area of raster的意思|示意

The previous method to create framework lines of area was almost raster.

以往计算面域骨架线大多采用栅格方法。

Raster images can be of very huge file size, especially when the area is large.

影像档案可以很大， 尤其是当影像档案详细 地覆盖广阔的面积时。

Raster data is non-geometric data defined by a grid of values covering a spatial area.

光栅数据 是由覆盖空间区域的网格值所定义的非几何数据。