Changes between Version 57 and Version 58 of Grass7/RasterLib
- Timestamp:
- Apr 24, 2010, 1:14:23 PM (14 years ago)
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Grass7/RasterLib
v57 v58 38 38 * Function needed to check whether tiles are all null, or all the same value. 39 39 * What tile size should be used? Could be user/program specified, or standard value of something like 64x64. If there isn't a fixed value then there should be utility program that can convert tiled rasters to different tile sizes. 40 40 * However, row-oriented storage has the advantage that you can easily skip entire rows when downsampling. Using e.g. 64x1 "tiles" would provide both optimisations, but at the expense of reduced compression, as you need a pointer (8 bytes) for each tile, and the compression has to be restarted for each tile. 41 41 * Merge NULL file into main data array. 42 42