距離高度寬度測量工具

When [observer's foot] and [target feet] in the same horizontal line, while [camera], [observer's foot], [legs target object] The three connection points on the formation of a [right angle triangle]. [Observer] with [camera phone] aligned with the center of [foot target object], then you can use [the height of the camera height = observer * 0.85] and mobile phones [direction sensor] calculated [observation who foot the distance] to [target feet] of a.

At this point, then [camera phone] aligned with the center [at the top of the target], you can use the phone's [direction sensor] calculated [height of the target substance]. Finally, then [Camera phones] aligned with the center [of the object on the other side foot], can use the phone [a direction sensor] Calculation [width of the target substance].

When calculating [target] in [distance, height, width], will use [Basic trigonometric function] and [law of cosines], calculated in the APP [DESCRIPTION] in more detail.