Illustrator Pixel export

[LilyRose233]

Hi!

I couldn't figure out why. I was exporting for high resolution png/jpg img and after I export the img, the straight lines of the image don't have any pixels while the curve lines do, I don't know what I've been doing wrong.

I did this on Adobe Illustrator and I tried rasterizing it, ticking off the anti-alias, and changing the ppi to a much higher ppi (3000) as well as the artboard size for 1-pixel error, changing it to type/art optimized but it is still the same for curve lines.

as you can see in the image above the curve lines has pixels and straight lines doesn't. Is this normal for curves to have pixels even if exported at a higher resolution?

[Monika Gause]

The image consists of pixels like a piece of math paper. Each square can only have one color. The steps are the only way to draw curves at all. 

Do you really need to export pixels?

[kglad]

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.

<moved from using the community>

[Test Screen Name]

Nothing is wrong. This is because your images are made of pixels. The line is antialiased, but when you zoom out antialiasing makes edges smoother. Just stop zooming in so much, you won't like what you see.

[Brad @ Roaring Mouse]

You're not doing anything wrong at all. It all depends on where your pixels fall.

Without Anti-aliasing, normally, any pixel is either ON or OFF depending if the average value in that pixel is above or below a 50% threshold (left). Anti-aliasing helps this by rendering the actual average value (sometimes looking at pixels around it). On curves/angles this is extremely helpful, but on straight lines, it will only show if the edge of an object falls partway between pixels. In your example, the vertical edge falls perfectly into the edges of the pixels, hence, no anti-aliasing is needed. However in my example, if the edge falls between pixels (as it does at the top left) it will anti-alias accordingly. Anti-aliasing on vertical/horizontals like this is less desireable in the end, so the algorithm in Art-optimized tends to create a bit sharper edge than Type-optimized (which is really only useful for improving typography at smaller size but makes non-type objects a bit soft)