The purpose of this repository is help me remember how to perform various geoprocessing operations across Esri's ArcMap and R's sf and raster packages. Sometimes the tools use the same name, sometimes they don't.
| Operation | ArcMap | sf |
|---|---|---|
| Project New Coordinate System | Define Projection | st_transform, st_crs |
| Buffer | Buffer | st_buffer |
| Find Centroid | Field Calculator | st_centroid |
| Simplify Geometry | Simplify Polygon, Simplify Line | st_simplify |
| Triangulate Points | Create TIN | st_triangulate |
| Create Voronoi Polygons | Create Theissen Polygons | st_voronoi |
| Create Convex Hull | Minimum Bounding Geometry | st_convex_hull |
| Find Intersection | Intersect | st_intersect |
| Find Overlap | Identity | st_difference |
| Crop/Clip | Clip | st_crop, st_intersection |
| Spatial Join | Spatial Join | st_union, st_join |
| Calculate Proximity | Near | st_nearest_feature, st_nearest_point |
| Symmetrical Difference | Symmetrical Difference | st_sym_difference |
| Operation | ArcMap | raster |
|---|---|---|
| Manipulate Raster Values | Raster Math | values(r) <- {function}, calc, overlay |
| Vector to Raster | Polygon to Raster | rasterize |
| Extract Values by Point | Extract Multi Values to Points | extract |
| Project CRS | Project | crs, projectRaster |
| Change grid cell size | Environment Settings > Raster Analysis | aggregate |
| Reclassify Values | Reclassify | reclassify |
| Hillshade | Hillshade | hillShade |
| Create contours | Contour | contour |
| Zonal statistics | Zonal Statistics, Zonal Statistics as Table | zonal |
| Aspect/Direction | Aspect | direction |