F*s
2 楼
像一个"回"字?
w*a
3 楼
workaround:
Convert: big raster to big vector
small raster to small vector
Erase: small vector to erase big vector to get the donut.
clip: use donut to clip the big raster
Convert: big raster to big vector
small raster to small vector
Erase: small vector to erase big vector to get the donut.
clip: use donut to clip the big raster
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