How to make a circle? - Polyloop

Shonner · 17th August 2004, 05:09

I'm trying to draw a circle in NURBS mode. How do I keep the circle from sticking in the corner of the BREP?

Thomas · 17th August 2004, 17:29

huh ? You have it only when you draw your circle ?? or after doing anything on it ?
I drew a lot this last week without any problems...

Hugo · 17th August 2004, 21:13

Are you trying to draw a circle by yourself, without using "circle preset in the tool ?
Because i can obtain something like you by drawing with the "Curve" tool ....

If you do that, the last and the first point don't have interpolation for creating the end of the circle.
Don't forgot to use while drawing the option for close the open curve, can help in many case.

Sorry if you use the circle tool .... i just try to understand what's happen.

Shonner · 18th August 2004, 04:18

When I use the Circle Tool, I get this result. But I don't want the four points on the circle. When I pull on the corners of the box, the points on the circle create creases. I don't want that. What I want is a nice tangent curve instead.

Thomas · 18th August 2004, 10:31

If you want a perfect circle with only 4 control vertex, you cannot if I'm not wrong...

Hugo · 18th August 2004, 14:47

I don't really understand why you need that ...
Could you explain why you want 4 control points ?

Shonner · 18th August 2004, 22:02

So I can then pull on a BREP corner and have the circle stretch inside it while keeping smooth curves (no creases). How do I tell a circle's curve to hug or not to hug a BREP point?

I extrude from these lines to get the exact 3D shapes I want. But if I can't even control the lines first... not good.

17th August 2004, 05:09	#1 (permalink)
Shonner Extrusion Join Date: Apr 2004 Posts: 190	How to make a circle? I'm trying to draw a circle in NURBS mode. How do I keep the circle from sticking in the corner of the BREP? __________________ Shonner

17th August 2004, 17:29	#2 (permalink)
Thomas Always learning new stuff Join Date: Jul 2002 Location: Merignac, France Posts: 11,319	huh ? You have it only when you draw your circle ?? or after doing anything on it ? I drew a lot this last week without any problems... __________________ Polyloop owner & Administrator - no support by PM or email. Polyloop [EN/FR] - Meuuh [FR +16 ans] - Totyo [FR] - Pixologic [JOB] - Le ZBlog [JOB] - La3dpourlesnuls [FR]

17th August 2004, 21:13	#3 (permalink)
Hugo Rhymes with Hell. Join Date: Jun 2003 Location: France Posts: 2,987	Are you trying to draw a circle by yourself, without using "circle preset in the tool ? Because i can obtain something like you by drawing with the "Curve" tool .... If you do that, the last and the first point don't have interpolation for creating the end of the circle. Don't forgot to use while drawing the option for close the open curve, can help in many case. Sorry if you use the circle tool .... i just try to understand what's happen. __________________ WARNING: The following posts contain explicit content. By viewing them, you are making the following statement: I am viewing explicit content.

18th August 2004, 04:18	#4 (permalink)
Shonner Extrusion Join Date: Apr 2004 Posts: 190	When I use the Circle Tool, I get this result. But I don't want the four points on the circle. When I pull on the corners of the box, the points on the circle create creases. I don't want that. What I want is a nice tangent curve instead. __________________ Shonner

18th August 2004, 10:31	#5 (permalink)
Thomas Always learning new stuff Join Date: Jul 2002 Location: Merignac, France Posts: 11,319	If you want a perfect circle with only 4 control vertex, you cannot if I'm not wrong... __________________ Polyloop owner & Administrator - no support by PM or email. Polyloop [EN/FR] - Meuuh [FR +16 ans] - Totyo [FR] - Pixologic [JOB] - Le ZBlog [JOB] - La3dpourlesnuls [FR]

18th August 2004, 14:47	#6 (permalink)
Hugo Rhymes with Hell. Join Date: Jun 2003 Location: France Posts: 2,987	I don't really understand why you need that ... Could you explain why you want 4 control points ?

18th August 2004, 22:02	#7 (permalink)
Shonner Extrusion Join Date: Apr 2004 Posts: 190	So I can then pull on a BREP corner and have the circle stretch inside it while keeping smooth curves (no creases). How do I tell a circle's curve to hug or not to hug a BREP point? I extrude from these lines to get the exact 3D shapes I want. But if I can't even control the lines first... not good. __________________ Shonner

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