That depends on what you mean.
1 pixel by 20 pixels is just a (short) line.
There are many ways that could be converted into a circle (pie chart, pixels along the circumferance, move pixels to fill a circular area, etc.).
Polar coordinates on a 20 pixel x 20 pixel canvas?
Hi Chris sorry for being short I meant 1x20pixel is my radius, so just to make a perfect circle clockwise or anticlockwise from that.
clockwise or anticlockwise
Would there be a difference?
Hi J yeah say I had 10pixels black to the left (the start of my line of pixels) and 10 pixel red to the right (at the end of my line of pixels) of my 1×20 pixel line of pixels if I did clockwise the red pixels would be on the inside and black on the outside, if I did anti clockwise red would be on the outside and red would be on the inside.
I was hoping a filter like polar coordinates could do something like this?
(I want to be able to quickly create a perfect circle from a small series of pixels as opposed to having to manually create each and every circle via shapes, or selection tools etc)
You can do it with polar coordinates. You extend the line (down in your example) so you have a 10 x 20 block of black butting 10 x 20 block of red. Use transform to do this (just pull down on the edge handle). Then make you image 40 x 40 and use nearest neighbor to do it. You’ll need to rotate the image 90 degrees to get the right effect. Then run polar coordinates. Flip vertical (before polar) to get the counter-c effect.
J
Hi J I’ve done what you have said but I didnt have any luck with it. (Yes I did end up getting a circle but all I got was a redbgox with a black circle inside). Am I meant to have a specific sized selection going beore I run polar coordinates?
Yep (or after 😉 ). There’s probably a better way to do this, but I would think you could action all the transformations etc., even based on the size of the selection (next time with a 30 x 1). Though I think you really need an odd number to make this all work "best".
J
