convert_shapefile: Convert shapefile to extrapolation-grid

In James-Thorson/VAST: Vector-Autoregressive Spatio-Temporal (VAST) Model

Convert shapefile to extrapolation-grid

Description

convert_shapefile reads in a shapefile and creates an extrapolation with a chosen resolution

Usage

convert_shapefile(
  file_path,
  projargs = NULL,
  grid_dim_km = c(2, 2),
  projargs_for_shapefile = NULL,
  make_plots = FALSE,
  quiet = TRUE,
  area_tolerance = 0.05,
  ...
)

Arguments

file_path	path for shapefile on harddrive
projargs	A character string of projection arguments used to project the shapefile prior to construction an extrapolation-grid; the arguments must be entered exactly as in the PROJ.4 documentation; Default projargs=NULL uses UTM and infers the UTM zone based on the centroid of the shapefile.
grid_dim_km	numeric-vector with length two, giving the distance in km between cells in the automatically generated extrapolation grid; only used if Region="other"
projargs_for_shapefile	projection-arguments (e.g., as parsed by sp::CRS), that are used when reading shapefile and overriding any projection arguments already saved there; Default projargs_for_shapefile=NULL uses the projection arguments available in the shapefile
make_plots	Boolean indicating whether to visualize inputs and outputs as maps
...	other objects passed for individual regions (see example script)

Value

extrapolation-grid

Author(s)

Cecilia O'Leary, James Thorson

Examples

## Not run: 
 convert_shapefile( file_path="C:/Users/James.Thorson/Desktop/Work files/AFSC/2020-03 -- Add ICES grids/IBTS grids/BITS/Shapefile.shp", make_plots=TRUE )

## End(Not run)

James-Thorson/VAST documentation built on Feb. 9, 2025, 9:05 a.m.