Also, given that size and your 40 cm plot, your dpi of that image is > 10000 which I am sure is overkill. So perhaps best to dumb down the west.grd first, maybe with a gdal_* tool.
Also, given that size and your 40 cm plot, your dpi of that image is > 10000 which I am sure is overkill. So perhaps best to dumb down the west.grd first, maybe with a gdal_* tool.