toasty cascade

The cascade operation computes lower-resolution tiles from higher-resolution tiles. The same algorithms apply to either studies or all-sky TOAST pyramids.

Usage

toasty cascade {--start DEPTH} PYRAMID-DIR

The PYRAMID-DIR argument gives the location of a directory containing tile pyramid data files. The --start DEPTH argument gives the depth at which tiles already exist. For instance, with --start 5, the pyramid should contain level-5 tiles, and the cascade will fill in tiles between levels 4 and 0, inclusive.