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Imports features from USGS Land Use and Land Cover files.
ImportGIRAS(array filenames, string new_db_name, array options)
| Argument | Contents |
|---|---|
| filenames | An array containing the path and file names of the files to import |
| new_db_name | The path and file name of the new geographic file |
| Option | Type | Contents |
|---|---|---|
| Edge Snapping | Boolean | Whether to snap tile boundary nodes to better match features across tiles (defaults to "False") |
| Label | String | A descriptive label for the geographic file |
| Layer Name | String | The name of the layer in the geographic file |
| Median Split | Boolean | If "True" special handling insures that entities which cross the 180 degree longitude line are imported properly; if "False" (the default), no special handling is invoked |
| Optimize | Boolean | Whether to optimize the geographic file automatically after the import (defaults to "True") |
| Snap Distance | Real | Distance in miles to snap tile boundary nodes |
| Table Filename | String | The path and name of the file in which attributes are stored; the file extension must be .BIN, .CSV, .DBF, or .TXT; a required option |
Land Use and Land Cover files are always imported as area layers.
ImportGIRAS({"c:\\lulcfiles\\boston.GIR"}, "landuse.dbd", {
{"Label", "Land Use and Land Cover"},
{"Layer Name", "LULC"},
{"Optimize", "True"},
{"Table Filename", "landuse.bin"}
})
| Error Type | Meaning |
|---|---|
| NotFound | The specified file could not be found |
| Error | The file is not a valid Land Use and Land Cover file |
| Function | Summary |
|---|---|
| GetGIRASInfo() | Collects summary information on the contents of a USGS Land Use and Land Cover file |
| ImportDEM() | Imports features from Digital Elevation Model files |
| ImportDLG() | Imports features from USGS Digital Line Graph files |
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