Insets specify a distance from each edge of a rectangle. 插入指定的距離,從矩形的每一邊框。
The rectangular section of the inverse Distance Weighting has the lowest result in interpolating signal strength and difference of locating errors. 而矩形分區距離反比權重式內插演演算法,內插出的無線電波地圖用來定位能達到最好的精準度。