Need help about curve lines

Hi!
I have next problem...
When i draw a straight line, after saving it has perfect edges like on picture below:
[img]http://img204.imageshack.us/my.php?image=71478511wz0.gif[/img]

But the problem is when i draw curve line, after saving edges are not fine, you can see pixels there on curves like on pic below:


[img]http://img204.imageshack.us/my.php?image=34513118nx1.gif[/img]

I'm designing banner and i need to have perfect curve lines...

If anyone can help, thanks!:)[/img]

I don't see anything abnormal... except for that aliasing due to GIF transparency. If you are going to save something with a transparent background, try using PNG instead of GIF. GIF images only have 1 degree of transparency. Either a pixel is completely transparent or not at all. PNGs have varying degrees of transparency. Try PNG and hopefully this will help

It's not that...When i draw a curve line, edges are not fine, you can see pixels on them, like stairs, i want to make smooth edges, precise and fine...did i explain well?:)

If you're working in Photoshop and saving a curve as a bitmap image, then the curve image you've uploaded looks exactly as it should. A bitmap image is made up of pixels. If you look closely at any bitmap image, you will see the pixels. That curved line is as smooth as it will get at that resolution.

You can however work in a vector illustration program such as Adobe Illustrator, and that will allow you to create curves that will always look smooth when you zoom in. Vector images are made up of geometrical data, and not pixels.

i know that(about vector graphics), but is there any way to make in photoshop vector graphic to be fine and without pixels?

This is the problem. See the edges around circle. They are not straight, they are rough.

Aaah, if you want to make vector paths/shapes in Photoshop, make sure this "Shape layers" button is pressed... not the third "Fill pixels" one. If you do this, then you can edit your shapes, and scale them freely without the aliased edges. Hopefully this helps!

Also, make sure you are in Image>Mode>RGB... NOT in Indexed mode... which usually leads to aliasing problems.

I just thought of another possible solution. Are you using the Elliptical Marquee tool to select the circle, then filling it in?

(Sorry for triple posting)

Yes, i'm using elliptical marquee tool....?

Make sure the Anti-Alias checkbox in the top toolbar is checked.

Thanks tkgd2007, it helped!