![best metric scale ruler best metric scale ruler](https://clipartspub.com/images/measurement-clipart-ruler-2.jpg)
This means, you can use it for measurement of length, height, depth, width, and area. Measures length and surfaces between two or more points in a three dimensions ( 3D ) environment using the latest technology of Augmented Reality ( AR ). The attitudes of where you are and the measurement point are not set correctly. The measurement point is as high as the eye line.Ģ. Please note that you can not measure correctly under the following conditions.ġ. Adjust the angle so that side of your iPhone/iPod touch (If device is the iPhone, it's the side with volume button) and the point of measurement (normally it is in same altitude as your place) are on a same line from your eye. Hold your iPhone/iPod touch with your left hand and turn it to the direction of the point of measurement. If they are equal, you do not have to change it from "0m".
![best metric scale ruler best metric scale ruler](https://ae01.alicdn.com/kf/HTB1PUyaNpXXXXXNXFXXq6xXFXXXB/Engineer-12-6-Multicolor-300mm-1-100-1-500-Triangular-Metric-Scale-Ruler.jpg)
These are for adjusting the differences between the altitudes of your location and the point of measurement. You will see the items, "altitude of your location" and "altitude of measurement point" on the screen. It measures distance with using triangulation system based on the level of your eyes calculated by your height and the tilt of your iPhone. Select "Measurement setup" to enter your height. "Air Ruler" is the application for iPone/iPod touch to measure distance with an accelearation sensor with ease.