Rectangular Marquee not Snapping to Guides

Discussion in 'Photoshop' started by Dennis Hughes, Jul 13, 2005.

  1. I have a rectangular sign, one layer only, that I have put guides bordering
    the four sides. I hvae done this very precisely at 700+ magnification in
    order to have the exact pixels.

    When I use the marquee tool to add a rectangular selection inside th guides,
    fitting the guides exactly, the top horizontal selection jumps one px above
    the top horiz guide. The left border of the selection stays on the guide.

    I have all the "snap to" items checked.

    Any idea what is causing this?

    Thanks,

    Dennis
     
    Dennis Hughes, Jul 13, 2005
    #1
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  2. Dennis Hughes

    edjh Guest

    Are you sure your guides fall on exact pixel dimensions? In other words,
    guides can be anywhere, but the marquee must be on a whole pixel
    increment. It can't be between two pixels (there are no half pixels
    allowed). Try nudging with the arrow keys and see if you can get it exact.
     
    edjh, Jul 13, 2005
    #2
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  3. At 1600x I checked the guide and it is right on.

    I used the pencil tool at 1 px and added a line of horiz pixels adjacent to
    the top of the shape and the guide appears right on the line between the two
    colors.

    BUT, when I move the guide just a hair down so I can see some of the shape's
    color just above the guide, the marquee selection snaps into its proper
    place.

    Maybe this is a bug of some sort.

    Thanks for the insightful thought. Moving the guide solves my problem, but
    brings up a Photoshop problem.

    Dennis
     
    Dennis Hughes, Jul 13, 2005
    #3
  4. Dennis Hughes

    Flo Nelson Guest

    I've experienced something similar - when I turned all snapping off, I was
    able to draw the marquee precisely - go figure.

    Flo
     
    Flo Nelson, Jul 13, 2005
    #4
  5. Dennis Hughes

    Peadge Guest

    Do you have a feathering value entered for the Marquee Tool?

    Peadge :)
     
    Peadge, Jul 18, 2005
    #5
  6. I have 0 entered.

    Dennis
     
    Dennis Hughes, Jul 24, 2005
    #6
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