sedona
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rs_clip(raster,polygon) get points offset and points missing
spark3.2.2+sedona1.7.2
raster fully covers the polygon
rs_clip(raster,polygon) to generate a clipped raster then save as a geotiff
If we treat the polygon as static , the clipped raster looks like moving letf one pixel and moving up one pixel , and some pixels are not nodata missing on the raster.
如果我们把polygon看作静止的,剪裁出来的tiff,放在global mapper看,像是向左、向上偏移了各一个像素,并且某些像素不是nodata的,被移除了