January 29, 2016

Smart Protractor (ver 1.5) manual

Hello. I'm Android Boy.

After releasing [Smart Ruler] for length measurement, I had to develop an app for angle measurement. This app has 3 protractor modes below (touch, plumb, camera).

※ Introduction video

Ⅰ. Touch mode

Ⅱ. Plumb mode

Ⅲ. Camera mode

※ How to lock the plumb?
In plumb and camera mode, touch anywhere on the screen. The red "Holding..." text will blink.

※ Menu & Settings

※ Orientation sensor ??
Most protractor apps are using only an acceleration sensor. But this way has restriction. When the slop is bigger than 60 degrees, the result can be inaccurate.

I tried to find a good solution with an orientation sensor!! It calculates tilt using both magnetic sensor and acceleration sensor. The result becomes more reliable. I recommend that you turn on the option [Orientation sensor] if possible.

Several custom ROM and devices without a compass sensor cannot activate orientation sensor. Please check the specifications and turn off this option.

※ Pro version additional features:
 1) 6 tools (ruler, level, thread) are integrated
 2) More Tilt units
 3) More languages supported
 4) No ads
Get it on Google Play

 What's new
 - v1.6 : Support for OS 11
 - v1.5 : Support for OS 10
 - v1.4.6 : Galaxy S6 support, Optimized on OS 8.0
 - v1.4 : Material design, camera mode
 - v1.3 : Action bar
 - v1.2 : New icon
 - v1.0 : Smart Protractor released (Sep, 2010)

If you have any idea to improve the app, feel free to contact me at androidboy1@gmail.com. Thank you.