topic Re: How to Modify a Simple Spline? in 3D Part & Assembly Design

How to Modify a Simple Spline?

ptc-2019248 — Sat, 05 May 2018 07:46:24 GMT

Hey all,I'm back to Pro/E after a recess on SolidWorks and it seems that somethings changed on modifying sketched spline curves.If you sketch a simple two-point spline curve between two line segments, you typically make the spline tangent to each line segment to produce a smooth

Re: How to Modify a Simple Spline?

CallBob — Mon, 30 Jan 2012 12:26:57 GMT

Good morning Karl,

You can make a "conic" as you suggest in your second paragraph. The spline creation, with 3 or more points, is 3 buttons down from there (if you have your buttons on the right side of the screen)

Wecome back from Solidworks!

Best regards,

Bob

Re: How to Modify a Simple Spline?

ptc-2019248 — Mon, 30 Jan 2012 14:11:06 GMT

UPDATE!!!!

So, I got in contact with my VAR about this issue. It seems that in WF4, the functionality that I'm talking about works with no problems. Once you go to WF5, you can no longer drag the control polygon. They have no idea why this changed. There may be a config setting or something that changes this.

If anyone knows, let me know!

--> Karl

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Yeah, you could approximate a spline with conics, but its not really what I've done in the past. Thats a good workaround, though. I'd forgotten about using conics.

One person on a different forum recomended modifying the spline first, then making it tangent to your segment "levers" at each end. However, if you have to fine tune it more, then you have to delete your tangency in order to modify the spline again, then replace them again. PITA.

Another person on the same forum said my usual method worked for them and they have WF5. Somethings up...

There is a way...must use The Force...

Re: How to Modify a Simple Spline?

ptc-2019248 — Mon, 30 Jan 2012 16:39:01 GMT

Double Update:

I guess its a knows bug that spreads between early WF5 and Creo Versions

My vendor's response:

"It looks like PTC knows about the issue we went over this morning. It also appears there is no solution yet for Creo but it looks like if you get WF 5.0 build code m110 you should get that functionality back. See attached picture. I know this probably is not the answer you are looking for but at least you are not crazy right. I also checked to see what build code of WF 5.0 is out and it appears M120 is out so if you get WF 5.0 M120 you should be good to go. Let me know if you have any other questions."

I'm shocked that a bug like this would spread out over two full releases. If I had to make modifications to a surface model that I created in WF4, I'd be screwed. This is like not being able to change the dimensions of a circle once you tied down it's center point. So, now I have do download the latest WF5 release, do my work, then make another copy of my work in Creo so that I can send it to my client. I used to think that the one thing I liked better in Pro over SolidWorks was surfacing. Without this functionality, surfacing is almost unuseable.

Let's get it together, PTC.

Re: How to Modify a Simple Spline?

James62 — Tue, 31 Jan 2012 21:20:05 GMT

hi Karl,

I think this is only possible inside style feature now.

Have you got ISDX? (interactive surface design extension) At least thats how they call it in Creo 1.0 these days.

Re: How to Modify a Simple Spline?

Patriot_1776 — Mon, 13 Feb 2012 22:51:53 GMT

This, and many other issues, is why I'm staying on WF4 until I absolutely HAVE to switch. Every time I use Creo, I get a massive headache.

Re: How to Modify a Simple Spline?

JasonL.Williams — Mon, 07 May 2012 13:26:23 GMT

Apparently fixed in Creo 2.0. Can edit control polys for free, 1-tangent, and 2-tangent.