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Fast raster extraction and manipulation in R

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 is fully interoperable with the raster, sp, and sf packages.

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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
  • Cropping
  • Image patch flattening and reconstruction

For more information, see the velox project website.

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