Flakey Streamline Operation

[capnhook]

7.5.1.5.....

I keep getting the error message...... "The Flow and Cross curves do not intersect within tolerance. Select intersecting curves." ......in a pretty simple streamline operation.

I have checked and rechecked the endpoints of each and every flow and cross curve I have, and the distance between them is always zero, out to nine decimal places. I HAVE INTERSECTING CURVES.

Where is this wonderful "intersect tolerance", and why is it stopping me from completing this Streamline operation?

Hint: I get no cut direction indicators when I ask for them, either.



The error message says "do not intersect within tolerance". Changing the chaining tolerance has not affected this broken operation.

What is "intersection tolerance"?


I replaced the cross curves (splines) with lines connecting the flow curves, checked each intersection to make sure I have a perfect intersection (distance is ZERO between endpoints...). Now, the operation HANGS!


IR 6438738




Proud Member of the Reality-Based Community..

 

[cowski]

How many flow/cross curves do you have? If you have a 4 sided patch with more than 2 flow curves (or more than 2 cross curves) they will have to touch (within tolerance) at each intersection, not just end points.

 

[capnhook]

Thanks for the reply, cowski.

Two flow curves, two cross curves.


I still have not found out what "intersection tolerance" is.

Proud Member of the Reality-Based Community..

 

[JohnRBaker]

Could you provide the part file for us?

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

http://www.siemens.com/plm

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