How to use
1.Start the application.
2.Input the height of tsunami you want to show.
3.Input your own height.
4.Input the distance of the object (usually, “object” is a wall of building standing in front of you) as precise as possible if you use can use a measuring tape.
5.Set or determine a target (e.g. cross mark) on the wall at an arbitrary height.
6.Hold your smartphone in an upright position at your eye height then tap the first cross with the target on the wall.
7.Tap the second cross appeared 1/8 above the bottom of the screen with the same target on the wall. While you are tapping these two crosses, never change the holding height of your smart phone, only to change the angle of it.
8.Tsunami in blue appears and will be projected on the wall. Do not change the holding position of your smartphone only to change the angle and viewing direction while you see the “tsunami”.