Re: Marquee tool is not exact.

R
Posted By
rowsdower
Sep 6, 2003
Views
840
Replies
0
Status
Closed
edjh wrote in
news:otm6b.1868$:

rowsdower wrote:
I just noticed this problem trying an excercise in the Bert Monroy book Photorealistic Techniques with Photoshop and Illustrator. I am using a 10 x 10 in. document with a gridline every one inch and 11 subdivisions set to 72 dpi. I have to make a rectangle using the the marquee tool and select 4 subdivision down and 11 across and fill it in with a color. It sounds easy enough right? My problem is, no matter what I do, when I select using the marquee tool, the area being selected is going beyond what I want. I can’t get the marquee to go to all 4 sides evenly because it is expanding the selected area and when I use the move tool it just bounces over the guide. I don’t have feather set but can there be something else I don’t see? Please help, thanks.

Haven’t done the math but I bet this is what you’re getting:
Selections are pixel based and therefore must exist and move in increments no smaller than one pixel. So trying to force a marquee selection to match inches or other units isn’t going to work because such measurements can result in fractions of a pixel.

Okay I gotcha. I got what I wanted but I just wasn’t expecting it to work out the way it did but all is well. Thanks.

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