tile_blocksize() may fail with multi-layer rasters #87
Description
Not sure how I missed this, but getTileExtents() expects 1 or 2 numbers and fileBlocksize() appears to return two number per layer as a matrix. Need to add a test to confirm and then fix this.
Would the blocksize ever differ among layers of the same raster? Seems like they shouldn't, since they are required to have the same resolution and projection. If that is true, I'll just take the first row.