From OLPC

Ruler This activity is extra Beta status .xo Bundle – Ruler-2.xo POT | ar | en | es | pt | ru | th  TST All Plans – {{{1}}} MitchellNCharity

Contents 1 Description & Goals 1.1 Summary 1.2 Goals 1.3 Collaboration 2 Visual Design 2.1 Screenshots 3 Development 3.1 Status 3.2 Feature Requests 3.3 Implementation Discussion 3.4 Version History 3.4.1 Source 3.4.2 RPMs 3.4.3 Resources 4 Functional Test 4.1 Basic 4.2 Secondary 5 History

[edit] Description & Goals

[edit] Summary

This is a very simple Activity which provides non-interactive screen images of a ruler, cm and mm grids, and a cm checker board.

The checker broard is mainly intended as a photo target, though moving your head in and out shows interesting perception distortions.

[edit] Goals

• Provide an accessible tool to measure screen-sized objects.
• Encourage length/area measurement, counting.

[edit] Collaboration

None direct. Intended as a supporting tool for exploring the world.

[edit] Visual Design

[edit] Screenshots

From Ruler-1.xo

[edit] Development

Todo:

• There are several good suggestions in Talk, which should be implemented.
• Button selection should change when clicked on (pretty, but lower priority than adding content).
• Missing priority po files: fr.

[edit] Status

[edit] Feature Requests

[edit] Implementation Discussion

[edit] Version History

[edit] Source

[edit] RPMs

• None available

[edit] Resources

[edit] Functional Test

[edit] Basic

Check the size of the screen ruler with a real physical ruler.

[edit] Secondary

Wander around measuring things with your xo. Feedback encouraged.

[edit] History

• 2007-11-29 Ruler-2.xo New name. Improved icon (by HoboPrimate). Initial localization (ar,de,en,es,nl,pt,ru,th). Added rules to edge of screen, and to edge of laptop. Added crufty unlabeled protractors.
• 2007-08-08 Renamed activity to Ruler.
• 2007-07-13 Rule-1.xo Considered renaming project to Ruler from Rule. Haven't yet. People don't like the current name. And as this is more of a tool than an "activity", we could stop bending over backwards to follow HIG naming guidelines that a verb be used. This might also simplify translation. Though "rule" is more applicable to the grids than "ruler" is. Blech.