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Michael Thompson
Junior Member
Username: Michaelc

Post Number: 28
Registered: 09-2010
Posted on Tuesday, September 25, 2012 - 01:30 pm:   Edit Post Print Post

Is there a simple way to align a set of nurbs control points along an axis (or even a custom reference plane axis)?

I've tried the Alin/Dist tool which seemed to offer the appropriate checkboxes for axis alignment but it didn't seem to do anything to the nurbs object. A numeric field would do the trick for xyz.

As a work around I've drawn a line and snapped the cp's one-by-one to that. Perhaps this is the obvious answer!

I'm just wondering if there's a better approach since I'm currently learning/improving my nurbs workflow.

Mike
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support@formZ.com
Moderator
Username: Tech

Post Number: 17724
Registered: 04-2001


Posted on Tuesday, September 25, 2012 - 01:50 pm:   Edit Post Print Post

Michael,

You can use the N-Edit tool from the Modify Nurbs Surface tool row. You can select a point, set it's elevation value numerically, then use the arrow keys to move to the next point.
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franza
Senior Member
Username: Tetrochuan

Post Number: 284
Registered: 09-2009
Posted on Tuesday, September 25, 2012 - 02:50 pm:   Edit Post Print Post

well... will the ability to align them with proper tools com in the future then or would this requiere alot of awful coding?!
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support@formZ.com
Moderator
Username: Tech

Post Number: 17728
Registered: 04-2001


Posted on Tuesday, September 25, 2012 - 03:19 pm:   Edit Post Print Post

Franza,

It would be a lot of work to use the Align tools, but you could use the "scale by "almost zero" trick..."
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Gustavo M.
Member
Username: Mlgustavo

Post Number: 61
Registered: 12-2007


Posted on Tuesday, September 25, 2012 - 03:20 pm:   Edit Post Print Post

that would be very useful
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Michael Thompson
Junior Member
Username: Michaelc

Post Number: 29
Registered: 09-2010
Posted on Tuesday, September 25, 2012 - 06:04 pm:   Edit Post Print Post

Great that was what I was after Ztech and it was staring me in the face after all!

One thing I've noticed the tform gumball doesn't work on nurbs cp's. I'm not sure it's practical to use such a device on nurbs so I'm just bringing it to attention.

One thing occurred to me when using the nurbs tools is that it would be nice to be able to slice between a pair of cp-lines and then use some sort of slide tool to position the new set of cp's along the curvature of the surface. I'm not sure if this would be practical or possible given the curvature of a complex surface, although nurbs reconstruct must be doing something similar. I'm viewing my nurbs workflow as an extension of my modo subdivision surfaces experience and perhaps it's just not applicable.

Mike
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Jaspi
Senior Member
Username: Jaspi

Post Number: 289
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 04:07 am:   Edit Post Print Post

1) if the snaping would work (allow snap to original enabled) then Move with the help of Perpendicular to reference plane, or with the Guide Saps would be one easy workaround in many cases

2) now in the latest version the allow snap to original dont work even with a composite curves control points(i use in many many cases for tangency adjustments)

3) the allow snap to original would be usefull with the twist, taper, bulge tools too(with the Snap Options with different divisions you could control the exactitude what you make > now always i most make other objects for snaping and after delete them)

(Message edited by jaspi on September 26, 2012)
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Jaspi
Senior Member
Username: Jaspi

Post Number: 290
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 04:37 am:   Edit Post Print Post

the temporary Guide Lines , the Snap Options (divisions option) are very very powerful tools but not if the snap ability is disabled

this is the list of tools where would be a lot of times usefull the snap ability(with allow snap to original option too)
C-Split, C-Extend, C-InsKnot, N-Split, N-InsKnot, N-Extract, the Bulge,Taper, Twist, the Nurbs Control points

(now more than any others indispensable the composite curve control points allow snap to original possibility)

(Message edited by jaspi on September 26, 2012)
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Jaspi
Senior Member
Username: Jaspi

Post Number: 291
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 04:50 am:   Edit Post Print Post

the "next level" really great thing would be if the temporary guide lines and the reference plane intersection point would be snapable

(sorry for insisting so much with the snap thing (i dont no how is it for the others) but i practically always use them: if Move if Rotate if Spline if arc if Reshape if Extend if Where i begin the draw if what direction if Tangent to...)

(Message edited by jaspi on September 26, 2012)

(Message edited by jaspi on September 26, 2012)
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Jaspi
Senior Member
Username: Jaspi

Post Number: 292
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 02:28 pm:   Edit Post Print Post

any hope?
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support@formZ.com
Moderator
Username: Tech

Post Number: 17743
Registered: 04-2001


Posted on Wednesday, September 26, 2012 - 02:40 pm:   Edit Post Print Post

Jaspi,

Yes, we will see if snapping of control points can be added for the future. As far as aligning -- that will probably be farther off -- but you can Scale the control points so they align right now...
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Jaspi
Senior Member
Username: Jaspi

Post Number: 293
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 03:04 pm:   Edit Post Print Post

thanks for response

it was any reason to remove the snaping (allow snap to original) ability for the (composite)curves control points?

(the Edit Controls also was removed i still miss)

(Message edited by jaspi on September 26, 2012)
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support@formZ.com
Moderator
Username: Tech

Post Number: 17748
Registered: 04-2001


Posted on Wednesday, September 26, 2012 - 03:08 pm:   Edit Post Print Post

Snapping to control points was not removed. When did controls snap in the past?
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Jaspi
Senior Member
Username: Jaspi

Post Number: 294
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 03:20 pm:   Edit Post Print Post

in the previous versions
1) where the red lines pointed i was able to snap to the lines
2) where the green lines pointed i was able to create a temporary guide line where after i was able to snap whit the control point
(both was important for taangency or perpendicular constraint)

now nothing is possible
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Jaspi
Senior Member
Username: Jaspi

Post Number: 295
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 03:38 pm:   Edit Post Print Post

here is an example how can be usefull the snap ability with all the deforming tools



i want the upper 1/3 and lover 1/3 and rotate to the snap point located 1/3 (see red and greeen lines)
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Jaspi
Senior Member
Username: Jaspi

Post Number: 296
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 03:49 pm:   Edit Post Print Post

examplefor nurbs>
1) i want the green point to move to the same hight als red point



2) extract where?

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Jaspi
Senior Member
Username: Jaspi

Post Number: 297
Registered: 04-2011
Posted on Wednesday, September 26, 2012 - 03:53 pm:   Edit Post Print Post

and so are many examples with the other tools too (and i do not can make examples to howe flexible and easy would a lot of movements with the Temporary Guide lines combined together)
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robert smith
Senior Member
Username: Bob

Post Number: 896
Registered: 03-2002


Posted on Wednesday, September 26, 2012 - 10:13 pm:   Edit Post Print Post

To me it looks like all the snaps work except the snapping to the control points in teh first place, no?
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Jaspi
Senior Member
Username: Jaspi

Post Number: 298
Registered: 04-2011
Posted on Thursday, September 27, 2012 - 01:07 am:   Edit Post Print Post

Robert

no the allow snap to original dont work
(try itself> create a composite curve and than try to move the control pointsto be tangent or perpendicular one to another see my image)

nothing is snapable in the parts of objects in the images not just the control points
(in some cases are enough to snap to the control points in other cases(see first image) should have the ability to snap to the lines too)

(Message edited by jaspi on September 27, 2012)
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support@formZ.com
Moderator
Username: Tech

Post Number: 17802
Registered: 04-2001


Posted on Monday, October 01, 2012 - 05:10 pm:   Edit Post Print Post

Gentlemen,

Yes, further enhanced control over control points will be added in the future. :-)
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Jaspi
Senior Member
Username: Jaspi

Post Number: 301
Registered: 04-2011
Posted on Tuesday, October 02, 2012 - 04:54 am:   Edit Post Print Post

very very thank you for that