Moving a point rounds down its coordinates

[RonnyC]

Hello fellow NX'ers

I 've encountered a strange behavour of NX, or at least it seems strange to me.

Let's say you create an associative point with parameters:
X=1.234567890
Y=0.000000000
Z=0.000000000

Then you move this point , lets say 1mm in Y direction.
( either by edit-trandform/edit-moveobject or stretch curve)
You would expect the parameters to change to:
X=1.234567890
Y=1.000000000
Z=0.000000000

Instead the parameters become:
X=1.234570000
Y=1.000000000
Z=0.000000000

so it's rounded the coordinate down.
Why is that?
Could it be some tolerance setting I could change?

Thanx for any replies.

 

[JohnRBaker]

What version of NX are you running?

I just tested this using NX 7.5.2.5 and the value of X did NOT change when I moved the Point 1mm in the Y direction.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[RonnyC]

Hi John,

thank you for your reply.

I have NX3, NX5 and NX6 installed.
In all these version , I notice this phenomenon.

So probably it was solved in NX7.5 , or do you think it is a settings issue?

Regards,

 

[JohnRBaker]

I'm sorry, but I'm not able to reproduce your reported behavior using ANY version of NX, including NX 3.0, NX 5.0 or NX 6.0.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[MickyV007]

John,

i can reproduce it in NX4 and NX7.5.1.5, see pdf doc attached. Made it with NX7.5.

Best regards,

Michäël.

NX4+TC9 / NX6+TC8Unified / NX7.5 native

 

[RonnyC]

That's odd.

I've attached a testfile I made in NX5.0
Could you give this one a try.
Any transform operation seems to reset the precision to 0.00001


If anyone else feels like trying, curious if I'm a lone freak in this behavour.

Regards

 

[JohnRBaker]

OK, go to...

Prefernces -> User Interface -> General

...and check the value you have set for 'Displayed Decimal Places' - 'Information Window'. If not already, try setting this to 11 or greater.

Note that this setting has NO impact whatsoever on what NX stores in terms of the database, but rather only controls the number of decimal places used when displaying information.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[RonnyC]

@Michäël: Thank you for your reply.

@John: Sorry that doesn't solve it. anyway it's not an issue of precision in the information window. The actual expression is rounded down. (visible in the expression editor)

Best regards,

Ronny Ceulemans
Bosal Research

( NX3 / NX5 / NX6 )

 

[JohnRBaker]

OK, Now I see the behavior. I would recommend that if you're using an associative point, that you edit the expressions instead of using the Move function.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[JohnRBaker]

BTW, I've opened a PR and I'll provide an update when I learn something.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[RonnyC]

Hi John,

Thanx for your support.

Just FYI here 's how I encountered the behavour.

I have some models op bent pipes which are models based on unassosiative "dumb" points.
I was trying to change this by replacing these points with new associative points, but instead of inputting the coordinates I deemed it easier to create a point randomly and move it to the location required.
That's when I noticed the coordinates got rounded down.

I 'll use the more "labour"-intensive inputting method for now ;-)

Best regards,

Ronny Ceulemans
Bosal Research

( NX3 / NX5 / NX6 )

 

[JohnRBaker]

UPDATE: I was just notified that this problem will be fixed in the next full release of NX. As soon as I'm able to I will test this and update this thread.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.