I have a question about the shape of the raster to be cut out. If you specify a range in raster extraction and select crop, it will be cropped into a rectangular shape. I want to cut out a parallelogram instead of a rectangle. Is this possible? We know the coordinates of the four corners of the parallelogram.
No, a raster will always be stored as a rectangular matrix. What is possible, however, is to set the values of the raster out of the parallelogram to "NoData" (using clip). Compression algorithm will then reduce the size of your raster and it will "look" as if it had been cropped by a parallelogram if the NoData is displayed as transparent (which is the case by default).