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, 08:52, 22 July 2010
[[File:Ruler.png|300px]]
== Where to get Ruler ==
[http://activities.sugarlabs.org/en-US/sugar/addon/4192/ Activity] | [http://git.sugarlabs.org/projects/ruler/repos/mainline Source]
== About Ruler ==
[[File:Ruler-icon.png]]
Ruler is a simple collection of measurement tools that are displayed on the screen.
<gallery>
File:Ruler-fig1.png|CM and MM scales
File:Ruler-fig2.png|CM and MM grid
File:Ruler-fig3.png|angles
File:Ruler-fig4.png|checkerboard
<gallery>
Since the OLPC XO computer has a 200 DPI display, the rulers are quite accurate. One other hardware, where the display resolution is not known, their is a spinner to let the user set the DPI. Ruler saves this value to the Journal, so it need not be set on subsequent uses of the Activity.
=== Filing bug reports ===
* [https://bugs.sugarlabs.org/newticket?component=Ruler Submit a bug report]
* [https://bugs.sugarlabs.org/query?status=accepted&status=assigned&status=new&status=reopened&component=Ruler View open tickets]
[[Category:Activities]]