Package index • vaster

Package

Dimension, extent, and grid origin.

n_cell() x_res() y_res() n_row() n_col() xlim() ylim() x_min() x_max() y_min() y_max(): Grid
origin(): Origin of grid alignment

Map between cell index, row/column, and position.

cell_from_xy() cell_from_extent() extent_from_cell() rowcol_from_cell() xy_from_cell() x_from_cell() y_from_cell() col_from_cell() row_from_cell() cell_from_row() cell_from_col() cell_from_row_col() cell_from_rowcol_combine(): Cells
x_corner() y_corner() x_centre() y_centre() x_from_col() y_from_row() col_from_x() row_from_y() xy(): Coordinates

Reconcile an arbitrary extent with a grid.

align_extent(): Crop an extent, snapped to the grain
snap_extent() buffer_extent(): Snap extent to resolution (buffer extent)
vcrop(): Virtual grid modification
intersect_extent(): Intersect extent
extent_dimension(): Dimension for an aligned extent

Grid-to-grid lattice relationships: exact index arithmetic between grids that share a lattice. See vignette(“lattice-alignment”).

Derive or fit a grid specification.

Geotransforms, VRT extents, and RasterIO windows.

ts_te() gdal_te() gdal_ts(): Target size and extent for GDAL command line
extent_vrt(): Extents from VRT (virtual raster data set of GDAL)
geo_transform0(): Geo transform parameter creator
geo_world0() geotransform_to_world(): World file parameter creator
world_to_geotransform(): Create geotransform from world vector
extent_dim_to_gt(): Create geotransform from extent and dimension
gt_dim_to_extent(): Determine extent from geotransform vector and dimension
rasterio0(): GDAL RasterIO parameter creator
rasterio_idx() raster_sfio(): RasterIO index window
rasterio_to_sfio(): The sf/stars RasterIO list
sfio_to_rasterio(): sf package RasterIO from RasterIO window vector