velox is an R package for performing fast extraction and manipulation operations on geospatial raster data. velox is fast because:
- All raster operations are performed in C++.
- Geometric operations are implemented with the Boost Geometry libraries.
- All data is held in memory.
velox currently offers the following features:
- Raster value extraction given polygons, lines, or points
- Focal value calculation (i.e. moving window filters)
- Rasterization of polygons or lines
- Raster aggregation
- Image patch flattening and reconstruction
For more information, see the velox project website.