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。

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Which workflow to get polygons from a geographic area and a raster file?

工作流从一个地理区域获得多边形栅格文件？

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I used clip to get a smaller raster file for a smaller area.

我用夹失掉较小的光栅文件为较小的地域。

youdao

I used clip to get a smaller raster file for a smaller area.

我用夹失掉较小的光栅文件为较小的地域。

youdao