Generate Density Rasters from Polygon and Census Data // Creates continuous density raster surfaces by joining vector spatial layers with tabular data frameworks, normalizing values by ellipsoidal polygon area calculations. Reconciles discrete boundary-constrained census or survey counts with uniform grids. Accepts spatial objects in-memory or via file paths. Methods are based on spatial rasterization workflows implemented in the 'terra' package Hijmans (2025) https://rspatial.github.io/terra/.