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Graph Connectivity Rasters

graph_connectivity_rasters.Rd

Graph connectivity rasters calculation.

Usage

graph_connectivity_rasters(pu_raster, pre_graphs)

Arguments

pu_raster

SpatRaster object used as planning units for maching its non-NA cells with the coordinates described by the output of preprocess_graphs (pre_graphs). Its coordinates must correspond to the input given at get_metrics.

pre_graphs

output of get_metrics function.

Details

The graph connectivity per cell of pu_raster calculated by preprocess_graphs is transformed to a single SpatRaster object, where each layer corresponds to a different feature of pre_graphs. This pu_raster is used as SpatRaster object in terra::rasterize function and its exact non-NA values do not matter, but only the fact that they are non-NA.

Value

A SpatRaster object.

See also

preprocess_graphs, get_metrics

Examples

# Read connectivity files from folder and combine them
combined_edge_list <- preprocess_graphs(system.file("external", package="priorCON"),
                                        header = FALSE, sep =";")

# Set seed for reproducibility
set.seed(42)

# Detect graph communities using the s-core algorithm
pre_graphs <- get_metrics(combined_edge_list, which_community = "s_core")

# Planning Units SpatRaster object
pu_raster <- get_cost_raster()

# Get graph connectivity rasters
f1_s_core <- graph_connectivity_rasters(pu_raster, pre_graphs)

# Plot solution raster
terra::plot(f1_s_core, main="S-Core connectivity SpatRaster of f1")