using CS3 on iMac 10.5.4. creating a new doc. specify canvas size 6.302 inches x 4.56. when i check on the canvas size from within the doc it has become 6.303. I change it back to 6.302. click OK. go back into canvas size to check and it’s back to 6.303! please help!
It depends on your resolution. If you have a resolution of 1 pixel per inch, you can’t have a document that’s 1.5 inches. Photoshop will round it off to the closest size that the number of pixels in that dimension will allow.
However, pixels can be any size. You can take your pixel dimension and divide by your target width and use the resulting PPI. Might be something like 254.189 PPI.
But as said, you’re talking about a difference so small as to be inconsequential. Unless.. "lisa mmm"… micro-millimeter?????
Here’s another way to look at it. Pixels ("picture elements") are the smallest unit of a Photoshop image. Magnify any Photoshop image, and you will see a colorful checkerboard of colors. Each of those color squares is one pixel.
So, getting back to your question, let’s say that you’re setting square tiles on a bathroom floor. And your tiles, like pixels, are fixed size and butt up against each other like a checkerboard. Now when you finally reach a wall with those tiles, they may fit exactly, or you may have to use a tile cutter to get the last row, closest to the wall, to fit.
But with pixels, Photoshop doesn’t supply a tile cutter, so you may have a minor image size adjustment to get them to fit properly. If you need the tile cutter, you place your image in another application (as I mentioned earlier) in an exactly sized box which can mask the unwanted portion of the last row of pixels.
Great analogy Neil. But (sorry to muddy the waters here) tiles, like pixels, are fixed size Imagine a Home Despot with an almost infinite number of tile sizes. You could buy all 3 sq tiles. Or all 3.06 sq tiles, or all 2.97 sq tiles and so on. There might be a certain size tile that will fit your floor perfectly. The only criteria are the tiles must be square, in a grid, they can not be cut, and they all must be the same size. But what that size is… is pretty much up to you.
I did consider the technical variables as I wrote the analogy. And I toyed with the idea of editing my post, but in the interest of keeping it simple, I left it as is. And most important, the concept was understood.
In a bathroom, it is common to see a tile wainscot, like the floor so in Neils analogy that would be Big Data (information beyond the Canvas area)? Or maybe a 3-D feature in CS3 Extended?
