The logicalcoordinates are the offsets as they would be if the pixels themselves were scaled.
逻辑座标则是像素本身缩放时，跟著缩放的位移。
2
With your selected pixel coordinates and a single-layer base reflectivity map, the logical process for detecting precipitation near a spot on the map is straightforward.
使用选定的像素坐标和单层基本反射率图，检测地图中某个场所附近的降水的逻辑过程将十分简单。
3
Google does, however, offer its own service to map between logical names and coordinates, which is known as geocoding.