| 37 | | This new GRASS GIS release comes with 2 new dedicated raster modules. The first one, G7:r.path, can be used to trace paths from different starting points following input directions, such as the outputs of G7:r.cost, G7:r.walk or G7:r.watershed. The second, G7:r.buildvrt, provides the very useful functionality of creating virtual rasters (VRT) mosaics from a list of input raster maps. This allows processing big areas while avoiding the creation of physical maps, especially useful when space is limited. |
| | 37 | This new GRASS GIS release comes with 2 new dedicated raster modules. The first one, G76:r.path, can be used to trace paths from different starting points following input directions, such as the outputs of G76:r.cost, G76:r.walk or G76:r.watershed, among others. The second, G76:r.buildvrt, provides the very useful functionality of creating virtual raster (VRT) mosaics from a list of input raster maps. This allows processing big areas while avoiding the creation of physical maps, especially useful when space is limited. |
| 41 | | Several other raster modules have been improved with new options, flags or parallelization support: |
| 42 | | * G7:r.proj: new pipeline option for high-accuracy reprojection |
| 43 | | * G7:r.info: recognize different types of raster maps: "raster" (GRASS native), "reclass" (reclassification of another raster map), "GDAL-link" (GRASS link to a GDAL raster band), "virtual" (virtual mosaic of raster maps) |
| 44 | | * G7:r.mapcalc: new functions floor(), ceil() (#769) |
| 45 | | * ... |
| | 41 | Several other raster modules have been improved with new options or flags: |
| | 42 | * G76:r.proj offers a new pipeline option for high-accuracy re-projection |
| | 43 | * G76:r.info recognizes different types of raster maps, i.e., "raster" (GRASS native), "reclass" (reclassification of another raster map), "GDAL-link" (GRASS link to a GDAL raster band), "virtual" (virtual mosaic of raster maps) |
| | 44 | * G76:r.mapcalc comes with new functions floor() and ceil() |
| | 45 | * G76:r.slope.aspect has a new -n flag to create aspect as degrees clockwise from North (azimuth) and a new -e flag to compute values at edges |
| | 46 | * G76:r.in.srtm now also supports the import of SRTM Water Body Data products (SWBD) |
| | 47 | * G76:r.random has a new seed option to set the seed of the RNG, making it possible to reproduce the same random pixels in different runs |
| | 48 | * G76:r.cost has a new solver option to control which direction is used in case of multiple directions with equal costs |
| | 49 | * G76:r.colors includes inferno, magma and plasma color tables as well as a new flag -d to list available rules with description (e.g. "srtm: color palette for Shuttle Radar Topography Mission elevation [range: -11000 to 8850]") |
| | 50 | |
| | 51 | [screenshot here ideally] |
| | 52 | |
| | 53 | Many raster modules use the new GRASS GIS API for coordinate transformation and are also ready to use PROJ.5 API if available (See Library changes section). This was a significant improvement and a great effort implemented during the OSGeo Code Sprint in Bonn. |
