How to fix the U/V for a sample surface ?

[PSI-CAD]

Hi,

In this sample example, the isoparam are as expected

If I change the value 5 to 0 the isoparam are switching, because the result is a planar surface and the U direction seems to be fix in this case

So, how to change the U direction for this kind of planar surface ?

The example part is in NX9

Thanks in advance


Regards
Didier Psaltopoulos

http://www.psi-cad.com

 

[cowski]

I'm not sure the location in NX9, but in 8.5 it would be: Edit -> Surface -> U/V Direction...

www.nxjournaling.com

 

[Toost]

Didier,
Is there a reason for the wish ?
I.e , in my view either I want a B-surface which can be deformed, or i want a planar surface because of it's benefits, but i do not want a surface that "suddenly" changes it's type.

There is the Preferences - Modeling - Freeform - Freeform construction result = Plane/ B-surface which can be set such that what normally would become planar instead becomes B-surface.
- and probably more predictable in the matter of U-V.

In my memory, the U-V of the analytical shapes are dictated by the Absolute C-sys and not by the defining curves.


Regards,
Tomas

 

[JohnRBaker]

Out-of-the- box, the Edit 'U/V Direction' function can be found on the 'Surface' Tab in the 'Edit' section of the Ribbon.

For those of you who have not yet had a chance to use NX 9.0 yet, please keep in mind that while we expect people to migrate to the use of the Ribbons far accessing all NX functions, we have given special consideration to those of you who will be moving there after many years of experience using older versions of NX. In addition to the obvious, such as using the Command Finder, which we've made easier to 'find' by making it a permanent part of the user interface so that it's always available without having to open a dialog or take any special action before entering a query, we have also provided another 'permanent' function that is a place where you can still use the old cascading menu scheme for getting to where the legacy functions have always been. Note that we've not made this real prominent since we don't want totally new users going there as an alternative to using the now standard Ribbon scheme, but yet it's still there for us 'old farts', at least until you've completely acclimated yourselves to the Ribbon User Interface.

What we've done is include a 'Menu' item on the so-called 'Selection Bar', which is now more of a 'Utilities Bar' where many things have been placed, including the Selection tools, the Snap-Point options, Hide/Show functions, Work Layer widget, Movie controls, etc.

So if you've got the old menu-paths memorizes or just like to use the 'waterfall' menus to find stuff, here's how it works in NX 9.0:

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.

 

[PSI-CAD]

Hi Cowski,

Edit U/V Direction is available only with a MACH3 licence and it's not a parametric solution


Hi Tomas,

Thanks a lot

I have forgotten "Preferences - Modeling - Freeform - Freeform construction result = Plane/ B-surface" and it's a good solution

Now I can explain what I am looking for:

I am using Global Shaping by surface and now I can drive the U direction of by planar base surface by selecting the input curves in the right way

Hi John,

About the NX9 UI and command finder:

If I search "Isoparametric Curve" by example, NX open only the function in the 'Menu' item on the so-called 'Selection Bar' and explain (Red rectangle) how to find in the Curve Tab (because it's currently hidden).

==> I have just found that it's possible to show it on the Ribbon with right mouse button. So it's very helpfull

it seemed useful to explain to everyone except you of course John

Regards
Didier Psaltopoulos

http://www.psi-cad.com

 

[JohnRBaker]

Yes, items which are found using the Command Finder, yet are shown as hidden but still easily reinstated, are there primarily because while they may still be useful for some people, particularly long time users who may have workflows which depend on what in reality are somewhat 'obsolete' functions (meaning that if you were starting from scratch as a new user of NX, that you would have probably used something more 'modern'), we wanted them 'off the boards' as it were. Now if they start to be excluded from the Command Finder altogether, that may mean something very different, an example of which I'm going to have to expand on in another thread, which encountered this same issue, later today.

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.

 

[Toost]

Didier; - what i did last time i needed this special planar b-surface was to use the Extract Geometry - Face - Surface type = general B surface.
IF you have the X-form License, you could select the planar surface and hit OK, it will then convert to a B-surface but keep the shape.

Btw, last time i was working with the Global Shaping by surface, ( probably NX2 time ) I came to the conclusion that it was beneficial to have the same degree- number of patches and a somewhat matching pole structure of the base and the control surface, is that correct ?


John, so what you really are saying in the above is, that we no longer should tell/ advice people where to find features, but rather tell them to type the feature name into the command finder. ?
well, this is the negative side of the ribbon bar. It is more or less impossible to write how to find a feature, other than the name of the specific feature.
The logical hierarchy is no longer there, apart from our loved extra pulldown menu in NX.
( Used by us, stubborn old users, when we know that there is a seldom used feature under the Edit dialog somewhere and I can't remember the exact name of the feature. The Options / Features in this thread are good examples of such seldom used functions.)


Regards,
Tomas

 

[JohnRBaker]

Well, it's impossible to have ALL the function icons on the Ribbons, or for that matter, on the older Toolbars, therefore, this approach of using the Command Finder to (excuse the pun) 'find' a function is not such a bad idea. At least with the Ribbon, we've pretty much included the icons for ALL the fully supported functions SOMEWHERE on a ribbon, if not in one of the main Ribbon groups, then either in a 'Gallery' or on one of the drop-down 'More' panels. With the older Toolbar UI the additional supported functions were relegated to a set of secondary drop-downs where you HAD to take an explicit action just to enable the icon so that it could even be selected and then if you were ONLY going to need it ONCE, you either had to disable the icon yourself or ignore it, which would eventually result in these extra, but seldom used icons, cluttering-up your toolbars.

NO, I like the new approach better and if you think that you're going to the 'More' panels too often, you can always use Customize to move the frequently used icons up into either an easier to access 'Gallery', onto the main Ribbon itself or for that matter, perhaps a totally NEW Ribbon where you might wish to collect all of your frequently used functions. And I've not even mentioned that you also have those currently 'hidden' SIDE and BOTTOM 'Bars' where you can drop any icon, no matter where it might currently be located. And you can even place icons on one of those extra 'Bars' or ANY of the Ribbons themselves, from the Command Finder with only a single click of the mouse.

And as for this idea that some of the less supported or preferred fucntions are now 'hidden' meaning that they have to be made active from the Command Finder, this is NOT an idea that was born with NX 9.0. We've been doing that for years, ever since the Command Finder was added to NX.

And getting back to this idea that perhaps using the Command Finder as a 'normal' way of finding something, with that in mind, we have made the Command Finder a PERMANENT part of the new User Interface, so now it's very easy to (again, excuse the pun) 'find' the Command Finder ;-)

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.