What query will give me the solid body that owns a face?

dave_cowden

I have a face, and I thought this would give me the body that owns it:

var theBody = qOwnerBody(definition.face );

But that just gives me the face again.  I also tried 

var theBody = qOwnerBody(qOwnerBody(definition.face));

but that gives the same thing too.  The body is a user-created body so i do not have programmatic access to the id to use qCreatedBy.

This code works, but its really insane just to find the owning body:

<div>&nbsp; &nbsp; var tangentPlane = evSurfaceDefinition(context, {</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; "face" : definition.face</div><div>&nbsp; &nbsp; });</div><div>&nbsp; &nbsp;&nbsp;</div><div>&nbsp; &nbsp; var originalObject =qContainsPoint(qBodyType(qEverything(EntityType.BODY),BodyType.SOLID),tangentPlane.origin );</div>

Shouldn't you be able to find the solid body that owns a face using qOwnerBody?  I think this code will generally work but its pretty nasty and there are some corners in which we could find multiple bodies if we happened to have a face on a boundary between two solids.

dave_cowden

oh sorry, in that last code i pasted an older version, sorry.

the last part should be 

<div>&nbsp; &nbsp; var tangentPlane = evFaceTangentPlane(context, {</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; "face" : definition.surface,</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; "parameter" : vector(0.5, 0.5)</div><div>&nbsp; &nbsp; });

of course the above returns a surface, not a tangent plane.</div>

ilya_baran

qOwnerBody should work -- assuming the face is on that body and not, say, part of a different body (perhaps a surface body).  I'm surprised it gives you a face.  Does the output of debug(context, qOwnerBody(definition.face)) confirm that it resolves to one face?

dave_cowden

Yes, it does. I also sebugged it graphically to see what it selected too.

This is a pretty large project, so like that other extrude weirdness I'll try to narrow it down to an easier repro before having you look into it