GIS to GRASS command translation: Difference between revisions
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m (→ARC-INFO) |
m (→LATTICESPOT) |
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Discrepancies: | Discrepancies: | ||
*{spot_item} defaults to "SPOT" for LATTICESPOT, but must be explicitly defined for v.what.rast | *{spot_item} defaults to "SPOT" for LATTICESPOT, but must be explicitly defined for v.what.rast | ||
*{z_factor} must be applied the GRASS vector database after-the-fact. | *{z_factor} must be applied to the GRASS vector database after-the-fact. | ||
*LATTICESPOT performs a bilinear interpolation to assign raster values to the output vector, whereas v.what.rast uses nearest neighbor. | *LATTICESPOT performs a bilinear interpolation to assign raster values to the output vector, whereas v.what.rast uses nearest neighbor. | ||
Revision as of 23:05, 19 June 2006
Translation Quick Reference Table
| GIS Software/Module | GIS command/feature | GRASS command(s) |
|---|---|---|
| ESRI ARC-INFO/ARC | LATTICESPOT | v.what.rast |
Discussion
ESRI ARC-INFO
LATTICESPOT
| GIS command/feature | GRASS command(s) |
|---|---|
| LATTICESPOT <in_lattice> <in_cover> {spot_item} {z_factor} | v.what.rast vector=<in_cover> raster=<in_lattice> layer=layer column={spot_item} |
Discrepancies:
- {spot_item} defaults to "SPOT" for LATTICESPOT, but must be explicitly defined for v.what.rast
- {z_factor} must be applied to the GRASS vector database after-the-fact.
- LATTICESPOT performs a bilinear interpolation to assign raster values to the output vector, whereas v.what.rast uses nearest neighbor.