be set, as Bill already mentioned, is the density. Density is a characteristic of the material. Take a look to the SetMassDensity method under the Material interface and/or MTL_PROP_MASS_DENSITY under the MaterialPropertyType Class.
I'm sorry I can't give you more details, I'm more familiar with Toolkit API's then Jlink.