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G-Ruler is Dashboard widget that provides a gorgeous on-screen ruler to measure your screen. It's ideal for graphic designers and Web developers who wish to measure screen elements.

Features:

  • Choose from Pixels, Picas, Centimeters, or Inches
  • Flip the Ruler between horizontal and vertical
  • Pinpoint pixel perfect measurements with a tracking crosshair
  • Add multiple rulers each with different settings
  • Choose between four themes, Azure, Bubblegum, Onyx, and Clear.

What's New

Version 1.6:
  • Added live cursor tracking
  • Crosshair cursor when over the edge
  • Picas added
  • Web link + version No. on back panel
  • Updated Dashboard Icon

Requirements

Mac OS X 10.4 or later

*Previously available here

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G-Ruler User Discussion

Nobody has reviewed or commented on this app yet. Add your own comment and get a discussion going!
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Roro01 Member IconComment+0
Roro01
+0

NOTHING TO DO WITH MEASURING BANANAS OR PENCILS!!!

It is simple: One inch = 72 pixels on a screen with a resolution of 72 pixels per inch. However, on a screen with a resolution of 96 pixels per inch, for example, 1 inch = 96 pixels. So, if the ruler is drawn as a simple 72 dpi image (i.e., it is impossible to adjust it) it will show inches accurately only on a screen with a resolution of 72 pixels per inch. On a screen with a resolution of 96 pixels per inch, it will show 72 pixels as an inch instead of 96.

The guy who posted anonymously on 7 Aug '05 is absolutely right and thanks to him I avoided downloading G-Ruler and instead downloaded Free Ruler today.

Reply0 replies
Version 1.6
cruzdrew Member IconReview+2
cruzdrew
+0

Seems like a good sturdy ruler Thanks!! Sometime i like being able to measure stuff before printing it. And this seems to work accurately for that!

Reply0 replies
Version 1.6
Anonymous Member IconReview
Anonymous
+0

Apart from being useful for graphics work and web development, the design is a retro wonder for Brtish people of a certain age. Stylish and sly, and with a nice range of colours too!

As for the guy who thought he should be able to use it to measure real-world objects (wuh?) - man, if it's a problem for you, why not write your own widget instead of ragging on other people's stuff?

Reply1 reply
Version 1.6
amake (developer)
+0

All I ask is that measurements that are reported to be "inches" and "centimeters" actually be correct. If they are doomed to be incorrect, then why include them at all?

Anonymous Member IconReview
Anonymous
+0

I should point out, this is widget is for measuring on-screen elements (websites, applications etc.).

The previous poster insisted that he should be able to measure real world items (bananas and pencils etc) with G-Ruler.

To anyone experiencing the same issues, may I recommend getting a real ruler and a real life to go with it.

Al the best,

Tom.

Reply1 reply
Version 1.6
amake (developer)
+0

Then don't include real-world measurements like inches and centimeters! It's really very simple--either make it right, or don't do it at all.

Anonymous Member IconReview
Anonymous
+0

I contacted the author about the problem with the physical measurements (inches and centimeters) but he didn't seem to care.

People are saying "why would you want the on-screen ruler to match up with a real ruler?" The counter-argument is, "then why include in or cm at all?" If you're going to include physical measurements, at least bother to make them accurate.

For those who don't understand, the issue is that the ruler is drawn as a simple 72dpi image. Unfortunately, not all screens have a density of exactly 72 pixels per inch. So on any such screen, such as on all iBooks and PowerBooks, the ruler will not be accurate for any physical length measurements.

Reply1 reply
Version 1.6
pmp777
+0

Just to echo what others have said, this ruler won't actually measure inches or centimeters. It will pretend too -- so you may *think* you're actually measuring inches or cms -- but it will be inaccurate on most Macs. That's really stupid, and it makes G-Ruler a poor app to add to your Mac. Use another free ruler. Other reviewers may not see how having a screen ruler reflect actual, real-world measures might be useful, but perhaps it's just a lack of imagination (or common sense) on their part. Having an on-screen ruler is useful. Even not having an on-screen ruler is OK. Having an on-screen ruler that's inaccurate (like G-Ruler) is bad.

Anonymous Member IconReview
Anonymous
+0

This is such a cool tool! Handy for getting the interface looking exactly as it should in HTML compared to the Photoshop design. A colleague has one for PC and it looks pants compared to this one. The shatterproof look takes me back to schooldays. Simple to use. Have not been using it long so can't vouch for stability.

Reply0 replies
Version 1.6
Anonymous Member IconReview
Anonymous
+1

Works perfectly and it is something I will use often, unlike so many of the crappy pieces of usless eye candy out there. Would like to see the lenght exceed 600 pixels though...say to 900.

Reply0 replies
Version 1.5
Anonymous Member IconReview
Anonymous
+0

The measurements are 100% pixel perfect.
Check them against Photoshops.

Its not a measurement of your physical screen size, that would be pointless!

Reply0 replies
Version 1.5
Anonymous Member IconReview
Anonymous
+0

Too bad it's not accurate... the cm's dont match up w/ my real ruler..

Apple LCD studio display, 17 inches, 1280*1024... but if done right.. that shouldnt matter...

Reply1 reply
Version 1.1
Anonymous Member Icon
Anonymous
+0

The measurements in the app are pixel - check it against the toolbars in Photoshop.

Its not meant to be a measurement of the physical size on the screen, what use would that be?

Anonymous Member IconReview
Anonymous
+0

Works as promised and looks fantastic!

Reply1 reply
Version 1.1
sam051
+0

I really like tool/ this is the best to check pixel perfect code for my design. I found one of the useful free online tool(http://www.cssprecise.csschopper.com/) to check pixel perfect code for design with great features.

user icon+10
Orlandoech
Version 1.6
> 5 6

Ratings

Overall
(6)
Current Version (1.x)
(6)

Details

Downloads 11,197
Version Downloads 7,994
License Free
Date 24 May 2005
Platform OS X / PPC 32 / Intel 32
Price Free