Circle and ofCircle [SOLVED]

Hello!
I have strange problem.

I use ofPath.

ofPath path;
ofNoFill();
ofSetColor(255);
path.hasOutline();
path.setCircleResolution(80);
path.circle(0,0,radius);
path.setStrokeWidth(10);
path.draw();

I get

When i Use

	ofSetColor(255);
ofNoFill();
ofSetLineWidth(10);
ofSetCircleResolution(60);
ofCircle(0,0,radius);

I get

When I comment ofNoFill(); I get cool circle.
Why ofNoFill(); affected so?
I would like to have only stoke. What should i do now?
I think filling color with alpha channel is not cool solution.
Thanks for any reply;)

hi there

was just running into the same problem on OF 008

see here how to normally solve this for OF 007:

then found out about ofxShivaVG see this post as alternative for OF 008:

best! arne.

Hi, thanks for reply:)
I am working on OF v. 008.

ofEnableSmoothing didn’t help
When i used set GlutDisplayString program doesn’t run properly. It showes console only for few ms. I do not know if it ismy computer faul.
I do not have possibility to check it in that moment.

I am going to run that on Raspberry Pi. I do not know if ofxShivaVGRenderer would work good on that problem.(i do not even if it would run).

I found quite good answer in
http://forum.openframeworks.cc/t/draw-an-arc-of-a-ring/12791
Tomorrow I will check that possibility on Raspberry
Thanks for help anyway:)