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Line 70: ====ASC==== * DECIMAL_PRECISION=N - The number of decimal places in the output. This option is analogous to the <tt>"-decimal[N]"</tt> switch. Default - 3 ~~===Examples===~~ Runs a difference operation on GeoTIFF outputs.<br>▼ :<tt>grid_to_grid.exe -diff proposed.tif existing.tif</tt>▼ Runs a difference operation on GPKG outputs. The layer name needed is assumed to be the same as the database name.<br>▼ :<tt>grid_to_grid.exe -diff proposed.gpkg existing.gpkg</tt>▼ * Runs a difference operation on GeoPackage outputs where the layer name is different than the database name.<br>▼ :<tt>grid_to_grid.exe -diff "proposed_grid_results.gpkg >> proposed_max_h" "existing_grid_results.gpkg >> existing_max_h"</tt>▼ * Converts an ASC grid to a GeoTIFF with an LZW compression and horizontal predictor.<br>▼ :<tt>grid_to_grid.exe -conv -tif DEM_M01.asc -co COMPRESS=LZW -co PREDICTOR=2</tt>▼ * Runs a maximum operation on all FLT grids in a given location and outputs to a GeoPackage raster.<br>▼ :<tt>grid_to_grid.exe -max -out "output_grids.gpkg >> maximum_h" .flt</tt>▼ Converts GeoTIFF to a Cloud Optimised GeoTIFF. Requires <tt>-out</tt> flag since the extension for COG is also '.tif' and therefore the default output file would be the same as the input file.<br>▼ :<tt>grid_to_grid.exe -conv -cog DEM_M01.tif -out DEM_M01_COG.tif</tt>▼ =Operations= Line 94 ⟶ 80: Converts the file "DEM.asc" to.flt format.<br> :<tt>grid_to_grid.exe -conv -flt DEM.asc</tt> ▲ Converts an ASC grid to a GeoTIFF with an LZW compression and horizontal predictor.<br> ▲:<tt>grid_to_grid.exe -conv -tif DEM_M01.asc -co COMPRESS=LZW -co PREDICTOR=2</tt> ▲* Converts GeoTIFF to a Cloud Optimised GeoTIFF. Requires <tt>-out</tt> flag since the extension for COG is also '.tif' and therefore the default output file would be the same as the input file.<br> ▲:<tt>grid_to_grid.exe -conv -cog DEM_M01.tif -out DEM_M01_COG.tif</tt> ==Maximum== Line 107 ⟶ 97: Wildcard character "" is supported in filenames.<br> :<tt>grid_to_grid.exe -out Q100_Max_Levels.asc -max Q100_min_h.asc</tt> ▲ Runs a maximum operation on all FLT grids in a given location and outputs to a GeoPackage raster.<br> ▲:<tt>grid_to_grid.exe -max -out "output_grids.gpkg >> maximum_h" .flt</tt> ==Difference== Line 117 ⟶ 109: Creates new grids comparing the differences in flood levels and extents for: "difference.asc" = "after_h.asc" - "before_h.asc"<br> :<tt>grid_to_grid.exe -out difference.asc -dif after_h.asc before_h.asc</tt> ▲Runs a difference operation on GeoTIFF outputs.<br> ▲:<tt>grid_to_grid.exe -~~diff~~dif proposed.tif existing.tif</tt> ▲ Runs a difference operation on GPKG outputs. The layer name needed is assumed to be the same as the database name.<br> ▲:<tt>grid_to_grid.exe -diff proposed.gpkg existing.gpkg</tt> ▲* Runs a difference operation on GeoPackage outputs where the layer name is different than the database name.<br> ▲:<tt>grid_to_grid.exe -diff "proposed_grid_results.gpkg >> proposed_max_h" "existing_grid_results.gpkg >> existing_max_h"</tt> Secondary options (only one can be used):

GRID to GRID draft: Difference between revisions