What change does the sewing operation do to a B surface?
What change does the sewing operation do to a B surface?
(OP)
What change does the sewing operation do to a B surface?
I am using UF_MODL_create_sew to sew two surfaces. But when I query the target surface for knots and control points using UF_MODL_ask_bsurf before and after the sewing operation I see no difference. So I am not sure if I have the right results.
Does sewing alters the geometry of the surface itself Or creates a new surface with the altered geometry apart from the initial surface ? Or it is the only the representation that is changed ?
Is sewing saved in the part as a separate feature or something ?
I am trying to understand the format in which a part is saved in NX file and how are all the features saved? Please point me in the right direction.
Thanks in advance for the help.
Regards
Wilson





RE: What change does the sewing operation do to a B surface?
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: What change does the sewing operation do to a B surface?
Thanks John,
How then is it possible to get a surface which has a C0 or C1 continuity with the adjoining surfaces ??
RE: What change does the sewing operation do to a B surface?
RE: What change does the sewing operation do to a B surface?
I am trying to create a set of 'through curves' surfaces using UF_MODL_create_sew. I have two parallel surfaces and a third adjoining surface which should have a C0 or C1 continuity with the parallel surfaces.
I am creating all the three faces using a thru_curves method which accepts set of curves as input and returns a face tag of the surface created. Initially I create the opposite parallel surfaces (SURF 1 and SURF 2). Then I am creating the curved surface (SURF 3). For the 3 rd surface I pass the first two surfaces as object identifiers of neighboring surface for continuity. but I do not get a C0 continuity.
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I try the sew operation
CODE
But as I said I get the same control points and and knot values before and after sewing. What needs to be done to get a surface with an actual C0 continuity rather than just a representation of it?
Regards,
Wilson
RE: What change does the sewing operation do to a B surface?
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: What change does the sewing operation do to a B surface?
Tim Flater
NX Designer
NX 8.0.3.4
Win7 Pro x64 SP1
Intel Xeon 2.53 GHz 6GB RAM
NVIDIA Quadro 4000 2GB