Photoshop "Snap to" not working

[Pedro Make]

Hi all;
My photoshop snaps does not appear to working correctly. I have
the snap to guides checked.... and when you use your selection tool
it appears to snap to the guide... but when you zoom in on the guide line, its actually snapped 1 or 2 mm away from the guide... any suggestions?

Thanks
in advance

[Ghastly]

how close are you zooming in?...is it *optically* (1 or 2)mm from the guides? because at very close levels of magnification, the pixels themselves may represent much greater *optical* sizes..I assume that your pixel resolution is measured in inches..300dpi etc.. and thus your guides positioned according to the metric system of measurement will rarely ever be on the borderline of two rows/columns of pixels...If you want any sort of accuracy in photoshop ( :eek: ) you have to keep your measurement systems consistant.

As a little exercise...make a new document in Photoshop, set the size to say 20*20cm with a pixel resolution of say 150 pixels/cm...make a guide at 10cm from any edge, and use snap...zoom in real close on it.

Now change the resolution to 7.5 pixels/cm and repeat....can you now explain whats happening? ;)

oh and...welcome!



*edit*..if the marquis edge is *physically* (1 or 2)mm away from the guides; then unless some plonker thought it would be funny to make your gridlines white (so you can't see em on white paper...the most popular colour for a new document in Photoshop) and you happen to be snapping to grid...snap probably isn't working properly...solutions would then be based around re-installing, contacting your vendor etc...

[Pedro Make]

how close are you zooming in?...is it *optically* (1 or 2)mm from the guides? because at very close levels of magnification, the pixels themselves may represent much greater *optical* sizes..I assume that your pixel resolution is measured in inches..300dpi etc.. and thus your guides positioned according to the metric system of measurement will rarely ever be on the borderline of two rows/columns of pixels...If you want any sort of accuracy in photoshop ( :eek: ) you have to keep your measurement systems consistant.

As a little exercise...make a new document in Photoshop, set the size to say 20*20cm with a pixel resolution of say 150 pixels/cm...make a guide at 10mm from any edge, and use snap...zoom in real close on it.

Now change the resolution to 7.5 pixels/cm and repeat....can you now explain whats happening? ;)

oh and...welcome!



*edit*..if the marquis edge is *physically* (1 or 2)mm away from the guides; then unless some plonker thought it would be funny to make your gridlines white (so you can't see em on white paper...the most popular colour for a new document in Photoshop) and you happen to be snapping to grid...snap probably isn't working properly...solutions would then be based around re-installing, contacting your vendor etc...



Silly me;
Thanks for that.... I had my file setup in pixels / inch and my preference units
setup in mm.... That seams to have solved it.

Thanks again. that wee exercise help me understand it alot

[Ghastly]

no worries :)